C TRANSMISSION/TRANSAXLE

B
SECTION
AUTOMATIC TRANSAXLE AT

E
CONTENTS
RE4F04B TROUBLE DIAGNOSIS - BASIC INSPECTION ....... 71 F
A/T Fluid Check ...................................................... 71
TROUBLE DIAGNOSIS - INDEX ................................ 8 A/T Fluid Cooler Cleaning ...................................... 71
Alphabetical & P No. Index for DTC ......................... 8 Stall Test ................................................................. 74 G
PRECAUTIONS ........................................................ 10 Line Pressure Test .................................................. 77
Precautions for Supplemental Restraint System Road Test ............................................................... 78
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN- TROUBLE DIAGNOSIS - GENERAL DESCRIP-
SIONER” ................................................................ 10 H
TION .......................................................................... 93
Precautions for On Board Diagnostic (OBD) System Symptom Chart ....................................................... 93
of A/T and Engine .................................................. 10 TCM Terminals and Reference Value ................... 103
Precautions ............................................................ 10 CAN Communication ............................................ 106 I
Service Notice or Precautions ................................ 12 TROUBLE DIAGNOSIS FOR POWER SUPPLY .... 107
PREPARATION ......................................................... 14 Wiring Diagram — AT — MAIN ............................ 107
Special Service Tools ............................................. 14 Diagnostic Procedure ........................................... 108 J
Commercial Service Tools ...................................... 17 DTC P0705 PARK/NEUTRAL POSITION SWITCH. 110
A/T FLUID ................................................................. 18 Description ............................................................ 110
Changing A/T Fluid ................................................ 18 On Board Diagnosis Logic .................................... 110
Checking A/T Fluid ................................................. 18 K
Possible Cause ..................................................... 110
A/T Fluid Cooler Cleaning ...................................... 19 Diagnostic Trouble Code (DTC) Confirmation Pro-
OVERALL SYSTEM ................................................. 23 cedure ................................................................... 110
A/T Electrical Parts Location .................................. 23 Wiring Diagram — AT — PNP/SW ....................... 112 L
Circuit Diagram ...................................................... 24 Diagnostic Procedure ........................................... 113
Cross-sectional View .............................................. 25 DTC P0710 A/T FLUID TEMPERATURE SENSOR
Hydraulic Control Circuit ........................................ 26 CIRCUIT .................................................................. 116 M
Shift Mechanism ..................................................... 27 Description ............................................................ 116
Control System ....................................................... 36 On Board Diagnosis Logic .................................... 116
Control Mechanism ................................................ 38 Possible Cause ..................................................... 116
Control Valve .......................................................... 42 Diagnostic Trouble Code (DTC) Confirmation Pro-
ON BOARD DIAGNOSTIC SYSTEM DESCRIP- cedure ................................................................... 116
TION .......................................................................... 44 Wiring Diagram — AT — FTS .............................. 118
Introduction ............................................................ 44 Diagnostic Procedure ........................................... 120
OBD-II Function for A/T System ............................. 44 DTC P0720 VEHICLE SPEED SENSOR·A/T (REV-
One or Two Trip Detection Logic of OBD-II ............ 44 OLUTION SENSOR) ............................................... 122
OBD-II Diagnostic Trouble Code (DTC) ................. 44 Description ............................................................ 122
Malfunction Indicator Lamp (MIL) ........................... 48 On Board Diagnosis Logic .................................... 122
CONSULT-II Function (TCM) ................................. 48 Possible Cause ..................................................... 122
Diagnostic Procedure Without CONSULT-II ........... 59 Diagnostic Trouble Code (DTC) Confirmation Pro-
TROUBLE DIAGNOSIS - INTRODUCTION ............. 64 cedure ................................................................... 122
Introduction ............................................................ 64 Wiring Diagram — AT — VSSA/T ........................ 124
Work Flow .............................................................. 68 Diagnostic Procedure ........................................... 125

Revision: November 2006 AT-1 2006 Altima

DTC P0725 ENGINE SPEED SIGNAL ................... 127 On Board Diagnosis Logic .................................... 166
Description ............................................................ 127 Possible Cause ..................................................... 166
On Board Diagnosis Logic .................................... 127 Diagnostic Trouble Code (DTC) Confirmation Pro-
Possible Cause ..................................................... 127 cedure ................................................................... 166
Diagnostic Trouble Code (DTC) Confirmation Pro- Wiring Diagram — AT — LPSV ............................ 168
cedure ................................................................... 127 Diagnostic Procedure ............................................ 169
Wiring Diagram — AT — ENGSS ......................... 128 DTC P0750 SHIFT SOLENOID VALVE A ............... 172
Diagnostic Procedure ........................................... 129 Description ............................................................ 172
DTC P0731 A/T 1ST GEAR FUNCTION ................. 131 On Board Diagnosis Logic .................................... 172
Description ............................................................ 131 Possible Cause ..................................................... 172
On Board Diagnosis Logic .................................... 131 Diagnostic Trouble Code (DTC) Confirmation Pro-
Possible Cause ..................................................... 131 cedure ................................................................... 172
Diagnostic Trouble Code (DTC) Confirmation Pro- Wiring Diagram — AT — SSV/A ........................... 174
cedure ................................................................... 131 Diagnostic Procedure ............................................ 175
Wiring Diagram — AT — 1STSIG ......................... 133 DTC P0755 SHIFT SOLENOID VALVE B ............... 177
Diagnostic Procedure ........................................... 134 Description ............................................................ 177
DTC P0732 A/T 2ND GEAR FUNCTION ................ 136 On Board Diagnosis Logic .................................... 177
Description ............................................................ 136 Possible Cause ..................................................... 177
On Board Diagnosis Logic .................................... 136 Diagnostic Trouble Code (DTC) Confirmation Pro-
Possible Cause ..................................................... 136 cedure ................................................................... 177
Diagnostic Trouble Code (DTC) Confirmation Pro- Wiring Diagram — AT — SSV/B ........................... 179
cedure ................................................................... 136 Diagnostic Procedure ............................................ 180
Wiring Diagram — AT — 2NDSIG ........................ 138 DTC P1705 THROTTLE POSITION SENSOR
Diagnostic Procedure ........................................... 139 [ACCELERATOR PEDAL POSITION (APP) SEN-
DTC P0733 A/T 3RD GEAR FUNCTION ................ 141 SOR] ........................................................................ 182
Description ............................................................ 141 Description ............................................................ 182
On Board Diagnosis Logic .................................... 141 On Board Diagnosis Logic .................................... 182
Possible Cause ..................................................... 141 Possible Cause ..................................................... 182
Diagnostic Trouble Code (DTC) Confirmation Pro- Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ................................................................... 141 cedure ................................................................... 182
Wiring Diagram — AT — 3RDSIG ........................ 143 Diagnostic Procedure ............................................ 183
Diagnostic Procedure ........................................... 144 DTC P1760 OVERRUN CLUTCH SOLENOID
DTC P0734 A/T 4TH GEAR FUNCTION ................ 146 VALVE ...................................................................... 185
Description ............................................................ 146 Description ............................................................ 185
On Board Diagnosis Logic .................................... 146 On Board Diagnosis Logic .................................... 185
Possible Cause ..................................................... 146 Possible Cause ..................................................... 185
Diagnostic Trouble Code (DTC) Confirmation Pro- Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure ................................................................... 146 cedure ................................................................... 185
Wiring Diagram — AT — 4THSIG ........................ 148 Wiring Diagram — AT — OVRCSV ...................... 187
Diagnostic Procedure ........................................... 149 Diagnostic Procedure ............................................ 188
DTC P0740 TORQUE CONVERTER CLUTCH DTC U1000 CAN COMMUNICATION LINE ............ 190
SOLENOID VALVE ................................................. 153 Description ............................................................ 190
Description ............................................................ 153 On Board Diagnosis Logic .................................... 190
On Board Diagnosis Logic .................................... 153 Possible Cause ..................................................... 190
Possible Cause ..................................................... 153 DTC Confirmation Procedure ................................ 190
Diagnostic Trouble Code (DTC) Confirmation Pro- Wiring Diagram — AT — CAN .............................. 192
cedure ................................................................... 153 Diagnostic Procedure ............................................ 193
Wiring Diagram — AT — TCV .............................. 155 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
Diagnostic Procedure ........................................... 156 SENSOR CIRCUIT AND TCM POWER SOURCE).194
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 158 Description ............................................................ 194
Description ............................................................ 158 On Board Diagnosis Logic .................................... 194
On Board Diagnosis Logic .................................... 158 Possible Cause ..................................................... 194
Possible Cause ..................................................... 158 Diagnostic Trouble Code (DTC) Confirmation Pro-
Diagnostic Trouble Code (DTC) Confirmation Pro- cedure ................................................................... 194
cedure ................................................................... 158 Wiring Diagram — AT — BA/FTS ......................... 196
Wiring Diagram — AT — TCCSIG ........................ 160 Diagnostic Procedure ............................................ 197
Diagnostic Procedure ........................................... 161 DTC VEHICLE SPEED SENSOR MTR ................... 201
DTC P0745 LINE PRESSURE SOLENOID VALVE. 166 Description ............................................................ 201
Description ............................................................ 166 On Board Diagnosis Logic .................................... 201

Revision: November 2006 AT-2 2006 Altima

 Possible Cause .................................................... 201 Shift Lock Control Unit Reference Values ............ 262
Diagnostic Trouble Code (DTC) Confirmation Pro- Component Inspection .......................................... 263 A
cedure .................................................................. 201 SHIFT CONTROL SYSTEM .................................... 265
Wiring Diagram — AT — VSSMTR ...................... 203 Control Device ...................................................... 265
Diagnostic Procedure ........................................... 204 Control Cable ........................................................ 266 B
DTC TURBINE REVOLUTION SENSOR ............... 205 ON-VEHICLE SERVICE .......................................... 267
Description ........................................................... 205 Control Valve Assembly and Accumulators .......... 267
Wiring Diagram — AT — TRSA/T ........................ 206 Revolution Sensor Replacement .......................... 269
Diagnostic Procedure ........................................... 207 Turbine Revolution Sensor Replacement ............. 269 AT
Component Inspection ......................................... 208 Park/Neutral Position (PNP) Switch Adjustment . 269
DTC CONTROL UNIT (RAM), CONTROL UNIT Control Cable Adjustment ..................................... 270
(ROM) ..................................................................... 209 Differential Side Oil Seal Replacement ................ 270 D
Description ........................................................... 209 AIR BREATHER HOSE .......................................... 272
On Board Diagnosis Logic ................................... 209 Air Breather Hose - Air Duct Side ......................... 272
Possible Cause .................................................... 209 Air Breather Hose - Transaxle Side ...................... 273 E
Diagnostic Trouble Code (DTC) Confirmation Pro- REMOVAL AND INSTALLATION ........................... 275
cedure .................................................................. 209 Removal ............................................................... 275
Diagnostic Procedure ........................................... 210 Inspection ............................................................. 276
DTC CONTROL UNIT (EEP ROM) ..........................211 Installation ............................................................ 277 F
Description ............................................................211 OVERHAUL ............................................................ 278
Diagnostic Procedure ........................................... 212 Components ......................................................... 278
TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 213 Oil Channel ........................................................... 281 G
Wiring Diagram — AT — NONDTC ...................... 213 Locations of Adjusting Shims, Needle Bearings,
1. A/T Check (Position) Indicator Lamp Does Not Thrust Washers and Snap Rings .......................... 282
Come On .............................................................. 217 DISASSEMBLY ....................................................... 283 H
2. Engine Cannot Be Started In P and N Position. 219 Disassembly ......................................................... 283
3. In P Position, Vehicle Moves Forward or Back- REPAIR FOR COMPONENT PARTS ..................... 299
ward When Pushed .............................................. 220 Manual Shaft ........................................................ 299
I
4. In N Position, Vehicle Moves ............................ 221 Oil Pump ............................................................... 302
5. Large Shock. N → R Position .......................... 223 Control Valve Assembly ........................................ 306
6. Vehicle Does Not Creep Backward In R Position. 225 Control Valve Upper Body .................................... 315
7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Control Valve Lower Body .................................... 319 J
Position ................................................................ 228 Reverse Clutch ..................................................... 321
8. Vehicle Cannot Be Started From D1 ................. 231 High Clutch ........................................................... 324
9. A/T Does Not Shift: D1 → D2 or Does Not Kick- Forward and Overrun Clutches ............................ 328 K
down: D4 → D2 ..................................................... 234 Low & Reverse Brake ........................................... 334
10. A/T Does Not Shift: D2 → D3 ......................... 237 Rear Internal Gear, Forward Clutch Hub and Over-
11. A/T Does Not Shift: D3 → D4 .......................... 240 run Clutch Hub ...................................................... 337 L
12. A/T Does Not Perform Lock-up ...................... 243 Output Shaft, Idler Gear, Reduction Pinion Gear and
13. A/T Does Not Hold Lock-up Condition ........... 245 Bearing Retainer ................................................... 341
14. Lock-up Is Not Released ................................ 247 Band Servo Piston Assembly ............................... 346
15. Engine Speed Does Not Return To Idle (Light Final Drive ............................................................ 351 M
Braking D4 → D3 ) ................................................ 248 ASSEMBLY ............................................................. 356
16. Vehicle Does Not Start From D1 ..................... 250 Assembly (1) ......................................................... 356
17. A/T Does Not Shift: D4 → 33 , When A/T Selector Adjustment (1) ...................................................... 357
Lever D → 3 ......................................................... 251 Assembly (2) ......................................................... 362
18. A/T Does Not Shift: 33 → 22 , When Selector Adjustment (2) ...................................................... 369
Lever 3 → 2 Position ............................................ 252 Assembly (3) ......................................................... 371
19. A/T Does Not Shift: 22 → 11 , When Selector SERVICE DATA AND SPECIFICATIONS (SDS) .... 378
Lever 2 → 1 Position ............................................ 253 General Specifications .......................................... 378
20. Vehicle Does Not Decelerate By Engine Brake. 254 Shift Schedule ...................................................... 378
21. TCM Self-diagnosis Does Not Activate (PNP & Stall Revolution ..................................................... 378
3 Position Switches Circuit Checks), and Throttle Line Pressure ....................................................... 379
Position Sensor [Accelerator Pedal Position (APP) Control Valves ...................................................... 379
Sensor] Circuit Check .......................................... 254 Accumulator .......................................................... 379
A/T SHIFT LOCK SYSTEM .................................... 260 Clutch and Brakes ................................................ 380
Description ........................................................... 260 Final Drive ............................................................ 382
Shift Lock System Electrical Parts Location ......... 260 Planetary Carrier and Oil Pump ............................ 382
Wiring Diagram — SHIFT — ................................ 261 Input Shaft ............................................................ 383

Revision: November 2006 AT-3 2006 Altima

 Reduction Pinion Gear ......................................... 383 Check Before Engine is Started ............................ 445
Band Servo ........................................................... 384 Check at Idle ......................................................... 445
Output Shaft ......................................................... 384 Cruise Test - Part 1 ............................................... 447
Bearing Retainer ................................................... 385 Cruise Test - Part 2 ............................................... 448
Total End Play ....................................................... 385 Cruise Test - Part 3 ............................................... 449
Reverse Clutch End Play ...................................... 385 Shift Schedule ....................................................... 450
Removal and Installation ...................................... 385 Symptom Chart ..................................................... 451
Shift Solenoid Valves ............................................ 385 TCM Input/Output Signal Reference Values ......... 459
Solenoid Valves .................................................... 385 CONSULT-II Function (TCM) ................................ 462
A/T Fluid Temperature Sensor .............................. 386 Diagnostic Procedure Without CONSULT-II ......... 468
Revolution Sensor ................................................ 386 DTC U1000 CAN COMMUNICATION LINE ............ 471
Dropping Resistor ................................................. 386 Description ............................................................ 471
Turbine Revolution Sensor (Power Train Revolution On Board Diagnosis Logic .................................... 471
Sensor) ................................................................. 386 Possible Cause ..................................................... 471
DTC Confirmation Procedure ................................ 471
RE5F22A Wiring Diagram — AT — CAN .............................. 472
Diagnostic Procedure ............................................ 473
INDEX FOR DTC ..................................................... 387 DTC P0500 VEHICLE SPEED SENSOR MTR ....... 474
Alphabetical Index ................................................ 387 Description ............................................................ 474
DTC No. Index ...................................................... 388 On Board Diagnosis Logic .................................... 474
PRECAUTIONS ....................................................... 389 Possible Cause ..................................................... 474
Precautions for Supplemental Restraint System DTC Confirmation Procedure ................................ 474
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN- Diagnostic Procedure ............................................ 475
SIONER” ............................................................... 389 DTC P0613 TCM PROCESSOR ............................. 476
Precautions for On Board Diagnostic (OBD) System Description ............................................................ 476
of A/T and Engine ................................................. 389 On Board Diagnosis Logic .................................... 476
Precautions for A/T Assembly or TCM Replacement. 390 Possible Cause ..................................................... 476
Precautions ........................................................... 391 DTC Confirmation Procedure ................................ 476
Service Notice or Precautions .............................. 393 Diagnostic Procedure ............................................ 477
PREPARATION ....................................................... 394 DTC P0705 PARK/NEUTRAL POSITION SWITCH.478
Special Service Tools ........................................... 394 Description ............................................................ 478
Commercial Service Tools .................................... 397 On Board Diagnosis Logic .................................... 478
A/T FLUID ............................................................... 398 Possible Cause ..................................................... 478
Changing A/T Fluid ............................................... 398 DTC Confirmation Procedure ................................ 478
Checking A/T Fluid ............................................... 398 Wiring Diagram — AT — PNP/SW ....................... 479
A/T Fluid Cooler Cleaning .................................... 399 Diagnostic Procedure ............................................ 480
A/T CONTROL SYSTEM ........................................ 403 Component Inspection .......................................... 482
Cross-Sectional View ............................................ 403 DTC P0710 A/T FLUID TEMPERATURE SENSOR
Shift Mechanism ................................................... 404 CIRCUIT .................................................................. 483
TCM Function ....................................................... 421 Description ............................................................ 483
Input/Output Signal of TCM .................................. 422 On Board Diagnosis Logic .................................... 483
CAN Communication ............................................ 422 Possible Cause ..................................................... 483
Line Pressure Control ........................................... 423 DTC Confirmation Procedure ................................ 483
Shift Control .......................................................... 423 Wiring Diagram — AT — FTS ............................... 484
Lock-Up Control .................................................... 425 Diagnostic Procedure ............................................ 485
ON BOARD DIAGNOSTIC (OBD) SYSTEM .......... 427 Component Inspection .......................................... 487
Introduction ........................................................... 427 DTC P0711 FLUID TEMPERATURE SENSOR PER-
OBD-II Function for A/T System ........................... 427 FORMANCE ............................................................ 488
One or Two Trip Detection Logic of OBD-II .......... 427 Description ............................................................ 488
OBD-II Diagnostic Trouble Code (DTC) ............... 427 On Board Diagnosis Logic .................................... 488
Malfunction Indicator Lamp (MIL) ......................... 430 Possible Cause ..................................................... 488
TROUBLE DIAGNOSIS .......................................... 431 DTC Confirmation Procedure ................................ 488
DTC Inspection Priority Chart ............................... 431 Wiring Diagram — AT — FTSP ............................ 489
Fail-Safe ............................................................... 431 Diagnostic Procedure ............................................ 490
How To Perform Trouble Diagnosis For Quick and Component Inspection .......................................... 492
Accurate Repair .................................................... 434 DTC P0717 TURBINE REVOLUTION SENSOR CIR-
A/T Electrical Parts Location ................................. 439 CUIT ......................................................................... 493
Circuit Diagram ..................................................... 440 Description ............................................................ 493
Inspections Before Trouble Diagnosis .................. 441 On Board Diagnosis Logic .................................... 493

Revision: November 2006 AT-4 2006 Altima

 Possible Cause .................................................... 493 Possible Cause ..................................................... 529
DTC Confirmation Procedure ............................... 493 DTC Confirmation Procedure ............................... 529 A
Wiring Diagram — AT — TRSC ........................... 494 Wiring Diagram — AT — TCCSIG ........................ 530
Diagnostic Procedure ........................................... 495 Diagnostic Procedure ........................................... 531
Component Inspection ......................................... 496 DTC P0745 PRESSURE CONTROL SOLENOID B
DTC P0722 VEHICLE SPEED SENSOR A/T (REV- VALVE A (LINE PRESSURE) ................................. 532
OLUTION SENSOR) CIRCUIT ............................... 497 Description ............................................................ 532
Description ........................................................... 497 On Board Diagnosis Logic .................................... 532
On Board Diagnosis Logic ................................... 497 Possible Cause ..................................................... 532 AT
Possible Cause .................................................... 497 DTC Confirmation Procedure ............................... 532
DTC Confirmation Procedure ............................... 497 Wiring Diagram — AT — PC/A ............................. 533
Wiring Diagram — AT — VSSATC ....................... 498 Diagnostic Procedure ........................................... 534 D
Diagnostic Procedure ........................................... 499 Component Inspection .......................................... 536
Component Inspection ......................................... 500 DTC P0750 SHIFT SOLENOID VALVE A ............... 537
DTC P0726 ENGINE SPEED INPUT CIRCUIT PER- Description ............................................................ 537 E
FORMANCE ........................................................... 501 On Board Diagnosis Logic .................................... 537
Description ........................................................... 501 Possible Cause ..................................................... 537
On Board Diagnosis Logic ................................... 501 DTC Confirmation Procedure ............................... 537
Possible Cause .................................................... 501 Wiring Diagram — AT — SSV/A ........................... 538 F
DTC Confirmation Procedure ............................... 501 Diagnostic Procedure ........................................... 539
Diagnostic Procedure ........................................... 501 Component Inspection .......................................... 541
DTC P0731 A/T 1ST GEAR FUNCTION ................ 503 DTC P0755 SHIFT SOLENOID VALVE B ............... 542 G
Description ........................................................... 503 Description ............................................................ 542
On Board Diagnosis Logic ................................... 503 On Board Diagnosis Logic .................................... 542
Possible Cause .................................................... 503 Possible Cause ..................................................... 542 H
DTC Confirmation Procedure ............................... 503 DTC Confirmation Procedure ............................... 542
Wiring Diagram — AT — 1STSIG ........................ 504 Wiring Diagram — AT — SSV/B ........................... 543
Diagnostic Procedure ........................................... 505 Diagnostic Procedure ........................................... 544
I
DTC P0732 A/T 2ND GEAR FUNCTION ................ 506 Component Inspection .......................................... 546
Description ........................................................... 506 DTC P0760 SHIFT SOLENOID VALVE C ............... 547
On Board Diagnosis Logic ................................... 506 Description ............................................................ 547
Possible Cause .................................................... 506 On Board Diagnosis Logic .................................... 547 J
DTC Confirmation Procedure ............................... 506 Possible Cause ..................................................... 547
Wiring Diagram — AT — 2NDSIG ........................ 508 DTC Confirmation Procedure ............................... 547
Diagnostic Procedure ........................................... 510 Wiring Diagram — AT — SSV/C .......................... 548 K
DTC P0733 A/T 3RD GEAR FUNCTION ................ 512 Diagnostic Procedure ........................................... 549
Description ........................................................... 512 Component Inspection .......................................... 551
On Board Diagnosis Logic ................................... 512 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON. 552 L
Possible Cause .................................................... 512 Description ............................................................ 552
DTC Confirmation Procedure ............................... 512 On Board Diagnosis Logic .................................... 552
Wiring Diagram — AT — 3RDSIG ........................ 514 Possible Cause ..................................................... 552
Diagnostic Procedure ........................................... 516 DTC Confirmation Procedure ............................... 552 M
DTC P0734 A/T 4TH GEAR FUNCTION ................ 518 Wiring Diagram — AT — SSV/CS ........................ 553
Description ........................................................... 518 Diagnostic Procedure ........................................... 554
On Board Diagnosis Logic ................................... 518 Component Inspection .......................................... 556
Possible Cause .................................................... 518 DTC P0765 SHIFT SOLENOID VALVE D ............... 557
DTC Confirmation Procedure ............................... 518 Description ............................................................ 557
Wiring Diagram — AT — 4THSIG ........................ 520 On Board Diagnosis Logic .................................... 557
Diagnostic Procedure ........................................... 521 Possible Cause ..................................................... 557
DTC P0735 A/T 5TH GEAR FUNCTION ................ 523 DTC Confirmation Procedure ............................... 557
Description ........................................................... 523 Wiring Diagram — AT — SSV/D .......................... 558
On Board Diagnosis Logic ................................... 523 Diagnostic Procedure ........................................... 559
Possible Cause .................................................... 523 Component Inspection .......................................... 561
DTC Confirmation Procedure ............................... 523 DTC P0770 SHIFT SOLENOID VALVE E ............... 562
Wiring Diagram — AT — 5THSIG ........................ 525 Description ............................................................ 562
Diagnostic Procedure ........................................... 527 On Board Diagnosis Logic .................................... 562
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 529 Possible Cause ..................................................... 562
Description ........................................................... 529 DTC Confirmation Procedure ............................... 562
On Board Diagnosis Logic ................................... 529 Wiring Diagram — AT — SSV/E ........................... 563

Revision: November 2006 AT-5 2006 Altima

 Diagnostic Procedure ........................................... 564 TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 598
Component Inspection .......................................... 566 A/T CHECK Indicator Lamp does not come on .... 598
DTC P0775 PRESSURE CONTROL SOLENOID Engine Cannot Be Started In “P” or “N” Position ... 600
VALVE B (SHIFT PRESSURE) ............................... 567 In “P” Position, Vehicle Moves When Pushed ....... 600
Description ............................................................ 567 In “N” Position, Vehicle Moves .............................. 601
On Board Diagnosis Logic .................................... 567 Large Shock (“N” to “D” Position) .......................... 602
Possible Cause ..................................................... 567 Vehicle Does Not Creep Backward In “R” Position.603
DTC Confirmation Procedure ............................... 567 Vehicle Does Not Creep Forward In “D” Position . 604
Wiring Diagram — AT — PC/B ............................. 568 Vehicle Cannot Be Started From D1 ..................... 605
Diagnostic Procedure ........................................... 569 A/T Does Not Shift: D1 → D2 ................................ 605
Component Inspection .......................................... 571 A/T Does Not Shift: D2 → D3 ................................ 606
DTC P0780 SHIFT ................................................... 572 A/T Does Not Shift: D3 → D4 ................................ 607
Description ............................................................ 572 A/T Does Not Shift: D4 → D5 ................................ 608
On Board Diagnosis Logic .................................... 572 A/T Does Not Perform Lock-up ............................. 609
Possible Cause ..................................................... 572 A/T Does Not Hold Lock-up Condition .................. 610
DTC Confirmation Procedure ............................... 572 Lock-up Is Not Released ....................................... 611
Wiring Diagram — AT — SFTFNC ....................... 573 Cannot Be Changed to Manual Mode ................... 612
Diagnostic Procedure ........................................... 575 A/T Does Not Shift: 5th gear → 4th gear .............. 613
DTC P0795 PRESSURE CONTROL SOLENOID A/T Does Not Shift: 4th gear → 3rd gear .............. 614
VALVE C (TCC AND SHIFT PRESSURE) .............. 576 A/T Does Not Shift: 3rd gear → 2nd gear ............. 614
Description ............................................................ 576 A/T Does Not Shift: 2nd gear → 1st gear ............. 615
On Board Diagnosis Logic .................................... 576 Vehicle Does Not Decelerate By Engine Brake .... 616
Possible Cause ..................................................... 576 TCM Self-diagnosis Does Not Activate ................. 617
DTC Confirmation Procedure ............................... 576 SHIFT CONTROL SYSTEM .................................... 619
Wiring Diagram — AT — PC/C ............................. 577 Control Device ...................................................... 619
Diagnostic Procedure ........................................... 578 Control Cable ........................................................ 620
Component Inspection .......................................... 580 A/T SHIFT LOCK SYSTEM ..................................... 621
DTC P0797 PRESSURE CONTROL SOLENOID Description ............................................................ 621
VALVE C STUCK ON .............................................. 581 Shift Lock System Electrical Parts Location .......... 621
Description ............................................................ 581 Wiring Diagram — AT — SHIFT ........................... 622
On Board Diagnosis Logic .................................... 581 Shift Lock Control Unit Reference Values ............. 623
Possible Cause ..................................................... 581 Component Inspection .......................................... 624
DTC Confirmation Procedure ............................... 581 ON-VEHICLE SERVICE .......................................... 626
Wiring Diagram — AT — PC/CS .......................... 582 Revolution Sensor Replacement .......................... 626
Diagnostic Procedure ........................................... 583 Turbine Revolution Sensor Replacement ............. 626
Component Inspection .......................................... 585 Park/Neutral Position (PNP) Switch Adjustment ... 626
DTC P0826 MANUAL MODE SWITCH CIRCUIT ... 586 ATF Cooler ............................................................ 627
Description ............................................................ 586 ATF Cooler Valve .................................................. 627
CONSULT-II Reference Value in Data Monitor Mode Control Cable Adjustment ..................................... 628
. 586 Side cover ............................................................. 629
On Board Diagnosis Logic .................................... 586 Control Valve Assembly ........................................ 629
Possible Cause ..................................................... 586 Terminal Cord Assembly ....................................... 629
DTC Confirmation Procedure ............................... 586 REMOVAL AND INSTALLATION ............................ 631
Wiring Diagram — AT — MMSW .......................... 587 Removal ................................................................ 631
Diagnostic Procedure ........................................... 589 Inspection After Removal ...................................... 632
Component Inspection .......................................... 591 Installation ............................................................. 632
Position Indicator .................................................. 591 OVERHAUL ............................................................. 634
DTC P0882 TCM POWER INPUT SIGNAL ............ 592 Components .......................................................... 634
Description ............................................................ 592 Locations of Needle Bearings, Bearing Races and
On Board Diagnosis Logic .................................... 592 Thrust Washers ..................................................... 642
Possible Cause ..................................................... 592 DISASSEMBLY ....................................................... 643
DTC Confirmation Procedure ............................... 592 Disassembly .......................................................... 643
Wiring Diagram — AT — PWR/IN ........................ 593 REPAIR FOR COMPONENT PARTS ...................... 662
Diagnostic Procedure ........................................... 595 Oil Pump, 2nd Coast Brake & 2nd Brake .............. 662
Component Inspection .......................................... 596 One-Way Clutch Outer Race Sub Assembly & 2nd
DTC P1726 ELECTRIC THROTTLE CONTROL Coast Brake Hub & One-Way Clutch No.1 ........... 668
SYSTEM .................................................................. 597 Transaxle Case Cover & B5 Brake ....................... 670
Description ............................................................ 597 Differential Gear Assembly ................................... 675

Revision: November 2006 AT-6 2006 Altima

ASSEMBLY ............................................................. 678 Time Lag ............................................................... 704
Assembly (1) ........................................................ 678 Shift Solenoid Valves ............................................ 704 A
Adjustment ........................................................... 685 Solenoid Valves .................................................... 704
Assembly (2) ........................................................ 686 Clutch and Brakes ................................................ 705
SERVICE DATA AND SPECIFICATIONS (SDS) .... 702 Final Drive ............................................................ 707 B
General Specifications ......................................... 702 A/T Fluid Temperature Sensor .............................. 708
Shift Schedule ...................................................... 702 Turbine Revolution Sensor ................................... 708
Stall Speed ........................................................... 703 Revolution Sensor ................................................ 708
Line Pressure ....................................................... 704 AT

Revision: November 2006 AT-7 2006 Altima

 TROUBLE DIAGNOSIS - INDEX
[RE4F04B]
TROUBLE DIAGNOSIS - INDEX PFP:00000

Alphabetical & P No. Index for DTC ECS0095J

NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT-190, "DTC U1000 CAN COMMUNICATION LINE"
ALPHABETICAL INDEX FOR DTC
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
A/T 1ST GR FNCTN P0731 AT-131
A/T 2ND GR FNCTN P0732 AT-136
A/T 3RD GR FNCTN P0733 AT-141
A/T 4TH GR FNCTN P0734 AT-146
A/T TCC S/V FNCTN P0744 AT-158
ATF TEMP SEN/CIRC P0710 AT-116
ENGINE SPEED SIG P0725 AT-127
L/PRESS SOL/CIRC P0745 AT-166
O/R CLTCH SOL/CIRC P1760 AT-185
PNP SW/CIRC P0705 AT-110
SFT SOL A/CIRC*2 P0750 AT-172
SFT SOL B/CIRC*2 P0755 AT-177
TCC SOLENOID/CIRC P0740 AT-153
THROTTLE POSI SEN*2 P1705 AT-182
VEH SPD SEN/CIR AT*3 P0720 AT-122
CAN COMM CIRCUIT U1000 AT-190
*1: These numbers are prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at
the same time.

Revision: November 2006 AT-8 2006 Altima

 TROUBLE DIAGNOSIS - INDEX
[RE4F04B]
P NO. INDEX FOR DTC
DTC
A
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
B
P0705 PNP SW/CIRC AT-110
P0710 ATF TEMP SEN/CIRC AT-116
P0720 VEH SPD SEN/CIR AT*3 AT-122 AT
P0725 ENGINE SPEED SIG AT-127
P0731 A/T 1ST GR FNCTN AT-131
P0732 A/T 2ND GR FNCTN AT-136
D
P0733 A/T 3RD GR FNCTN AT-141
P0734 A/T 4TH GR FNCTN AT-146 E
P0740 TCC SOLENOID/CIRC AT-153
P0744 A/T TCC S/V FNCTN AT-158
P0745 L/PRESS SOL/CIRC AT-166 F
P0750 SFT SOL A/CIRC*2 AT-172
P0755 SFT SOL B/CIRC*2 AT-177
G
P1705 THROTTLE POSI SEN*2 AT-182
P1760 O/R CLTCH SOL/CIRC AT-185
U1000 CAN COMM CIRCUIT AT-190 H
*1: These numbers are prescribed by SAE J2012.
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at I
the same time.

Revision: November 2006 AT-9 2006 Altima

 PRECAUTIONS
[RE4F04B]
PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” ECS0095K

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
● To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
● Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for On Board Diagnostic (OBD) System of A/T and Engine ECS0095L

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
● Be sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MIL to light up.
● Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
● Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.
● Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
● Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM or
ECM before returning the vehicle to the customer.
Precautions ECS0095M

● Before connecting or disconnecting the TCM harness con-

nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the TCM.
Because battery voltage is applied to TCM even if ignition
switch is turned off.

SEF289H

Revision: November 2006 AT-10 2006 Altima

 PRECAUTIONS
[RE4F04B]
● When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or A
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors.
B

AT

AAT470A

D
● Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. Refer to AT-37, "INPUT/OUTPUT SIGNAL OF TCM" . E

G
MEF040DA

● After performing each TROUBLE DIAGNOSIS, perform H

“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
The DTC should not be displayed in the “DTC CONFIRMA- I
TION PROCEDURE” if the repair is completed.
● Before proceeding with disassembly, thoroughly clean the out-
side of the transaxle. It is important to prevent the internal parts J
from becoming contaminated by dirt or other foreign matter.
● Disassembly should be done in a clean work area.
● Use lint-free cloth or towels for wiping parts clean. Common K
shop rags can leave fibers that could interfere with the operation SAT964I

of the transaxle.
● Place disassembled parts in order for easier and proper assembly. L
● All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
● Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled. M
● It is very important to perform functional tests whenever they are indicated.
● The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.
● Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
● Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.
● Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
● Replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to AT-12,
"ATF COOLER SERVICE" .
● After overhaul, refill the transaxle with new ATF.
● When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures when changing A/T fluid. Refer to AT-398, "Changing A/T Fluid" .

Revision: November 2006 AT-11 2006 Altima

 PRECAUTIONS
[RE4F04B]
Service Notice or Precautions ECS0095N

FAIL-SAFE
The TCM has an electronic Fail-Safe (limp home mode). This allows the vehicle to be driven even if a major
electrical input/output device circuit is damaged.
Under Fail-Safe, the vehicle always runs in third gear, even with a shift lever position of 1, 2 or D. The cus-
tomer may complain of sluggish or poor acceleration.
When the ignition key is turned ON following Fail-Safe operation, A/T check (position) indicator lamp blinks for
about 8 seconds. [For “TCM Self-diagnostic Procedure (No Tools)”, refer to AT-60, "TCM SELF-DIAGNOSTIC
PROCEDURE (NO TOOLS)" .]
The blinking of the A/T check (position) indicator lamp for about 8 seconds will appear only once and be
cleared. The customer may resume normal driving conditions.
Always follow the “Work Flow” (Refer to AT-68, "Work Flow" ).
The SELF-DIAGNOSIS results will be as follows:
● The first SELF-DIAGNOSIS will indicate damage to the vehicle speed sensor or the revolution sensor.
● During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:
● External leaks in the hub weld area.
● Converter hub is scored or damaged.
● Converter pilot is broken, damaged or fits poorly into crankshaft.
● Steel particles are found after flushing the cooler and cooler lines.
● Pump is damaged or steel particles are found in the converter.
● Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)
● Converter is contaminated with engine coolant containing antifreeze.
● Internal failure of stator roller clutch.
● Heavy clutch debris due to overheating (blue converter).
● Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:
● The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.
● The threads in one or more of the converter bolt holes are damaged.
● Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
● Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using clean-
ing solvent and compressed air after repair of A/T. Refer to CO-13, "RADIATOR" .
OBD-II SELF-DIAGNOSIS
● A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the A/T check (position) indicator or the malfunction indicator lamp (MIL). Refer to
the table on AT-49 for the indicator used to display each self-diagnostic result.
● The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure “HOW TO ERASE DTC” on AT-46 to complete the repair and avoid
unnecessary blinking of the MIL.
● The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the A/T check (position) indicator lamp does not indicate any malfunctions.
– park/neutral position (PNP) switch
– A/T 1st, 2nd, 3rd, or 4th gear function
– A/T TCC S/V function (lock-up).

Revision: November 2006 AT-12 2006 Altima

 PRECAUTIONS
[RE4F04B]
*: For details of OBD-II, refer to EC-53, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
● Certain systems and components, especially those related to OBD, may use a new style slide- A
locking type harness connector.
For description and how to disconnect, refer to GI-24, "How to Check Terminal" .
B

AT

Revision: November 2006 AT-13 2006 Altima

 PREPARATION
[RE4F04B]
PREPARATION PFP:00002

Special Service Tools ECS0095P

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
KV381054S0 ● Removing differential side oil seals
(J-34286) ● Removing differential side bearing outer
Puller race
● Removing idler gear bearing outer race
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
NT414

ST33400001 ● Installing differential side oil seal

(J-26082) (RH side)
Drift ● Installing oil seal on oil pump housing
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.

NT086

(J-34301-C) Measuring line pressure

Oil pressure gauge set
1 (J-34301-1)
Oil pressure gauge
2 (J-34301-2)
Hoses
3 (J-34298)
Adapter
4 (J-34282-2)
Adapter
5 (790-301-1230-A) AAT896

60° Adapter
6 (J-34301-15)
Square socket
ST27180001 Removing idler gear
(J-25726-A) a: 100 mm (3.94 in)
Puller b: 110 mm (4.33 in)
c: M8 x 1.25P

NT424

ST23540000 Removing and installing parking rod plate and

(J-25689-A) manual plate pins
Pin punch a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.

NT442

ST25710000 Aligning groove of manual shaft and hole of

(J-25689-A) transaxle case
Pin punch a: 2 mm (0.08 in) dia.

NT410

Revision: November 2006 AT-14 2006 Altima

 PREPARATION
[RE4F04B]
Tool number Description
(Kent-Moore No.) A
Tool name
KV32101000 ● Removing and installing manual shaft re-
(J-25689-A) taining pin B
Pin punch ● Removing and installing pinion mate shaft
lock pin
a: 4 mm (0.16 in) dia.
AT

NT410

KV31102400 ● Removing and installing clutch return D

(J-34285 and J-34285-87) springs
Clutch spring compressor ● Installing low and reverse brake piston
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
E

NT423

KV40100630 ● Installing reduction gear bearing inner race

F
(J-26092) ● Installing idler gear bearing inner race
Drift
a: 67.5 mm (2.657 in) dia.
b: 44 mm (1.73 in) dia. G
c: 38.5 mm (1.516 in) dia.

NT107 H
ST30720000 Installing idler gear bearing outer race
(J-25405 and J-34331) a: 77 mm (3.03 in) dia.
Bearing installer b: 55.5 mm (2.185 in) dia.
I

J
NT115

ST35321000 Installing output shaft bearing

( — ) a: 49 mm (1.93 in) dia.
Drift b: 41 mm (1.61 in) dia. K

L
NT073

(J-34291-A) ● Selecting oil pump cover bearing race and

Shim setting gauge set oil pump thrust washer M
● Selecting side gear thrust washer

NT101

ST33230000 Installing differential side bearing inner race

(J-25805-01) (RH side)
Drift a: 51 mm (2.01 in) dia.
b: 28.5 mm (1.122 in) dia.

NT084

Revision: November 2006 AT-15 2006 Altima

 PREPARATION
[RE4F04B]
Tool number Description
(Kent-Moore No.)
Tool name
(J-34290) Selecting differential side bearing adjusting
Shim selecting tool set shim

NT080

ST3306S001 Removing differential side bearing inner race

(J-22888-D) a: 38 mm (1.50 in) dia.
Differential side bearing puller set b: 28.5 mm (1.122 in) dia.
1 ST33051001 c: 130 mm (5.12 in)
(J-22888-D) d: 135 mm (5.31 in)
Puller e: 100 mm (3.94 in)
2 ST33061000
(J-8107-2)
AMT153
Adapter
ST3127S000 Checking differential side bearing preload
(J-25765-A)
Preload gauge
1 GG91030000
(J-25765-A)
Torque wrench
2 HT62940000
( — )
Socket adapter
3 HT62900000 NT124

( — )
Socket adapter
ST35271000 Installing idler gear
(J-26091) a: 72 mm (2.83 in) dia.
Drift b: 63 mm (2.48 in) dia.

NT115

(J-39713) ● Selecting differential side bearing adjusting

Preload adapter shim
● Checking differential side bearing preload

NT087

Revision: November 2006 AT-16 2006 Altima

 PREPARATION
[RE4F04B]
Commercial Service Tools ECS0095Q

A
Tool name Description
Puller ● Removing idler gear bearing inner race
● Removing and installing band servo piston B
snap ring

AT
NT077

Puller Removing reduction gear bearing inner race

a: 60 mm (2.36 in) dia. D
b: 35 mm (1.38 in) dia.

NT411

Drift Installing needle bearing on bearing retainer F

a: 36 mm (1.42 in) dia.

NT083
H
Drift Removing needle bearing from bearing retain-
er
a: 33.5 mm (1.319 in) dia.
I

J
NT083

Drift Installing differential side bearing outer race

(RH side)
a: 75 mm (2.95 in) dia. K

L
NT083

Power tool ● Removing transaxle assembly

● Removing transaxle oil pan M
● Removing transaxle case and cover

PBIC0190E

Revision: November 2006 AT-17 2006 Altima

 A/T FLUID
[RE4F04B]
A/T FLUID PFP:KLE40

Changing A/T Fluid ECS00EMQ

1. Run the engine to warm up the transaxle until the fluid is at full operating temperature “HOT”.
Temperature range
COLD : 30° – 50° C (86° – 122° F)
HOT : 50° – 80° C (122° – 176° F)
2. Stop the engine.
3. Remove the engine undercover.
4. Drain the A/T fluid by removing the drain plug. Reinstall the drain
plug to the specified torque using a new drain washer.
Drain plug : Refer to AT-275, "REMOVAL AND
INSTALLATION" .

WLIA0009E

5. Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the tran-
saxle with the same volume amount that was drained out.
CAUTION:
Do not overfill the transaxle.
Fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants" .
6. Run the engine at idle speed for five minutes.
7. Check fluid level and condition. Refer to AT-398, "Checking A/T Fluid" . If the fluid is still contaminated,
repeat step 2 through 5.
Checking A/T Fluid ECS00EMR

1. Warm up the engine.

2. Check for any transaxle fluid leaks.
3. Before driving, the fluid level can be checked at fluid tempera-
ture using the “COLD” range on the A/T fluid level gauge.
Temperature range
COLD : 30° – 50° C (86° – 122° F)
HOT : 50° – 80° C (122° – 176° F)

WLIA0013E

a. Park the vehicle on a level surface and set parking brake.

b. Start the engine and move the transaxle selector lever through each gear position. Leave the selector
lever in the “P” park position.

Revision: November 2006 AT-18 2006 Altima

 A/T FLUID
[RE4F04B]
c. Check the fluid level with the engine idling.
CAUTION: A
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge. B

AT

WLIA0008E

D
d. Remove the A/T fluid level gauge and wipe it clean with a lint-free paper.
e. Re-insert the A/T fluid level gauge into the charging pipe as far as it will go.
f. Remove the A/T fluid level gauge and note the reading. If the reading is at or below the low side of the E
range, add the necessary specified A/T fluid through the A/T fluid charging pipe and then re-insert the A/T
fluid level gauge.
CAUTION: F
● Do not overfill the transaxle.

● Firmly secure the A/T fluid level gauge into the A/T fluid charging pipe using the attached stop-
per, this will provide an accurate reading on the gauge, and will keep the gauge in position while G
driving.
4. Drive the vehicle for approximately 5 minutes at moderate speeds.
5. Re-check the fluid level at fluid temperatures using the “HOT” H
range on the A/T fluid level gauge.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
I
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge, and will keep the gauge
in position while driving.
J
Temperature range
COLD : 30° – 50° C (86° – 122° F)
HOT : 50° – 80° C (122° – 176° F) WLIA0013E K
6. Check the fluid for the following conditions:
● If the fluid is very dark or smells burned, refer to AT-71,
L
"TROUBLE DIAGNOSIS - BASIC INSPECTION" , for check-
ing the operation of the transaxle. Flush the A/T fluid cooling
system after completing any necessary repairs of the tran-
saxle. Refer to AT-19, "A/T Fluid Cooler Cleaning" . M
● If the fluid contains frictional material (from the clutches or
bands), clean the A/T fluid cooler after completing any neces-
sary repairs to the transaxle. Refer to AT-19, "A/T Fluid Cooler
Cleaning" .
SMA853B

A/T Fluid Cooler Cleaning ECS00EMS

Whenever an automatic transaxle is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.

Revision: November 2006 AT-19 2006 Altima

 A/T FLUID
[RE4F04B]
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any A/T fluid that remains in the cooler hoses to drain into
the oil pan.

SCIA5628E

5. Insert the extension adapter hose of a can of Transmission

Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

6. Hold the hose and can as high as possible and spray Transmis- SCIA5629E
sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.

SCIA5630E

9. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through the cooler outlet hose for 10 sec-
onds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler
Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through each steel line from the cooler side
back toward the transaxle for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform AT-400, "A/T FLUID COOLER DIAGNOSIS PROCEDURE" .
A/T FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.

Revision: November 2006 AT-20 2006 Altima

 A/T FLUID
[RE4F04B]
3. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out- A
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying B
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin. AT

● Do not breath vapors or spray mist.

4. Hold the hose and can as high as possible and spray Transmis- SCIA5629E
sion Cooler Cleaner in a continuous stream into the cooler outlet D
hose until fluid flows out of the cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose. E

SCIA5631E

H
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
I
8. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi)
through the cooler outlet hose to force any remaining A/T fluid
into the coffee filter. J
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform AT-401, "A/T FLUID COOLER INSPECTION PROCE-
DURE" . K
SCIA5632E

A/T FLUID COOLER INSPECTION PROCEDURE

1. Inspect the coffee filter for debris. L
a. If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and M
the procedure is ended.

SCIA2967E

Revision: November 2006 AT-21 2006 Altima

 A/T FLUID
[RE4F04B]
b. If one or more pieces of debris are found that are over 1mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The A/T fluid
cooler/radiator must be replaced and the inspection procedure is
ended. Refer to CO-13, "RADIATOR" .

SCIA5659E

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.

Revision: November 2006 AT-22 2006 Altima

 OVERALL SYSTEM
[RE4F04B]
OVERALL SYSTEM PFP:00000
A
A/T Electrical Parts Location ECS0095R

AT

WCIA0474E

Revision: November 2006 AT-23 2006 Altima

 OVERALL SYSTEM
[RE4F04B]
Circuit Diagram ECS0095S

BCWA0481E

Revision: November 2006 AT-24 2006 Altima

 OVERALL SYSTEM
[RE4F04B]
Cross-sectional View ECS0095T

AT

SCIA3174E

1. Band servo piston 2. Reverse clutch drum 3. Converter housing

4. Oil pump 5. Brake band 6. Reverse clutch
7. High clutch 8. Front planetary gear 9. Low one-way clutch
10. Rear planetary gear 11. Forward clutch 12. Overrun clutch
13. Low & reverse brake 14. Output gear 15. Idler gear
16. Forward one-way clutch 17. Pinion reduction gear 18. Final gear
19. Differential case 20. Input shaft 21. Torque converter
22. Side cover 23. Transaxle case

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 OVERALL SYSTEM
[RE4F04B]
Hydraulic Control Circuit ECS0095U

LCIA0040E

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 OVERALL SYSTEM
[RE4F04B]
Shift Mechanism ECS0095V

CONSTRUCTION A

AT

SAT998I G
1. Torque converter 2. Oil pump 3. Input shaft
4. Brake band 5. Reverse clutch 6. High clutch
7. Front sun gear 8. Front pinion gear 9. Front internal gear H
10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear
13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch
16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch I
19. Low & reverse brake 20. Parking pawl 21. Parking gear
22. Output shaft 23. Idle gear 24. Output gear
J
FUNCTION OF CLUTCH AND BRAKE
Clutch and brake components Abbr. Function
Reverse clutch 5 R/C To transmit input power to front sun gear 7 . K
High clutch 6 H/C To transmit input power to front planetary carrier 10 .
Forward clutch 15 F/C To connect front planetary carrier 10 with forward one-way clutch
16 . L
Overrun clutch 17 O/C To connect front planetary carrier 10 with rear internal gear 13 .
Brake band 4 B/B To lock front sun gear 7 .
M
Forward one-way clutch 16 F/O.C When forward clutch 15 is engaged, to stop rear internal gear 13
from rotating in opposite direction against engine revolution.
Low one-way clutch 18 L/O.C To stop front planetary carrier 10 from rotating in opposite direc-
tion against engine revolution.
Low & reverse brake 19 L & R/B To lock front planetary carrier 10 .

CLUTCH AND BAND CHART

Band servo For-
Low Low &
Re- For- Over- ward
High one- re-
verse ward run one- Lock-
Shift position clutch 2nd 3rd re- 4th way verse Remarks
clutch clutch clutch way up
6 apply lease apply clutch brake
5 15 17 clutch
18 19
16
PARK POSI-
P
TION
REVERSE
R O O
POSITION

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 OVERALL SYSTEM
[RE4F04B]
Band servo For-
Low Low &
Re- For- Over- ward
High one- re-
verse ward run one- Lock-
Shift position clutch 2nd 3rd re- 4th way verse Remarks
clutch clutch clutch way up
6 apply lease apply clutch brake
5 15 17 clutch
18 19
16
NEUTRAL
N
POSITION
1st O *1D B B
Automatic
2nd O *1 A O B shift
D*4
3rd O O *1 A *2C C B *5O 1⇔2⇔3
⇔4
4th O C *3C C O O
1st O D B B Automatic
2 shift
2nd O A O B 1⇔2⇐3
1st O O B O Locks (held
stationary) in
1
2nd O O O B 1st speed
1⇐2⇐3
*1: Operates when selector lever is set in 3 position.
*2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not contract
because oil pressure area on the “release” side is greater than that on the “apply” side.
*3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts.
*4: A/T will not shift to 4th when selector lever is set in 3 position.
*5: Operates when selector lever is set in 3 position.
O: Operates
A: Operates when throttle opening is less than 3/16, activating engine brake.
B: Operates during “progressive” acceleration.
C: Operates but does not affect power transmission.
D: Operates when throttle opening is less than 3/16, but does not affect engine brake.

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 OVERALL SYSTEM
[RE4F04B]
POWER TRANSMISSION
P and N Positions A

AT

SAT991I G
● P position
Similar to the N position, the clutches do not operate. The parking pawl engages with the parking gear to
mechanically hold the output shaft so that the power train is locked. H
● N position
Power from the input shaft is not transmitted to the output shaft because the clutches do not operate.
I

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 OVERALL SYSTEM
[RE4F04B]
11 Position

WCIA0355E

● Forward clutch As overrun clutch engages, rear internal gear is locked by the operation of low and reverse
● Low one-way clutch brake.
This is different from that of D1 , 21 , and 31 .
● Forward one-way clutch
● Overrun clutch
● Low and reverse brake
Engine brake Overrun clutch always engages, therefore engine brake can be obtained when decelerating.

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 OVERALL SYSTEM
[RE4F04B]
D1 and 21 Positions
A

AT

J
WCIA0356E

● Forward one-way clutch Rear internal gear is locked to rotate counterclockwise because of the functioning of these
● Forward clutch three clutches. K
● Low one-way clutch
Overrun clutch D1 : Overdrive control switch OFF and throttle opening is less than 3/16
engagement conditions 21 : Always engaged L
(Engine brake) At D1 and 21 positions, engine brake is not activated due to free turning of low one-way
clutch.
M

Revision: November 2006 AT-31 2006 Altima

 OVERALL SYSTEM
[RE4F04B]
D2 , 32 , 22 and 12 Positions

WCIA0357E

● Forward clutch Rear sun gear drives rear planetary carrier and combined front internal gear. Front internal
● Forward one-way clutch gear now rotates around front sun gear accompanying front planetary carrier.
As front planetary carrier transfers the power to rear internal gear through forward clutch and
● Brake band
forward one-way clutch, this rotation of rear internal gear increases the speed of rear plane-
tary carrier compared with that of the 1st speed.
Overrun clutch 32 : Gear selector lever is set in 3 position and throttle opening is less than 3/16
engagement conditions 32 , 22 and 12 : Always engaged

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 OVERALL SYSTEM
[RE4F04B]
D3 and 33 Positions
A

AT

J
WCIA0358E

● High clutch Input power is transmitted to front planetary carrier through high clutch. And front planetary
● Forward clutch carrier is connected to rear internal gear by operation of forward clutch and forward one-way K
clutch.
● Forward one-way clutch
This rear internal gear rotation and another input (the rear sun gear) accompany rear plane-
tary carrier to turn at the same speed.
L
Overrun clutch D3 and 33 : Selector lever is set in 3 position and throttle opening is less than 3/16
engagement conditions

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 OVERALL SYSTEM
[RE4F04B]
D4 Position

WCIA0360E

● High clutch Input power is transmitted to front carrier through high clutch.
● Brake band This front carrier turns around the sun gear which is fixed by brake band and makes front
internal gear (output) turn faster.
● Forward clutch (Does not affect
power transmission)
Engine brake At D4 position, there is no one-way clutch in the power transmission line and engine brake
can be obtained when decelerating.

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 OVERALL SYSTEM
[RE4F04B]
R Position
A

AT

J
WCIA0359E

● Reverse clutch Front planetary carrier is stationary because of the operation of low and reverse brake.
● Low and reverse brake Input power is transmitted to front sun gear through reverse clutch, which drives front inter- K
nal gear in the opposite direction.
Engine brake As there is no one-way clutch in the power transmission line, engine brake can be obtained
when decelerating. L

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 OVERALL SYSTEM
[RE4F04B]
Control System ECS0095W

OUTLINE
The automatic transaxle senses vehicle operating conditions through various sensors. It always controls the
optimum shift position and reduces shifting and lock-up shocks.
SENSORS TCM ACTUATORS
Park/neutral position (PNP) switch
Accelerator pedal position (APP) signal
Shift control Shift solenoid valve A
Engine speed signal
Line pressure control Shift solenoid valve B
A/T fluid temperature sensor
Lock-up control Overrun clutch solenoid valve
Revolution sensor
Overrun clutch control Torque converter clutch solenoid
Vehicle speed signal
Timing control valve
3 position switch
Fail-safe control Line pressure solenoid valve
ASCD control signal
Self-diagnosis A/T check (position) indicator
Stop lamp switch
CAN communication line control lamp
Turbine revolution sensor (power train
revolution sensor)

CONTROL SYSTEM

LCIA0041E

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 OVERALL SYSTEM
[RE4F04B]
TCM FUNCTION
The function of the TCM is to: A
● Receive input signals sent from various switches and sensors.
● Determine required line pressure, shifting point, lock-up operation, and engine brake operation.
B
● Send required output signals to the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCM
Sensors and solenoid valves Function AT
Park/neutral position (PNP) switch Detects select lever position and sends a signal to TCM.
Detects throttle valve position and sends a signal to TCM. (CAN communi-
Accelerator pedal position (APP) signal D
cation)
Engine speed signal Receives signal from ECM and controls lock-up control solenoid valve.
A/T fluid temperature sensor Detects transaxle fluid temperature and sends a signal to TCM.
E
Revolution sensor Detects output shaft rpm and sends a signal to TCM.
Used as an auxiliary vehicle speed sensor. Sends a signal when revolution
Input Vehicle speed sensor
sensor (installed on transaxle) malfunctions.
F
Sends a signal, which prohibits a shift to D4 (overdrive) position, to the
3 position switch
TCM.
Sends the cruise signal and D4 (overdrive) cancellation signal from ASCD G
ASCD control signal
control unit to TCM.
Stop lamp switch Send the lock-up release signal to the TCM at time of D4 (lock-up).
In CAN communication, control units are connected to 2 communication H
CAN communication lines (CAN H line, CAN L line) allowing a high rate of information transaxle
with less wiring.
Selects shifting point suited to driving conditions in relation to a signal sent I
Shift solenoid valve A/B
from TCM.
Regulates (or decreases) line pressure suited to driving conditions in rela-
Line pressure solenoid valve
tion to a signal sent from TCM.
J
Regulates (or decreases) lock-up pressure suited to driving conditions in
Torque converter clutch solenoid valve
Output relation to a signal sent from TCM.
Controls an “engine brake” effect suited to driving conditions in relation to a
Overrun clutch solenoid valve K
signal sent from TCM.
A/T check (position) indicator lamp Shows TCM faults, when A/T control components malfunction.
In CAN communication, control units are connected to 2 communication L
CAN communication lines (CAN H line, CAN L line) allowing a high rate of information transaxle
with less wiring.

Revision: November 2006 AT-37 2006 Altima

 OVERALL SYSTEM
[RE4F04B]
Control Mechanism ECS0095X

LINE PRESSURE CONTROL

TCM has various line pressure control characteristics to meet the driving conditions.
An ON-OFF duty signal is sent to the line pressure solenoid valve based on TCM characteristics.
Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid valve
to accommodate engine torque. This results in smooth shift operation.
Normal Control
The line pressure to throttle opening characteristics is set for suitable
clutch operation.

SAT003J

Back-up Control (Engine brake)

If the selector lever is shifted to 2 position while driving in D4 (O/D)
or D3 , great driving force is applied to the clutch inside the transmis-
sion. Clutch operating pressure (line pressure) must be increased to
deal with this driving force.

SAT004J

During Shift Change

The line pressure is temporarily reduced corresponding to a change
in engine torque when shifting gears (that is, when the shift solenoid
valve is switched for clutch operation) to reduce shifting shock.

SAT005J

At Low Fluid Temperature

● Fluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch
engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize
shifting quality.

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 OVERALL SYSTEM
[RE4F04B]
● The line pressure is reduced below 60°C (140°F) to prevent
shifting shock due to low viscosity of automatic transaxle fluid A
when temperature is low.

AT

SAT006J

D
● Line pressure is increased to a maximum irrespective of the
throttle opening when fluid temperature drops to −10°C (14°F).
This pressure rise is adopted to prevent a delay in clutch and E
brake operation due to extreme drop of fluid viscosity at low
temperature.
F

G
SAT007J

SHIFT CONTROL H
The shift is regulated entirely by electronic control to accommodate vehicle speed and varying engine opera-
tions. This is accomplished by electrical signals transmitted by the revolution sensor and the ECM (throttle
opening). This results in improved acceleration performance and fuel economy.
I
Control of Shift Solenoid Valves A and B
The shift solenoid valve performs simple ON-OFF operation. When
set to ON, the drain circuit closes and pilot pressure is applied to the J
shift valve.
The TCM activates shift solenoid valves A and B according to sig-
nals from the ECM (throttle opening) and revolution sensor to select
the optimum gear position on the basis of the shift schedule memo- K
rized in the TCM.

SAT008J

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 OVERALL SYSTEM
[RE4F04B]
Relation between shift solenoid valves A and B and gear positions
Gear position
Shift solenoid valve
D 1 , 2 1 , 11 D 2 , 2 2 , 12 D3 D4 (O/D) N-P
A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed)
B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)

Control of Shift Valves A and B

SAT009J

Pilot pressure generated by the operation of shift solenoid valves A and B is applied to the end face of shift
valves A and B.
The drawing above shows the operation of shift valve B. When the shift solenoid valve is ON, pilot pressure
applied to the end face of the shift valve overcomes spring force, moving the valve upward.
LOCK-UP CONTROL
The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to
increase power transmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent from
the TCM. The signal is converted to an oil pressure signal which controls the lock-up piston.
Conditions for Lock-up Operation
When vehicle is driven in 4th gear position, vehicle speed and throttle opening are detected. If the detected
values fall within the lock-up zone memorized in the TCM, lock-up is performed.
Selector lever D position 3 position
Gear position D4 3
Vehicle speed sensor More than set value
ECM (throttle opening) Less than set opening
A/T fluid temperature sensor More than 40°C (104°F)

Torque Converter Clutch Solenoid Valve Control

The torque converter clutch solenoid valve is controlled by the TCM.
The plunger closes the drain circuit during the OFF period, and
opens the circuit during the ON period. If the percentage of OFF-time
increases in one cycle, the pilot pressure drain time is reduced and
pilot pressure remains high.

SAT010J

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 OVERALL SYSTEM
[RE4F04B]
The torque converter clutch piston is designed to slip to adjust the
ratio of ON-OFF, thereby reducing lock-up shock. A
OFF-time INCREASING
↓
Amount of drain DECREASING
B
↓
Pilot pressure HIGH
↓
Lock-up RELEASING AT

SAT011J

D
Torque Converter Clutch Control Valve Operation

G
AAT155A

H
LOCK-UP RELEASED
The OFF-duration of the torque converter clutch solenoid valve is long, and pilot pressure is high. The pilot
pressure pushes the end face of the torque converter clutch control valve in combination with spring force to
move the valve to the left. As a result, converter pressure is applied to chamber A (torque converter clutch pis- I
ton release side). Accordingly, the torque converter clutch piston remains unlocked.
LOCK-UP APPLIED
When the OFF-duration of the torque converter clutch solenoid valve is short, pilot pressure drains and J
becomes low. Accordingly, the control valve moves to the right by the pilot pressure of the other circuit and
converter pressure. As a result, converter pressure is applied to chamber B, keeping the torque converter
clutch piston applied.
Also smooth lock-up is provided by transient application and release of the lock-up. K
OVERRUN CLUTCH CONTROL (ENGINE BRAKE CONTROL)
Forward one-way clutch is used to reduce shifting shocks in downshifting operations. This clutch transmits L
engine torque to the wheels. However, drive force from the wheels is not transmitted to the engine because
the one-way clutch rotates idle. This means the engine brake is not effective.
The overrun clutch operates when the engine brake is needed.
M
Overrun Clutch Operating Conditions

SAT014J

Selector lever position Gear position Throttle opening

D D1 , D2 , D3
Less than 3/16
2 21 , 22
1 11 , 12 At any position

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 OVERALL SYSTEM
[RE4F04B]
Overrun Clutch Solenoid Valve Control
The overrun clutch solenoid valve is operated by an ON-OFF signal
transmitted by the TCM to provide overrun clutch control (engine
brake control).
When this solenoid valve is ON, the pilot pressure drain port closes.
When it is OFF, the drain port opens.
During the solenoid valve ON pilot pressure is applied to the end
face of the overrun clutch control valve.

SAT015J

Overrun Clutch Control Valve Operation

When the solenoid valve is ON, pilot pressure is applied to the over-
run clutch control valve. This pushes up the overrun clutch control
valve. The line pressure is then shut off so that the clutch does not
engage.
When the solenoid valve is OFF, pilot pressure is not generated. At
this point, the overrun clutch control valve moves downward by
spring force. As a result, overrun clutch operation pressure is pro-
vided by the overrun clutch reducing valve. This causes the overrun
clutch to engage.
In the 1 position, the overrun clutch control valve remains pushed
down so that the overrun clutch is engaged at all times.

SAT016J

Control Valve ECS0095Y

FUNCTION OF CONTROL VALVES

Valve name Function
Pressure regulator valve, plug and sleeve Regulates oil discharged from the oil pump to provide optimum line pressure for all driv-
plug ing conditions.
Pressure modifier valve and sleeve Used as a signal supplementary valve to the pressure regulator valve. Regulates pres-
sure-modifier pressure (signal pressure) which controls optimum line pressure for all
driving conditions.
Pilot valve Regulates line pressure to maintain a constant pilot pressure level which controls lock-up
mechanism, overrun clutch, shift timing.
Accumulator control valve Regulates accumulator back-pressure to pressure suited to driving conditions.
Manual valve Directs line pressure to oil circuits corresponding to select positions.
Hydraulic pressure drains when the shift lever is in Neutral.
Shift valve A Simultaneously switches three oil circuits using output pressure of shift solenoid valve A
to meet driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve B.

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 OVERALL SYSTEM
[RE4F04B]
Valve name Function
A
Shift valve B Simultaneously switches two oil circuits using output pressure of shift solenoid valve B in
relation to driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve A. B
Overrun clutch control valve Switches hydraulic circuits to prevent engagement of the overrun clutch simultaneously
with application of the brake band in D4 . (Interlocking occurs if the overrun clutch
engages during D4 .)
AT
“1” reducing valve Reduces low & reverse brake pressure to dampen engine-brake shock when down-shift-
ing from the 1 position 12 to 11 .
Overrun clutch reducing valve Reduces oil pressure directed to the overrun clutch and prevents engine-brake shock.
D
In 1 and 2 positions, line pressure acts on the overrun clutch reducing valve to increase
the pressure-regulating point, with resultant engine brake capability.
Torque converter relief valve Prevents an excessive rise in torque converter pressure.
E
Torque converter clutch control valve, plug Activates or inactivates the lock-up function.
and sleeve Also provides smooth lock-up through transient application and release of the lock-up
system.
1-2 accumulator valve and piston Dampens the shock encountered when 2nd gear band servo contracts, and provides
F
smooth shifting.
3-2 timing valve Switches the pace that oil pressure is released depending on vehicle speed; maximizes
the high clutch release timing, and allows for soft down shifting. G
Shuttle valve Determines if the overrun clutch solenoid valve should control the 3-2 timing valve or the
overrun clutch control valve and switches between the two.
Cooler check valve At low speeds and with a small load when little heat is generated, saves the volume of H
cooler flow, and stores the oil pressure for lock up.

Revision: November 2006 AT-43 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION PFP:00000

Introduction ECS0095Z

The A/T system has two self-diagnostic systems.

The first is the emission-related on board diagnostic system (OBD-II) performed by the TCM (transaxle control
module) in combination with the ECM. The malfunction is indicated by the MIL (malfunction indicator lamp)
and is stored as a DTC in the ECM memory but not the TCM memory.
The second is the TCM original self-diagnosis indicated by the A/T check (position) indicator lamp. The mal-
function is stored in the TCM memory. The detected items are overlapped with OBD-II self-diagnostic items.
For details, refer to AT-44, "OBD-II Function for A/T System" .
OBD-II Function for A/T System ECS00960

The ECM provides emission-related on board diagnostic (OBD-II) functions for the A/T system. One function
is to receive a signal from the TCM used with OBD-related parts of the A/T system. The signal is sent to the
ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a
diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches
and solenoid valves are used as sensing elements.
The MIL automatically illuminates in One or Two Trip Detection Logic when a malfunction is sensed in relation
to A/T system parts.
One or Two Trip Detection Logic of OBD-II ECS00961

ONE TRIP DETECTION LOGIC

If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in
the ECM memory as a DTC. The TCM is not provided with such a memory function.
TWO TRIP DETECTION LOGIC
When a malfunction is sensed during the first test drive, it is stored in the ECM memory as a 1st trip DTC
(diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. — First Trip
If the same malfunction as that experienced during the first test drive is sensed during the second test drive,
the MIL will illuminate. — Second Trip
A/T-related parts for which the MIL illuminates during the first or second test drive are listed below.
MIL
Items
One trip detection Two trip detection
Shift solenoid valve A — DTC: P0750 X
Shift solenoid valve B — DTC: P0755 X
Accelerator pedal position (APP) sensor — DTC: P1705 X
Except above X

The “trip” in the “One or Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation.
OBD-II Diagnostic Trouble Code (DTC) ECS00962

HOW TO READ DTC AND 1ST TRIP DTC

DTC and 1st trip DTC can be read by the following methods.
( With CONSULT-II or GST) CONSULT-II or GST (Generic Scan Tool) Examples: P0705, P0710,
P0720, P0725, etc.
These DTCs are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
● 1st trip DTC No. is the same as DTC No.
● Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction. How-
ever, in case of the Mode II and GST they do not indicate whether the malfunction is still occurring
or occurred in the past and returned to normal.
CONSULT-II can identify them as shown below. Therefore, using CONSULT-II (if available) is rec-
ommended.

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 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
A sample of CONSULT-II display for DTC and 1st trip DTC is shown
in the following page. DTC or 1st trip DTC of a malfunction is dis- A
played in “SELF DIAGNOSIS” mode for “ENGINE” with CONSULT-
II. Time data indicates how many times the vehicle was driven after
the last detection of a DTC.
B

AT

BCIA0030E

D
If the DTC is being detected currently, the time data will be “0”.

G
SAT015K

If a 1st trip DTC is stored in the ECM, the time data will be “1t”. H

K
SAT016K

Freeze Frame Data and 1st Trip Freeze Frame Data

The ECM has a memory function, which stores the driving condition such as fuel system status, calculated L
load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II M
or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
details, refer to ! Hyper-link Error ! .
Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Priority Items
1 Freeze frame data Misfire — DTC: P0300 - P0306
Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM mem-
ory is erased.

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 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as
described following.
● If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours.
● When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD-II. For details, refer to ! Hyper-link Error ! .
● Diagnostic trouble codes (DTC)
● 1st trip diagnostic trouble codes (1st trip DTC)
● Freeze frame data
● 1st trip freeze frame data
● System readiness test (SRT) codes
● Test values
HOW TO ERASE DTC (WITH CONSULT-II)
● If a DTC is displayed for both ECM and TCM, it needs to be erased for both ECM and TCM.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Turn CONSULT-II “ON” and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5. Touch “ENGINE”.
6. Touch “SELF-DIAGNOSIS RESULTS”.

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 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
A

AT

J
WCIA0361E

HOW TO ERASE DTC (WITH GST)

1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 K
seconds and then turn it ON (engine stopped) again.
2. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No Tools)”. Refer to AT-59, "OBD-II SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step can be skipped when performing the L
diagnosis only to erase the DTC.)
3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-64, "How to Erase DTC" .
M
HOW TO ERASE DTC (NO TOOLS)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10
seconds and then turn it ON (engine stopped) again.
2. Perform “TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)”. Refer to AT-60, "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step can be skipped when performing the
diagnosis only to erase the DTC.)

Revision: November 2006 AT-47 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Malfunction Indicator Lamp (MIL) ECS00963

1. The malfunction indicator lamp will light up when the ignition

switch is turned ON without the engine running. This is for
checking the lamp.
● If the malfunction indicator lamp does not light up, refer to DI-
31, "WARNING LAMPS" .
(Or see EC-66, "Malfunction Indicator Lamp (MIL)" .)
2. When the engine is started, the malfunction indicator lamp
should go off.
If the lamp remains on, the on board diagnostic system has
detected an emission-related (OBD-II) malfunction. For details,
refer to ! Hyper-link Error ! . SAT964I

CONSULT-II Function (TCM) ECS00964

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
TCM diagnostic mode Description
Supports inspections and adjustments. Commands are transmitted to the TCM for setting the status
WORK SUPPORT suitable for required operation, input/output signals are received from the TCM and received data is
displayed.
SELF-DIAG RESULTS Displays TCM self-diagnosis results.
DATA MONITOR Displays TCM input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or "NG".
ECU PART NUMBER TCM part number can be read.

CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (AT-49, "SELF-DIAGNOSTIC

PROCEDURE (WITH CONSULT-II)" ), place check marks for results on the “Diagnostic Worksheet”, AT-65,
"DIAGNOSTIC WORKSHEET" . Reference pages are provide following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
– Actual shift schedule has more or less tolerance or allowance,
– Shift schedule indicated in Service Manual refers to the point where shifts start, and
– Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.

Revision: November 2006 AT-48 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
1. Touch on CONSULT-II, touch "START (NISSAN BASED A
VHCL)", and touch “ENGINE” for OBD-II detected items or touch
“A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground cir- B
cuit. Refer to AT-107, "TROUBLE DIAGNOSIS FOR POWER
SUPPLY" . If result is NG, refer to PG-4, "POWER SUPPLY
ROUTING CIRCUIT" .
AT

D
BCIA0029E

2. Touch “SELF DIAG RESULTS”.

Display shows malfunction experienced since the last erasing E
operation.
CONSULT-II performs “Real Time Diagnosis”.
Also, any malfunction detected while in this mode will be dis-
F
played at real time.

SAT987J

H
SELF-DIAGNOSTIC RESULT TEST MODE
Detected items TCM self-diagnosis OBD-II (DTC)
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode) Available by A/T check Available by malfunc- I
Malfunction is detected when... (position) indicator tion indicator lamp*2,
lamp or “A/T” on “ENGINE” on
“A/T” “ENGINE”
CONSULT-II CONSULT-II or GST
J
Park/neutral position (PNP) switch circuit ● TCM does not receive the correct
voltage signal (based on the gear — P0705
— PNP SW/CIRC position) from the switch.
K
● TCM does not receive the proper
Revolution sensor X P0720
voltage signal from the sensor.
VEH SPD SEN/
VHCL SPEED SEN·A/T L
CIR AT
Vehicle speed sensor (Meter)
● TCM does not receive the proper
VHCL SPEED X —
— voltage signal from the sensor. M
SEN·MTR
A/T 1st gear function ● A/T cannot be shifted to the 1st
A/T 1ST GR gear position even if electrical cir- — P0731*1
— cuit is good.
FNCTN
A/T 2nd gear function ● A/T cannot be shifted to the 2nd
A/T 2ND GR gear position even if electrical cir- — P0732*1
— cuit is good.
FNCTN
A/T 3rd gear function ● A/T cannot be shifted to the 3rd
A/T 3RD GR gear position even if electrical cir- — P0733*1
— cuit is good.
FNCTN
A/T 4th gear function ● A/T cannot be shifted to the 4th
A/T 4TH GR gear position even if electrical cir- — P0734*1
— cuit is good.
FNCTN

Revision: November 2006 AT-49 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Detected items TCM self-diagnosis OBD-II (DTC)
(Screen terms for CONSULT-II, “SELF
Available by A/T check Available by malfunc-
DIAGNOSIS” test mode) Malfunction is detected when... (position) indicator tion indicator lamp*2,
lamp or “A/T” on “ENGINE” on
“A/T” “ENGINE”
CONSULT-II CONSULT-II or GST
A/T TCC S/V function (lock-up)
● A/T cannot perform lock-up even if
A/T TCC S/V — P0744*1
— electrical circuit is good.
FNCTN
Shift solenoid valve A ● TCM detects an improper voltage
drop when it tries to operate the X P0750
SHIFT SOLENOID/V A SFT SOL A/CIRC solenoid valve.
Shift solenoid valve B ● TCM detects an improper voltage
drop when it tries to operate the X P0755
SHIFT SOLENOID/V B SFT SOL B/CIRC solenoid valve.
Overrun clutch solenoid valve ● TCM detects an improper voltage
OVERRUN CLUTCH S/ O/R CLUCH SOL/ drop when it tries to operate the X P1760
V CIRC solenoid valve.

T/C clutch solenoid valve ● TCM detects an improper voltage

TCC SOLENOID/ drop when it tries to operate the X P0740
T/C CLUTCH SOL/V solenoid valve.
CIRC
Line pressure solenoid valve ● TCM detects an improper voltage
L/PRESS SOL/ drop when it tries to operate the X P0745
LINE PRESSURE S/V solenoid valve.
CIRC
Throttle position sensor [accelerator pedal
position (APP) sensor]
● TCM receives an excessively low
X P1705
or high voltage from this sensor
THROTTLE POSI SEN TP/SEN/CIRC A/T

Engine speed signal ● TCM does not receive the proper

X P0725
ENGINE SPEED SIG voltage signal from the ECM.

A/T fluid temperature sensor

● TCM receives an excessively low
BATT/FLUID TEMP ATF TEMP SEN/ X P0710
or high voltage from the sensor.
SEN CIRC
Engine control ● The ECM-A/T communication line
X U1000
A/T COMM LINE — is open or shorted.

Turbine revolution sensor

● TCM does not receive proper volt-
X —
TURBINE REV age signal from sensor

TCM (RAM)
● TCM memory (RAM) is malfunc-
CONTROL UNIT — —
— tioning
(RAM)
TCM (ROM)
● TCM memory (ROM) is malfunc-
CONTROL UNIT — —
— tioning
(ROM)
TCM (EEP ROM)
● TCM memory (EEP ROM) is mal-
CONT UNIT(EEP — —
— functioning.
ROM)

Revision: November 2006 AT-50 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Detected items TCM self-diagnosis OBD-II (DTC)
(Screen terms for CONSULT-II, “SELF A
Available by A/T check Available by malfunc-
DIAGNOSIS” test mode) Malfunction is detected when... (position) indicator tion indicator lamp*2,
lamp or “A/T” on “ENGINE” on
“A/T” “ENGINE”
CONSULT-II CONSULT-II or GST B
Initial start ● This is not a malfunction message
(Whenever shutting off a power
X —
INITIAL START — supply to the TCM, this message AT
appears on the screen.)
No failure
(NO SELF DIAGNOSTIC FAILURE INDI-
CATED FURTHER TESTING MAY BE
● No failure has been detected. X X D
REQUIRED**)
X: Applicable
−: Not applicable E
*1: These malfunctions cannot be displayed by MIL if another malfunction is assigned to MIL.
*2: Refer to EC-66, "Malfunction Indicator Lamp (MIL)" .
F
DATA MONITOR MODE (A/T)
Monitor item
Selec- G
Item Display TCM Description Remarks
Main tion
Input
signals from
signals
menu
H
Vehicle speed sensor 1 VHCL/S ● Vehicle speed com- ● When racing engine in N or P
(A/T) SE·A/T puted from signal of with vehicle stationary, CON-
X —
(Revolution sensor) [km/h] or revolution sensor is SULT-II data may not indicate 0
[mph] displayed. km/h (0 mph). I
Vehicle speed sensor 2 VHCL/S ● Vehicle speed com- ● Vehicle speed display may not
(Meter) SE·MTR puted from signal of be accurate under approx. 10
[km/h] or X — vehicle speed sensor km/h (6 mph). It may not indi- J
[mph] is displayed. cate 0 km/h (0 mph) when vehi-
cle is stationary.
Throttle position sensor ● Throttle position sen-
THRTL POS K
[accelerator pedal posi- X — sor signal voltage is
SEN [V]
tion (APP) sensor] displayed
A/T fluid temperature FLUID TEMP ● A/T fluid temperature
sensor SE sensor signal voltage L
[V] is displayed.
X —
● Signal voltage lowers
as fluid temperature
M
rises.
Battery voltage BATTERY ● Source voltage of
VOLT X — TCM is displayed.
[V]
Engine speed ENGINE ● Engine speed, com- ● Engine speed display may not
SPEED puted from engine be accurate under approx. 800
[rpm] X X speed signal, is dis- rpm. It may not indicate 0 rpm
played. even when engine is not run-
ning.
● Checks changing
speed then performs
Turbine revolution sen- TURBINE
X — oil pressure control
sor REV
and torque down
control
Overdrive control OVERDRIVE ● ON/OFF state com-
switch SW puted from signal of
X —
[ON/OFF] 3 position switch is
displayed.

Revision: November 2006 AT-51 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Monitor item
Selec-
Item Display TCM Description Remarks
Main tion
Input
signals from
signals
menu
PN position (PNP) PN POSI SW ● ON/OFF state com-
switch [ON/OFF] puted from signal of
X —
PN position SW is
displayed.
R position switch R POSITION ● ON/OFF state com-
SW puted from signal of
X —
[ON/OFF] R position SW is dis-
played.
D position switch D POSITION ● ON/OFF state com-
SW puted from signal of
X —
[ON/OFF] D position SW is dis-
played.
2 position switch 2 POSITION ● ON/OFF status,
SW computed from sig-
X —
[ON/OFF] nal of 2 position SW,
is displayed.
1 position switch 1 POSITION ● ON/OFF status,
SW computed from sig-
X —
[ON/OFF] nal of 1 position SW,
is displayed.
ASCD cruise signal ASCD·CRUIS ● Status of ASCD
E cruise signal is dis-
[ON/OFF] played.
X —
ON ... Cruising state
OFF ... Normal run-
ning state
ASCD OD cut signal ASCD·OD ● Status of ASCD OD
CUT release signal is dis-
[ON/OFF] played.
X —
ON ... OD released
OFF ... OD not
released
Kickdown switch KICKDOWN ● ON/OFF status, ● This is displayed even when no
SW computed from sig- kickdown switch is equipped.
X —
[ON/OFF] nal of kickdown SW,
is displayed.
Stop lamp switch BRAKE SW ● ON/OFF status is
[ON/OFF] displayed.
ON ... Brake pedal is
X — —
depressed.
OFF ... Brake pedal
is released.
Selector lever position SLCT LVR ● Selector lever posi- ● A specific value used for con-
POSI tion data, used for trol is displayed if fail-safe is
— X
computation by activated due to error.
TCM, is displayed.
Vehicle speed VEHICLE ● Vehicle speed data,
SPEED used for computa-
— X
[km/h] or tion by TCM, is dis-
[mph] played.
Throttle position THROTTLE ● Throttle position ● A specific value used for con-
[Accelerator pedal POSI data, used for com- trol is displayed if fail-safe is
— X —
position (APP) sensor] [/8] putation by TCM, is activated due to error.
displayed.

Revision: November 2006 AT-52 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Monitor item
A
Selec-
Item Display TCM Description Remarks
Main tion
Input
signals from
signals
menu B
Gear position GEAR ● Gear position data
used for computa-
— X
tion by TCM, is dis-
played.
AT

Line pressure duty LINE PRES ● Control value of line

DTY pressure solenoid
[%] — X — valve, computed by D
TCM from each input
signal, is displayed.
Torque converter clutch TCC S/V ● Control value of E
solenoid valve duty DUTY torque converter
[%] clutch solenoid
— X —
valve, computed by
TCM from each input F
signal, is displayed.
Shift solenoid valve A SHIFT S/V A ● Control value of shift ● Control value of solenoid is dis-
[ON/OFF] solenoid valve A, played even if solenoid circuit G
— X — computed by TCM is disconnected.
from each input sig- The OFF signal is displayed if
nal, is displayed. solenoid circuit is shorted.
Shift solenoid valve B SHIFT S/V B ● Control value of shift
H
[ON/OFF] solenoid valve B,
— X — computed by TCM
from each input sig- I
nal, is displayed.
Overrun clutch sole- OVERRUN/C ● Control value of
noid valve S/V overrun clutch sole-
[ON/OFF] noid valve computed J
— X
by TCM from each
input signal is dis-
played.
K
Self-diagnosis display SELF-D DP ● Control status of A/T
lamp [A/T check (posi- LMP check (position) indi-
— X
tion) indicator lamp] [ON/OFF] cator lamp is dis-
played. L
● Ratio of engine revo-
Torque converter slip TC SLIP lution to input shaft
— —
ratio RATIO [0.000] revolution of torque M
converter.
● Difference in revolu- ● Display does not indicate
tion between input engine is stopped even if 0 rpm
Torque converter slip TC SLIP shaft revolution and — this is not a malfunction.
— —
speed SPEED [rpm] torque converter
input shaft revolu-
tion.
● Value measured by
Voltage [V] — — voltage probe is dis-
played.

Revision: November 2006 AT-53 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
Monitor item
Selec-
Item Display TCM Description Remarks
Main tion
Input
signals from
signals
menu
● Value measured by
pulse probe is dis-
played. If measure-
ment is impossible,
"#" sign is displayed.
Frequency [Hz] — —
"#" sign is also dis-
played at the final
data value until the
measurement result
is obtained.

DUTY-HI — — ● Duty cycle value for

measurement probe
DUTY-LOW — — is displayed.

PLS WIDTH-HI — — ● Measured pulse

width of measure-
PLS WIDTH-LOW — — ment probe is dis-
played.
X: Applicable
—: Not applicable
: Option

DTC WORK SUPPORT MODE WITH CONSULT-II

CONSULT-II Setting Procedure
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector, which is located in left side dash panel.

LCIA0042E

3. Turn ignition switch ON. (Do not start engine)

4. Touch “START (NISSAN BASED VHCL)”.

BCIA0029E

Revision: November 2006 AT-54 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
5. Touch “A/T”.
If "AT" is not indicated, go to GI-39, "Consult-II Data Link Con- A
nector (DLC) Circuit" .

AT

BCIA0030E D

6. Touch “DTC WORK SUPPORT”.

E

BCIA0031E

H
7. Touch select item menu (1ST, 2ND, etc.).

K
SAT018K

L
8. Touch “START”.

SAT589J

Revision: November 2006 AT-55 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
9. Perform driving test according to “DTC CONFIRMATION PRO-
CEDURE” in “TROUBLE DIAGNOSIS FOR DTC”.

SAT019K

● When testing conditions are satisfied, CONSULT-II screen

changes from “OUT OF CONDITION” to “TESTING”.

SAT591J

10. Stop vehicle. If “NG” appears on the screen, malfunction may

exist. Go to “DIAGNOSTIC PROCEDURE”.

SAT592J

SAT593J

Revision: November 2006 AT-56 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
11. Perform test drive to check gear shift feeling in accordance with
instructions displayed. A

AT

SAT594J

D
12. Touch “YES” or “NO”.

G
SAT595J

13. CONSULT-II procedure ended. H

K
SAT596J

SAT593J

If “NG” appears on the screen, a malfunction may exist. Go to “DIAGNOSTIC PROCEDURE”.

DTC WORK SUPPORT MODE

Revision: November 2006 AT-57 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
DTC work support item Description Check item
Following items for “A/T 1st gear function (P0731)” can be con- ● Shift solenoid valve A
firmed.
● Shift solenoid valve B
1ST GR FNCTN P0731 ● Self-diagnosis status (whether the diagnosis is being conducted
or not) ● Each clutch

● Self-diagnosis result (OK or NG) ● Hydraulic control circuit

Following items for “A/T 2nd gear function (P0732)” can be con-
firmed. ● Shift solenoid valve B
2ND GR FNCTN P0732 ● Self-diagnosis status (whether the diagnosis is being conducted ● Each clutch
or not) ● Hydraulic control circuit
● Self-diagnosis result (OK or NG)
Following items for “A/T 3rd gear function (P0733)” can be con-
firmed. ● Shift solenoid valve A
3RD GR FNCTN P0733 ● Self-diagnosis status (whether the diagnosis is being conducted ● Each clutch
or not) ● Hydraulic control circuit
● Self-diagnosis result (OK or NG)
● Shift solenoid valve A
Following items for “A/T 4th gear function (P0734)” can be con- ● Shift solenoid valve B
firmed.
● Overrun clutch solenoid valve
4TH GR FNCTN P0734 ● Self-diagnosis status (whether the diagnosis is being conducted
or not) ● Line pressure solenoid valve

● Self-diagnosis result (OK or NG) ● Each clutch

● Hydraulic control circuit
Following items for “A/T TCC S/V function (lock-up) (P0744)” can
● Torque converter clutch sole-
be confirmed.
noid valve
TCC S/V FNCTN P0744 ● Self-diagnosis status (whether the diagnosis is being conducted
● Each clutch
or not)
● Hydraulic control circuit
● Self-diagnosis result (OK or NG)

Revision: November 2006 AT-58 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
CAN DIAGNOSTIC SUPPORT MONITOR
CONSULT-II Setting Procedure A
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT II CONVERTER to data
link connector, which is located in left side dash panel. B

AT

D
LCIA0042E

E
3. Turn ignition switch ON. (Do not start engine.)
4. Touch “START (NISSAN BASED VHCL)”.

H
BCIA0029E

5. Touch “A/T”.
If "AT" is not indicated, go to GI-39, "Consult-II Data Link Con- I
nector (DLC) Circuit" .

L
BCIA0030E

6. Touch “CAN DIAGNOSTIC SUPPORT MONITOR”.

M
Refer to LAN-15, "CAN Diagnostic Support Monitor" .

BCIA0031E

Diagnostic Procedure Without CONSULT-II ECS00965

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to EC-129, "Generic Scan Tool (GST) Function" .
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-66, "Malfunction Indicator Lamp (MIL)" .

Revision: November 2006 AT-59 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

1. CHECK A/T CHECK (POSITION) INDICATOR LAMP

1. Move selector lever to P position.
Start engine and warm it up to normal engine operating temper-
ature.
2. Turn ignition switch to OFF position.
3. Wait 5 seconds.
4. Turn ignition switch to ON position.
(Do not start engine.)

LCIA0043E

5. Does A/T check (position) indicator lamp come on for about 2

seconds?
Yes or No
Yes >> GO TO 2.
No >> Stop procedure. Perform AT-217, "1. A/T Check (Posi-
tion) Indicator Lamp Does Not Come On" before pro-
ceeding.

WCIA0458E

2. JUDGEMENT PROCEDURE STEP 1

1. Turn ignition switch to OFF position.
2. Push and hold shift lock button.
3. Depress the brake pedal, then move gear selector lever from P
to 3 position.
4. Wait 3 seconds.

WCIA0344E

5. Move selector lever to 2 position.

6. Release brake pedal.

>> GO TO 3.

LCIA0046E

Revision: November 2006 AT-60 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
3. JUDGEMENT PROCEDURE STEP 2 A
1. Move selector lever to 1 position.
2. Depress brake pedal.
3. Depress accelerator pedal fully and release it. B
4. The A/T check (position) indicator lamp will begin to flash.

AT
>> GO TO 4.

LCIA0047E

4. CHECK SELF-DIAGNOSTIC CODE F

Check A/T check (position) indicator lamp.

Refer to AT-61, "JUDGEMENT OF SELF-DIAGNOSIS CODE" . G

>> DIAGNOSIS END

H

WCIA0458E
J
JUDGEMENT OF SELF-DIAGNOSIS CODE
A/T check (position) indicator lamp:
K
All judgement flickers are the same. 1st judgement flicker is longer than others.

M
LCIA0049E LCIA0050E

All circuits that can be confirmed by self-diagnosis are OK. Revolution sensor circuit is short-circuited or disconnected.
Þ Go to AT-122, "DTC P0720 VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)" .
2nd judgement flicker is longer than others. 3rd judgement flicker is longer than others.

LCIA0051E LCIA0052E

Vehicle speed sensor circuit is short-circuited or disconnected. Throttle position sensor circuit is short-circuited or disconnected.
Þ Go to AT-201, "DTC VEHICLE SPEED SENSOR MTR" . Þ Go to AT-182, "DTC P1705 THROTTLE POSITION SENSOR
[ACCELERATOR PEDAL POSITION (APP) SENSOR]".

Revision: November 2006 AT-61 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
A/T check (position) indicator lamp:
4th judgement flicker is longer than others. 5th judgement flicker is longer than others.

LCIA0053E LCIA0054E

Shift solenoid valve A circuit is short-circuited or disconnected. Shift solenoid valve B circuit is short-circuited or disconnected.
Þ Go to AT-172, "DTC P0750 SHIFT SOLENOID VALVE A" . Þ Go to AT-177, "DTC P0755 SHIFT SOLENOID VALVE B" .
6th judgement flicker is longer than others. 7th judgement flicker is longer than others.

LCIA0055E LCIA0056E

Overrun clutch solenoid valve circuit is short-circuited or discon- Torque converter clutch solenoid valve circuit is short-circuited or
nected. disconnected.
Þ Go to AT-185, "DTC P1760 OVERRUN CLUTCH SOLENOID Þ Go to AT-153, "DTC P0740 TORQUE CONVERTER CLUTCH
VALVE" . SOLENOID VALVE" .
8th judgement flicker is longer than others. 9th judgement flicker is longer than others.

LCIA0057E LCIA0058E

A/T fluid temperature sensor is disconnected or TCM power Engine speed signal circuit is short-circuited or disconnected.
source circuit is damaged. Þ Go to AT-127, "DTC P0725 ENGINE SPEED SIGNAL" .
Þ Go to AT-116, "DTC P0710 A/T FLUID TEMPERATURE SEN-
SOR CIRCUIT" .
10th judgement flicker is longer than others. 11th judgement flicker is longer than others.

LCIA0059E LCIA0060E

Turbine revolution sensor circuit is short-circuited or discon- Line pressure solenoid valve circuit is short-circuited or discon-
nected. nected.
Þ Go to AT-205, "DTC TURBINE REVOLUTION SENSOR" . Þ Go to AT-166, "DTC P0745 LINE PRESSURE SOLENOID
VALVE" .

Revision: November 2006 AT-62 2006 Altima

 ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[RE4F04B]
A/T check (position) indicator lamp:
A
12th judgement flicker is longer than others.

AT
LCIA0061E

The ECM-A/T communication line is open or shorted.

Þ Go to AT-190, "DTC U1000 CAN COMMUNICATION LINE" .
Lamp turns off. Flickers as shown below. D

LCIA0062E LCIA0063E F
Park/neutral position (PNP) switch, and 3 position switch circuit is Battery power is low.
disconnected or TCM is damaged. Battery has been disconnected for a long time.
Þ Go to AT-254, "21. TCM Self-diagnosis Does Not Activate Battery is connected conversely.
(PNP & 3 Position Switches Circuit Checks), and Throttle (When reconnecting TCM connectors. — This is not a problem.) G
Position Sensor [Accelerator Pedal Position (APP) Sensor]
Circuit Check" .
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second H

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 TROUBLE DIAGNOSIS - INTRODUCTION
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TROUBLE DIAGNOSIS - INTRODUCTION PFP:00000

Introduction ECS00966

The TCM receives a signal from the vehicle speed sensor, ECM
(throttle opening) or park/neutral position (PNP) switch and provides
shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
SAT631IA
tion, etc.

It is much more difficult to diagnose a problem that occurs intermit-

tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only, may not find the cause of the problems. A road
test with CONSULT-II (or GST) or a circuit tester connected should
be performed. Follow the “Work Flow”. Refer to AT-68, "Work Flow" .

SAT632I

Before undertaking actual checks, take a few minutes to talk with a

customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such problems, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” like the
example on page AT-66 should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot driveability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
SEF234G

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DIAGNOSTIC WORKSHEET
Information from Customer A
KEY POINTS
WHAT ........ Vehicle & A/T model
WHEN ........ Date, Frequencies B
WHERE ..... Road conditions
HOW .......... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN AT
Trans. model Engine Mileage
Incident Date Manuf. Date In Service Date
D
Frequency ❏ Continuous ❏ Intermittent ( times a day)
Symptoms ❏ Vehicle does not move. (❏ Any position ❏ Particular position)
❏ No up-shift (❏ 1st → 2nd ❏ 2nd → 3rd ❏ 3rd → 4th) E
❏ No down-shift (❏ 4th → 3rd ❏ 3rd → 2nd ❏ 2nd → 1st)
❏ Lockup malfunction
❏ Shift point too high or too low.
F

❏ Shift shock or slip (❏ N → D ❏ Lockup ❏ Any drive position)

❏ Noise or vibration G
❏ No kickdown
❏ No pattern select
❏ Others H
( )
A/T check (position) indicator lamp Blinks for about 8 seconds.
❏ Continuously lit ❏ Not lit
I

Malfunction indicator lamp (MIL) ❏ Continuously lit ❏ Not lit

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Diagnostic Worksheet
1. ❏ Read the Fail-safe and listen to customer complaints. AT-12
2. ❏ CHECK A/T FLUID AT-71
❏ Leakage (Follow specified procedure)
❏ Fluid condition
❏ Fluid level
3. ❏ Perform STALL TEST and PRESSURE TEST. AT-74,
AT-77
❏ Stall test — Mark possible damaged components/others.
❏ Torque converter one-way clutch ❏ Low & reverse brake
❏ Reverse clutch ❏ Low one-way clutch
❏ Forward clutch ❏ Engine
❏ Overrun clutch ❏ Line pressure is low
❏ Forward one-way clutch ❏ Clutches and brakes except high clutch and
brake band are OK
❏ Pressure test — Suspected parts:
4. ❏ Perform all ROAD TEST and mark required procedures. AT-78
4- Check before engine is started. AT-80
1.
❏ SELF-DIAGNOSTIC PROCEDURE - Mark detected items.
❏ Park/neutral position (PNP) switch, AT-110
❏ A/T fluid temperature sensor, AT-116 .
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-122 .
❏ Engine speed signal, AT-127 .
❏ Turbine revolution sensor, AT-205 .
❏ Torque converter clutch solenoid valve, AT-153 .
❏ Line pressure solenoid valve, AT-166 .
❏ Shift solenoid valve A, AT-172 .
❏ Shift solenoid valve B, AT-177 .
❏ Throttle position sensor [accelerator pedal position (APP) sensor], AT-182 .
❏ Overrun clutch solenoid valve, AT-185 .
❏ Park/neutral position (PNP) & 3 position switches circuit checks, and throttle position sensor
[accelerator pedal position (APP) sensor circuit check AT-254 .
❏ A/T fluid temperature sensor, AT-116 .
❏ Vehicle speed sensor·MTR, AT-201 .
❏ CAN communication line, AT-190 .
❏ Control unit (RAM), Control unit (ROM), AT-209 .
❏ Control unit (EEP ROM), AT-211 .
❏ Battery
❏ Others

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4- Check at idle AT-80
2. A
❏ 1. A/T Check (Position) Indicator Lamp Does Not Come On, AT-217 .
❏ 2. Engine Cannot Be Started In P and N Position, AT-219 .
❏ 3. In P Position, Vehicle Moves Forward or Backward When Pushed, AT-220 .
❏ 4. In N Position, Vehicle Moves, AT-221 . B
❏ 5. Large Shock. N → R Position, AT-223 .
❏ 6. Vehicle Does Not Creep Backward In R Position, AT-225 .
❏ 7. Vehicle Does Not Creep Forward In D, 2 or 1 Position, AT-228 .
4- Cruise test AT-82
AT
3. AT-86
Part-1
❏ 8. Vehicle Cannot Be Started From D1 , AT-231 .
D
❏ 9. A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2 , AT-234 .
❏ 10. A/T Does Not Shift: D2 → D3 , AT-237 .
❏ 11. A/T Does Not Shift: D3 → D4 , AT-240 .
❏ 12. A/T Does Not Perform Lock-up, AT-243 . E
❏ 13. A/T Does Not Hold Lock-up Condition, AT-245 .
❏ 14. Lock-up Is Not Released, AT-247 .
❏ 15. Engine Speed Does Not Return To Idle (Light Braking D4 → D3 ), AT-248 .
Part-2 AT-89
F

❏ 16. Vehicle Does Not Start From D1 , AT-250 .

❏ 9. A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2 , AT-234 .
❏ 10. A/T Does Not Shift: D2 → D3 , AT-237 . G
❏ 11. A/T Does Not Shift: D3 → D4 , AT-240 .
Part-3 AT-91
4. H
❏ 17. A/T Does Not Shift: D4 → D3 When Gear Selector Lever D → 3, AT-251 .
❏ 15. Engine Speed Does Not Return To Idle (Engine Brake In D3 ), AT-248 .
❏ 18. A/T Does Not Shift: D3 → 22 , When Selector Lever D → 2 Position, AT-252 .
❏ 15. Engine Speed Does Not Return To Idle (Engine Brake In 22 ), AT-248 .
I
❏ 19. A/T Does Not Shift: 22 → 11 , When Selector Lever 2 → 1 Position, AT-253 .
❏ 20. Vehicle Does Not Decelerate By Engine Brake, AT-254 .
❏ SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
❏ Park/neutral position (PNP) switch, AT-110 J
❏ A/T fluid temperature sensor, AT-116 .
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-122 .
❏ Engine speed signal, AT-127 .
K
❏ Turbine revolution sensor, AT-205 .
❏ Torque converter clutch solenoid valve, AT-153 .
❏ Line pressure solenoid valve, AT-166 .
❏ Shift solenoid valve A, AT-172 . L
❏ Shift solenoid valve B, AT-177 .
❏ Throttle position sensor [accelerator pedal position (APP) sensor], AT-182 .
❏ Overrun clutch solenoid valve, AT-185 .
❏ Park/neutral position (PNP) & 3 position switches circuit checks, and throttle position sensor M
[accelerator pedal position (APP) sensor] circuit check, AT-254 .
❏ A/T fluid temperature sensor, AT-116 .
❏ Vehicle speed sensor·MTR, AT-201 .
❏ CAN communication line, AT-190 .
❏ Control unit (RAM), Control unit (ROM), AT-209 .
❏ Control unit (EEP ROM), AT-211 .
❏ Battery
❏ Others
5. ❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-267
6. ❏ Perform all ROAD TEST and re-mark required procedures. AT-78
7. ❏ Perform DTC CONFIRMATION PROCEDURE for following MIL indicating items and check out NG items. ! Hyper-link
Refer to ! Hyper-link Error ! . Error !,
! Hyper-link
❏ DTC (P0731) A/T 1st gear function, AT-131 .
Error !
❏ DTC (P0732) A/T 2nd gear function, AT-136 .
❏ DTC (P0733) A/T 3rd gear function, AT-141 .
❏ DTC (P0734) A/T 4th gear function, AT-146 .
❏ DTC (P0744) A/T TCC S/V function (lock-up), AT-158 .

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8. ❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts. AT-49
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible AT-59
symptoms and the component inspection orders.)
9. ❏ Erase DTC from TCM and ECM memories. AT-46

Work Flow ECS00967

HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a problem. It is important to fully understand the symptoms or
conditions for a customer complaint.
Make good use of the two sheets provided, AT-65, "Information from Customer" and AT-66, "Diagnostic Work-
sheet" , to perform the best troubleshooting possible.

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WORK FLOW CHART
A

AT

SAT086JI

*1: AT-65 *2: AT-66 *3: AT-12

*4: AT-71 *5: AT-74, AT-77 *6: AT-78
*7: AT-48 *8: AT-44 *9: AT-44
*10: AT-110 *11: AT-211 *12: AT-213

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*13: AT-254 *14: AT-93 *15: AT-46
*16: AT-110 *17: AT-194 *18: ! Hyper-link Error ! , ! Hyper-link
Error !

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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TROUBLE DIAGNOSIS - BASIC INSPECTION PFP:00000
A
A/T Fluid Check ECS00968

FLUID LEAKAGE CHECK

1. Clean area suspected of leaking. — for example, mating surface
B
of converter housing and transaxle case.
2. Start engine, apply foot brake, place selector lever in D position
and wait a few minutes.
AT
3. Stop engine.

WCIA0053E
E

4. Check for fresh leakage.

F

SAT288G

FLUID CONDITION CHECK I

Fluid color Suspected problem

Dark or black with burned odor Wear of frictional material J
Water contamination — Road water
Milky pink
entering through filler tube or breather
Varnished fluid, light to dark brown and Oxidation — Over or under filling, — K
tacky Overheating

L
SAT638A

FLUID LEVEL CHECK

M
Refer to AT-398, "Checking A/T Fluid" .
A/T Fluid Cooler Cleaning ECS00969

Whenever an automatic transaxle is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses.

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any A/T fluid that remains in the cooler hoses to drain into
the oil pan.

SCIA2945E

5. Insert the extension adapter hose of a can of Transmission

Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

6. Hold the hose and can as high as possible and spray Transmis- SCIA2955E
sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.

SCIA2962E

9. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through the cooler outlet hose for 10 sec-
onds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler
Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through each steel line from the cooler side
back toward the transaxle for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform AT-72, "A/T FLUID COOLER DIAGNOSIS PROCEDURE" .
A/T FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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3. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out- A
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying B
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin. AT

● Do not breath vapors or spray mist.

4. Hold the hose and can as high as possible and spray Transmis- SCIA2955E
sion Cooler Cleaner in a continuous stream into the cooler outlet D
hose until fluid flows out of the cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose. E

SCIA2965E

H
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
I
8. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi)
through the cooler outlet hose to force any remaining A/T fluid
into the coffee filter. J
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform AT-73, "A/T FLUID COOLER INSPECTION PROCE-
DURE" . K
SCIA2966E

A/T FLUID COOLER INSPECTION PROCEDURE

1. Inspect the coffee filter for debris. L
a. If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and M
the procedure is ended.

SCIA2967E

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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b. If one or more pieces of debris are found that are over 1mm in
size and/or peeled clutch facing material is found in the coffee
filter, the fluid cooler is not serviceable. The radiator/fluid cooler
must be replaced and the inspection procedure is ended.

SCIA2971E

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.
Stall Test ECS0096A

STALL TEST PROCEDURE

1. Check A/T fluid and engine oil levels. If necessary, add fluid and
oil.

SAT647B

2. Drive vehicle for approximately 10 minutes or until fluid and oil reach operating temperature.
ATF operating temperature :50 - 80°C (122 - 176°F)
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
● It is good practice to mark the point of specified engine
rpm on indicator.

SAT513G

5. Start engine, apply foot brake, and place selector lever in D

position.
6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately release
throttle.
● During test, never hold throttle wide open for more than 5
seconds.

Stall revolution : 2,300 - 2,750 rpm

SAT514G

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8. Move selector lever to N position.
9. Cool off ATF. A
● Run engine at idle for at least one minute.

10. Repeat steps 5 through 9 with selector lever in 2, 1 and R posi-

tions. B

AT

LCIA0064E

D
JUDGEMENT OF STALL TEST
The test result and possible damaged components relating to each result are shown in the illustrations on next
page.
In order to pinpoint the possible damaged components, refer to AT-69, "WORK FLOW CHART" . E
NOTE:
Stall revolution is too high in D, 2 or 1 position:
● Slippage occurs in 1st gear but not in 2nd and 3rd gears. ..... Low one-way clutch slippage F
● Slippage occurs in the following gears:
1st through 3rd gears in 3 position and engine brake functions.
1st and 2nd gears in 2 position and engine brake functions with accelerator pedal released (fully closed G
throttle). ..... Forward clutch or forward one-way clutch slippage
Stall revolution is too high in R position:
● Engine brake does not function in 1 position. ..... Low & reverse brake slippage H
● Engine brake functions in 1 position. ..... Reverse clutch slippage
Stall revolution within specifications:
I
● Vehicle does not achieve speed of more than 80 km/h (50 MPH). ..... One-way clutch seizure in torque
converter housing
CAUTION:
J
Be careful since automatic fluid temperature increases abnormally.
● Slippage occurs in 3rd and 4th gears in D position. ..... High clutch slippage
● Slippage occurs in 2nd and 4th gear in D position. ..... Brake band slippage
K
● Engine brake does not function in 2nd and 3rd gears in D position, 2nd gear in 2 position, and 1st gear in
1 position.
Stall revolution less than specifications: L

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● Poor acceleration during starts. ..... One-way clutch seizure in torque converter

SCIA3256E

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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Line Pressure Test ECS0096B

LINE PRESSURE TEST PORTS A

Location of line pressure test ports are shown in the illustration.
● Always replace pressure plugs as they are self-sealing
bolts. B

AT

D
SAT301FA

LINE PRESSURE TEST PROCEDURE E

1. Check A/T fluid and engine oil levels. If necessary, add fluid and
oil.
2. Drive vehicle for approximately 10 minutes or until fluid and oil
F
reach operating temperature.
ATF operating temperature :50 - 80°C (122 -
176°F) G

H
SAT647B

3. Install pressure gauge to corresponding line pressure port.

I

SCIA5376E
L

4. Set parking brake and block wheels.

● Continue to depress brake pedal fully while line pressure M
test is being performed at stall speed.

SAT513G

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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5. Start engine and measure line pressure at idle and stall speed.
● When measuring line pressure at stall speed, follow the
stall test procedure.

AT-77, "Line Pressure : Refer to SDS, AT-379,

Test" "Line Pressure"

SAT493G

JUDGEMENT OF LINE PRESSURE TEST

Judgement Suspected parts
Line pressure is low in all positions. ● Oil pump wear
● Control piston damage
● Pressure regulator valve or plug sticking
● Spring for pressure regulator valve damaged
● Fluid pressure leakage between oil strainer and pres-
sure regulator valve
● Clogged strainer
Line pressure is low in particular position. ● Fluid pressure leakage between manual valve and par-
ticular clutch
● For example, line pressure is:
At idle − Low in R and 1 positions, but
− Normal in D and 2 positions.
Therefore, fluid leakage exists at or around low and
reverse brake circuit.
Refer to AT-27, "CLUTCH AND BAND CHART" .
Line pressure is high. ● A/T fluid temperature sensor damaged
● Line pressure solenoid valve sticking
● Short circuit of line pressure solenoid valve circuit
● Pressure modifier valve sticking
● Pressure regulator valve or plug sticking
● Open in dropping resistor circuit
Line pressure is low. ● Line pressure solenoid valve sticking
● Short circuit of line pressure solenoid valve circuit
At stall speed ● Pressure regulator valve or plug sticking
● Pressure modifier valve sticking
● Pilot valve sticking

Road Test ECS0096C

DESCRIPTION
● The purpose of the test is to determine overall performance of A/
T and analyze causes of problems.
● The road test consists of the following three parts:
1. Check before engine is started
2. Check at idle
3. Cruise test

SAT786A

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● Before road test, familiarize yourself with all test procedures and
items to check. A
● Conduct tests on all items until specified symptom is found.
Troubleshoot items which check out No Good after road test.
Refer to AT-44, "ON BOARD DIAGNOSTIC SYSTEM B
DESCRIPTION" and AT-213, "TROUBLE DIAGNOSIS FOR
SYMPTOMS" .
AT

SAT496G

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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1. CHECK BEFORE ENGINE IS STARTED

1. CHECK A/T CHECK (POSITION) INDICATOR LAMP

1. Park vehicle on flat surface.
2. Move selector lever to P position.
3. Turn ignition switch to OFF position. Wait at least 5 seconds.
4. Turn ignition switch to ON position. (Do not start engine.)
5. Does A/T check (position) indicator lamp come on for about 2
seconds?
Yes or No
Yes >> GO TO 2.
No >> Stop ROAD TEST. Go to AT-217, "1. A/T Check (Posi-
tion) Indicator Lamp Does Not Come On" .
LCIA0043E

2. CHECK A/T CHECK (POSITION) INDICATOR LAMP

Does A/T check (position) OFF indicator lamp flicker for about 8 sec-
onds?
Yes or No
Yes >> Perform self-diagnosis and check NG items on the
DIAGNOSTIC WORKSHEET, AT-66 . Refer to AT-60,
"TCM SELF-DIAGNOSTIC PROCEDURE (NO
TOOLS)" .
No >> 1. Turn ignition switch to OFF position.
2. Perform self-diagnosis and note NG items.
Refer to AT-60, "TCM SELF-DIAGNOSTIC PROCE-
DURE (NO TOOLS)" . WCIA0458E

3. Go to AT-80, "2. CHECK AT IDLE" .

2. CHECK AT IDLE

1. CHECK ENGINE START

1. Park vehicle on flat surface.
2. Move selector lever to P position.
3. Turn ignition switch to OFF position.
4. Turn ignition switch to START position.
5. Is engine started?
Yes or No
Yes >> GO TO 2.
No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-219, "2. Engine Cannot Be Started In P and N Posi-
tion" . Continue ROAD TEST.
LCIA0065E

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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2. CHECK ENGINE START A
1. Turn ignition switch to ACC position.
2. Move selector lever to D, 1, 2 or R position.
3. Turn ignition switch to START position. B
4. Is engine started?
Yes or No
AT
Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-219, "2. Engine Cannot Be Started In P and N Posi-
tion" . Continue ROAD TEST.
No >> GO TO 3. D

LCIA0066E
E
3. CHECK VEHICLE MOVE
1. Move selector lever to P position.
F
2. Turn ignition switch to OFF position.
3. Release parking brake.
G

LCIA0043E
I

4. Push vehicle forward or backward.

5. Does vehicle move when it is pushed forward or backward? J
6. Apply parking brake.
Yes or No
Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to K
AT-220, "3. In P Position, Vehicle Moves Forward or
Backward When Pushed" . Continue ROAD TEST.
No >> GO TO 4. L

SAT796A

M
4. CHECK VEHICLE MOVE
1. Start engine.
2. Move selector lever to N position.
3. Release parking brake.
4. Does vehicle move forward or backward?
Yes or No
Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-221, "4. In N Position, Vehicle Moves" . Continue
ROAD TEST.
No >> GO TO 5.

LCIA0064E

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 TROUBLE DIAGNOSIS - BASIC INSPECTION
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5. CHECK SHIFT LOCK
1. Apply foot brake.

SAT797A

2. Move selector lever to R position.

3. Is there large shock when changing from N to R position?
Yes or No
Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-223, "5. Large Shock. N → R Position" . Continue
ROAD TEST.
No >> GO TO 6.

LCIA0068E

6. CHECK VEHICLE MOVE

1. Release foot brake for several seconds.
2. Does vehicle creep backward when foot brake is released?
Yes or No
Yes >> GO TO 7.
No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-225, "6. Vehicle Does Not Creep Backward In R
Position" . Continue ROAD TEST.

SAT799A

7. CHECK VEHICLE MOVE

1. Move selector lever to D, 2 and 1 positions and check if vehicle
creeps forward.
2. Does vehicle creep forward in all three positions?
Yes or No
Yes >> Go to AT-82, "3. CRUISE TEST" .
No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to
AT-228, "7. Vehicle Does Not Creep Forward in D, 3, 2
or 1 Position" . Continue ROAD TEST.

LCIA0069E

3. CRUISE TEST
● Check all items listed in Parts 1 through 3.

Revision: November 2006 AT-82 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
With CONSULT-II
A
● Using CONSULT-II, conduct a cruise test and record the result.
● Print the result and ensure that shifts and lock-ups take place as
per Shift Schedule. Refer to AT-378, "Shift Schedule"
B

AT

D
SAT601J

CONSULT-II Setting Procedure

CAUTION: E
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Turn ignition switch OFF. F
2. Connect CONSULT-II to data link connector, which is located in
left side dash panel.
G

I
LCIA0042E

3. Turn ignition switch ON. J

4. Touch “START (NISSAN BASED VHCL)”.

BCIA0029E M

5. Touch “A/T”.

BCIA0030E

Revision: November 2006 AT-83 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
6. Touch “DATA MONITOR”.

BCIA0031E

7. Touch “MAIN SIGNALS” or “TCM INPUT SIGNALS”.

8. See “Numerical Display”, “Barchart Display” or “Line Graph Dis-
play”.

SAT175K

9. Touch “SETTING” to set recording condition (“AUTO TRIG” or

“MANU TRIG”) and touch “BACK”.
10. Touch “Start”.

SAT973J

11. When performing cruise test, touch “RECORD”.

SAT134K

Revision: November 2006 AT-84 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
12. After finishing cruise test part 1, touch “STOP”.
A

AT

SAT135K

D
13. Touch “STORE” and touch “BACK”.

G
SAT987J

K
SAT974J

14. Touch “DISPLAY”. L

15. Touch “PRINT”.
16. Check the monitor data printed out.
17. Continue cruise test part 2 and 3. M

SAT975J

Revision: November 2006 AT-85 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
Cruise Test — Part 1

1. CHECK STARTING GEAR (D1 ) POSITION

1. Drive vehicle for approximately 10 minutes to warm engine oil and ATF up to operating temperature.
ATF operating tempera- :50 - 80°C (122 - 176°F)
ture
2. Park vehicle on flat surface.
3. Set gear selector lever to D position.
4. Move selector lever to P position.
5. Start engine.

LCIA0043E

6. Move selector lever to D position.

LCIA0045E

7. Accelerate vehicle by constantly depressing accelerator pedal

half-way.
8. Does vehicle start from D1 ?
Read gear position.
Yes or No
Yes >> GO TO 2.
No >> Go to AT-231, "8. Vehicle Cannot Be Started From D1" .
Continue ROAD TEST.

SAT495G

Revision: November 2006 AT-86 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
2. CHECK SHIFT UP (D1 TO D2 )
A
Does A/T shift from D1 to D2 at the specified speed?
Read gear position, throttle opening and vehicle speed.
B
Specified speed when :Refer to AT-378, "Shift
shifting from D1 to D2 Schedule" .
Yes or No AT
Yes >> GO TO 3.
No >> Go to AT-234, "9. A/T Does Not Shift: D1 → D2 or Does
Not Kickdown: D4 → D2" . Continue ROAD TEST. D

SAT954I
E

3. CHECK SHIFT UP (D2 TO D3 )

F
Does A/T shift from D2 to D3 at the specified speed?
Read gear position, throttle opening and vehicle speed.
Specified speed when :Refer to AT-378, "Shift G
shifting from D2 to D3 Schedule"
Yes or No
Yes >> GO TO 4. H
No >> Go to AT-237, "10. A/T Does Not Shift: D2 → D3" . Con-
tinue ROAD TEST.
I

SAT955I
J
4. CHECK SHIFT UP (D3 TO D4 )

Does A/T shift from D3 to D4 at the specified speed? K

Read gear position, throttle opening and vehicle speed.
Specified speed when :Refer to AT-378, "Shift
L
shifting from D3 to D4 Schedule" .
Yes or No
Yes >> GO TO 5. M
No >> Go to AT-240, "11. A/T Does Not Shift: D3 → D4" . Con-
tinue ROAD TEST.

SAT956I

Revision: November 2006 AT-87 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
5. CHECK LOCK-UP (D4 TO D4 L/U)

Does A/T perform lock-up at the specified speed?

Read vehicle speed, throttle opening when lock-up duty becomes 94%.
Specified speed when :Refer to AT-378, "Shift
lock-up occurs Schedule" .
Yes or No
Yes >> GO TO 6.
No >> Go to AT-243, "12. A/T Does Not Perform Lock-up" .
Continue ROAD TEST.

SAT957I

6. CHECK HOLD LOCK-UP

Does A/T hold lock-up condition for more than 30 seconds?
Yes or No
Yes >> GO TO 7.
No >> Go to AT-245, "13. A/T Does Not Hold Lock-up Condition" .

7. CHECK SHIFT DOWN (D4 L/U TO D4 )

1. Release accelerator pedal.
2. Is lock-up released when accelerator pedal is released?
Yes or No
Yes >> GO TO 8.
No >> Go to AT-247, "14. Lock-up Is Not Released" . Continue
ROAD TEST.

SAT958I

8. CHECK SHIFT DOWN (D4 TO D3 )

1. Decelerate vehicle by applying foot brake lightly.

2. Does engine speed return to idle smoothly when A/T is shifted
from D4 to D3 ?
Read gear position and engine speed.
Yes or No
Yes >> 1. Stop vehicle.
2. Go to AT-89, "Cruise Test — Part 2" .
No >> Go to AT-248, "15. Engine Speed Does Not Return To
Idle (Light Braking D4 → D3 )" . Continue ROAD TEST.
SAT959I

Revision: November 2006 AT-88 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
Cruise Test — Part 2
A
1. CHECK STARTING GEAR (D1 ) POSITION
1. Confirm gear selector lever is in D position. B
2. Accelerate vehicle by half throttle again.
3. Does vehicle start from D1 ?
AT
Read gear position.
Yes or No
Yes >> GO TO 2. D
No >> Go to AT-250, "16. Vehicle Does Not Start From D1" .
Continue ROAD TEST.
E
SAT495G

2. CHECK SHIFT UP AND SHIFT DOWN (D3 TO D4 TO D2 ) F

1. Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.

2. Release accelerator pedal and then quickly depress it fully. G
3. Does A/T shift from D4 to D2 as soon as accelerator pedal is
depressed fully?
Read gear position and throttle opening. H
Yes or No
Yes >> GO TO 3.
No >> Go to AT-234, "9. A/T Does Not Shift: D1 → D2 or Does I
Not Kickdown: D4 → D2" . Continue ROAD TEST.

SAT404H J
3. CHECK SHIFT UP (D2 TO D3 )

Does A/T shift from D2 to D3 at the specified speed? K

Read gear position, throttle opening and vehicle speed.
Specified speed when :Refer to AT-378, "Shift
L
shifting from D2 to D3 Schedule" .
Yes or No
Yes >> GO TO 4. M
No >> Go to AT-237, "10. A/T Does Not Shift: D2 → D3" . Con-
tinue ROAD TEST.

SAT960I

Revision: November 2006 AT-89 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
4. CHECK SHIFT UP (D3 TO D4 ) AND ENGINE BRAKE

Release accelerator pedal after shifting from D2 to D3 .

Does A/T shift from D3 to D4 and does vehicle decelerate by engine brake?
Read gear position, throttle opening and vehicle speed.
Yes or No
Yes >> 1. Stop vehicle.
2. Go to AT-91, "Cruise Test — Part 3" .
No >> Go to AT-240, "11. A/T Does Not Shift: D3 → D4" . Con-
tinue ROAD TEST.

SAT405H

Revision: November 2006 AT-90 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
Cruise Test — Part 3
A
1. VEHICLE SPEED (D4 ) POSITION
1. Confirm gear selector lever is in D position. B
2. Using half-throttle, accelerate vehicle until it shifts into D4 .

AT

E
SAT812A

3. Release accelerator pedal. F

4. Move gear selector lever from D position to 3 position while driv-
ing in D4 .
5. Does A/T shift from D4 to 3? G

Read gear position and vehicle speed.

H

I
SAT813A

LCIA0071E

Yes or No M
Yes >> GO TO 2.
No >> Go to AT-251, "17. A/T Does Not Shift: D4 → 33 , When A/T Selector Lever D → 3" . Continue
ROAD TEST.

2. CHECK ENGINE BRAKE

Does vehicle decelerate by engine brake?
Yes or No
Yes >> GO TO 3.
No >> Go to AT-248, "15. Engine Speed Does Not Return To
Idle (Light Braking D4 → D3 )" . Continue ROAD TEST.

LCIA0071E

Revision: November 2006 AT-91 2006 Altima

 TROUBLE DIAGNOSIS - BASIC INSPECTION
[RE4F04B]
3. CHECK SHIFT DOWN (33 TO 22 )

1. Move selector lever from 3 to 2 position while driving in 33 .

2. Does A/T shift from 33 to 22 ?
Read gear position.
Yes or No
Yes >> GO TO 4.
No >> Go to AT-252, "18. A/T Does Not Shift: 33 → 22 , When
Selector Lever 3 → 2 Position" . Continue ROAD TEST.

LCIA0072E

4. CHECK ENGINE BRAKE

Does vehicle decelerate by engine brake?
Yes or No
Yes >> GO TO 5.
No >> Go to AT-248, "15. Engine Speed Does Not Return To
Idle (Light Braking D4 → D3 )" . Continue ROAD TEST.

LCIA0072E

5. CHECK SHIFT DOWN (22 TO 11 )

1. Move selector lever from 2 to 1 position while driving in 22 .

2. Does A/T shift from 22 to 11 position?
Read gear position.
Yes or No
Yes >> GO TO 6.
No >> Go to AT-253, "19. A/T Does Not Shift: 22 → 11 , When
Selector Lever 2 → 1 Position" . Continue ROAD TEST.

LCIA0073E

6. CHECK ENGINE BRAKE

Does vehicle decelerate by engine brake?
Yes or No
Yes >> 1. Stop vehicle.
2. Perform self-diagnosis. Refer to AT-60, "TCM SELF-
DIAGNOSTIC PROCEDURE (NO TOOLS)" .
No >> Go to AT-254, "20. Vehicle Does Not Decelerate By
Engine Brake" . Continue ROAD TEST.

LCIA0073E

Revision: November 2006 AT-92 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
TROUBLE DIAGNOSIS - GENERAL DESCRIPTION PFP:00000
A
Symptom Chart ECS0096D

Numbers are arranged in order of inspection.

Perform inspections starting with number one and work up.
Items Symptom Condition Diagnostic Item Reference Page B
1. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
2. Vehicle speed sensor·A/T (Revolution
AT
AT-122, AT-201
sensor) and vehicle speed sensor·MTR
3. Park/neutral position (PNP) switch adjust-
AT-269 D
ment
Torque converter ON vehicle 4. Engine speed signal AT-127
is not locked up.
5. A/T fluid temperature sensor AT-116
E
6. Line pressure test AT-77
7. Torque converter clutch solenoid valve AT-153
8. Control valve assembly AT-267 F
OFF vehicle 9. Torque converter AT-283

No Lock-up 1. Fluid level AT-71

Engagement/ G
2. Throttle position sensor [accelerator pedal
TCC Inoperative EC-81
position (APP) sensor] adjustment

ON vehicle 3. Line pressure test AT-77

Torque converter H
clutch piston slip. 4. Torque converter clutch solenoid valve AT-153
5. Line pressure solenoid valve AT-166
6. Control valve assembly AT-267 I
OFF vehicle 7. Torque converter AT-283
1. Throttle position sensor [accelerator pedal
EC-81 J
position (APP) sensor] adjustment
Lock-up point is 2. Vehicle speed sensor·A/T (Revolution
extremely high or ON vehicle AT-122, AT-201
sensor) and vehicle speed sensor·MTR
low.
3. Torque converter clutch solenoid valve AT-153 K
4. Control valve assembly AT-267
EC-80 , ! Hyper-link Error
1. Engine idling rpm L
!
2. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
M
3. Line pressure test AT-77
Sharp shock in ON vehicle 4. A/T fluid temperature sensor AT-116
Shift Shock shifting from N to
D position. 5. Engine speed signal AT-127
6. Line pressure solenoid valve AT-166
7. Control valve assembly AT-267
8. Accumulator N-D AT-283
OFF vehicle 9. Forward clutch AT-328

Revision: November 2006 AT-93 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
1. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
2. Line pressure test AT-77
Too sharp a ON vehicle
shock in change 3. Accumulator servo release AT-283
from D1 to D2 . 4. Control valve assembly AT-267
5. A/T fluid temperature sensor AT-116
OFF vehicle 6. Brake band AT-283
1. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
ON vehicle
Too sharp a 2. Line pressure test AT-77
shock in change
3. Control valve assembly AT-267
from D2 to D3 .
4. High clutch AT-324
OFF vehicle
5. Brake band AT-283
Shift Shock 1. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
ON vehicle
Too sharp a 2. Line pressure test AT-77
shock in change
3. Control valve assembly AT-267
from D3 to D4 .
4. Brake band AT-283
OFF vehicle
5. Overrun clutch AT-328
1. Throttle position sensor [accelerator pedal
Gear change EC-81
position (APP) sensor] adjustment
shock felt during
deceleration by ON vehicle 2. Line pressure test AT-77
releasing acceler- 3. Overrun clutch solenoid valve AT-185
ator pedal.
4. Control valve assembly AT-267
Large shock ON vehicle 1. Control valve assembly AT-267
changing from 12
to 11 in 1 posi- ON vehicle 2. Low & reverse brake AT-334
tion.
1. Throttle position sensor [accelerator pedal
EC-81
Too high a gear position (APP) sensor] adjustment
change point from 2. Vehicle speed sensor·A/T (Revolution
D1 to D2 , from ON vehicle AT-122, AT-201
sensor) and vehicle speed sensor·MTR
D2 to D3 , from
D3 to D4 . 3. Shift solenoid valve A AT-172
4. Shift solenoid valve B AT-177
1. Fluid level AT-71
Gear change ON vehicle
directly from D1 2. Accumulator servo release AT-278
to D3 occurs.
OFF vehicle 3. Brake band AT-283
Improper Shift
Timing Too high a 1. Throttle position sensor [accelerator pedal
EC-81
change point from position (APP) sensor] adjustment
D4 to D3 , from ON vehicle
D3 to D2 , from 2. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
D2 to D1 . sensor) and vehicle speed sensor·MTR

1. Throttle position sensor [accelerator pedal

Kickdown does EC-81
position (APP) sensor] adjustment
not operate when
depressing pedal 2. Vehicle speed sensor·A/T (Revolution
ON vehicle AT-122, AT-201
in D4 within kick- sensor) and vehicle speed sensor·MTR
down vehicle 3. Shift solenoid valve A AT-172
speed.
4. Shift solenoid valve B AT-177

Revision: November 2006 AT-94 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
A
Kickdown oper- 1. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
ates or engine sensor) and vehicle speed sensor·MTR
overruns when 2. Throttle position sensor [accelerator pedal
depressing pedal ON vehicle EC-81 B
position (APP) sensor] adjustment
in D4 beyond
kickdown vehicle 3. Shift solenoid valve A AT-172
Improper Shift speed limit. 4. Shift solenoid valve B AT-177
Timing AT
Gear change
1. Park/neutral position (PNP) switch adjust-
from 22 to 23 in 2 ON vehicle AT-269
ment
position.
D
Gear change 1. Park/neutral position (PNP) switch adjust-
AT-269
from 11 to 12 in 1 ON vehicle ment
position. 2. Control cable adjustment AT-270
E
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
F
ON vehicle 3. Overrun clutch solenoid valve AT-185
Failure to change
gear from D4 to 4. Shift solenoid valve A AT-172
D3 . 5. Line pressure solenoid valve AT-166 G
6. Control valve assembly AT-267
7. Low & reverse brake AT-334
OFF vehicle H
8. Overrun clutch AT-328
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal I
EC-81
position (APP) sensor] adjustment
Failure to change ON vehicle
3. Shift solenoid valve A AT-172
gear from D3 to
No Down Shift
D2 or from D4 to 4. Shift solenoid valve B AT-177 J
D2 .
5. Control valve assembly AT-267
6. High clutch AT-324
OFF vehicle K
7. Brake band AT-283
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81 L
position (APP) sensor] adjustment
ON vehicle
Failure to change 3. Shift solenoid valve A AT-172
gear from D2 to 4. Shift solenoid valve B AT-177 M
D1 or from D3 to
D1 . 5. Control valve assembly AT-267
6. Low one-way clutch AT-283
OFF vehicle 7. High clutch AT-324
8. Brake band AT-283

Revision: November 2006 AT-95 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
1. Park/neutral position (PNP) switch adjust-
AT-269
ment
2. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
Failure to change
3. Overrun clutch solenoid valve AT-185
from D3 to 22 ON vehicle
when changing 4. Shift solenoid valve B AT-177
lever into 2 posi-
5. Shift solenoid valve A AT-172
tion.
AT-252 6. Control valve assembly AT-267
7. Control cable adjustment AT-270
8. Brake band AT-283
No Down Shift OFF vehicle
9. Overrun clutch AT-328
1. Park/neutral position (PNP) switch adjust-
AT-269
ment
2. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
sensor) and vehicle speed sensor·MTR
ON vehicle
Does not change
3. Shift solenoid valve A AT-172
from 12 to 11 in 1
position. 4. Control valve assembly AT-267
5. Overrun clutch solenoid valve AT-185
6. Overrun clutch AT-328
OFF vehicle
7. Low & reverse brake AT-334
1. Park/neutral position (PNP) switch adjust-
AT-269
ment
2. Control cable adjustment AT-270
Failure to change ON vehicle 3. Shift solenoid valve A AT-172
gear from D1 to
D2 . 4. Control valve assembly AT-267
5. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
sensor) and vehicle speed sensor·MTR
OFF vehicle 6. Brake band AT-283
No Up Shift 1. Park/neutral position (PNP) switch adjust-
AT-269
ment
2. Control cable adjustment AT-270
ON vehicle 3. Shift solenoid valve B AT-177
Failure to change
gear from D2 to 4. Control valve assembly AT-267
D3 .
5. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
sensor) and vehicle speed sensor·MTR
6. High clutch AT-324
OFF vehicle
7. Brake band AT-283

Revision: November 2006 AT-96 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
A
1. Park/neutral position (PNP) switch adjust-
AT-269
ment
2. Control cable adjustment AT-270
Failure to change
B
ON vehicle 3. Shift solenoid valve A AT-172
gear from D3 to
D4 . 4. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
sensor) and vehicle speed sensor·MTR
AT
5. A/T fluid temperature sensor AT-116
OFF vehicle 6. Brake band AT-283
1. Throttle position sensor [accelerator pedal D
EC-81
position (APP) sensor] adjustment

No Up Shift 2. Park/neutral position (PNP) switch adjust-

AT-269
ment E
3. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
A/T does not shift sensor) and vehicle speed sensor·MTR
ON vehicle
to D4 when driv- 4. Shift solenoid valve A AT-172 F
ing with over-
drive control 5. Overrun clutch solenoid valve AT-185
switch ON. 6. Control valve assembly AT-267
G
7. A/T fluid temperature sensor AT-116
8. Line pressure solenoid valve AT-166
9. Brake band AT-283 H
OFF vehicle
10. Overrun clutch AT-328
1. Control cable adjustment AT-270
2. Line pressure test AT-77 I
Vehicle will not ON vehicle
3. Line pressure solenoid valve AT-166
run in R position
(but runs in D, 2 4. Control valve assembly AT-267
J
and 1 positions).
5. Reverse clutch AT-321
Clutch slips.
Very poor accel- 6. High clutch AT-324
Slips/Will Not eration.
Engage OFF vehicle 7. Forward clutch AT-328 K
8. Overrun clutch AT-328
9. Low & reverse brake AT-334
L
Vehicle will not ON vehicle 1. Control cable adjustment AT-270
run in D and 2
positions (but
runs in 1 and R OFF vehicle 2. Low one-way clutch AT-283 M
positions).

Revision: November 2006 AT-97 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
1. Fluid level AT-71
2. Line pressure test AT-77

Vehicle will not ON vehicle 3. Line pressure solenoid valve AT-166

run in D, 1, 2 4. Control valve assembly AT-267
positions (but
runs in R posi- 5. Accumulator N-D AT-283
tion). Clutch slips. 6. Reverse clutch AT-321
Very poor accel-
eration. 7. High clutch AT-324
OFF vehicle 8. Forward clutch AT-328
9. Forward one-way clutch AT-283
10. Low one-way clutch AT-283
1. Fluid level AT-71
2. Control cable adjustment AT-270
3. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
ON vehicle
4. Line pressure test AT-77
5. Line pressure solenoid valve AT-166
Clutches or
brakes slip some- 6. Control valve assembly AT-267
what in starting. 7. Accumulator N-D AT-283
Slips/Will Not
Engage 8. Forward clutch AT-328
9. Reverse clutch AT-321
OFF vehicle 10. Low & reverse brake AT-334
11. Oil pump AT-302
12. Torque converter AT-283
1. Fluid level AT-71
ON vehicle 2. Line pressure test AT-77

No creep at all. 3. Control valve assembly AT-267

AT-225, AT-228 4. Forward clutch AT-328
OFF vehicle 5. Oil pump AT-302
6. Torque converter AT-283
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
Almost no shock position (APP) sensor] adjustment
or clutches slip- ON vehicle
3. Line pressure test AT-77
ping in change
from D1 to D2 . 4. Accumulator servo release AT-278
5. Control valve assembly AT-267
OFF vehicle 6. Brake band AT-283

Revision: November 2006 AT-98 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
A
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
Almost no shock ON vehicle position (APP) sensor] adjustment
or slipping in
B
3. Line pressure test AT-77
change from D2
to D3 . 4. Control valve assembly AT-267
5. High clutch AT-324 AT
OFF vehicle
6. Forward clutch AT-328
1. Fluid level AT-71
D
2. Throttle position sensor [accelerator pedal
EC-81
Almost no shock ON vehicle position (APP) sensor] adjustment
or slipping in 3. Line pressure test AT-77
change from D3 E
to D4 . 4. Control valve assembly AT-267
5. High clutch AT-324
OFF vehicle
6. Brake band AT-283 F
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
Races extremely
position (APP) sensor] adjustment G
ON vehicle
fast or slips in 3. Line pressure test AT-77
changing from D4
4. Line pressure solenoid valve AT-166
to D3 when H
depressing pedal. 5. Control valve assembly AT-267
Slips/Will Not 6. High clutch AT-324
Engage OFF vehicle
7. Forward clutch AT-328 I
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment J
Races extremely 3. Line pressure test AT-77
ON vehicle
fast or slips in
changing from D4 4. Line pressure solenoid valve AT-166
to D2 when K
5. Shift solenoid valve A AT-172
depressing pedal.
6. Control valve assembly AT-267
7. Brake band AT-283 L
OFF vehicle
8. Forward clutch AT-328
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
M
EC-81
position (APP) sensor] adjustment

ON vehicle 3. Line pressure test AT-77

Races extremely
fast or slips in 4. Line pressure solenoid valve AT-166
changing from D3
5. Control valve assembly AT-267
to D2 when
depressing pedal. 6. A/T fluid temperature sensor AT-116
7. Brake band AT-283
OFF vehicle 8. Forward clutch AT-328
9. High clutch AT-324

Revision: November 2006 AT-99 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
1. Fluid level AT-71
2. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
Races extremely ON vehicle
3. Line pressure test AT-77
fast or slips in
changing from D4 4. Line pressure solenoid valve AT-166
or D3 to D1 when 5. Control valve assembly AT-267
depressing pedal.
6. Forward clutch AT-328
OFF vehicle 7. Forward one-way clutch AT-283
8. Low one-way clutch AT-283
Slips/Will Not 1. Fluid level AT-71
Engage
2. Control cable adjustment AT-270
ON vehicle
3. Line pressure test AT-77
4. Line pressure solenoid valve AT-166
Vehicle will not 5. Oil pump AT-302
run in any posi-
tion. 6. High clutch AT-324
7. Brake band AT-283
OFF vehicle
8. Low & reverse brake AT-334
9. Torque converter AT-283
10. Parking components AT-278
1. Ignition switch and starter SC-11
Engine cannot be
started in P and N 2. Control cable adjustment AT-270
ON vehicle
positions.
3. Park/neutral position (PNP) switch adjust-
AT-219 AT-269
ment

Engine starts in 1. Control cable adjustment AT-270

positions other ON vehicle 2. Park/neutral position (PNP) switch adjust-
than P and N. AT-269
ment
1. Fluid level AT-71
2. Line pressure test AT-77
3. Throttle position sensor [accelerator pedal
EC-81
ON vehicle position (APP) sensor] adjustment
NOT USED Transaxle noise
in P and N posi- 4. Vehicle speed sensor·A/T (Revolution
AT-122, AT-201
tions. sensor) and vehicle speed sensor·MTR
5. Engine speed signal AT-127
6. Oil pump AT-302
OFF vehicle
7. Torque converter AT-283
Vehicle moves ON vehicle 1. Control cable adjustment AT-270
when changing
into P position or
parking gear does
not disengage OFF vehicle 2. Parking components AT-278
when shifted out
of P position.

Revision: November 2006 AT-100 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
A
Vehicle runs in N ON vehicle 1. Control cable adjustment AT-270
position.
2. Forward clutch AT-328
AT-221
OFF vehicle 3. Reverse clutch AT-321 B
4. Overrun clutch AT-328
1. Fluid level AT-71
2. Control cable adjustment AT-270 AT
ON vehicle 3. Line pressure test AT-77
4. Line pressure solenoid valve AT-166
Vehicle braked D
when shifting into 5. Control valve assembly AT-267
R position.
6. High clutch AT-324
7. Brake band AT-283 E
OFF vehicle
8. Forward clutch AT-328
9. Overrun clutch AT-328
F
Excessive creep. ON vehicle 1. Engine idling rpm EC-80

NOT USED 1. Engine idling rpm EC-80

Engine stops
when shifting ON vehicle 2. Torque converter clutch solenoid valve AT-153 G
lever into R, D, 2 3. Control valve assembly AT-267
and 1.
OFF vehicle 4. Torque converter AT-283
H
ON vehicle 1. Fluid level AT-71
2. Reverse clutch AT-321
Vehicle braked by
gear change from 3. Low & reverse brake AT-334 I
D1 to D2 . OFF vehicle
4. High clutch AT-324
5. Low one-way clutch AT-283
Vehicle braked by ON vehicle 1. Fluid level AT-71
J
gear change from
D2 to D3 . OFF vehicle 2. Brake band AT-283

ON vehicle 1. Fluid level AT-71 K

Vehicle braked by 2. Overrun clutch AT-328
gear change from
D3 to D4 . OFF vehicle 3. Forward one-way clutch AT-283
L
4. Reverse clutch AT-321

Revision: November 2006 AT-101 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
1. Fluid level AT-71
2. Park/neutral position (PNP) switch adjust-
AT-269
ment
ON vehicle
3. Shift solenoid valve A AT-172
4. Shift solenoid valve B AT-177
Maximum speed
5. Control valve assembly AT-267
not attained.
Acceleration 6. Reverse clutch AT-321
poor.
7. High clutch AT-324
8. Brake band AT-283
OFF vehicle
9. Low & reverse brake AT-334
10. Oil pump AT-302
11. Torque converter AT-283
Transaxle noise ON vehicle 1. Fluid level AT-71
in D, 2, 1 and R
positions. OFF vehicle 2. Torque converter AT-283

1. Park/neutral position (PNP) switch adjust-

AT-269
ment
2. Control cable adjustment AT-270
3. Throttle position sensor [accelerator pedal
EC-81
position (APP) sensor] adjustment
Engine brake ON vehicle
4. Vehicle speed sensor·A/T (Revolution
does not operate AT-122, AT-201
sensor) and vehicle speed sensor·MTR
NOT USED in “1” position.
5. Shift solenoid valve A AT-172
6. Control valve assembly AT-267
7. Overrun clutch solenoid valve AT-185
8. Overrun clutch AT-328
OFF vehicle
9. Low & reverse brake AT-334
1. Fluid level AT-71
2. Engine idling rpm EC-80
3. Throttle position sensor [accelerator pedal
EC-81
ON vehicle position (APP) sensor] adjustment
4. Line pressure test AT-77
5. Line pressure solenoid valve AT-166
6. Control valve assembly AT-267
Transaxle over- 7. Oil pump AT-302
heats.
8. Reverse clutch AT-321
9. High clutch AT-324
10. Brake band AT-283
OFF vehicle
11. Forward clutch AT-328
12. Overrun clutch AT-328
13. Low & reverse brake AT-334
14. Torque converter AT-283

Revision: November 2006 AT-102 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Items Symptom Condition Diagnostic Item Reference Page
A
ON vehicle 1. Fluid level AT-71
2. Reverse clutch AT-321
ATF shoots out
during operation. 3. High clutch AT-324 B
White smoke
4. Brake band AT-283
emitted from OFF vehicle
exhaust pipe dur- 5. Forward clutch AT-328
ing operation.
6. Overrun clutch AT-328 AT
7. Low & reverse brake AT-334
ON vehicle 1. Fluid level AT-71
D
2. Torque converter AT-283
3. Oil pump AT-302
NOT USED 4. Reverse clutch AT-321 E
Offensive smell at
fluid charging 5. High clutch AT-324
pipe. OFF vehicle
6. Brake band AT-283
F
7. Forward clutch AT-328
8. Overrun clutch AT-328
9. Low & reverse brake AT-334 G
1. Fluid level AT-71
2. Torque converter clutch solenoid valve AT-153
Engine is stopped H
at R, D, 2 and 1 ON vehicle 3. Shift solenoid valve B AT-177
positions.
4. Shift solenoid valve A AT-172
5. Control valve assembly AT-267 I
TCM Terminals and Reference Value ECS0096E

PREPARATION
J

AAT475A
M
● Measure voltage between each terminal and terminal 25 or 48 by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT

WCIA0055E

Revision: November 2006 AT-103 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
TCM INSPECTION TABLE
(Data are reference values.)
Judgement
Termi-
Wire color Item Condition standard
nal No.
(Approx.)
When releasing accelerator pedal after warming
1.5 - 3.0V
Line pressure up engine.
1 G/R
solenoid valve When depressing accelerator pedal fully after
0V
warming up engine.

Line pressure When releasing accelerator pedal after warming

4 - 14V
solenoid valve up engine.
2 W/B
(with dropping When depressing accelerator pedal fully after
resistor) 0V
warming up engine.
Torque converter When A/T performs lock-up. 8 - 15V
3 G/B clutch solenoid
valve When A/T does not perform lock-up. 0V

5* L CAN-H — — —
6* P CAN-L — — —
Battery volt-
With ignition switch ON.
age

10 R/Y Power source or

With ignition switch OFF. 0V

When shift solenoid valve A operates. Battery volt-

Shift solenoid (When driving in D1 or D4 .) age
11 R/Y
valve A When shift solenoid valve A does not operate.
0V
(When driving in D2 or D3 .)
When shift solenoid valve B operates. Battery volt-
Shift solenoid (When driving in D1 or D2 .) age
12 LG/B
valve B When shift solenoid valve B does not operate.
0V
(When driving in D3 or D4 .)
19 R/Y Power source Same as No. 10
Battery volt-
When overrun clutch solenoid valve operates.
age
Overrun clutch
20 BR/Y
solenoid valve When overrun clutch solenoid valve does not
0V
operate.

25 B Ground — — —
Battery volt-
PNP switch 1 When setting selector lever to 1 position.
26 PU/W age
position
When setting selector lever to other positions. 0V
Battery volt-
PNP switch 2 When setting selector lever to 2 position.
27 P/B age
position
When setting selector lever to other positions. 0V
Battery volt-
With ignition switch OFF.
age

Power source
28 Y/R or
(Memory back-up) Battery volt-
With ignition switch ON.
age

Revision: November 2006 AT-104 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
Judgement
Termi-
Wire color Item Condition standard A
nal No.
(Approx.)
When moving at 20 km/h (12 MPH), use the
CONSULT-II pulse frequency measuring func- B
tion.*1
CAUTION: 450 Hz
Connect the diagnosis data link cable to the
29 W Revolution sensor AT
vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this
item.

When vehicle is parked.

Under 1.3V or D
over 4.5V
Data link connec-
30** BR/Y — —
tor (RX) E
Data link connec-
31** LG — —
tor (TX)
Battery volt- F
PNP switch D When setting selector lever to D position.
34 G age
position
When setting selector lever to other positions. 0V

When setting selector lever to R position.

Battery volt- G
PNP switch R age
35 G/W
position
When setting selector lever to other positions. 0V
Battery volt- H
PNP switch P or N When setting selector lever to P or N position.
36 R/B age
position
When setting selector lever to other positions. 0V
When moving at 20 km/h (12 MPH), use the I
CONSULT-II pulse frequency measuring func-
tion.*1
CAUTION: 240 Hz J
Turbine revolution
38 G Connect the diagnosis data link cable to the
sensor
vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this
item. K
Under 1.3V or
When vehicle is parked.
over 4.5V
L

Engine speed sig- Refer to EC-109, "ECM INSPECTION TABLE" .

39 W/G
nal M

Voltage varies
between less
Vehicle speed When moving vehicle at 2 to 3 km/h (1 to 2
40 PU/R than 1V and
sensor MPH) for 1 m (3 ft) or more.
more than
4.5V

42 B Sensor ground — — —
When ATF temperature is 20°C (68°F). 1.5V
A/T fluid tempera-
47 G
ture sensor When ATF temperature is 80°C (176°F). 0.5V

48 B Ground — — —
*: These terminals are connected to the ECM.
**: These terminals are connected to the Data link connector.

Revision: November 2006 AT-105 2006 Altima

 TROUBLE DIAGNOSIS - GENERAL DESCRIPTION
[RE4F04B]
CAN Communication ECS0096F

For details, refer to LAN-20, "CAN COMMUNICATION" .

Revision: November 2006 AT-106 2006 Altima

 TROUBLE DIAGNOSIS FOR POWER SUPPLY
[RE4F04B]
TROUBLE DIAGNOSIS FOR POWER SUPPLY PFP:00000
A
Wiring Diagram — AT — MAIN ECS0096G

AT

BCWA0137E

Revision: November 2006 AT-107 2006 Altima

 TROUBLE DIAGNOSIS FOR POWER SUPPLY
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
IGNITION ON BATTERY VOLTAGE
10 R/Y POWER SOURCE
IGNITION OFF 0V
IGNITION ON BATTERY VOLTAGE
19 R/Y POWER SOURCE
IGNITION OFF 0V
25 B GROUND — —

POWER SOURCE IGNITION ON BATTERY VOLTAGE

28 Y/R
(MEMORY BACKUP) IGNITION OFF BATTERY VOLTAGE
48 B GROUND — —

Diagnostic Procedure ECS0096H

1. CHECK TCM POWER SOURCE STEP 1

1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
Voltage : Battery voltage
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.

LCIA0094E

2. CHECK TCM POWER SOURCE STEP 2

1. Turn ignition switch to OFF position.
2. Check voltage between TCM terminal 28 and ground.
Voltage : Battery voltage
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

WCIA0095E

3. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness for short or open between ignition switch and TCM terminals 10, 19 and 28
● Fuse
● Ignition switch
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-108 2006 Altima

 TROUBLE DIAGNOSIS FOR POWER SUPPLY
[RE4F04B]
4. CHECK TCM GROUND CIRCUIT A
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between TCM terminals 25, 48 and ground. Refer to AT-107, "Wiring Diagram — AT — B
MAIN" .
Continuity should exist. AT
OK or NG
OK >> INSPECTION END
NG >> Repair open circuit or short to ground or short to power in harness or connectors. D

Revision: November 2006 AT-109 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
DTC P0705 PARK/NEUTRAL POSITION SWITCH PFP:32006

Description ECS0096I

● The park/neutral position (PNP) switch includes a transaxle

range switch.
● The transaxle range switch detects the selector lever position
and sends a signal to the TCM.

WCIA0066E

On Board Diagnosis Logic ECS0096J

Diagnostic trouble code PNP SW/CIRC with CONSULT-II or P0705 without CONSULT-II is detected when
TCM does not receive the correct voltage signal from the switch based on the gear position.
Possible Cause ECS0096K

Check the following items.

● Harness or connectors
(The park/neutral position (PNP) switch circuit is open or shorted.)
● Park/neutral position (PNP) switch
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0096L

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON.

BCIA0030E

2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.3V
Selector lever: 3 or D position

BCIA0031E

Revision: November 2006 AT-110 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
WITH GST
Follow the procedure “With CONSULT-II”. A

AT

Revision: November 2006 AT-111 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
Wiring Diagram — AT — PNP/SW ECS0096M

WCWA0221E

Revision: November 2006 AT-112 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN SETTING SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN 1 POSITION
26 PU/W
1 POSITION WHEN SETTING SELECTOR B
0V
LEVER IN OTHER POSITIONS
WHEN SETTING SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN 2 POSITION AT
27 P/B
2 POSITION WHEN SETTING SELECTOR
0V
LEVER IN OTHER POSITIONS
WHEN SETTING SELECTOR D
BATTERY VOLTAGE
PNP SWITCH LEVER IN D POSITION
34 G
D POSITION WHEN SETTING SELECTOR
0V
LEVER IN OTHER POSITIONS
E
WHEN SETTING SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN R POSITION
35 G/W
R POSITION WHEN SETTING SELECTOR
0V F
LEVER IN OTHER POSITIONS
WHEN SETTING SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN P OR N POSITION
36 R/B G
P OR N POSITION WHEN SETTING SELECTOR
0V
LEVER IN OTHER POSITIONS

Diagnostic Procedure ECS0096N H

1. INSPECTION START I
Do you have CONSULT-II?
Yes or No
J
Yes >> GO TO 2.
No >> GO TO 6.

2. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT (WITH CONSULT-II) K

With CONSULT-II
1. Turn ignition switch to ON position. L
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II. M
3. Read out P, R, N, D, 2 and 1 position switches moving selector
lever to each position.
Check that the signal of the selector lever position is indicated
properly.
OK or NG
OK >> GO TO 7. SAT701J
NG >> GO TO 3.

Revision: November 2006 AT-113 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
3. DETECT MALFUNCTIONING ITEM
Check the following item:
● Park/neutral position (PNP) switch
Check continuity between park/neutral position (PNP) switch
F29 terminals 1 and 2 and between terminals 3 and 4, 5, 6, 7, 8
and 9 while moving manual shaft through each position.

Lever position Terminal No.

P 3-7 1-2
R 3-8
N 3-9 1-2
D 3-6
WCIA0459E
2 3-5
1 3-4

OK or NG
OK >> GO TO 5.
NG >> GO TO 4.

4. CHECK MANUAL CONTROL CABLE ADJUSTMENT

Check PNP switch again with manual control cable disconnected from manual shaft of A/T assembly. Refer to
test group 1.
OK or NG
OK >> Adjust manual control cable. Refer to AT-270, "Control Cable Adjustment" .
NG >> Repair or replace PNP switch.

5. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness for short or open between ignition switch and park/neutral position (PNP) switch (Main harness)
● Harness for short or open between park/neutral position (PNP) switch and TCM (Main harness)
● Fuse
● Ignition switch
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-114 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE4F04B]
6. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT (WITHOUT CONSULT-II) A
Without CONSULT-II
1. Turn ignition switch to ON position. (Do not start engine.)
B
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and ground while moving selector lever through
each position.
Terminal No. AT
Lever Position
36 35 34 27 26
P, N B 0 0 0 0
D
R 0 B 0 0 0
D 0 0 B 0 0
2 0 0 0 B 0 E
1 0 0 0 0 B

B= Battery voltage F
0= 0V

I
WCIA0461E

OK or NG
J
OK >> GO TO 7.
NG >> GO TO 5.

7. CHECK DTC K

Perform AT-110, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .

OK or NG L
OK >> INSPECTION END
NG >> GO TO 8.
M
8. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-115 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT PFP:31940

Description ECS0096O

The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.

SAT283HB

SAT021J

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.
Monitor item Condition Specification (Approximately)
Cold [20°C (68°F)] 1.5V 2.5 kΩ
A/T fluid temperature sensor ↓ ↓ ↓
Hot [80°C (176°F)] 0.5V 0.3 kΩ

On Board Diagnosis Logic ECS0096P

Diagnostic trouble code ATF TEMP SEN/CIRC with CONSULT-II or P0710 without CONSULT-II is detected
when TCM receives an excessively low or high voltage from the sensor.
Possible Cause ECS0096Q

Check the following items.

● Harness or connectors
(The sensor circuit is open or shorted.)
● A/T fluid temperature sensor
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0096R

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-116 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for A
“A/T” with CONSULT-II.

AT

BCIA0030E
D

BCIA0031E
H
2. Select "ECM INPUT SIGNALS" touch "START".
3. Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to
maintain continuously.)
I
ENG SPEED: 450 rpm or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
THRTL POSI: More than 1.2V
Selector lever: D position J
WITH GST
Follow the procedure “With CONSULT-II”.
K

Revision: November 2006 AT-117 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
Wiring Diagram — AT — FTS ECS0096S

BCWA0139E

Revision: November 2006 AT-118 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
42 B SENSOR GROUND — —
IGNITION ON AND ATF TEMPER-
1.5V
A/T FLUID TEMPERATURE ATURE IS 20°C (68°F) B
47 G
SENSOR IGNITION ON AND ATF TEMPER-
0.5V
ATURE IS 80°C (176°F)
AT

Revision: November 2006 AT-119 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
Diagnostic Procedure ECS0096T

1. INSPECTION START
Do you have CONSULT-II?
Yes or No
Yes >> GO TO 2.
No >> GO TO 6.

2. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)

With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
Voltage :Cold [20°C (68°F)] → Hot [80°C (176°F)]
:Approximately 1.5V → 0.5V
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.

LCIA0090E

3. CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord F30 terminals 6 and 7
(component side) when A/T is cold.
Temperature Resistance (Approx.)
Cold [20°C (68°F)] 2.5kΩ
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
WCIA0097E

4. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness for short to ground or short to power or open between TCM, ECM and terminal cord assembly
(Main harness)
● Ground circuit for ECM
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-120 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE4F04B]
5. DETECT MALFUNCTIONING ITEM A
1. Remove oil pan.
2. Check the following items:
– A/T fluid temperature sensor B
Check resistance between two terminals while changing temper-
ature as shown in figure.
AT
Temperature Resistance (Approx.)
20 (68) 25kΩ
80 (176) 0.3kΩ D
– Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 7. E
NG >> Repair or replace damaged parts. SAT298F

6. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II) F

Without CONSULT-II
1. Start engine. G
2. Check voltage between TCM terminal 47 and ground while
warming up A/T.
H
Temperature Voltage (Approx.)
Cold [20°C (68°F)] → Hot [80°C (176°F)] 1.5V → 0.5V

OK or NG I
OK >> GO TO 7.
NG >> GO TO 3.
J
WCIA0462E

7. CHECK DTC K
Perform AT-116, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG L
OK >> INSPECTION END
NG >> GO TO 8.

8. CHECK TCM INSPECTION M

1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-121 2006 Altima

 DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
[RE4F04B]
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR) PFP:32702

Description ECS0096U

The revolution sensor detects the revolution of the idler gear parking
pawl lock gear and emits a pulse signal. The pulse signal is sent to
the TCM which converts it into vehicle speed.

LCIA0070E

On Board Diagnosis Logic ECS0096V

Diagnostic trouble code VEH SPD SEN/CIR AT with CONSULT-II or P0720 without CONSULT-II is detected
when TCM does not receive the proper voltage signal from the sensor.
Possible Cause ECS0096W

Check the following items.

● Harness or connectors
(The sensor circuit is open or shorted.)
● Revolution sensor
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0096X

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.

BCIA0030E

BCIA0031E

Revision: November 2006 AT-122 2006 Altima

 DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
[RE4F04B]
2. Drive vehicle and check for an increase of “VHCL/S SE·MTR” value.
If the check result is NG, go to AT-125, "Diagnostic Procedure" . A
If the check result is OK, go to following step.
3. Select “DATA MONITOR” mode for A/T” with CONSULT-II.
B

AT

BCIA0030E

H
BCIA0031E

4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more I
THRTL POS SEN: More than 1.2V
Selector lever: D position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving J
conditions required for this test.
If the check result is NG, go to AT-125, "Diagnostic Procedure" .
If the check result is OK, go to following step.
K
5. Maintain the following conditions for at least 5 consecutive seconds.
CMPS·RPM (REF): 3,500 rpm or more
THRTL POS SEN: More than 1.2V
Selector lever: D position L
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITH GST M
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-123 2006 Altima

 DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
[RE4F04B]
Wiring Diagram — AT — VSSA/T ECS0096Y

BCWA0140E

Revision: November 2006 AT-124 2006 Altima

 DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
[RE4F04B]
TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
TERMINAL WIRE COLOR ITEM CONDITION DATA (DC) A
VEHICLE MOVING AT 20 KM/H
(12 MPH).
USE THE CONSULT-II PULSE
B
FREQUENCY MEASURING
FUNCTION. A CIRCUIT TESTER
CANNOT BE USED TO TEST 450 HZ
29 W REVOLUTION SENSOR THIS ITEM. AT
CAUTION: CONNECT THE DIAG-
NOSIS DATA LINK CABLE TO
THE VEHICLE DIAGNOSIS CON-
NECTOR. D
LESS THAN 1.3V OR
VEHICLE NOT MOVING.
GREATER THAN 4.5V
42 B SENSOR GROUND — — E

Diagnostic Procedure ECS0096Z

F
1. CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II G
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
H
3. Read out the value of “VHCL/S SE·A/T” while driving.
Check the value changes according to driving speed.
OK or NG
I
OK >> GO TO 3.
NG >> GO TO 2.
J

K
LCIA0090E

2. CHECK REVOLUTION SENSOR (WITH CONSULT-II) L

With CONSULT-II
1. Start engine. M
● Harness for short or open between TCM, ECM and revolution
sensor (Main harness)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

LCIA0091E

3. CHECK DTC
Perform AT-122, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
Revision: November 2006 AT-125 2006 Altima
 DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
[RE4F04B]
4. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-126 2006 Altima

 DTC P0725 ENGINE SPEED SIGNAL
[RE4F04B]
DTC P0725 ENGINE SPEED SIGNAL PFP:24825
A
Description ECS00970

The engine speed signal is sent from the ECM to the TCM.
B
On Board Diagnosis Logic ECS00971

Diagnostic trouble code ENGINE SPEED SIG with CONSULT-II or P0725 without CONSULT-II is detected
when TCM does not receive the proper voltage signal from ECM. AT
Possible Cause ECS00972

Check harness or connectors. (The sensor circuit is open or shorted.)

D
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS00973

CAUTION:
Always drive vehicle at a safe speed. E
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test. F
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for G
“ENGINE” with CONSULT-II.

BCIA0030E
J

BCIA0031E

2. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-127 2006 Altima

 DTC P0725 ENGINE SPEED SIGNAL
[RE4F04B]
Wiring Diagram — AT — ENGSS ECS00974

BCWA0141E

Revision: November 2006 AT-128 2006 Altima

 DTC P0725 ENGINE SPEED SIGNAL
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA A

39 W/G ENGINE SPEED SIGNAL EC-109, "ECM INSPECTION TABLE"

Diagnostic Procedure ECS00975

B

1. CHECK DTC WITH ECM AT

● Check P code.
Turn ignition switch ON and select “SELF-DIAGNOSTIC RESULTS” mode for “ENGINE” with CONSULT-
II. D
Refer to EC-66, "Malfunction Indicator Lamp (MIL)" .
OK or NG
OK (with CONSULT-II)>> GO TO 2. E
OK (without CONSULT-II)>> GO TO 4.
NG >> Check ignition signal circuit for engine control. Refer to EC-585, "IGNITION SIGNAL" .
F
2. CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II G
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “ENGINE SPEED”. H
Check engine speed changes according to throttle position.
OK or NG
OK >> GO TO 6. I
NG >> GO TO 3.

K
SAT645J

3. DETECT MALFUNCTIONING ITEM L

Check the following items:
● Harness for short or open between TCM and ECM
M
● Resistor and ignition coil
Refer to EC-585, "IGNITION SIGNAL" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-129 2006 Altima

 DTC P0725 ENGINE SPEED SIGNAL
[RE4F04B]
4. CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
Voltage :0.6 (Idle speed) - 2.2V (3,000 rpm)
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

LCIA0099E

5. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness for short or open between TCM and ECM
● Resistor and ignition coil
Refer to EC-585, "IGNITION SIGNAL" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK DTC
Perform AT-127, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.

7. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-130 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE4F04B]
DTC P0731 A/T 1ST GEAR FUNCTION PFP:31940
A
Description ECS00976

● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.

● This malfunction will not be detected while the A/T check (position) indicator lamp is indicating another B
self-diagnosis malfunction.
● This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such AT
as control valve sticking, improper solenoid valve operation, etc.
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
D

Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

On Board Diagnosis Logic ECS00977 E

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B F
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes G
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open. H
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1 , 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck open: 2* , 2, 3 and 3 positions I
In case of gear position with shift solenoid valve B stuck open: 4* , 3, 3 and 4 positions to each gear position
above
*: P0731 is detected.
Diagnostic trouble code A/T 1ST GR FNCTN with CONSULT-II or P0731 without CONSULT-II is detected J
when A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
Possible Cause ECS00978
K
Check the following items.
● Shift solenoid valve A
● Shift solenoid valve B L
● Each clutch
● Hydraulic control circuit
M
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS00979

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-131 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE4F04B]
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below.
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
3. Select “1ST GR FNCTN P0731” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
BCIA0030E

4. Accelerate vehicle to 20 to 25 km/h (12 to 16 MPH) under the

following condition and release the accelerator pedal com-
pletely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
Selector lever: D position
– Check that “GEAR” shows “2” after releasing pedal.
5. Depress accelerator pedal to WOT (more than 7.0/8 of “THROT-
TLE POSI”) quickly from a speed of 20 to 25 km/h (12 to 16
MPH) until “TESTING” changes to “STOP VEHICLE” or “COM-
PLETED”. (It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT- BCIA0031E

134, "Diagnostic Procedure" .

If “STOP VEHICLE” appears on CONSULT-II screen, go to the following step.
– Check that “GEAR” shows “1” when depressing accelerator pedal to WOT.
– If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS” for
“ENGINE”. In case a 1st trip DTC other than P0731 is shown, refer to applicable “TROUBLE DIAG-
NOSIS FOR DTC”.
6. Stop vehicle.
7. Follow the instruction displayed. (Check for normal shifting refer-
ring to the table below.)
Gear on actual transaxle shift pattern when
Vehicle condition
screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1→2→3→4
2→2→3→3
Malfunction for P0731 exists.
4→3→3→4
8. Make sure that “OK” is displayed. (If “NG” is displayed, refer to SAT021J

“DIAGNOSTIC PROCEDURE”.)
Refer to AT-134, "Diagnostic Procedure" .
Refer to AT-378, "Shift Schedule" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-132 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE4F04B]
Wiring Diagram — AT — 1STSIG ECS0097A

AT

LCWA0010E

Revision: November 2006 AT-133 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
WHEN SHIFT SOLENOID VALVE
A IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D4 )
11 R/Y SHIFT SOLENOID VALVE A
WHEN SHIFT SOLENOID VALVE
A IS NOT OPERATING (DRIVING 0V
IN D2 OR D3 )
WHEN SHIFT SOLENOID VALVE
B IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D2 )
12 LG/B SHIFT SOLENOID VALVE B
WHEN SHIFT SOLENOID VALVE
B IS NOT OPERATING (DRIVING 0V
IN D3 OR D4 )

Diagnostic Procedure ECS0097B

1. CHECK VALVE RESISTANCE

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
– Shift solenoid valve B
2. Check resistance between two terminals.
Resistance
Solenoid valve Terminal No.
(Approx.)
Shift solenoid valve A 2 20 - 30Ω
Ground
Shift solenoid valve B 1 5 - 20Ω

OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
WCIA0089E

2. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
– Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.

WCIA0090E

Revision: November 2006 AT-134 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE4F04B]
3. CHECK CONTROL VALVE A
1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check to ensure that: B
– Valve, sleeve and plug slide along valve bore under their own
weight.
– Valve, sleeve and plug are free from burrs, dents and scratches. AT
– Control valve springs are free from damage, deformation and
fatigue.
– Hydraulic line is free from obstacles. D
OK or NG SAT367H

OK >> GO TO 4.
NG >> Repair control valve assembly. E

4. CHECK DTC
F
Perform AT-131, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END G
NG >> Check control valve again. Repair or replace control valve assembly.

Revision: November 2006 AT-135 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE4F04B]
DTC P0732 A/T 2ND GEAR FUNCTION PFP:31940

Description ECS0097C

● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.

● This malfunction will not be detected while the A/T check (position) indicator lamp is indicating another
self-diagnosis malfunction.
● This malfunction is detected when the A/T does not shift into second gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

On Board Diagnosis Logic ECS0097D

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck open.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2 , 3 and 4 positions
In case of gear position with shift solenoid valve B stuck open: 4, 3* , 3 and 4 positions to each gear position
above
*: P0732 is detected.
Diagnostic trouble code A/T 2ND GR FNCTN with CONSULT-II or P0732 without CONSULT-II is detected
when A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.
Possible Cause ECS0097E

Check the following items.

● Shift solenoid valve B
● Each clutch
● Hydraulic control circuit
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0097F

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-136 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE4F04B]
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with A
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below. B
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
AT
the fluid).
3. Select “2ND GR FNCTN P0732” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
BCIA0030E
D

4. Accelerate vehicle to 45 to 50 km/h (28 to 31 MPH) under the

following condition and release the accelerator pedal com- E
pletely.
THROTTLE POSI: Less than 1.0/8
Selector lever: D position F
– Check that “GEAR” shows “3” or “4” after releasing pedal.
5. Depress accelerator pedal to WOT (more than 7.0/8 of “THROT-
TLE POSI”) quickly from a speed of 45 to 50 km/h (28 to 31 G
MPH) until “TESTING” changes to “STOP VEHICLE” or “COM-
PLETE”. (It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT- BCIA0031E

139, "Diagnostic Procedure" . H

If “STOP VEHICLE” appears on CONSULT-II screen, go to fol-
lowing step.
– Check that “GEAR” shows “2” when depressing accelera- I
tor pedal to WOT.
– If “TESTING” does not appear on CONSULT-II for a long
time, select “SELF-DIAG RESULTS” for “ENGINE”. In case a J
1st trip DTC other than P0732 is shown, refer to applicable
“TROUBLE DIAGNOSIS FOR DTC”.
6. Stop vehicle. K
7. Follow the instruction displayed. (Check for normal shifting refer- SAT021J
ring to the table below.)
Gear on actual transaxle shift pattern when L
Vehicle condition
screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1→2→3→4
M
Malfunction for P0732 exists. 4→3→3→4

8. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-139, "Diagnostic Procedure" .
Refer to AT-378, "Shift Schedule" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-137 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE4F04B]
Wiring Diagram — AT — 2NDSIG ECS0097G

LCWA0011E

Revision: November 2006 AT-138 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN SHIFT SOLENOID VALVE
B IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D2 )
12 LG/B SHIFT SOLENOID VALVE B B
WHEN SHIFT SOLENOID VALVE
B IS NOT OPERATING (DRIVING 0V
IN D3 OR D4 )
AT
Diagnostic Procedure ECS0097H

D
1. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve B E
2. Check resistance to the terminal and ground.
Resistance F
Solenoid valve Terminal No.
(Approx.)
Shift solenoid valve B 1 Ground 5 - 20Ω
OK or NG G
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
H

WCIA0091E

2. CHECK VALVE OPERATION I

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve B J
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG K
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
L

M
WCIA0092E

3. CHECK CONTROL VALVE

1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check to ensure that:
– Valve, sleeve and plug slide along valve bore under their own
weight.
– Valve, sleeve and plug are free from burrs, dents and scratches.
– Control valve springs are free from damage, deformation and
fatigue.
– Hydraulic line is free from obstacles.
OK or NG SAT367H

OK >> GO TO 4.
NG >> Repair control valve assembly.

Revision: November 2006 AT-139 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE4F04B]
4. CHECK DTC
Perform AT-136, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Check control valve again. Repair or replace control valve assembly.

Revision: November 2006 AT-140 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE4F04B]
DTC P0733 A/T 3RD GEAR FUNCTION PFP:31940
A
Description ECS0097I

● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.

● This malfunction will not be detected while the A/T check (position) indicator lamp is indicating another B
self-diagnosis malfunction.
● This malfunction is detected when the A/T does not shift into third gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such AT
as control valve sticking, improper solenoid valve operation, malfunctioning servo piston or brake band,
etc.
Gear position 1 2 3 4 D
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
E
On Board Diagnosis Logic ECS0097J

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows: F
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM G
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (3rd) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve A is stuck closed. H
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck closed: 1, 1, 4* and 4 positions to each gear position I
above
*: P0733 is detected.
Diagnostic trouble code A/T 3RD GR FNCTN with CONSULT-II or P0733 without CONSULT-II is detected
when A/T cannot be shifted to the 3rd gear position even if electrical circuit is good. J

Possible Cause ECS0097K

Check the following items. K

● Shift solenoid valve A
● Each clutch
L
● Hydraulic control circuit
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0097L

CAUTION: M
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-141 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE4F04B]
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below.
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid).
3. Select “3RD GR FNCTN P0733” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
BCIA0030E

4. Accelerate vehicle to 60 to 75 km/h (37 to 47 MPH) under the

following condition and release the accelerator pedal com-
pletely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
Selector lever: D position
– Check that “GEAR” shows “4” after releasing pedal.
5. Depress accelerator pedal steadily with 3.5/8 - 4.5/8 of “THROT-
TLE POSI” from a speed of 60 to 75 km/h (37 to 47 MPH) until
“TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It
will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT- BCIA0031E

144, "Diagnostic Procedure" .

If “STOP VEHICLE” appears on CONSULT-II screen, go to fol-
lowing step.
– Check that “GEAR” shows “3” when depressing accelera-
tor pedal with 3.5/8 - 4.5/8 of “THROTTLE POSI”.
– If “TESTING” does not appear on CONSULT-II for a long
time, select “SELF-DIAG RESULTS” for “ENGINE”. In case a
1st trip DTC other than P0733 is shown, refer to applicable
“TROUBLE DIAGNOSIS FOR DTC”.
6. Stop vehicle.
7. Follow the instruction displayed. (Check for normal shifting refer- SAT021J
ring to the table below.)
Gear on actual transaxle shift pattern when
Vehicle condition
screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1→2→3→4
Malfunction for P0733 exists. 1→1→4→4

8. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-144, "Diagnostic Procedure" .
Refer to AT-378, "Shift Schedule" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-142 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE4F04B]
Wiring Diagram — AT — 3RDSIG ECS0097M

AT

LCWA0012E

Revision: November 2006 AT-143 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
WHEN SHIFT SOLENOID VALVE
A IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D4 )
11 R/Y SHIFT SOLENOID VALVE A
WHEN SHIFT SOLENOID VALVE
A IS NOT OPERATING (DRIVING 0V
IN D2 OR D3 )

Diagnostic Procedure ECS0097N

1. CHECK VALVE RESISTANCE

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
2. Check resistance to the terminal and ground.
Resistance
Solenoid valve Terminal No.
(Approx.)
Shift solenoid valve A 2 Ground 20 - 30Ω
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.

WCIA0093E

2. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.

WCIA0094E

3. CHECK CONTROL VALVE

1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check to ensure that:
– Valve, sleeve and plug slide along valve bore under their own
weight.
– Valve, sleeve and plug are free from burrs, dents and scratches.
– Control valve springs are free from damage, deformation and
fatigue.
– Hydraulic line is free from obstacles.
OK or NG SAT367H

OK >> GO TO 4.
NG >> Repair control valve assembly.

Revision: November 2006 AT-144 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE4F04B]
4. CHECK DTC A
Perform AT-141, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> Check control valve again. Repair or replace control valve assembly.

AT

Revision: November 2006 AT-145 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
DTC P0734 A/T 4TH GEAR FUNCTION PFP:31940

Description ECS0097O

● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.

● This malfunction will not be detected while the A/T check (position) indicator lamp is indicating another
self-diagnosis malfunction.
● This malfunction is detected when the A/T does not shift into fourth gear position or the torque converter
clutch does not lock up as instructed by the TCM. This is not caused by electrical malfunction (circuits
open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve
operation, malfunctioning oil pump or torque converter clutch, etc.
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.
Monitor item Condition Specification
Lock-up OFF Approximately 4%
Torque converter clutch
↓ ↓
solenoid valve duty
Lock-up ON Approximately 94%
Small throttle opening (Low line pressure) Approximately 24%
Line pressure solenoid
↓ ↓
valve duty
Large throttle opening (High line pressure) Approximately 95%

On Board Diagnosis Logic ECS0097P

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is much lower than the position (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck closed.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve B stuck closed: 1, 2, 2 and 1* positions to each gear position
above
*: P0734 is detected.
Diagnostic trouble code A/T 4TH GR FNCTN with CONSULT-II or P0734 without CONSULT-II is detected
when A/T cannot be shifted to the 4th gear position even if electrical circuit is good.
Possible Cause ECS0097Q

Check the following items.

● Shift solenoid valve A
● Shift solenoid valve B
● Line pressure solenoid valve
● Each clutch
● Hydraulic control circuit
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0097R

CAUTION:
● Always drive vehicle at a safe speed.
● If conducting this “DTC CONFIRMATION PROCEDURE” again, always turn ignition switch OFF
and wait at least 10 seconds before continuing.
● Be careful not to rev engine into the red zone on the tachometer.

Revision: November 2006 AT-146 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at A
least 10 seconds before conducting the next test.
TESTING CONDITION:
Always drive vehicle on a level road to improve the accuracy of test.
B
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with AT
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below. D
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive the vehicle to decrease the voltage (warm
up the fluid) or stop engine to increase the voltage (cool down
the fluid). E
3. Select “4TH GR FNCTN P0734” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
BCIA0030E F

4. Accelerate vehicle to 55 to 65 km/h (34 to 40 MPH) under the

following condition and release the accelerator pedal com- G
pletely.
THROTTLE POSI: Less than 5.5/8 (at all times during step 4)
Selector lever: D position
H
– Check that “GEAR” shows “3” after releasing pedal.
5. Depress accelerator pedal steadily with 1.0/8 - 2.0/8 of “THROT-
TLE POSI” from a speed of 55 to 65 km/h (34 to 40 MPH) until
“TESTING” has turned to “STOP VEHICLE” or “COMPLETED”. I
(It will take approximately 3 seconds.)
If the check result NG appears on CONSULT-II screen, go to AT- BCIA0031E

149, "Diagnostic Procedure" . J

If “STOP VEHICLE” appears on CONSULT-II screen, go to following step.
– Check that “GEAR” shows “4” when depressing accelera-
tor pedal with 1.0/8 - 2.0/8 of “THROTTLE POSI”. K
– If “TESTING” does not appear on CONSULT-II for a long
time, select “SELF-DIAG RESULTS” for “ENGINE”. In case a
1st trip DTC other than P0734 is shown, refer to applicable L
“TROUBLE DIAGNOSIS FOR DTC”.
6. Stop vehicle.
7. Follow the instruction displayed. (Check for normal shifting refer- M
ring to the table below.)
Gear on actual transaxle shift pattern when SAT021J
Vehicle condition
screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1→2→3→4
Malfunction for P0734 exists. 1→2→2→1
8. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-149, "Diagnostic Procedure" .
Refer to AT-378, "Shift Schedule" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-147 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
Wiring Diagram — AT — 4THSIG ECS0097S

BCWA0142E

Revision: November 2006 AT-148 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN ACCELERATOR PEDAL
1.5 - 3.0V
LINE PRESSURE SOLENOID IS RELEASED WHILE DRIVING
1 G/R
VALVE WHEN ACCELERATOR PEDAL B
0V
IS DEPRESSED WHILE DRIVING
WHEN ACCELERATOR PEDAL
LINE PRESSURE SOLENOID 4 - 14V
IS RELEASED WHILE DRIVING AT
2 W/B VALVE (DROPPING RESIS-
TOR) WHEN ACCELERATOR PEDAL
0V
IS DEPRESSED WHILE DRIVING
WHEN SHIFT SOLENOID VALVE D
A IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D4 )
11 R/Y SHIFT SOLENOID VALVE A
WHEN SHIFT SOLENOID VALVE
E
A IS NOT OPERATING (DRIVING 0V
IN D2 OR D3 )
WHEN SHIFT SOLENOID VALVE
B IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE F
OR D2 )
12 LG/B SHIFT SOLENOID VALVE B
WHEN SHIFT SOLENOID VALVE
BE IS NOT OPERATING (DRIV- OV G
ING IN D3 OR D4 )

Diagnostic Procedure ECS0097T

H

1. CHECK SHIFT UP (D3 TO D4 )

I
During AT-86, "Cruise Test — Part 1" , does A/T shift from D3 to D4
at the specified speed?
Yes or No
J
Yes >> GO TO 11.
No >> GO TO 2.
K

L
SAT988H

2. CHECK LINE PRESSURE M

Perform line pressure test.

Engine Speed Line Pressure kPa (kg/cm2 , psi)

RPM D, 2 and 1 Position R Position
Idle 500 (5.1, 73) 778 (7.9, 113)
Stall 1,233 (12.6, 179) 1,918 (19.6, 278)

Refer to AT-77, "Line Pressure Test" .

OK or NG
OK >> GO TO 3.
NG >> GO TO 7.

Revision: November 2006 AT-149 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
3. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
– Shift solenoid valve B
2. Check resistance between two terminals.
Resistance
Solenoid valve Terminal No.
(Approx.)
Shift solenoid valve A 2 20 - 30Ω
Ground
Shift solenoid valve B 1 5 - 20Ω
OK or NG
OK >> GO TO 5.
NG >> Replace solenoid valve assembly.
WCIA0089E

4. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Shift solenoid valve A
– Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace solenoid valve assembly.

WCIA0090E

5. CHECK CONTROL VALVE

1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check to ensure that:
– Valve, sleeve and plug slide along valve bore under their own
weight.
– Valve, sleeve and plug are free from burrs, dents and scratches.
– Control valve springs are free from damage, deformation and
fatigue.
– Hydraulic line is free from obstacles.
OK or NG SAT367H

OK >> GO TO 6.
NG >> Repair control valve.

6. CHECK SHIFT UP (D3 TO D4 )

Does A/T shift from D3 to D4 at the specified speed?

OK or NG
OK >> GO TO 11.
NG >> Check control valve again. Repair or replace control valve assembly.

Revision: November 2006 AT-150 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
7. CHECK VALVE RESISTANCE A
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Line pressure solenoid valves
2. Check resistance to the terminal and ground. B

Resistance
Solenoid valve Terminal No.
(Approx.)
AT
Line pressure solenoid valve 4 Ground 2.5 - 5Ω

OK or NG
OK >> GO TO 9. D
NG >> Replace solenoid valve assembly.

E
WCIA0098E

8. CHECK VALVE OPERATION

F
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Line pressure solenoid valves
2. Check solenoid valve by listening for its operating sound while G
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 9. H
NG >> Replace solenoid valve assembly.

WCIA0099E J

9. CHECK CONTROL VALVE

1. Disassemble control valve assembly. Refer to AT-306, "Control K
Valve Assembly" .
2. Check line pressure circuit valves for sticking.
L
– Pressure regulator valve
– Pilot valve
– Pressure modifier valve
M
OK or NG
OK >> GO TO 10.
NG >> Repair control valve.
SAT367H

10. CHECK SHIFT UP (D3 TO D4 )

Does A/T shift from D3 to D4 at the specified speed?

OK or NG
OK >> GO TO 11.
NG >> Check control valve again. Repair or replace control valve assembly.

Revision: November 2006 AT-151 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE4F04B]
11. CHECK DTC
Perform AT-146, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Perform “Cruise test — Part 1” again and return to the start point of this test group.

Revision: November 2006 AT-152 2006 Altima

 DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
[RE4F04B]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE PFP:31940
A
Description ECS0097U

The torque converter clutch solenoid valve is activated, with the gear
in D4 , by the TCM in response to signals sent from the vehicle B
speed and the ECM (throttle opening). Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low. AT
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up. D

SAT283HB

E
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item Condition Specification
Lock-up OFF Approximately 4% F
Torque converter clutch
↓ ↓
solenoid valve duty
Lock-up ON Approximately 94%
G
On Board Diagnosis Logic ECS0097V

Diagnostic trouble code TCC SOLENOID/CIRC with CONSULT-II or P0740 without CONSULT-II is detected
when TCM detects an improper voltage drop when it tries to operate the solenoid valve. H
Possible Cause ECS0097W

Check the following items.

I
● Torque converter clutch solenoid valve
● Harness or connectors
(The solenoid circuit is open or shorted.)
J
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0097X

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at K
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II L
1. Turn ignition switch ON.

BCIA0030E

Revision: November 2006 AT-153 2006 Altima

 DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
[RE4F04B]
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II and
wait at least 1 second.

BCIA0031E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-154 2006 Altima

 DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
[RE4F04B]
Wiring Diagram — AT — TCV ECS0097Y

AT

LCWA0014E

Revision: November 2006 AT-155 2006 Altima

 DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
WITH TORQUE CONVERTER
8 - 15V
TORQUE CONVERTER LOCK-UP
3 G/B
CLUTCH SOLENOID VALVE WITHOUT TORQUE CON-
0V
VERTER LOCK-UP

Diagnostic Procedure ECS0097Z

1. CHECK VALVE RESISTANCE

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
Resistance : 5 - 20Ω
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

WCIA0100E

2. CHECK VALVE OPERATION

1. Remove oil pan.
2. Check the following items:
– Torque converter clutch solenoid valve
• Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
– Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

WCIA0101E

3. CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal cord assembly harness connector terminal 5 and TCM harness con-
nector terminal 3. Refer to AT-155, "Wiring Diagram — AT — TCV" .
Continuity should exist.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

Revision: November 2006 AT-156 2006 Altima

 DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
[RE4F04B]
4. CHECK DTC A
Perform AT-153, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> GO TO 5.

5. CHECK TCM INSPECTION AT

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
D
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts. E

Revision: November 2006 AT-157 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) PFP:31940

Description ECS00980

● This is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.

● This malfunction will not be detected while the A/T check position indicator lamp is indicating another self-
diagnosis malfunction.
● This malfunction is detected when the A/T does not shift into fourth gear position or the torque converter
clutch does not lock up as instructed by the TCM. This is not caused by electrical malfunction (circuits
open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve
operation, malfunctioning oil pump or torque converter clutch, etc.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
Monitor item Condition Specification
Lock-up OFF Approximately 4%
Torque converter clutch
↓ ↓
solenoid valve duty
Lock-up ON Approximately 94%

On Board Diagnosis Logic ECS00981

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is much lower than the position (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach the specified value, TCM judges this diagnosis malfunction.
This malfunction will be caused when shift solenoid valve B is stuck closed.
Gear positions supposed by TCM are as follows.
In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve B stuck closed: 1, 2, 2 and 1* positions to each gear position
above
*: P0744 is detected.
Diagnostic trouble code A/T TCC S/V FNCTN with CONSULT-II or P0744 without CONSULT-II is detected
when A/T cannot perform lock-up even if electrical circuit is good.
Possible Cause ECS00982

Check the following items.

● Line pressure solenoid valve
● Torque converter clutch solenoid valve
● Each clutch
● Hydraulic control circuit
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS00983

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-158 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with A
CONSULT-II.
2. Make sure that output voltage of A/T fluid temperature sensor is
within the range below. B
FLUID TEMP SEN: 0.4 - 1.5V
If out of range, drive vehicle to decrease voltage (warm up the
fluid) or stop engine to increase voltage (cool down the fluid).
AT
3. Select “TCC S/V FNCTN P0744” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.

BCIA0030E
D

4. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain

the following condition continuously until “TESTING” has turned E
to “COMPLETE”. (It will take approximately 30 seconds after
“TESTING” shows.)
THROTTLE POSI: 1.0/8 - 2.0/8 (at all times during step 4) F
Selector lever: D position
TCC S/V DUTY: More than 94%
VHCL/S SE·A/T: Constant speed of more than 80 km/h (50
MPH) G
– Check that “GEAR” shows “4”.
– For shift schedule, refer to AT-378, "Shift Schedule" . BCIA0031E
H
– If “TESTING” does not appear on CONSULT-II for a long
time, select “SELF-DIAG RESULTS”. In case a 1st trip DTC other than P0744 is shown, refer to
applicable “TROUBLE DIAGNOSIS FOR DTC”.
5. Make sure that “OK” is displayed. (If “NG” is displayed, refer to I
“DIAGNOSTIC PROCEDURE”.)
Refer to AT-161, "Diagnostic Procedure" .
Refer to AT-378, "Shift Schedule" . J

L
SAT021J

WITH GST
Follow the procedure “With CONSULT-II”. M

Revision: November 2006 AT-159 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
Wiring Diagram — AT — TCCSIG ECS00984

BCWA0143E

Revision: November 2006 AT-160 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN ACCELERATOR PEDAL
1.5 - 3.0V
LINE PRESSURE SOLENOID IS RELEASED WHILE DRIVING
1 G/R
VALVE WHEN ACCELERATOR PEDAL B
0V
IS DEPRESSED WHILE DRIVING
WHEN ACCELERATOR PEDAL
LINE PRESSURE SOLENOID 4 - 14V
IS RELEASED WHILE DRIVING AT
2 W/B VALVE (DROPPING RESIS-
TOR) WHEN ACCELERATOR PEDAL
0V
IS DEPRESSED WHILE DRIVING
WITH TORQUE CONVERTER D
8 - 15V
TORQUE CONVERTER LOCK-UP
3 G/B
CLUTCH SOLENOID VALVE WITHOUT TORQUE CON-
0V
VERTER LOCK-UP E
Diagnostic Procedure ECS00985

F
1. CHECK SHIFT UP (D3 TO D4 )

During AT-86, "Cruise Test — Part 1" , does A/T shift from D3 to D4
at the specified speed? G
Yes or No
Yes >> GO TO 11.
H
No >> GO TO 2.

SAT988H
J
2. CHECK LINE PRESSURE
Perform line pressure test. K

Engine Speed Line Pressure kPa (kg/cm2 , psi)

RPM D, 2 and 1 Position R Position L
Idle 500 (5.1, 73) 778 (7.9, 113)
Stall 1,233 (12.6, 179) 1,918 (19.6, 278)
M
Refer to AT-77, "Line Pressure Test" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.

Revision: November 2006 AT-161 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
3. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check to ensure that:
– Valve, sleeve and plug slide along valve bore under their own
weight.
– Valve, sleeve and plug are free from burrs, dents and scratches.
– Control valve springs are free from damage, deformation and
fatigue.
– Hydraulic line is free from obstacles.
OK or NG SAT367H

OK >> GO TO 4.
NG >> Repair control valve.

4. CHECK SHIFT UP (D3 TO D4 )

Does A/T shift from D3 to D4 at the specified speed?

OK or NG
OK >> GO TO 5.
NG >> Check control valve again. Repair or replace control valve assembly.

5. CHECK DTC
Perform AT-158, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 11. Check for proper lock-up.

6. CHECK VALVE RESISTANCE

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Line pressure solenoid valve
2. Check resistance to the terminal and ground.
Resistance
Solenoid valve Terminal No.
(Approx.)
Line pressure solenoid valve 4 Ground 2.5 - 5Ω

OK or NG
OK >> GO TO 8.
NG >> Replace solenoid valve assembly.

WCIA0098E

Revision: November 2006 AT-162 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
7. CHECK VALVE OPERATION A
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Line pressure solenoid valve
2. Check solenoid valve by listening for its operating sound while B
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 8. AT
NG >> Replace solenoid valve assembly.

E
WCIA0099E

8. CHECK CONTROL VALVE

F
1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check line pressure circuit valves for sticking. G
– Pressure regulator valve
– Pilot valve
– Pressure modifier valve H
OK or NG
OK >> GO TO 9.
NG >> Repair control valve. I
SAT367H

9. CHECK SHIFT UP (D3 TO D4 )

J
Does A/T shift from D3 to D4 at the specified speed?
OK or NG
OK >> GO TO 10. K
NG >> Check control valve again. Repair or replace control valve assembly.

10. CHECK DTC L

Perform AT-158, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .

OK or NG M
OK >> INSPECTION END
NG >> GO TO 11. Check for proper lock-up.

11. CHECK LOCK-UP

During AT-86, "Cruise Test — Part 1" , does A/T perform lock-up at
the specified speed?
Yes or No
Yes >> Perform “Cruise test — Part 1” again and return to the
start point of this test group.
No >> GO TO 12.

SAT989H

Revision: November 2006 AT-163 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
12. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Torque converter clutch solenoid valve
2. Check resistance to the terminal and ground.
Resistance
Solenoid valve Terminal No.
(Approx.)
Torque converter clutch solenoid valve 5 Ground 5 - 20Ω

OK or NG
OK >> GO TO 14.
NG >> Replace solenoid valve assembly.

WCIA0102E

13. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
– Torque converter clutch solenoid valve
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
OK or NG
OK >> GO TO 14.
NG >> Replace solenoid valve assembly.

WCIA0101E

14. CHECK CONTROL VALVE

1. Disassemble control valve assembly. Refer to AT-306, "Control
Valve Assembly" .
2. Check control valves for sticking.
– Torque converter clutch control valve
– Torque converter clutch relief valve
OK or NG
OK >> GO TO 15.
NG >> Repair control valve.

SAT367H

15. CHECK LOCK-UP

Does A/T perform lock-up at the specified speed?
Yes or No
Yes >> GO TO 16.
No >> Check control valve again. Repair or replace control valve assembly.

Revision: November 2006 AT-164 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE4F04B]
16. CHECK DTC A
Perform AT-158, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> Perform “Cruise test — Part 1” again and return to the start point of this test group.

AT

Revision: November 2006 AT-165 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
DTC P0745 LINE PRESSURE SOLENOID VALVE PFP:31940

Description ECS00986

The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.

SAT283HB

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.
Monitor item Condition Specification
Small throttle opening
(Low line pressure) Approximately 24%
Line pressure solenoid
↓ ↓
valve duty
Large throttle opening Approximately 95%
(High line pressure)

On Board Diagnosis Logic ECS00987

Diagnostic trouble code L/PRESS SOL/CIRC with CONSULT-II or P0745 without CONSULT-II is detected
when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause ECS00988

Check the following items.

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Line pressure solenoid valve
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS00989

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.

BCIA0030E

Revision: November 2006 AT-166 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
2. Depress accelerator pedal completely and wait at least 1 sec-
ond. A

AT

BCIA0031E

D
WITH GST
Follow the procedure “With CONSULT-II”.
E

Revision: November 2006 AT-167 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
Wiring Diagram — AT — LPSV ECS0098A

BCWA0468E

Revision: November 2006 AT-168 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN ACCELERATOR PEDAL
1.5 - 3.0V
LINE PRESSURE SOLENOID IS RELEASED WHILE DRIVING
1 G/R
VALVE WHEN ACCELERATOR PEDAL B
0V
IS DEPRESSED WHILE DRIVING
WHEN ACCELERATOR PEDAL
LINE PRESSURE SOLENOID 4 - 14V
IS RELEASED WHILE DRIVING AT
2 W/B VALVE (DROPPING RESIS-
TOR) WHEN ACCELERATOR PEDAL
0V
IS DEPRESSED WHILE DRIVING

Diagnostic Procedure ECS0098B

D

1. CHECK VALVE RESISTANCE E

1. Turn ignition switch to OFF position.

2. Disconnect terminal cord assembly connector in engine compartment. F
3. Check resistance between terminal cord assembly harness con-
nector terminal 4 and ground.
Resistance : 2.5 - 5Ω G
OK or NG
OK >> GO TO 3.
NG >> GO TO 2. H

I
WCIA0103E

2. CHECK VALVE OPERATION J

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Line pressure solenoid valve K
• Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
L
– Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 3. M
NG >> Repair or replace damaged parts.

WCIA0099E

Revision: November 2006 AT-169 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
3. CHECK POWER SOURCE AND DROPPING RESISTOR CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check resistance between terminal 4 and TCM harness connec-
tor terminal 2.
Resistance : 10 - 15Ω
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.

WCIA0105E

4. DETECT MALFUNCTIONING ITEM

Check the following items:
● Dropping resistor
● Check resistance between two terminals.
Resistance :10 - 15Ω
● Harness for short or open between TCM terminal 2 and terminal
cord assembly (Main harness)
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

WCIA0362E

5. CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to OFF position.
2. Check continuity between terminal cord assembly harness connector terminal 4 and TCM harness con-
nector terminal 1. Refer to AT-168, "Wiring Diagram — AT — LPSV" .
Continuity should exist.
3. Reinstall any part removed.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

6. CHECK DTC
Perform AT-166, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.

Revision: November 2006 AT-170 2006 Altima

 DTC P0745 LINE PRESSURE SOLENOID VALVE
[RE4F04B]
7. CHECK TCM INSPECTION A
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG B
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
AT

Revision: November 2006 AT-171 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE4F04B]
DTC P0750 SHIFT SOLENOID VALVE A PFP:31940

Description ECS0098C

Shift solenoid valves A and B are turned ON or OFF by the TCM in

response to signals sent from the park/neutral position (PNP) switch,
vehicle speed and ECM (throttle opening). Gears will then be shifted
to the optimum position.

SAT283HB

Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

On Board Diagnosis Logic ECS0098D

Diagnostic trouble code SFT SOL A/CIRC with CONSULT-II or P0750 without CONSULT-II is detected when
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause ECS0098E

Check the following items.

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Shift solenoid valve A
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0098F

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.

BCIA0030E

Revision: November 2006 AT-172 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE4F04B]
2. Start engine.
3. Drive vehicle in D position and allow the transaxle to shift 1 → 2 A
(“GEAR”).

AT

BCIA0031E

D
WITH GST
Follow the procedure “With CONSULT-II”.
E

Revision: November 2006 AT-173 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE4F04B]
Wiring Diagram — AT — SSV/A ECS0098G

LCWA0017E

Revision: November 2006 AT-174 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
WHEN SHIFT SOLENOID VALVE
A IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D4 )
11 R/Y SHIFT SOLENOID VALVE A B
WHEN SHIFT SOLENOID VALVE
A IS NOT OPERATING (DRIVING 0V
IN D2 OR D3 )
AT
Diagnostic Procedure ECS0098H

D
1. CHECK VALVE RESISTANCE
1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment. E
3. Check resistance between terminal cord assembly harness con-
nector terminal 2 and ground.
F
Resistance : 20 - 30Ω
OK or NG
OK >> GO TO 3. G
NG >> GO TO 2.

WCIA0106E

2. CHECK VALVE OPERATION I

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items: J
– Shift solenoid valve A
– Operation check
• Check solenoid valve by listening for its operating sound while K
applying battery voltage to the terminal and ground.
– Harness of terminal cord assembly for short or open
OK or NG L
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
M

WCIA0094E

3. CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal cord assembly harness connector terminal 2 and TCM harness con-
nector terminal 11. Refer to AT-174, "Wiring Diagram — AT — SSV/A" .
Continuity should exist.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

Revision: November 2006 AT-175 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE4F04B]
4. CHECK DTC
Perform AT-172, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

5. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-176 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE4F04B]
DTC P0755 SHIFT SOLENOID VALVE B PFP:31940
A
Description ECS0098I

Shift solenoid valves A and B are turned ON or OFF by the TCM in

response to signals sent from the park/neutral position (PNP) switch, B
vehicle speed and ECM (throttle opening). Gears will then be shifted
to the optimum position.
AT

SAT283HB

E
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
F
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

On Board Diagnosis Logic ECS0098J

G
Diagnostic trouble code SFT SOL B/CIRC with CONSULT-II or P0755 without CONSULT-II is detected when
TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Cause ECS0098K H
Check the following items.
● Harness or connectors
(The solenoid circuit is open or shorted.) I
● Shift solenoid valve B
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0098L J
CAUTION:
Always drive vehicle at a safe speed.
NOTE: K
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated. L
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II. M

BCIA0030E

Revision: November 2006 AT-177 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE4F04B]
2. Start engine.
3. Drive vehicle in D position and allow the transaxle to shift 1 → 2
→ 3 (“GEAR”).

BCIA0031E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-178 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE4F04B]
Wiring Diagram — AT — SSV/B ECS0098M

AT

LCWA0018E

Revision: November 2006 AT-179 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
WHEN SHIFT SOLENOID VALVE
B IS OPERATING (DRIVING IN D1 BATTERY VOLTAGE
OR D2 )
12 LG/B SHIFT SOLENOID VALVE B
WHEN SHIFT SOLENOID VALVE
BE IS NOT OPERATING (DRIV- 0V
ING IN D3 OR D4 )

Diagnostic Procedure ECS0098N

1. CHECK VALVE RESISTANCE

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord assembly harness con-
nector terminal 1 and ground.
Resistance : 5 - 20Ω
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

WCIA0107E

2. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift solenoid valve B
– Operation check
• Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
– Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

WCIA0092E

3. CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal cord harness connector terminal 1 and TCM harness connector termi-
nal 12. Refer to AT-179, "Wiring Diagram — AT — SSV/B" .
Continuity should exist.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

Revision: November 2006 AT-180 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE4F04B]
4. CHECK DTC A
Perform AT-177, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> GO TO 5.

5. CHECK TCM INSPECTION AT

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
D
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts. E

Revision: November 2006 AT-181 2006 Altima

 DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSI-
TION (APP) SENSOR]
[RE4F04B]
DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION
(APP) SENSOR] PFP:22560

Description ECS0098O

Electric throttle control actuator consists of throttle control motor,

accelerator pedal position sensor, throttle position sensor, etc. The
actuator sends signals to the ECM, and ECM sends signals to TCM
via CAN communication.

LCIA0067E

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.
Monitor item Condition Specification
Released accelerator pedal 0.0/8
THROTTLE POSI
Fully depressed accelerator pedal 8.0/8

On Board Diagnosis Logic ECS0098P

This is an OBD self-diagnostic item.

Diagnostic trouble code "P1705 THROTTLE POSI SEN" with CONSULT-II or 3rd judgement flicker without
CONSULT-II is detected when TCM does not receive the proper accelerator pedal position signals (input via
CAN communication from ECM.
Possible Cause ECS0098Q

Harness or connectors
(The sensor circuit is open or shorted.)
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0098R

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Depress accelerator pedal fully and release it, then wait for 5
seconds.
3. If DTC is detected, go to AT-183, "Diagnostic Procedure" .

BCIA0031E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-182 2006 Altima

 DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSI-
TION (APP) SENSOR]
[RE4F04B]
Diagnostic Procedure ECS0098T

1. CHECK CAN COMMUNICATIN LINE

B
Perform the self-diagnosis check. Refer to AT-49, "SELF-DIAGNOSTIC RESULT TEST MODE" , AT-59,
"Diagnostic Procedure Without CONSULT-II" .
Is any malfunction of the "U1000 CAN COMM CIRCUIT" indicated?
AT
YES >> Check the CAN communication line. Refer to AT-190, "DTC U1000 CAN COMMUNICATION
LINE" .
NO >> GO TO 2.
D
2. CHECK INPUT SIGNAL

With CONSULT-II E
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II. F
3. Read out the value of "THROTTLE POSI".
Display value
Item name Condition
(Approx.)
G

THROTTLE POSI Release accelerator pedal 0.0/8

Fully depressed accelerator pedal 8.0/8 H
OK or NG
OK >> GO TO 4.
NG >> GO TO 3. I

SCIA3251E

J
3. CHECK DTC WITH ECM
With CONSULT-II K
1. Turn ignition switch to ON position. (Do not start engine.)
2. Select "SELF-DIAG RESULTS" mode for "Engine" with CON-
SULT-II. Refer to EC-121, "SELF-DIAG RESULTS MODE" . L
OK or NG
OK >> GO TO 4.
NG >> Check the DTC detected item. GO TO EC-121, "SELF- M
DIAG RESULTS MODE" .

BCIA0030E

4. CHECK DTC
Perform "DTC Confirmation Procedure". Refer to AT-182, "Diagnostic Trouble Code (DTC) Confirmation Pro-
cedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

Revision: November 2006 AT-183 2006 Altima

 DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSI-
TION (APP) SENSOR]
[RE4F04B]
5. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-184 2006 Altima

 DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
[RE4F04B]
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE PFP:31940
A
Description ECS0098U

The overrun clutch solenoid valve is activated by the TCM in

response to signals sent from the park/neutral position (PNP) switch, B
overdrive control switch, vehicle speed and ECM (throttle opening).
The overrun clutch operation will then be controlled.
AT

SAT283HB

E
On Board Diagnosis Logic ECS0098V

Diagnostic trouble code O/R CLTCH SOL/CIRC with CONSULT-II or P1760 without CONSULT-II is detected
when TCM detects an improper voltage drop when it tries to operate the solenoid valve. F
Possible Cause ECS0098W

Check the following items.

G
● Harness or connectors
(The solenoid circuit is open or shorted.)
● Overrun clutch solenoid valve
H
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0098X

CAUTION:
Always drive vehicle at a safe speed. I
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCEDURE” has been previously conducted, always
turn ignition switch OFF and wait at least 10 seconds before conducting the next test. J
TESTING CONDITION:
Always drive vehicle on a level road to improve accuracy of test.
After the repair, perform the following procedure to confirm the malfunction is eliminated. K
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“A/T” with CONSULT-II. L
2. Touch "MAIN SIGNALS".
Touch "START".
3. Start engine. M
4. Accelerate vehicle to a speed of more than 10 km/h (6 MPH)
with selector lever in D position.

BCIA0030E

Revision: November 2006 AT-185 2006 Altima

 DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
[RE4F04B]
5. Release accelerator pedal completely with selector lever in 3
position. Verify operation of "OVERRUN/C S/V".

BCIA0031E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-186 2006 Altima

 DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
[RE4F04B]
Wiring Diagram — AT — OVRCSV ECS0098Y

AT

WCWA0053E

Revision: November 2006 AT-187 2006 Altima

 DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
WHEN OVERRUN CLUTCH
BATTERY VOLTAGE
SOLENOID VALVE OPERATES
OVERRUN CLUTCH SOLE-
20 BR/Y WHEN OVERRUN CLUTCH
NOID VALVE
SOLENOID VALVE DOES NOT 0V
OPERATE

Diagnostic Procedure ECS0098Z

1. CHECK VALVE RESISTANCE

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord assembly F30 terminal
3 (component side) and ground.
Resistance : 20 - 30Ω
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

LCIA0092E

2. CHECK VALVE OPERATION

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Overrun clutch solenoid valve
– Operation check
• Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
– Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

LCIA0093E

3. CHECK POWER SOURCE CIRCUIT

1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal cord assembly harness connector terminal 3 and TCM harness con-
nector terminal 20. Refer to AT-187, "Wiring Diagram — AT — OVRCSV" .
Continuity should exist.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.

Revision: November 2006 AT-188 2006 Altima

 DTC P1760 OVERRUN CLUTCH SOLENOID VALVE
[RE4F04B]
4. CHECK DTC A
Perform AT-185, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> GO TO 5.

5. CHECK TCM INSPECTION AT

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
D
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts. E

Revision: November 2006 AT-189 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE4F04B]
DTC U1000 CAN COMMUNICATION LINE PFP:23710

Description ECS00990

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis Logic ECS00991

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code A/T COMM LINE or U1000 with CONSULT-II and 12th judgement flicker without
CONSULT-II is detected when TCM cannot communicate to other control unit.
Possible Cause ECS00992

Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation Procedure ECS00993

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF”
and wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to AT-193, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “WITH CONSULT-II”.

BCIA0031E

WITHOUT CONSULT-II
1. Turn ignition switch "ON".

Revision: November 2006 AT-190 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE4F04B]
2. Wait at least 6 seconds or start engine and wait at least 6 sec-
onds. A
3. Perform self-diagnosis. Refer to AT-60, "TCM SELF-DIAGNOS-
TIC PROCEDURE (NO TOOLS)" .
B

AT

LCIA0075E

Revision: November 2006 AT-191 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE4F04B]
Wiring Diagram — AT — CAN ECS00994

BCWA0469E

Revision: November 2006 AT-192 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE4F04B]
Diagnostic Procedure ECS00995

1. CHECK CAN COMMUNICATION CIRCUIT A

With CONSULT-II
B
1. Turn ignition switch to “ON” position. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. The “CAN COMM CIRCUIT” is detected. AT
Yes or No
Yes >> Print out CONSULT-II screen, GO TO LAN-3, "Precau-
tions When Using CONSULT-II" . D
No >> INSPECTION END

PCIA0061E
F

Revision: November 2006 AT-193 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE) PFP:31940

Description ECS00996

The A/T fluid temperature sensor detects the A/T fluid temperature
and sends a signal to the TCM.

SAT283HB

SAT021J

CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE

Remarks: Specification data are reference values.
Monitor item Condition Specification (Approximately)
Cold [20°C (68°F)] 1.5V 2.5 kΩ
A/T fluid temperature sensor ↓ ↓ ↓
Hot [80°C (176°F)] 0.5V 0.3 kΩ

On Board Diagnosis Logic ECS00997

Diagnostic trouble code BATT/FLUID TEMP SEN with CONSULT-II or 8th judgement flicker without CON-
SULT-II is detected when TCM receives an excessively low or high voltage from the sensor.
Possible Cause ECS00998

Check the following items.

● Harness or connectors
(The sensor circuit is open or shorted.)
● A/T fluid temperature sensor
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS00999

After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine.

Revision: November 2006 AT-194 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
A

AT

BCIA0030E

D
3. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 20 km/h (12
MPH).
E

G
BCIA0031E

WITHOUT CONSULT-II
1. Start engine. H
2. Drive vehicle under the following conditions:
Selector lever in D, vehicle speed higher than 20 km/h (12 MPH).
3. Perform self-diagnosis. I
Refer to AT-60, "TCM SELF-DIAGNOSTIC PROCEDURE (NO
TOOLS)" .
J

L
WCIA0056E

Revision: November 2006 AT-195 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
Wiring Diagram — AT — BA/FTS ECS0099A

BCWA0470E

Revision: November 2006 AT-196 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.) A
IGNITION ON BATTERY VOLTAGE
10 R/Y POWER SOURCE
IGNITION OFF 0V
B
IGNITION ON BATTERY VOLTAGE
19 R/Y POWER SOURCE
IGNITION OFF 0V

POWER SOURCE IGNITION ON BATTERY VOLTAGE AT

28 Y/R
(MEMORY BACKUP) IGNITION OFF BATTERY VOLTAGE
42 B SENSOR GROUND — —
IGNITION ON WITH ATF TEM- D
1.5V
A/T FLUID TEMPERATURE PERATURE AT 20°C (68°F)
47 G
SENSOR IGNITION ON WITH ATF TEM-
0.5V
PERATURE AT 80°C (176°F) E

Diagnostic Procedure ECS0099B

F
1. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II G
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
H
3. Read out the value of “FLUID TEMP SE”.
Voltage :Cold [20°C (68°F)] → Hot [80°C (176°F)]
:Approximately 1.5V → 0.5V I
OK or NG
OK >> GO TO 9.
NG >> GO TO 2. J

K
LCIA0090E

2. DETECT MALFUNCTIONING ITEM

L
Check the following items:
● Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
● Ground circuit for ECM M
Refer to EC-148, "POWER SUPPLY AND GROUND CIRCUIT" .
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-197 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
3. CHECK TCM POWER SOURCE STEP 1
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM harness connector terminals 10,
19, 28 and ground.
Voltage : Battery voltage
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

LCIA0094E

4. CHECK TCM POWER SOURCE STEP 2

1. Turn ignition switch to OFF position.
2. Check voltage between TCM harness connector terminal 28 and
ground.
Voltage : Battery voltage
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

WCIA0095E

5. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness for short or open between ignition switch and TCM (Main harness)
● Ignition switch and fuse
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY

1. Turn ignition switch to OFF position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal cord assembly F30 termi-
nals 6 and 7 (component side) when A/T is cold.
Temperature Resistance (Approx.)
Cold 20°C (68°F) 2.5kΩ
4. Reinstall any part removed.
OK or NG
OK (without CONSULT-II) >> GO TO 8.
NG >> GO TO 7.
LCIA0095E

Revision: November 2006 AT-198 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
7. DETECT MALFUNCTIONING ITEM A
1. Remove oil pan.
2. Check the following items:
– A/T fluid temperature sensor B
• Check resistance between two terminals while changing temper-
ature as shown.
AT
Temperature °C (°F) Resistance (Approx.)
20 (68) 2.5kΩ
80 (176) 0.3kΩ
D
– Harness of terminal cord assembly for short or open
OK or NG
OK (without CONSULT-II) >> GO TO 8. E
NG >> Repair or replace damaged parts.
SAT298F

8. CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II) F

Without CONSULT-II
1. Start engine. G
2. Check voltage between TCM harness connector terminal 47 and
ground while warming up A/T.
H
Temperature Voltage (Approx.)
Cold [20°C (68°F)] → Hot [80°C (176°F)] 1.5V → 0.5V
3. Turn ignition switch to OFF position. I
4. Disconnect TCM harness connector.
5. Check resistance between terminal 42 and ground. Refer to AT-
196, "Wiring Diagram — AT — BA/FTS" . J

Continuity should exist. WCIA0044E

OK or NG K
OK >> GO TO 10.
NG >> GO TO 9.
L
9. DETECT MALFUNCTIONING ITEM
Check the following items:
M
● Harness for short or open between TCM, ECM and terminal cord assembly (Main harness)
● Ground circuit for ECM
Refer to EC-148, "POWER SUPPLY AND GROUND CIRCUIT" .
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.

10. CHECK DTC

Perform AT-194, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 11.

Revision: November 2006 AT-199 2006 Altima

 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
[RE4F04B]
11. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-200 2006 Altima

 DTC VEHICLE SPEED SENSOR MTR
[RE4F04B]
DTC VEHICLE SPEED SENSOR MTR PFP:24814
A
Description ECS0099C

The vehicle speed sensor·MTR is built into the speedometer assem-

bly. The sensor functions as an auxiliary device to the revolution sen- B
sor when it is malfunctioning. The TCM will then use a signal sent
from the vehicle speed sensor·MTR.
AT

WCIA0556E

E
On Board Diagnosis Logic ECS0099D

Diagnostic trouble code VHCL SPEED SEN·MTR with CONSULT-II or 2nd judgement flicker without CON-
SULT-II is detected when TCM does not receive the proper voltage signal from the sensor. F
Possible Cause ECS0099E

Check the following items.

G
● Harness or connectors
(The sensor circuit is open or shorted.)
● Vehicle speed sensor
H
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0099F

CAUTION:
● Always drive vehicle at a safe speed. I
● If conducting this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait
at least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated. J

WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for K
“A/T” with CONSULT-II.

BCIA0030E

2. Start engine and accelerate vehicle from 0 to 25 km/h (0 to 16

MPH).

BCIA0031E

WITHOUT CONSULT-II
1. Start engine.
Revision: November 2006 AT-201 2006 Altima
 DTC VEHICLE SPEED SENSOR MTR
[RE4F04B]
2. Drive vehicle under the following conditions:
Selector lever in D and vehicle speed higher than 25 km/h (16 MPH).
3. Perform self-diagnosis.
Refer to AT-60, "TCM SELF-DIAGNOSTIC PROCEDURE (NO
TOOLS)" .

WCIA0058E

Revision: November 2006 AT-202 2006 Altima

 DTC VEHICLE SPEED SENSOR MTR
[RE4F04B]
Wiring Diagram — AT — VSSMTR ECS0099G

AT

BCWA0471E

Revision: November 2006 AT-203 2006 Altima

 DTC VEHICLE SPEED SENSOR MTR
[RE4F04B]
Diagnostic Procedure ECS0099H

1. CHECK INPUT SIGNAL

With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out the value of “VHCL/S SE·MTR” while driving.
Check the value changes according to driving speed.

LCIA0090E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 40 and ground while driv-
ing at 2 to 3 km/h (1 to 2 MPH) for 1 m (3 ft) or more.
Voltage :Voltage varies between less than 1V and
more than 4.5V.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

SAT356JA

2. DETECT MALFUNCTIONING ITEM

Check the following items:
● Vehicle speed sensor and ground circuit for vehicle speed sensor
Refer to DI-18, "Vehicle Speed System" .
● Harness for short or open between TCM and vehicle speed sensor (Main harness)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK DTC
Perform AT-201, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.

4. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-204 2006 Altima

 DTC TURBINE REVOLUTION SENSOR
[RE4F04B]
DTC TURBINE REVOLUTION SENSOR PFP:31935
A
Description ECS0099I

The turbine revolution sensor detects forward clutch drum rpm (revo-
lutions per minute). It is located on the input side of the automatic B
transaxle. The vehicle speed sensor A/T (Revolution sensor) is
located on the output side of the automatic transaxle. With the two
sensors, input and output rpms are accurately detected. The result is
optimal shift timing during deceleration and improved shifting. AT

LCIA0076E

E
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)

: TURBINE REV ● Harness or connectors F

TCM does not receive the proper voltage (The sensor circuit is open or shorted.)
signal from the sensor.
: 10th judgement flicker ● Turbine revolution sensor

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE G

CAUTION:
● Always drive vehicle at a safe speed.
H
● If conducting this “DTC CONFIRMATION PROCEDURE”
again, always turn ignition switch “OFF” and wait at least 5
seconds before continuing.
After the repair, perform the following procedure to confirm the mal- I
function is eliminated.
WITH CONSULT-II
J
1. Start engine.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
BCIA0030E
3. Drive vehicle under the following conditions: K
Selector lever in D, vehicle speed higher than 40 km/h (25
MPH), engine speed higher than 1,500 rpm, throttle opening
greater than 1.0/8 of the full throttle position and driving for more
than 5 seconds. L

WITHOUT CONSULT-II
1. Start engine. M
2. Drive vehicle under the following conditions:
Selector lever in “D” and vehicle speed higher than 40 km/h (25
MPH), engine speed higher than 1,500 rpm, throttle opening
greater than 1/8 of the full throttle position and driving for more BCIA0031E
than 5 seconds.
3. Perform self-diagnosis.
Refer to AT-60, "TCM SELF-DIAGNOSTIC PROCEDURE (NO
TOOLS)" .

LCIA0096E

Revision: November 2006 AT-205 2006 Altima

 DTC TURBINE REVOLUTION SENSOR
[RE4F04B]
Wiring Diagram — AT — TRSA/T ECS0099J

BCWA0149E

Revision: November 2006 AT-206 2006 Altima

 DTC TURBINE REVOLUTION SENSOR
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (DC) A
WHEN MOVING AT 20 KM/H (12
MPH), USE THE CONSULT-II
PULSE FREQUENCY MEASUR-
B
ING FUNCTION.*1
CAUTION:
TURBINE REVOLUTION SEN- CONNECT THE DIAGNOSIS 240 Hz
38 G DATA LINK CABLE TO THE AT
SOR (SIGNAL)
VEHICLE DIAGNOSIS CONNEC-
TOR.
*1: A CIRCUIT TESTER CANNOT
BE USED TO TEST THIS ITEM. D
WHEN VEHICLE IS PARKED. UNDER 1.3V OR OVER 4.5V
42 B SENSOR GROUND — —
E
Diagnostic Procedure ECS0099K

F
1. CHECK INPUT SIGNAL
With CONSULT-II G
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “TURBINE REV” while driving. H
Check the value changes according to driving speed.

K
SAT740J

Without CONSULT-II L
1. Start engine.
2. Check frequency between TCM terminal 38 and ground.
Frequency : Approximately 240 Hz when driving M
20 km/h (12 MPH)
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

WCIA0108E

2. DETECT MALFUNCTIONING ITEM

Check harness for short or open between TCM and turbine revolution sensor.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-207 2006 Altima

 DTC TURBINE REVOLUTION SENSOR
[RE4F04B]
3. CHECK DTC
Perform AT-205, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE" .
OK or NG
OK >> INSPECTION END.
NG >> GO TO 4.

4. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminal for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END.
NG >> Repair or replace damaged parts.
Component Inspection ECS0099L

TURBINE REVOLUTION SENSOR

● Check resistance between terminals 1, 2 and 3.
Terminal No. Resistance (Approx.)
1 2 No continuity
1 3 No continuity
2 3 2.4 - 2.8 kΩ

LCIA0077E

Revision: November 2006 AT-208 2006 Altima

 DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
[RE4F04B]
DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM) PFP:31036
A
Description ECS0099M

The TCM consists of a microcomputer and connectors for signal

input and output and for power supply. The unit controls the A/T. B

AT

SAT574J

E
On Board Diagnosis Logic ECS0099N

Diagnostic trouble code CONTROL UNIT (RAM), CONTROL UNIT (ROM) with CONSULT-II is detected when
TCM memory (RAM) or (ROM). F
Possible Cause ECS0099O

Check TCM.
G
Diagnostic Trouble Code (DTC) Confirmation Procedure ECS0099P

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and H
wait at least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for I
A/T with CONSULT-II.
2. Start engine.
J

L
BCIA0030E

3. Run engine for at least 2 seconds at idle speed.

M

BCIA0031E

Revision: November 2006 AT-209 2006 Altima

 DTC CONTROL UNIT (RAM), CONTROL UNIT (ROM)
[RE4F04B]
Diagnostic Procedure ECS0099Q

1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Touch “ERASE”.
3. Perform AT-209, "Diagnostic Trouble Code (DTC) Confirmation Procedure" .
4. Is the “CONTROL UNIT (RAM)” or “CONTROL UNIT (ROM)” displayed again?
Yes or No
Yes >> Replace TCM.
No >> INSPECTION END

Revision: November 2006 AT-210 2006 Altima

 DTC CONTROL UNIT (EEP ROM)
[RE4F04B]
DTC CONTROL UNIT (EEP ROM) PFP:31036
A
Description ECS0099R

The TCM consists of a microcomputer and connectors for signal

input and output and for power supply. The unit controls the A/T. B

AT

SAT574J

E
ON BOARD DIAGNOSIS LOGIC
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
TCM memory (EEP ROM) is malfunction- F
: CONT UNIT (EEP ROM) ● TCM
ing.

DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE

NOTE: G
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the H
next test.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for I
A/T with CONSULT-II.
2. Start engine.
J
BCIA0030E

3. Run engine for at least 2 seconds at idle speed. K

BCIA0031E

Revision: November 2006 AT-211 2006 Altima

 DTC CONTROL UNIT (EEP ROM)
[RE4F04B]
Diagnostic Procedure ECS0099S

1. CHECK DTC
With CONSULT-II
1. Turn ignition switch “ON” and select “SELF DIAGNOSIS” mode for A/T with CONSULT-II.
2. Move selector lever to “R” position.
3. Depress accelerator pedal (Full throttle position).
4. Touch “ERASE”.
5. Turn ignition switch “OFF” position for 10 seconds.
Perform AT-211, "DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE" .
Is the “CONT UNIT (EEP ROM)” displayed again?
Yes >> Replace TCM.
No >> INSPECTION END

Revision: November 2006 AT-212 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
TROUBLE DIAGNOSIS FOR SYMPTOMS PFP:00007
A
Wiring Diagram — AT — NONDTC ECS0099T

AT

BCWA0472E

Revision: November 2006 AT-213 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
IGNITION ON AND SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN 1 POSITION
26 PU/W
1 POSITION IGNITION ON AND SELECTOR
0V
LEVER IN OTHER POSITIONS
IGNITION ON AND SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN 2 POSITION
27 P/B
2 POSITION IGNITION ON AND SELECTOR
0V
LEVER IN OTHER POSITIONS
IGNITION ON AND SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN D POSITION
34 G
D POSITION IGNITION ON AND SELECTOR
0V
LEVER IN OTHER POSITIONS
IGNITION ON AND SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN R POSITION
35 G/W
R POSITION IGNITION ON AND SELECTOR
0V
LEVER IN OTHER POSITIONS
IGNITION ON AND SELECTOR
BATTERY VOLTAGE
PNP SWITCH LEVER IN P OR N POSITION
36 R/B
P OR N POSITION IGNITION ON AND SELECTOR
0V
LEVER IN OTHER POSITIONS

Revision: November 2006 AT-214 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]

AT

BCWA0473E

Revision: November 2006 AT-215 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
TCM TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND 25 OR 48 (TCM GROUND)
TERMINAL WIRE COLOR ITEM CONDITION DATA (APPROX.)
30 BR/Y DATA LINK CONNECTOR — —
31 LG DATA LINK CONNECTOR — —

Revision: November 2006 AT-216 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
1. A/T Check (Position) Indicator Lamp Does Not Come On ECS0099U

A
SYMPTOM:
A/T check (position) indicator lamp does not come on for about 2 seconds when turning ignition
switch to ON.
B

1. CHECK TCM POWER SOURCE

AT
1. Turn ignition switch to ON position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, and 28 and
ground. D

Voltage : Battery voltage

OK or NG E
OK >> GO TO 2.
NG >> GO TO 3.
F

LCIA0094E
G
2. CHECK POWER SOURCE STEP 2
1. Turn ignition switch to OFF position. H
2. Check voltage between TCM terminal 28 and ground.
Voltage : Battery voltage
I
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
J

K
WCIA0095E

3. DETECT MALFUNCTIONING ITEM L

Check the following items:
● Harness for short or open between ignition switch and TCM (Main harness)
Refer to AT-107, "Wiring Diagram — AT — MAIN" . M
● Ignition switch and fuse
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-217 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch to OFF position.
2. Disconnect TCM harness connector.
3. Check continuity between TCM harness connector terminals 25,
48 and ground.
Continuity should exist.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. Refer to AT-107, "Wiring Dia-
gram — AT — MAIN" .

SAT515J

5. DETECT MALFUNCTIONING ITEM

Check the following items:
● Harness and fuse for short or open between ignition switch and A/T check (position) indicator lamp (Main
harness)
Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
● Harness for short or open between A/T check (position) indicator lamp and TCM
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

7. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-218 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
2. Engine Cannot Be Started In P and N Position ECS0099V

A
SYMPTOM:
● Engine cannot be started with selector lever in P or N position.
● Engine can be started with selector lever in D, 2, 1 or R position. B

1. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT AT

With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir-
cuit? D
Without CONSULT-II
Does self-diagnosis show damage to park/neutral position (PNP)
switch circuit? E
Yes or No
Yes >> Check park/neutral position (PNP) switch circuit. Refer
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION F
SWITCH" .
No >> GO TO 2.
G

WCIA0059E

H
2. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH
Check for short or open of park/neutral position (PNP) switch harness connector terminals 1 and 2. Refer to
SC-14, "DIAGNOSTIC PROCEDURE 2" . I
OK or NG
OK >> GO TO 3.
J
NG >> Repair or replace park/neutral position (PNP) switch.

3. CHECK STARTING SYSTEM

K
Check starting system. Refer to SC-11, "WORK FLOW" .
OK or NG
OK >> INSPECTION END L
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-219 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
3. In P Position, Vehicle Moves Forward or Backward When Pushed ECS0099W

SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in P position.

1. CHECK PARKING COMPONENTS

Check parking components. Refer to AT-278, "OVERHAUL" and AT-
283, "DISASSEMBLY" .
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

SAT282F

Revision: November 2006 AT-220 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. In N Position, Vehicle Moves ECS0099X

A
SYMPTOM:
Vehicle moves forward or backward when selecting N position.

B
1. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT
With CONSULT-II AT
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir-
cuit?
Without CONSULT-II D
Does self-diagnosis show damage to park/neutral position (PNP)
switch circuit?
Yes or No E
Yes >> Check park/neutral position (PNP) switch circuit. Refer
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
F
No >> GO TO 2.

G
WCIA0059E

2. CHECK CONTROL LINKAGE H

Check control cable. Refer to AT-266, "Control Cable" .
OK or NG
OK >> GO TO 4. I
NG >> GO TO 3.

3. ADJUST CONTROL CABLE J

Adjust control cable.

K
>> Refer to AT-270, "Control Cable Adjustment" .

SCIA3156E

4. CHECK A/T FLUID LEVEL

Check A/T fluid level again.
OK or NG
OK >> GO TO 5.
NG >> Refill ATF.

SAT638A

Revision: November 2006 AT-221 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.

SAT171B

6. DETECT MALFUNCTIONING ITEM

1. Disassemble A/T.
2. Check the following items:
– Forward clutch assembly
– Overrun clutch assembly
– Reverse clutch assembly
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

7. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

8. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-222 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. Large Shock. N → R Position ECS0099Y

A
SYMPTOM:
There is large shock when changing from N to R position.

B
1. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to A/T fluid temperature sensor, AT
line pressure solenoid valve or throttle position sensor [accelerator
pedal position (APP) sensor] circuit?
Yes or No
D
Yes >> GO TO 2.
No >> GO TO 3.
E

WCIA0060E
F
2. CHECK DAMAGED CIRCUIT
Check damaged circuit. G

>> Refer to AT-116, "DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" , AT-166, "DTC
P0745 LINE PRESSURE SOLENOID VALVE" or AT-182, "DTC P1705 THROTTLE POSITION H
SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]" .

3. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] I

Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" . J
OK or NG
OK >> GO TO 4.
NG >> Repair or replace throttle position sensor [accelerator K
pedal position (APP) sensor].

L
LCIA0067E

4. CHECK LINE PRESSURE M

Check line pressure at idle with selector lever in D position. Refer to

AT-77, "Line Pressure Test" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

SAT494G

Revision: November 2006 AT-223 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.

7. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-224 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
6. Vehicle Does Not Creep Backward In R Position ECS0099Z

A
SYMPTOM:
Vehicle does not creep backward when selecting R position.

B
1. CHECK A/T FLUID LEVEL
Check A/T fluid level again. AT
OK or NG
OK >> GO TO 2.
NG >> Refill ATF. D

SAT638A
F
2. CHECK STALL REVOLUTION
Check stall revolution with selector lever in 1 and R positions. G
OK or NG
OK >> GO TO 5.
OK in 1 position, NG in R position>> GO TO 3. H
NG in both 1 and R positions>> GO TO 4.

SAT493G
J

3. DETECT MALFUNCTIONING ITEM

K
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil- L
ter)
– Line pressure solenoid valve
3. Disassemble A/T. M
4. Check the following items:
– Oil pump assembly
– Torque converter
– Reverse clutch assembly
– High clutch assembly
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-225 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
– Oil pump assembly
– Torque converter
– Reverse clutch assembly
– High clutch assembly
– Low & reverse brake assembly
– Low one-way clutch
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK LINE PRESSURE

Check line pressure at idle with selector lever in R position. Refer to
AT-77, "Line Pressure Test" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.

SAT494G

6. DETECT MALFUNCTIONING ITEM

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following item:
– Oil pump assembly
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-226 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
7. CHECK A/T FLUID CONDITION A
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG B
OK >> GO TO 9.
NG >> GO TO 8.
AT

SAT171B
E
8. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
F
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter) G
– Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items: H
– Oil pump assembly
– Torque converter
– Reverse clutch assembly I
– High clutch assembly
– Low & reverse brake assembly
J
– Low one-way clutch
OK or NG
OK >> GO TO 9. K
NG >> Repair or replace damaged parts.

9. CHECK SYMPTOM
L
Check again.
OK or NG
OK >> INSPECTION END M
NG >> GO TO 10.

10. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-227 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position ECS009A0

SYMPTOM:
Vehicle does not creep forward when selecting D, 3, 2 or 1 position.

1. CHECK A/T FLUID LEVEL

Check A/T fluid level again.
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

SAT638A

2. CHECK STALL REVOLUTION

Check stall revolution with selector lever in D position. Refer to AT-
74, "Stall Test" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

SAT493G

3. DETECT MALFUNCTIONING ITEM

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
– Oil pump assembly
– Forward clutch assembly
– Forward one-way clutch
– Low one-way clutch
– Low & reverse brake assembly
– Torque converter
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-228 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. CHECK LINE PRESSURE A
Check line pressure at idle with selector lever in D position. Refer to
AT-77, "Line Pressure Test" .
OK or NG B
OK >> GO TO 6.
NG >> GO TO 5.
AT

D
SAT494G

5. DETECT MALFUNCTIONING ITEM E

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
F
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve G
3. Disassemble A/T.
4. Check the following item:
– Oil pump assembly H
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts. I

6. CHECK A/T FLUID CONDITION

1. Remove oil pan. J
2. Check A/T fluid condition.
OK or NG
K
OK >> GO TO 8.
NG >> GO TO 7.
L

SAT171B

Revision: November 2006 AT-229 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
– Line pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
– Oil pump assembly
– Forward clutch assembly
– Forward one-way clutch
– Low one-way clutch
– Low & reverse brake assembly
– Torque converter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

8. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.

9. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-230 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
8. Vehicle Cannot Be Started From D1 ECS009A1

A
SYMPTOM:
Vehicle cannot be started from D1 on Cruise test — Part 1.

B
1. CHECK SYMPTOM
Is “6. Vehicle Does Not Creep Backward In R Position” OK? AT
Yes or No
Yes >> GO TO 2.
No >> Go to AT-225, "6. Vehicle Does Not Creep Backward In R Position" . D
2. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to vehicle speed sensor·A/T (rev- E
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?
Yes or No F
Yes >> Check damaged circuit. Refer to AT-122, "DTC P0720
VEHICLE SPEED SENSOR·A/T (REVOLUTION SEN-
SOR)" , AT-172, "DTC P0750 SHIFT SOLENOID VALVE G
A" , AT-177, "DTC P0755 SHIFT SOLENOID VALVE B"
or AT-201, "DTC VEHICLE SPEED SENSOR MTR" .
No >> GO TO 3.
WCIA0061E
H

3. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

I
Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG J
OK >> GO TO 4.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor]. K

L
LCIA0067E

4. CHECK LINE PRESSURE

M
Check line pressure at stall point with selector lever in D position.
Refer to AT-77, "Line Pressure Test" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

SAT494G

Revision: November 2006 AT-231 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift valve A
– Shift valve B
– Shift solenoid valve A
– Shift solenoid valve B
– Pilot valve
– Pilot filter
3. Disassemble A/T.
4. Check the following items:
– Forward clutch assembly
– Forward one-way clutch
– Low one-way clutch
– High clutch assembly
– Torque converter
– Oil pump assembly
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

6. CHECK A/T FLUID CONDITION

1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.

SAT171B

7. DETECT MALFUNCTIONING ITEM

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift valve A
– Shift valve B
– Shift solenoid valve A
– Shift solenoid valve B
– Pilot valve
– Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damage parts.

Revision: November 2006 AT-232 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
8. CHECK SYMPTOM A
Check again.
OK or NG
OK >> INSPECTION END B
NG >> GO TO 9.

9. CHECK TCM INSPECTION AT

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
D
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts. E

Revision: November 2006 AT-233 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
9. A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2 ECS009A2

SYMPTOM:
A/T does not shift from D1 to D2 at the specified speed.
A/T does not shift from D4 to D2 when depressing accelerator pedal fully at the specified speed.

1. CHECK SYMPTOM
Are “7. Vehicle Does Not Creep Forward In D, 3, 2 Or 1 Position” and “8. Vehicle Cannot Be Started From D1 ”
OK?
Yes or No
Yes >> GO TO 2.
No >> Go to AT-228, "7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position" and AT-231, "8. Vehi-
cle Cannot Be Started From D1" .

2. CHECK SELF-DIAGNOSTIC RESULTS

With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir-
cuit?
Without CONSULT-II
Does self-diagnosis show damage to park/neutral position (PNP)
switch circuit?
Yes or No
Yes >> Check park/neutral position (PNP) switch circuit. Refer
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
No >> GO TO 3.

WCIA0059E

3. CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT

Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-122,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and AT-201, "DTC VEHICLE
SPEED SENSOR MTR" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.

4. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor].

LCIA0067E

Revision: November 2006 AT-234 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. CHECK A/T FLUID CONDITION A
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG B
OK >> GO TO 7.
NG >> GO TO 6.
AT

SAT171B
E
6. DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-267, "Control Valve Assembly and Accumulators" .
F
2. Check the following items:
– Shift valve A
– Shift solenoid valve A G
– Pilot valve
– Pilot filter
3. Disassemble A/T. H
4. Check the following items:
– Servo piston assembly
I
– Brake band
– Oil pump assembly
OK or NG J
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

7. DETECT MALFUNCTIONING ITEM K

1. Remove control valve. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items: L
– Shift valve A
– Shift solenoid valve A
– Pilot valve M
– Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

8. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.

Revision: November 2006 AT-235 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
9. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-236 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
10. A/T Does Not Shift: D2 → D3 ECS009A3

A
SYMPTOM:
A/T does not shift from D2 to D3 at the specified speed.

B
1. CHECK SYMPTOM
Are 7. Vehicle Does Not Creep Forward In D, 3, 2 or 1 Position and 8. Vehicle Cannot Be Started From D1 AT
OK?
Yes or No
Yes >> GO TO 2. D
No >> Go to AT-228, "7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position" and AT-231, "8. Vehi-
cle Cannot Be Started From D1" .

2. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT E

With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir- F
cuit?
Without CONSULT-II
Does self-diagnosis show damage to park/neutral position (PNP) G
switch circuit?
Yes or No
Yes >> Check park/neutral position (PNP) switch circuit. Refer H
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
No >> GO TO 3.
I

WCIA0059E J

3. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

Check throttle position sensor [accelerator pedal position (APP) sen- K
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG L
OK >> GO TO 4.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor]. M

LCIA0067E

Revision: November 2006 AT-237 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

SAT171B

5. DETECT MALFUNCTIONING ITEM

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift valve B
– Shift solenoid valve B
– Pilot valve
– Pilot filter
3. Disassemble A/T.
4. Check the following items:
– Servo piston assembly
– High clutch assembly
– Oil pump assembly
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

6. DETECT MALFUNCTIONING ITEM

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift valve B
– Shift solenoid valve B
– Pilot valve
– Pilot filter
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

7. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-238 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
8. CHECK TCM INSPECTION A
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG B
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
AT

Revision: November 2006 AT-239 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
11. A/T Does Not Shift: D3 → D4 ECS009A4

SYMPTOM:
● A/T does not shift from D3 to D4 at the specified speed.
● A/T must be warm before D3 to D4 shift will occur.

1. CHECK SYMPTOM
Are “7. Vehicle Does Not Creep Forward In D, 3, 2 or 1 Position” and “8. Vehicle Cannot Be Started From D1 ”
OK?
Yes or No
Yes >> GO TO 2.
No >> Go to AT-228, "7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position" and AT-231, "8. Vehi-
cle Cannot Be Started From D1" .

2. CHECK SELF-DIAGNOSTIC RESULTS

With CONSULT-II
Does self-diagnosis, after cruise test, show damage to any of the fol-
lowing circuits?
● Park/neutral position (PNP) switch
● Overdrive control switch
● A/T fluid temperature sensor
● Vehicle speed sensor·A/T (revolution sensor)
● Shift solenoid valve A or B

WCIA0059E

● Vehicle speed sensor·MTR

Yes or No
Yes >> Check damaged circuit. Refer to AT-110, "DTC P0705
PARK/NEUTRAL POSITION SWITCH" , AT-116, "DTC
P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT"
, AT-122, "DTC P0720 VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)" , AT-172, "DTC P0750
SHIFT SOLENOID VALVE A" , AT-177, "DTC P0755
SHIFT SOLENOID VALVE B" or AT-201, "DTC VEHI-
CLE SPEED SENSOR MTR" .
No >> GO TO 3. WCIA0062E

3. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor].

LCIA0067E

Revision: November 2006 AT-240 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. CHECK A/T FLUID CONDITION A
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG B
OK >> GO TO 6.
NG >> GO TO 5.
AT

SAT171B
E
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
F
2. Check the following items:
– Shift valve B
– Overrun clutch control valve G
– Shift solenoid valve B
– Pilot valve
– Pilot filter H
3. Disassemble A/T.
4. Check the following items:
I
– Servo piston assembly
– Brake band
– Torque converter J
– Oil pump assembly
OK or NG
OK >> GO TO 7. K
NG >> Repair or replace damaged parts.

6. DETECT MALFUNCTIONING ITEM L

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Shift valve B M
– Overrun clutch control valve
– Shift solenoid valve B
– Pilot valve
– Pilot filter
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

7. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-241 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
8. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-242 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
12. A/T Does Not Perform Lock-up ECS009A5

A
SYMPTOM:
A/T does not perform lock-up at the specified speed.

B
1. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to torque converter clutch sole- AT
noid valve circuit after cruise test?
Yes or No
Yes >> Check torque converter clutch solenoid valve circuit. D
Refer to AT-153, "DTC P0740 TORQUE CONVERTER
CLUTCH SOLENOID VALVE" .
No >> GO TO 2.
E

WCIA0063E
F
2. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]
Check throttle position sensor [accelerator pedal position (APP) sen- G
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG H
OK >> GO TO 3.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor]. I

LCIA0067E
J

3. DETECT MALFUNCTIONING ITEM

K
1. Remove control valve. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check following items:
– Torque converter clutch control valve L
– Torque converter relief valve
– Torque converter clutch solenoid valve
– Pilot valve M
– Pilot filter
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

Revision: November 2006 AT-243 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
5. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-244 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
13. A/T Does Not Hold Lock-up Condition ECS009A6

A
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.

B
1. CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to engine speed signal circuit AT
after cruise test?
Yes or No
Yes >> Check engine speed signal circuit. Refer to AT-127, D
"DTC P0725 ENGINE SPEED SIGNAL" .
No >> GO TO 2.
E

WCIA0064E
F
2. CHECK A/T FLUID CONDITION
1. Remove oil pan. G
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 4. H
NG >> GO TO 3.

J
SAT171B

3. DETECT MALFUNCTIONING ITEM K

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items: L
– Torque converter clutch control valve
– Pilot valve
– Pilot filter M
3. Disassemble A/T.
4. Check torque converter and oil pump assembly.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-245 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Torque converter clutch control valve
– Pilot valve
– Pilot filter
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.

6. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-246 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
14. Lock-up Is Not Released ECS009A7

A
SYMPTOM:
Lock-up is not released when accelerator pedal is released.

B
1. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR] CIR-
CUIT
AT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to throttle position sensor [accelerator
pedal position (APP) sensor] circuit?
D
Without CONSULT-II
Does self-diagnosis show damage to throttle position sensor [accel-
erator pedal position (APP) sensor] circuit?
E
Yes or No
Yes >> Check throttle position sensor [accelerator pedal posi-
tion (APP) sensor]. Refer to EC-206, "DTC P0122,
F
P0123 TP SENSOR" and EC-521, "DTC P2122, P2123
APP SENSOR" .
No >> GO TO 2.
G

LCIA0078E

2. CHECK SYMPTOM H

Check again.
OK or NG I
OK >> INSPECTION END
NG >> GO TO 3.
J
3. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
K
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END L
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-247 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
15. Engine Speed Does Not Return To Idle (Light Braking D4 → D3 ) ECS009A8

SYMPTOM:
● Engine speed does not smoothly return to idle when A/T shifts from D4 to D3 .
● Vehicle does not decelerate by engine brake when A/T selector lever is in 3 position.
● Vehicle does not decelerate by engine brake when shifting A/T from D to 2 position.

1. CHECK SELF-DIAGNOSTIC RESULTS

Does self-diagnosis show damage to overrun clutch solenoid valve
circuit after cruise test?
Yes or No
Yes >> Check overrun clutch solenoid valve circuit. Refer to AT-
185, "DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE" .
No >> GO TO 2.

WCIA0065E

2. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

Check throttle position sensor [accelerator pedal position (APP) sen-
sor]. Refer to EC-206, "DTC P0122, P0123 TP SENSOR" and EC-
521, "DTC P2122, P2123 APP SENSOR" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace throttle position sensor [accelerator
pedal position (APP) sensor].

LCIA0067E

3. CHECK A/T FLUID CONDITION

1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.

SAT171B

Revision: November 2006 AT-248 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. DETECT MALFUNCTIONING ITEM A
1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
– Overrun clutch control valve B
– Overrun clutch reducing valve
– Overrun clutch solenoid valve
AT
3. Disassemble A/T.
4. Check the following items:
– Overrun clutch assembly D
– Oil pump assembly
OK or NG
OK >> GO TO 6. E
NG >> Repair or replace damaged parts.

5. DETECT MALFUNCTIONING ITEM F

1. Remove control valve assembly. Refer to AT-267, "Control Valve Assembly and Accumulators" .
2. Check the following items:
G
– Overrun clutch control valve
– Overrun clutch reducing valve
– Overrun clutch solenoid valve H
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts. I
6. CHECK SYMPTOM
Check again. J
OK or NG
OK >> INSPECTION END
NG >> GO TO 7. K

7. CHECK TCM INSPECTION

L
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG M
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-249 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
16. Vehicle Does Not Start From D1 ECS009A9

SYMPTOM:
Vehicle does not start from D1 on Cruise test — Part 2.

1. CHECK SELF-DIAGNOSTIC RESULTS

Does self-diagnosis show damage to vehicle speed sensor·A/T (rev-
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?
Yes or No
Yes >> Check damaged circuit. Refer to AT-122, "DTC P0720
VEHICLE SPEED SENSOR·A/T (REVOLUTION SEN-
SOR)" , AT-172, "DTC P0750 SHIFT SOLENOID VALVE
A" , AT-177, "DTC P0755 SHIFT SOLENOID VALVE B"
or AT-201, "DTC VEHICLE SPEED SENSOR MTR" .
No >> GO TO 2.
WCIA0061E

2. CHECK SYMPTOM
Check again.
OK or NG
OK >> Go to AT-231, "8. Vehicle Cannot Be Started From D1" .
NG >> GO TO 3.

3. CHECK TCM INSPECTION

1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-250 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
17. A/T Does Not Shift: D4 → 33 , When A/T Selector Lever D → 3 ECS009AA

A
SYMPTOM:
A/T does not shift from D4 to 33 when changing A/T selector lever from D → 3 position.

B
1. CHECK 3 POSITION SWITCH CIRCUIT
With CONSULT-II AT
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to 3 position switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to 3 position switch circuit? D
Yes or No
Yes >> Check 3 position switch circuit. Refer to AT-110, "DTC
P0705 PARK/NEUTRAL POSITION SWITCH" . E
No >> Go to AT-237, "10. A/T Does Not Shift: D2 → D3" .

WCIA0059E G

Revision: November 2006 AT-251 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
18. A/T Does Not Shift: 33 → 22 , When Selector Lever 3 → 2 Position ECS009AB

SYMPTOM:
A/T does not shift from 33 to 22 when changing selector lever from 3 to 2 position.

1. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT

With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir-
cuit?
Without CONSULT-II
Does self-diagnosis show damage to park/neutral position (PNP)
switch circuit?
Yes or No
Yes >> Check park/neutral position (PNP) switch circuit. Refer
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
No >> Go to AT-234, "9. A/T Does Not Shift: D1 → D2 or Does
Not Kickdown: D4 → D2" .

WCIA0059E

Revision: November 2006 AT-252 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
19. A/T Does Not Shift: 22 → 11 , When Selector Lever 2 → 1 Position ECS009AC

A
SYMPTOM:
A/T does not shift from 22 to 11 when changing selector lever from 2 to 1 position.

B
1. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT
With CONSULT-II AT
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to park/neutral position (PNP) switch cir-
cuit?
Without CONSULT-II D
Does self-diagnosis show damage to park/neutral position (PNP)
switch circuit?
Yes or No E
Yes >> Check park/neutral position (PNP) switch circuit. Refer
to AT-110, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
F
No >> GO TO 2.

G
WCIA0059E

2. CHECK SYMPTOM H
Check again.
OK or NG
OK >> INSPECTION END I
NG >> GO TO 3.

K
LCIA0073E

3. CHECK TCM INSPECTION L

1. Perform TCM input/output signal inspection.

2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. M
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-253 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
20. Vehicle Does Not Decelerate By Engine Brake ECS009AD

SYMPTOM:
Vehicle does not decelerate by engine brake when shifting from 22 (12 ) to 11 .

1. CHECK SYMPTOM
Is “6. Vehicle Does Not Creep Backward In R Position” OK?
Yes or No
Yes >> Go to AT-248, "15. Engine Speed Does Not Return To Idle (Light Braking D4 → D3 )" .
No >> Go to AT-225, "6. Vehicle Does Not Creep Backward In R Position" .
21. TCM Self-diagnosis Does Not Activate (PNP & 3 Position Switches Circuit
Checks), and Throttle Position Sensor [Accelerator Pedal Position (APP) Sen-
sor] Circuit Check ECS009AE

SYMPTOM:
A/T check (position) indicator lamp does not come on in TCM
self-diagnostic procedure even if the lamp circuit is good.

WCIA0066E

LCIA0079E

LCIA0067E

DESCRIPTION
● Park/neutral position (PNP) switch
The park/neutral (PNP) switch assembly includes a transaxle range switch. The transaxle range switch
detects the selector lever position and sends a signal to the TCM.
● 3 position switch

Revision: November 2006 AT-254 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
Detects the A/T selector lever in 3 position and sends a signal to the TCM.
● Throttle position sensor [accelerator pedal position (APP) sensor] A
The throttle position sensor [accelerator pedal position (APP) sensor] is part of the system that controls
the throttle position. This system also uses an electric throttle control actuator, which consists of a throttle
control motor and throttle position sensors. Accelerator pedal position signal is sent to the ECM. B

AT

Revision: November 2006 AT-255 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
DIAGNOSTIC PROCEDURE
NOTE:
The diagnostic procedure includes inspection for the 3 position switch circuit.

1. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT (WITH CONSULT-II)

With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out P/N, R, D, 2 and 1 position switches moving selector lever to each position.
Check that the signal of the selector lever position is indicated
properly.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.

SAT701J

2. DETECT MALFUNCTIONING ITEM

Check the following items:
● Park/neutral position (PNP) switch
– Check continuity between park/neutral position (PNP) switch
F29 terminals 1 and 2 and between terminals 3 and 4, 5, 6, 7, 8
and 9 while moving manual shaft through each position.
Lever position Terminal No.
P 3-7 1-2
R 3-8
N 3-9 1-2
D 3-6
2 3-5 WCIA0459E

1 3-4
– If NG, check again with manual control cable disconnected from manual shaft of A/T assembly. Refer to
step a.
– If OK on step b, adjust manual control cable. Refer to AT-270, "Control Cable Adjustment" .
– If NG on step b, remove park/neutral position (PNP) switch from A/T and check continuity of park/neutral
position (PNP) switch terminals. Refer to step a.
– If OK on step d, adjust park/neutral position (PNP) switch. Refer to AT-269, "Park/Neutral Position (PNP)
Switch Adjustment" .
– If NG on step d, replace park/neutral position (PNP) switch.
● Harness for short or open between ignition switch and park/neutral position (PNP) switch (Main harness)
● Harness for short or open between park/neutral position (PNP) switch and TCM (Main harness)
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-256 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
3. CHECK PARK/NEUTRAL POSITION (PNP) SWITCH CIRCUIT (WITHOUT CONSULT-II) A
Without CONSULT-II
1. Turn ignition switch to ON position. (Do not start engine.)
B
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and
ground while moving selector lever through each position.
Terminal No. AT
Lever Position
36 35 34 27 26
P, N B 0 0 0 0
D
R 0 B 0 0 0
D 0 0 B 0 0
2 0 0 0 B 0 E
1 0 0 0 0 B

Volt- F
age:
B : Battery voltage
0 : 0V G
OK or NG
OK >> GO TO 6.
H
NG >> GO TO 4.

WCIA0461E

Revision: November 2006 AT-257 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
4. DETECT MALFUNCTIONING ITEM
Check the following items:
● Park/neutral position (PNP) switch
– Check continuity between park/neutral position (PNP) switch ter-
minals 1 and 2, and between terminals 3 and 4, 5, 6, 7, 8 and 9
while moving manual shaft through each position.
Lever position Terminal No.
P 3-7 1-2
R 3-8
N 3-9 1-2
D 3-6
2 3-5 WCIA0459E

1 3-4
– If NG, check again with manual control cable disconnected from manual shaft of A/T assembly. Refer to
step a.
– If OK on step b, adjust manual control cable. Refer to AT-270, "Control Cable Adjustment" .
– If NG on step b, remove park/neutral position (PNP) switch from A/T and check continuity of park/neutral
position (PNP) switch terminals. Refer to step a.
– If OK on step d, adjust park/neutral position (PNP) switch. Refer to AT-269, "Park/Neutral Position (PNP)
Switch Adjustment" .
– If NG on step d, replace park/neutral position (PNP) switch.
● Harness for short or open between ignition switch and park/neutral position (PNP) switch (Main harness)
● Harness for short or open between park/neutral position (PNP) switch and TCM (Main harness)
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK 3 POSITION SWITCH CIRCUIT (WITH CONSULT-II)

With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out “OVERDRIVE SW”.
Check the signal of the 3 position switch is indicated properly.
(Overdrive switch “ON” displayed on CONSULT-II means over-
drive “OFF”.)
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.

SAT645J

Revision: November 2006 AT-258 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE4F04B]
6. DETECT MALFUNCTIONING ITEM A
Check the following items:
● 3 position switch M34.
– Check for continuity between terminals 1 and 2 with selector B
lever in 3 position.
● Harness for short or open between meter and 3 position switch
(Main harness) AT
● Harness of ground circuit for 3 position switch (Main harness) for
short or open
OK or NG D
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
E
WCIA0464E

7. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]

F
● Perform throttle position sensor [accelerator pedal position (APP) sensor] inspection. Refer to AT-182,
"DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]" .
OK or NG G
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

8. CHECK TCM INSPECTION H

1. Perform TCM input/output inspection. Refer to AT-104, "TCM INSPECTION TABLE"

OK or NG I
OK >> INSPECTION END
NG >> Inspect TCM terminals and related wiring harnesses for damage or loose connections. Repair or
replace damaged parts. J

Revision: November 2006 AT-259 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE4F04B]
A/T SHIFT LOCK SYSTEM PFP:34950

Description ECS009AF

● The electrical key interlock mechanism also operates as a shift lock:

With the key switch turned to ON, the selector lever cannot be shifted from “P” (parking) to any other posi-
tion unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” to any other position.
The key cannot be removed unless the selector lever is placed in “P”.
● The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts Location ECS009AG

LCIA0082E

Revision: November 2006 AT-260 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE4F04B]
Wiring Diagram — SHIFT — ECS009AH

AT

BCWA0474E

Revision: November 2006 AT-261 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE4F04B]
Shift Lock Control Unit Reference Values ECS009AI

SHIFT LOCK HARNESS CONNECTOR TERMINAL LAYOUT

WCIA0465E

SHIFT LOCK CONTROL UNIT INSPECTION TABLE

Data are reference values.
Terminal No.
(Wire color) Item Condition Judgement standard
(+) (-)
1 (W) 8 (B) Power source Always Battery voltage
When selector lever is not in "P" position with key inserted Battery voltage
2 (L) 8 (B) Detent switch (key)
Except the above Approx. 0V

Detention switch When selector lever is not in "P" position Battery voltage
3 (L/W) 8 (B)
(for shift) When selector lever is in "P" position Approx. 0V
When brake pedal is depressed Battery voltage
4 (R/G) 8 (B) Stop lamp switch
When brake pedal is released Approx. 0V
Vehicle speed sig-
5 (P) 8 (B) — —
nal
Ignition switch: “ON” Battery voltage
6 (G) 8 (B) Ignition signal
Ignition switch: “OFF” Approx. 0V
When the brake pedal is depressed Battery voltage
7 (R/W) 8 (B) Shift lock solenoid Ignition switch: "ON" and vehicle speed is less than 8 km/
Approx. 0V
h (5 MPH)
8 (B) – Ground Always Approx. 0V
When the selector lever is set to a position other than the Battery voltage for approx.
9 (G/W) 8 (B) Key lock signal “P” position 0.1 sec. (Note)
Except the above Approx. 0V
Battery voltage for approx.
When the selector lever is set to the“ P” position
10 (W/G) 8 (B) Key unlock signal 0.1 sec. (Note)
Except the above Approx. 0V
NOTE:
Make sure that the pointer swings only momentarily because the output time is so short. If the inspection is done with an oscilloscope, it
should be observed that the power source voltage lasts for 3.5 to 10 ms.

Revision: November 2006 AT-262 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE4F04B]
Component Inspection ECS009AJ

SHIFT LOCK SOLENOID A

● Check operation by applying battery voltage to A/T device con-
nector.
CAUTION: B
Be sure to apply the voltage of the correct polarity to the
respective terminals. Otherwise, the part may be damaged.
Terminal No. AT
9 (Battery voltage) - 10 (Ground)

D
SCIA3117E

DETENT SWITCH E
For Key:
● Check continuity between terminals of the A/T device connector.
Terminal F
Condition Continuity
No.
When selector lever is not in "P" position with
Yes
key inserted. 5-6 G
Except the above No

SCIA3118E

DETENT SWITCH I
For Shift:
● Check continuity between terminals of the A/T device connector.
J
Terminal
Condition Continuity
No.
When selector lever is not in "P" position. Yes
13 - 14 K
Except the above No

WCIA0345E
M
KEY LOCK SOLENOID
Key Lock
● Check operation by applying battery voltage to key switch and
key lock solenoid connector.
CAUTION:
Be careful not to cause burnout of the harness.
Terminal No.
1 (Battery voltage) - 2 (Ground)

WCIA0455E

Revision: November 2006 AT-263 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE4F04B]
Key Unlock
● Check operation by applying battery voltage to key switch and
key lock solenoid connector.
CAUTION:
Be careful not to cause burnout of the harness.
Terminal No.
2 (Battery voltage) - 1 (Ground)

WCIA0456E

KEY SWITCH
● Check continuity between terminals of the key switch and key
lock solenoid connector.
Condition Terminal No. Continuity
Key inserted Yes
3-4
Key removed No

WCIA0457E

STOP LAMP SWITCH

● Check continuity between terminals of the stop lamp switch con-
nector.
Condition Terminal No. Continuity
When brake pedal is depressed Yes
1-2
When brake pedal is released No

Check stop lamp switch after adjusting brake pedal. Refer to BR-6,
"Inspection and Adjustment" .

WCIA0466E

Revision: November 2006 AT-264 2006 Altima

 SHIFT CONTROL SYSTEM
[RE4F04B]
SHIFT CONTROL SYSTEM PFP:34901
A
Control Device ECS009AK

AT

LCIA0084E

Revision: November 2006 AT-265 2006 Altima

 SHIFT CONTROL SYSTEM
[RE4F04B]
Control Cable ECS009AL

WCIA0711E

1. Cable clamp 2. Control cable 3. Lock plate

4. Control device

Revision: November 2006 AT-266 2006 Altima

 ON-VEHICLE SERVICE
[RE4F04B]
ON-VEHICLE SERVICE PFP:00000
A
Control Valve Assembly and Accumulators ECS009AM

REMOVAL
1. Drain ATF from transaxle.
B
2. Remove oil pan and gasket using power tools.
CAUTION:
Do not reuse oil pan bolts. AT

SAT031J
E
3. Disconnect terminal cord assembly harness connector.

H
WCIA0071E

4. Remove stopper ring from terminal cord assembly harness ter- I

minal body.
5. Remove terminal cord assembly harness from transaxle case by
pushing on terminal body. J

SAT995C
L

Revision: November 2006 AT-267 2006 Altima

 ON-VEHICLE SERVICE
[RE4F04B]
6. Remove control valve assembly by removing bolts I , X and ● .
Bolt length, number and location are shown in the illustration.
CAUTION:
Do not drop manual valve and servo release accumulator return
spring.
7. Disassemble and inspect control valve assembly if necessary.
Refer to AT-306, "Control Valve Assembly" .

SAT004F

8. Remove servo release and N-D accumulators by applying com-

pressed air if necessary.
NOTE:
Hold each piston with a rag.

AAT279

INSTALLATION
Installation is in the reverse order of removal.
● Set manual shaft in Neutral, then align manual plate with groove
in manual valve.
● After installing control valve assembly, make sure that selector
lever can be moved to all positions.

SAT091J

Revision: November 2006 AT-268 2006 Altima

 ON-VEHICLE SERVICE
[RE4F04B]
Revolution Sensor Replacement ECS009AN

A
1. Disconnect electrical connector.
2. Remove revolution sensor from A/T.
CAUTION:
B
Do not damage the revolution sensor or transaxle case.
3. Installation is in the reverse order of removal.
CAUTION: AT
Always use new sealing parts.

D
LCIA0070E

Turbine Revolution Sensor Replacement ECS009AO

1. Disconnect electrical connector. E

2. Remove bolt and turbine revolution sensor from A/T.
CAUTION:
Do not damage the turbine revolution sensor or transaxle F
case.
3. Installation is in the reverse order of removal.
CAUTION: G
Always use new sealing parts.

LCIA0076E
H

Park/Neutral Position (PNP) Switch Adjustment ECS009AP

1. Remove control cable from manual shaft. I

2. Set manual shaft in N position.

SCIA3156E L

3. Loosen park/neutral position (PNP) switch bolts.

4. Insert pin into adjustment holes in both PNP switch and manual M
shaft as near vertical as possible.
5. Installation is in the reverse order of removal.
6. Check continuity of PNP switch. Refer to AT-113, "Diagnostic
Procedure" .

SCIA3154E

Revision: November 2006 AT-269 2006 Altima

 ON-VEHICLE SERVICE
[RE4F04B]
Control Cable Adjustment ECS009AQ

Move selector lever from the P position to the 1 position. You should
be able to feel the detent in each position. If the detent cannot be felt
or the pointer indicating the position is improperly aligned, the control
cable needs adjustment.
1. Place selector lever in the P position.
CAUTION:
Turn wheels more than 1/4 turn and apply the parking brake.
2. Loosen control cable lock nut.
3. Secure the manual lever.
4. Push control cable in the direction of the arrow shown using SCIA3157E
specified force.
Specified force : 9.8 N (1.0 kg, 2.2 lb)
5. Tighten control cable lock nut.
6. Move selector lever from P to 1 position. Make sure that selector lever moves smoothly.
● Make sure that the starter operates when the selector lever is placed in the N or P position.

● Make sure that the transaxle is locked properly when the selector lever is placed in the P posi-
tion.
Differential Side Oil Seal Replacement ECS009AR

1. Remove drive shaft assembly. Refer to FAX-11, "FRONT DRIVE

SHAFT" .
2. Remove oil seals using Tool
Tool number : KV381054S0 (J-34286)
CAUTION:
Do not reuse oil seals.

SCIA5377E

3. Install new oil seals.

CAUTION:
● Do not reuse oil seals.

● Apply ATF to new oil seals.

SAT782

● Install new oil seals so dimension A is within specification

Dimension A : −0.5 mm (−0.02 in) to 0.5 mm (0.02 in)

AAT531A

Revision: November 2006 AT-270 2006 Altima

 ON-VEHICLE SERVICE
[RE4F04B]
4. Installation of the remaining components is in the reverse order of removal.
A

AT

Revision: November 2006 AT-271 2006 Altima

 AIR BREATHER HOSE
[RE4F04B]
AIR BREATHER HOSE PFP:31098

Air Breather Hose - Air Duct Side ECS009AS

REMOVAL AND INSTALLATION QR25DE MODELS

AIR BREATHER HOSE TO AIR DUCT SIDE

LCIA0357E

1. Air cleaner to electronic throttle con- 2. Air breather hose (air duct side) 3. Oil catch tank
trol actuator tube

Removal
1. Remove the air cleaner to electronic throttle control actuator tube. Refer to, EM-17, "REMOVAL" .
2. Remove the air breather hose from the oil catch tank.

Revision: November 2006 AT-272 2006 Altima

 AIR BREATHER HOSE
[RE4F04B]
Installation
Installation is in the reverse order of removal. A
CAUTION:
Do not to crush or kink the air breather hose during installation
NOTE: B
● Be sure paint mark A can be seen in the clip when installing the
air breather hose to the air cleaner to electronic throttle control
actuator tube. AT
● Be sure paint mark B is facing upwards and to the end of the
radius in the oil catch tank tube.
● Insert air breather hose into oil catch tank until it reaches the D
point where the winding radius stops.

LCIA0360E

Air Breather Hose - Transaxle Side ECS009AT

H
REMOVAL AND INSTALLATION (OIL CATCH TANK TO AIR DUCT)

WCIA0368E

1. Transaxle assembly 2. Starter motor 3. Left front side member

4. Oil catch tank 5. Air breather hose (transaxle side)

Removal
1. Remove the air cleaner to electronic throttle control actuator tube. Refer to, EM-17, "REMOVAL" .
Revision: November 2006 AT-273 2006 Altima
 AIR BREATHER HOSE
[RE4F04B]
2. Disconnect the air breather hose air cleaner to electronic throttle control actuator tube side and transaxle
side of the oil catch tank.
3. Remove the oil catch tank.
Installation
Installation is in the reverse order of removal.
CAUTION:
Do not crush or kink the air breather hose during installation.
NOTE:
● The paint marks must face upwards on installation.
● Insert air breather hose (transaxle side) B into tube stopper
when installing air breather hose to the oil catch tank.
● Insert air breather hose (transaxle side) A into the point where
the radius stops on the air breather hose when installing to the
transaxle.

WCIA0369E

Revision: November 2006 AT-274 2006 Altima

 REMOVAL AND INSTALLATION
[RE4F04B]
REMOVAL AND INSTALLATION PFP:00000
A
Removal ECS009AU

1. Remove battery and bracket.

2. Remove air cleaner assembly. Refer to EM-17, "Removal and Installation" . B
3. Disconnect terminal cord assembly harness connector and park/neutral position (PNP) switch harness
connectors.
4. Disconnect the following connectors: AT
● terminal cord assembly

● park/neutral position (PNP) switch

● revolution sensor
D
● vehicle speed sensor

● mass air flow sensor

E
● turbine revolution sensor

● ground

5. Remove LH mounting bracket from transaxle and body. F

6. Disconnect control cable at transaxle side.
7. Remove drive shafts. Refer to FAX-11, "FRONT DRIVE SHAFT"
. G
8. Drain ATF from transaxle. Refer to AT-398, "Changing A/T Fluid"
.
9. Remove push clips and engine undercover. H
10. Disconnect fluid cooler piping.
11. Remove starter motor from transaxle. Refer to SC-15, "Removal
and Installation" . LCIA0086E I
12. Support engine.
13. Remove upper transaxle to engine bolts.
14. Remove front suspension member. Refer to FSU-15, "Removal and Installation" . J
15. Remove rear cover plate and torque converter to drive plate
bolts.
NOTE: K
Rotate crankshaft for access to torque convertor bolts.

M
WCIA0069E

16. Support transaxle with a jack.

17. Remove lower transaxle to engine bolts.
18. Lower transaxle while supporting it with a jack.

Revision: November 2006 AT-275 2006 Altima

 REMOVAL AND INSTALLATION
[RE4F04B]
Inspection ECS009AV

● Check the drive plate runout as shown.

CAUTION:
Do not allow any magnetic materials to contact the ring
gear teeth.
If this runout is out of allowance, replace drive plate and ring gear.
Refer to AT-378, "SERVICE DATA AND SPECIFICATIONS (SDS)" .

SAT977H

Revision: November 2006 AT-276 2006 Altima

 REMOVAL AND INSTALLATION
[RE4F04B]
Installation ECS009AW

A
CAUTION:
● When replacing an engine or transmission you must make sure the dowels are installed correctly
during re-assembly.
● Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive B
train components.
1. When connecting torque converter to transaxle, measure dis-
tance “A” to be certain that they are correctly assembled. AT
Distance “A” : 14 mm (0.55 in) or more

SAT044A
F
2. Install torque converter bolts to drive plate.
NOTE:
With converter installed, rotate crankshaft several turns to check G
that transaxle rotates freely without binding.

I
WCIA0070E

3. Tighten transaxle to engine bolts. J

Bolt No. 1 2 3 4 5 6
Number of
4 1 1 2 2 1 K
bolts
Bolt length 40 40 30 45
49 (1.93) 45 (1.77)
″ ″ mm (in) (1.57) (1.57) (1.18) (1.77)
L
Tightening
75 35 75 35
torque N·m 43 (4.4, 32)
(7.7, 55) (3.3, 26) (7.7, 55) (3.6, 26)
(kg-m, ft-lb)
SCIA4358E
M
4. Installation of the remaining components is in the reverse order
of removal.
● Check fluid level in transaxle. Refer to AT-18, "Checking A/T
Fluid" .
● Move selector lever through all positions to be sure that tran-
saxle operates correctly.
With parking brake applied, run engine at idle. Move selector
lever through N to D, to 2, to 1 and to R position. A slight shock
should be felt through selector knob each time transaxle is
shifted.
● Perform road test. Refer to AT-78, "Road Test" .

SAT638A

Revision: November 2006 AT-277 2006 Altima

 OVERHAUL
[RE4F04B]
OVERHAUL PFP:00000

Components ECS009AX

WCIA0320E

Revision: November 2006 AT-278 2006 Altima

 OVERHAUL
[RE4F04B]

AT

WCIA0370E

Revision: November 2006 AT-279 2006 Altima

 OVERHAUL
[RE4F04B]

WCIA0708E

Revision: November 2006 AT-280 2006 Altima

 OVERHAUL
[RE4F04B]
Oil Channel ECS009AY

AT

SAT573K

Revision: November 2006 AT-281 2006 Altima

 OVERHAUL
[RE4F04B]
Locations of Adjusting Shims, Needle Bearings, Thrust Washers and Snap
Rings ECS009AZ

SCIA4972E

Revision: November 2006 AT-282 2006 Altima

 DISASSEMBLY
[RE4F04B]
DISASSEMBLY PFP:31020
A
Disassembly ECS009B0

1. Drain the ATF from the transaxle. Refer to AT-398, "Changing A/

T Fluid" . B
2. Remove torque converter.

AT

SAT008D

E
3. Check torque converter one-way clutch using check tool as
shown.
a. Insert check tool into the groove of bearing support built into
F
one-way clutch outer race.
b. When holding bearing support with check tool, rotate one- way
clutch spline using suitable tool.
G
c. Make sure that inner race rotates clockwise only. If not, replace
torque converter assembly.

SAT009D
L
4. Remove A/T fluid charging pipe and fluid cooler tube.

SAT768J

Revision: November 2006 AT-283 2006 Altima

 DISASSEMBLY
[RE4F04B]
5. Set manual shaft to position P.
6. Remove park/neutral position (PNP) switch.

SCIA3156E

7. Remove oil pan and oil pan gasket using power tools.
CAUTION:
Do not reuse oil pan bolts.
8. Check foreign materials in oil pan to help determine causes of
malfunction. If the fluid is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and can inhibit pump pressure.
CAUTION:
If frictional material is detected, follow A/T fluid cooler SAT003F

cleaning and inspection procedure after repair of the A/T.

Refer to AT-19, "A/T Fluid Cooler Cleaning" .

9. Remove control valve assembly according to the following pro-

cedures:
a. Remove control valve assembly bolts I , X and ● .

SAT004F

Revision: November 2006 AT-284 2006 Altima

 DISASSEMBLY
[RE4F04B]
b. Remove snap ring from terminal body.
A

AT

SCIA0800E

D
c. Push terminal body into transaxle case and draw out terminal
cord assembly.
E

G
SCIA0801E

10. Remove manual valve from control valve assembly. H

SAT005F K

11. Remove return spring from servo release accumulator piston.

L

SAT018DA

12. Remove servo release accumulator piston with compressed air.

13. Remove O-rings from servo release accumulator piston.
CAUTION:
Do not reuse O-rings.

SAT019DA

Revision: November 2006 AT-285 2006 Altima

 DISASSEMBLY
[RE4F04B]
14. Remove N-D accumulator piston and return spring with com-
pressed air.

SAT020D

15. Remove O-rings from N-D accumulator piston.

CAUTION:
Do not reuse O-rings.
16. Check accumulator pistons and contact surface of transaxle
case for damage.

SAT023DA

17. Check accumulator return springs for damage and free length.
18. Remove lip seals.
CAUTION:
Do not reuse lip seals.

SAT006F

19. Remove L & R oil tube and oil sleeve.

SAT862HA

Revision: November 2006 AT-286 2006 Altima

 DISASSEMBLY
[RE4F04B]
20. Remove converter housing according to the following proce-
dures: A
a. Remove converter housing bolts using power tools.
b. Remove converter housing by tapping it lightly.
B

AT

SAT008F

D
c. Remove O-ring from differential oil port.
CAUTION:
Do not reuse O-ring. E

G
SAT235F

21. Remove final drive assembly from transaxle case.

H

SAT228F
K
22. Remove differential side bearing outer race and side bearing
adjusting shim from transaxle case using Tool.
L
Tool number : KV381053S0 (J-34286)

SCIA5378E

23. Remove differential side bearing adjusting shim from transaxle

case.

SAT031D

Revision: November 2006 AT-287 2006 Altima

 DISASSEMBLY
[RE4F04B]
24. Remove differential side bearing outer race from converter
housing using Tool.
Tool number : KV381054S0 (J-34286)

SCIA5379E

25. Remove oil seal from converter housing using suitable tool.
CAUTION:
● Do not reuse oil seal.

● Be careful not to damage case.

SAT032D

26. Remove differential lubricant tube from converter housing.

SAT063K

27. Remove oil pump according to the following procedures:

a. Remove O-ring from input shaft.
CAUTION:
Do not reuse O-ring.

SAT225F

b. Remove oil pump assembly, baffle plate and gasket from tran-
saxle case.

SAT012F

Revision: November 2006 AT-288 2006 Altima

 DISASSEMBLY
[RE4F04B]
c. Remove thrust washer and bearing race from oil pump assem-
bly. A

AT

SAT013F

D
28. Remove brake band according to the following procedures:
a. Loosen lock nut, then back off anchor end pin using suitable
tool. E
CAUTION:
Do not reuse anchor end pin.
F

G
SAT014FA

b. Remove brake band and strut from transaxle case.

H

SAT196F
K

CAUTION:
To prevent brake linings from cracking or peeling, do not L
stretch the flexible band unnecessarily. When removing the
brake band, always secure it with a clip as shown.
NOTE:
Leave the clip in position after removing the brake band. M

SAT039D

Revision: November 2006 AT-289 2006 Altima

 DISASSEMBLY
[RE4F04B]
c. Check brake band facing for damage, cracks, wear or burns.

SAT040D

29. Remove input shaft assembly (high clutch) and reverse clutch
according to the following procedures:
a. Remove input shaft assembly (high clutch) with reverse clutch.

SAT549F

b. Remove input shaft assembly (high clutch) from reverse clutch.

SAT566F

c. Remove needle bearings from high clutch drum and check for
damage or wear.

SAT567F

d. Remove high clutch hub and front sun gear from transaxle case.

SAT568F

Revision: November 2006 AT-290 2006 Altima

 DISASSEMBLY
[RE4F04B]
e. Remove front sun gear and needle bearing from high clutch hub
and check for damage or wear. A
f. Remove bearing race from front sun gear and check for damage
or wear.
B

AT

SAT019F
D
30. Remove needle bearing from transaxle case and check for dam-
age or wear.
E

G
SAT020F

31. Apply compressed air and check to see that low and reverse H
brake operates.

SAT138F K

32. Remove low one-way clutch and front planetary carrier assem-
bly according to the following procedures:
L
a. Remove snap ring using suitable tool.

SAT046D

Revision: November 2006 AT-291 2006 Altima

 DISASSEMBLY
[RE4F04B]
b. Remove low one-way clutch with a suitable hook made of wire.

AAT889

c. Remove snap ring using suitable tool.

SAT022F

d. Remove front planetary carrier with low and reverse brake pis-
ton and retainer.

SAT023F

e. Remove low and reverse brake spring retainer.

CAUTION:
Do not remove return springs from spring retainer.

SAT148F

Revision: November 2006 AT-292 2006 Altima

 DISASSEMBLY
[RE4F04B]
f. Check that low one-way clutch rotates in the direction of the
clockwise arrow and locks in the opposite direction. A

AT

SAT048D

D
g. Remove needle bearing, low and reverse brake piston and
retainer from front planetary carrier.
h. Check front planetary carrier, low one-way clutch and needle E
bearing for damage or wear.

G
SAT024F

i. Check clearance between planetary gears and planetary carrier

H
with feeler gauge.
Standard clearance : 0.20 - 0.70 mm
(0.0079 - 0.0276 in) I
Allowable limit : 0.80 mm (0.0315 in)
Replace front planetary carrier if the clearance exceeds allow-
able limit. J

SAT025F
K
33. Remove rear planetary carrier assembly and rear sun gear
according to the following procedures:
a. Remove rear planetary carrier assembly from transaxle case. L

SAT026F

b. Remove rear sun gear from rear planetary carrier.

SAT027F

Revision: November 2006 AT-293 2006 Altima

 DISASSEMBLY
[RE4F04B]
c. Remove needle bearings from rear planetary carrier assembly.
d. Check rear planetary carrier, rear sun gear and needle bearings
for damage or wear.

SAT028F

e. Check clearance between pinion washer and rear planetary car-

rier with feeler gauge.
Standard clearance : 0.20 - 0.70 mm
(0.0079 - 0.0276 in)
Allowable limit : 0.80 mm (0.0315 in)
Replace rear planetary carrier if the clearance exceeds allow-
able limit.

SAT054D

34. Remove rear internal gear and forward clutch hub from tran-
saxle case.

SAT029F

35. Remove overrun clutch hub from transaxle case.

SAT030F

36. Remove needle bearing from overrun clutch hub and check for
damage or wear.

SAT031F

Revision: November 2006 AT-294 2006 Altima

 DISASSEMBLY
[RE4F04B]
37. Remove forward clutch assembly from transaxle case.
A

AT

SAT032F
D
38. Remove needle bearing from transaxle case.

G
SAT033F

39. Remove output shaft assembly according to the following proce- H

dures:
a. Remove side cover bolts.
CAUTION: I
● Do not mix bolts A and B.

● Do not reuse bolts A as they are self-sealing bolts.

AAT850 K

b. Remove side cover by lightly tapping it using suitable tool.

CAUTION: L
Do not drop output shaft assembly. It might come out when
removing side cover.

SAT434D

c. Remove adjusting shim.

SAT440D

Revision: November 2006 AT-295 2006 Altima

 DISASSEMBLY
[RE4F04B]
d. Remove output shaft assembly.

SAT035F

NOTE:
If output shaft assembly came off with side cover, tap cover to
separate using suitable tool.

SAT435D

e. Remove needle bearing.

SAT036F

40. Disassemble reduction pinion gear according to the following

procedures:
a. Set manual shaft to position P to fix idler gear.
b. Unlock idler gear lock nut using suitable tool.

SAT037F

Revision: November 2006 AT-296 2006 Altima

 DISASSEMBLY
[RE4F04B]
c. Remove idler gear lock nut using suitable tool.
CAUTION: A
Do not reuse idler gear lock nut.

AT

SAT061D

D
d. Remove idler gear using Tool.
Tool number : ST27180001 (J-25726-A)
E

G
SCIA5380E

e. Remove reduction pinion gear.

H
f. Remove adjusting shim from reduction pinion gear.

SAT916D
K
41. Remove return spring from parking shaft using suitable tool.
42. Draw out parking shaft and remove parking pawl from transaxle
case. L
43. Check parking pawl and shaft for damage or wear.

WCIA0330E

44. Remove parking actuator support from transaxle case.

45. Check parking actuator support for damage or wear.

SAT066D

Revision: November 2006 AT-297 2006 Altima

 DISASSEMBLY
[RE4F04B]
46. Remove side oil seal from transaxle case using suitable tool.
CAUTION:
Do not reuse oil seal.

SAT040F

Revision: November 2006 AT-298 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
REPAIR FOR COMPONENT PARTS PFP:00000
A
Manual Shaft ECS009B1

COMPONENTS
B

AT

G
WCIA0324E

REMOVAL
H
1. Remove detent spring from transaxle case.

K
SAT042F

2. Drive out manual plate retaining pin using Tool.

L
Tool number : ST23540000 (J-25689-A)

SCIA5381E

Revision: November 2006 AT-299 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
3. Drive and pull out parking rod plate retaining pin using Tool.
Tool number : ST23540000 (J-25689-A)
4. Remove parking rod plate from manual shaft.
5. Draw out parking rod from transaxle case using suitable tool.

SCIA5382E

6. Pull out manual shaft retaining pin using suitable tool.

7. Remove manual shaft and manual plate from transaxle case.

SAT049F

8. Remove manual shaft oil seal using suitable tool.

CAUTION:
● Do not reuse oil seal.

● Do not damage the transaxle case.

SAT080D

INSPECTION
● Check component parts for wear or damage. Replace if necessary.
INSTALLATION
1. Install new manual shaft oil seal using suitable tool.
CAUTION:
● Do not reuse oil seal.

● Apply ATF to the outer surface of new oil seal.

SAT081D

Revision: November 2006 AT-300 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Install manual shaft and manual plate.
A

AT

SCIA3287E

D
3. Align groove of manual shaft and hole of transaxle case using
Tool.
Tool number : ST25710000 (J-25689-A) E
4. Install manual shaft retaining pin up to bottom of hole using Tool.
Tool number : KV32101000 (J-25689-A) F

G
SCIA5383E

5. Install parking rod to parking rod plate.

H
6. Set parking rod assembly onto manual shaft and drive retaining
pin using Tool.
CAUTION:
● Do not reuse retaining pin.
I
● Both ends of pin should protrude.

SCIA5384E
K
7. Drive manual plate retaining pin using Tool.
Tool number : ST23540000 (J-25689-A)
L
CAUTION:
● Do not reuse retaining pin.

● Both ends of pin should protrude.

M

SCIA5385E

8. Install detent spring. Tighten detent spring bolts to the specified

torque. Refer to AT-278, "Components" .

SAT042F

Revision: November 2006 AT-301 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Oil Pump ECS009B2

COMPONENTS

SAT050FD

DISASSEMBLY
1. Remove seal rings.
CAUTION:
Do not reuse seal rings.

SAT699H

2. Loosen bolts in a crisscross pattern and remove oil pump cover.

SAT051F

3. Remove inner and outer gear from oil pump housing.

SAT092D

Revision: November 2006 AT-302 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
4. Remove O-ring from oil pump housing.
CAUTION: A
Do not reuse O-rings.

AT

SAT093D

D
5. Remove oil pump housing oil seal using suitable tool.
CAUTION:
Do not reuse oil seal. E

SAT094D H
INSPECTION
Oil Pump Housing, Oil Pump Cover, Inner Gear and Outer Gear
I
Check component parts for wear or damage. Replace if necessary.
Side Clearances
Measure side clearance of inner and outer gears in at least four J
places around each outside edge. Maximum measured values
should be within specified positions.
Standard clearance : 0.030 - 0.050 mm K
(0.0012 - 0.0020 in)
If clearance is less then specification, select inner and outer gear as
a set so that clearance is within specifications. L
Inner and outer gear:
Refer to AT-378, "SERVICE DATA AND SPECIFICA-
M
TIONS (SDS)" .
If clearance is more than standard, replace whole oil pump assembly
except oil pump cover.

SAT095D

Revision: November 2006 AT-303 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Measure clearance between outer gear and oil pump housing.
Standard clearance : 0.111 - 0.181 mm
(0.0044 - 0.0071 in)
Allowable limit : 0.181 mm (0.0071 in)
If not within allowable limit, replace whole oil pump assembly except
oil pump cover.

SAT096D

Seal Ring Clearance

Measure clearance between seal ring and ring groove.
Standard clearance : 0.1 - 0.25 mm (0.0039 - 0.0098 in)
Allowable limit : 0.25 mm (0.0098 in)
If not within allowable limit, replace oil pump cover assembly.

SAT097D

ASSEMBLY
1. Install new oil seal on oil pump housing using Tool.
Tool number : ST33400001 (J-26082)
CAUTION:
Do not reuse oil seal.

SCIA5386E

2. Install new O-ring on oil pump housing.

CAUTION:
● Do not reuse O-ring.

● Apply ATF to new O-ring.

SAT093D

Revision: November 2006 AT-304 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
3. Install inner and outer gears on oil pump housing as shown.
CAUTION: A
Take care with the direction of inner gear.

AT

SAT092D

D
4. Install oil pump cover on oil pump housing according to the fol-
lowing procedure:
a. Wrap masking tape around splines of oil pump cover assembly E
to protect seal. Position oil pump cover assembly on oil pump
housing assembly, then remove masking tape.
b. Tighten bolts in a crisscross pattern. Tighten oil pump cover
F
bolts to the specified torque. Refer to AT-302, "COMPONENTS"
.

G
SAT051F

5. Install new seal rings carefully after packing ring groove with
H
petroleum jelly.
CAUTION:
● Do not reuse seal rings.
I
● Apply petroleum jelly to new seal rings.

● Do not spread gap of new seal ring excessively while

installing. The ring may become deformed.
J

SAT699H
K

Revision: November 2006 AT-305 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Control Valve Assembly ECS009B3

COMPONENTS

SAT537K

1. Oil strainer 2. O-ring 3. Snap ring

4. Terminal body 5. O-rings 6. Control valve lower body
7. Oil cooler relief valve spring 8. Check ball 9. Separating plate
10. Support plate 11. Steel ball 12. Control valve inter body
13. Pilot filter 14. Separating plate 15. Steel ball
16. Control valve upper body

DISASSEMBLY
Disassemble upper, inter and lower bodies.

Revision: November 2006 AT-306 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Bolt length, number and location:
Bolt symbol a b c d e f g
A

Bolt length “ ” mm
(in)
13.5 58.0 40.0 66.0 33.0 78.0 18.0 B
(0.531) (2.283) (1.575) (2.598) (1.299) (3.071) (0.709)

AT
Number of bolts 6 3 6 11 2 2 1
f: Reamer bolt and nut.

I
SAT704J

1. Remove bolts a , d and nut f and remove oil strainer from con-
trol valve assembly. J

AAT780
M
2. Remove solenoid valve assembly and line pressure solenoid
valve from control valve assembly.

SAT062F

Revision: November 2006 AT-307 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
3. Remove O-rings from solenoid valves and terminal body.
CAUTION:
Do not reuse O-rings.

SCIA0804E

4. Place upper body facedown, and remove bolts b , c and nut f .

SAT064FA

5. Remove inter body from lower body.

SAT432D

6. Turn over lower body, and remove accumulator support plate.

SAT109D

7. Remove bolts e , separating plate and separating gasket from

lower body.
8. Remove check balls and oil cooler relief valve springs from
lower body.
CAUTION:
Do not lose check balls and oil cooler relief valve springs.

SAT110DA

Revision: November 2006 AT-308 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
9. Remove inter body from upper body.
A

AT

SAT065F
D
10. Check to see that steel balls are properly positioned in inter
body and then remove them.
CAUTION: E
Do not lose steel balls.

G
SAT705J

11. Check to see that steel balls are properly positioned in upper H
body and then remove them.
CAUTION:
Do not lose steel balls. I

SAT771J K
INSPECTION
Lower and Upper Bodies
L
CAUTION:
Do not lose these parts.
● Check to see that retainer plates are properly positioned in lower
body. M

SCIA3290E

Revision: November 2006 AT-309 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
● Check to see that retainer plates are properly positioned in
upper body.

SCIA3294E

Oil Strainer
● Check wire netting of oil strainer for damage.
Shift Solenoid Valves “A” and “B”, Line Pressure Solenoid Valve, Torque Converter Clutch
Solenoid Valve and Overrun Clutch Solenoid Valve
● Measure resistance.
● For shift solenoid valve A, refer to AT-175, "Diagnostic Proce-
dure" .
● For shift solenoid valve B, refer to AT-180, "Diagnostic Proce-
dure" .
● For line pressure solenoid valve, refer to AT-169, "Diagnostic
Procedure" .
● For torque converter clutch solenoid valve, refer to AT-156,
"Diagnostic Procedure" .
● For overrun clutch solenoid valve, refer to AT-188, "Diagnostic SAT283HB
Procedure" .
Oil Cooler Relief Valve Spring
● Check springs for damage or deformation.
● Measure free length and outer diameter.
Inspection standard : Refer to AT-379, "Control
Valves" .

SAT138D

ASSEMBLY
1. Install upper, inter and lower body according to the following pro-
cedure.
a. Place oil circuit of upper body face up. Install steel balls in their
proper positions.

SAT771J

Revision: November 2006 AT-310 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
b. Install upper separating gasket, upper inter separating gasket
and upper separating plate in order shown. A

AT

SAT072F

D
c. Install reamer bolts f from bottom of upper body. Using reamer
bolts as guides, install separating plate and gaskets as a set.
E

G
SAT073FA

d. Install pilot filter.

H

SAT074F
K
e. Place lower body as shown (side of inter body face up). Install
steel balls in their proper positions.
L

SAT705J

f. Install inter body on upper body using reamer bolts f as guides.

CAUTION:
Do not dislocate or drop steel check balls.

SAT076FA

Revision: November 2006 AT-311 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
g. Install check balls and oil cooler relief valve springs in their
proper positions in lower body.

SAT110DA

h. Install lower separating gasket, lower inter separating gasket

and lower separating plate in order shown.

BAT002

i. Install bolts e from bottom of lower body. Using bolts e as

guides, install separating plate and gaskets as a set.

SAT078FA

j. Temporarily install support plates on lower body.

k. Install lower body on inter body using reamer bolts f as guides
and tighten reamer bolts f slightly.

SAT126DA

Revision: November 2006 AT-312 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Install new O-rings to solenoid valves and terminal body.
CAUTION: A
● Do not reuse O-rings.

● Apply ATF to new O-rings.

3. Install and tighten bolts according to the following procedure: B

AT

SCIA0804E

D
Bolt length, number and location:
Bolt symbol a b c d e f g

Bolt length “ ” mm (in) 13.5 58.0 40.0 66.0 33.0 78.0 18.0
E
(0.53 (2.28 (1.57 (2.59 (1.29 (3.07 (0.70
1) 3) 5) 8) 9) 1) 9)
F
Number of bolts 6 3 6 11 2 2 1

L
SAT704J

a. Install and tighten bolts b to specified torque.

M
b : 7 - 9 N-m (0.7 - 0.9 kg-m, 61 - 78 in-lb)

SAT081FA

Revision: November 2006 AT-313 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
b. Install solenoid valve assembly and line pressure solenoid valve
to lower body.

SAT062F

c. Set oil strainer, then tighten bolts a , c , d and nuts f to specified

torque.
a, c, d, f : 7 - 9 N-m (0.7 - 0.9 kg-m, 61 - 78 in-lb)

SAT083FA

d. Tighten bolts e to specified torque.

e : 3.4 - 4.4 N-m (0.35 - 0.45 kg-m, 30.4 - 39.1 in-lb)

SAT084F

Revision: November 2006 AT-314 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Control Valve Upper Body ECS009B4

COMPONENTS A
CAUTION:
Apply ATF to all components before installation.
B

AT

K
SAT772J

1. Upper body 2. Cooler check valve 3. Return spring

4. Plug 5. Retainer plate 6. 1-2 accumulator valve L
7. Return spring 8. Plug 9. Retainer plate
10. Torque converter clutch control 11. Return spring 12. Torque converter clutch control plug
valve M
13. Torque converter clutch control 14. Retainer plate 15. Torque converter relief valve
sleeve
16. Return spring 17. Retainer plate 18. Return spring
19. Overrun clutch reducing valve 20. Plug 21. Retainer plate
22. Retainer plate 23. Return spring 24. Pilot valve
25. Retainer plate 26. Plug 27. 1-2 accumulator piston
28. Return spring 29. 1-2 accumulator retainer plate 30. Retainer plate
31. Plug 32. 1st reducing valve 33. Return spring
34. Retainer plate 35. Return spring 36. 3-2 timing valve

Revision: November 2006 AT-315 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
DISASSEMBLY
1. Remove valves at retainer plates according to the following pro-
cedure:
CAUTION:
Do not use a magnetic pick-up tool.

SCIA3294E

a. Remove retainer plates using suitable tool.

SAT553G

b. Remove retainer plates while holding spring, plugs or sleeves.

NOTE:
Remove plugs slowly to prevent internal parts from jumping out.

SAT554G

c. Place mating surface of valve body face down, and remove

internal parts.
CAUTION:
Do not drop or damage valves and sleeves.
NOTE:
If a valve is hard to remove, place valve body face down and
lightly tap it using suitable tool.

SAT137D

Revision: November 2006 AT-316 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
INSPECTION
Valve Spring A
● Measure free length and outer diameter of each valve spring.
Also check for damage or deformation.
B
Inspection standard : Refer to AT-379, "Control
Valves" .
● Replace valve springs if deformed or fatigued. AT

D
SAT138D

Control Valves E
● Check sliding surfaces of valves, sleeves and plugs.
ASSEMBLY
CAUTION: F
Lay control valve body down when installing valves. Do not
stand the control valve body upright.
G

I
SAT139D

1. Lubricate the control valve body and all valves with ATF. Install J
control valves by sliding them carefully into their bores.
CAUTION:
Be careful not to scratch or damage valve body. K

M
SAT140DA

● Wrap a small screwdriver with vinyl tape and use it to insert

the valves into their proper positions.

SAT141D

Revision: November 2006 AT-317 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
1-2 Accumulator Valve
● Install 1-2 accumulator valve. Align 1-2 accumulator retainer
plate from opposite side of control valve body.
● Install return spring, 1-2 accumulator piston and plug.

SAT142D

1. Install retainer plates.

● While pushing plug or return spring using suitable tool, install
retainer plate.

SAT143D

Retainer Plate (Upper Body)

Unit: mm (in)
No. Name of control valve Width A Length B
22 Pilot valve
30 1st reducing valve
21.5 (0.846)
34 3-2 timing valve
17 Torque converter relief valve
9 1-2 accumulator valve 6.0 (0.236)
38.5 (1.516)
25 1-2 accumulator piston valve
SAT086F
21 Overrun clutch reducing valve
24.0 (0.945)
5 Cooler check valve
14 Torque converter clutch control valve 28.0 (1.102)

● Install proper retainer plates. Refer to AT-315, "COMPONENTS" .

Revision: November 2006 AT-318 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Control Valve Lower Body ECS009B5

COMPONENTS A

AT

SAT773J

1. Lower body 2. Retainer plate 3. Return spring K

4. Piston 5. Parallel pin 6. Sleeve
7. Return spring 8. Pressure modifier valve 9. Retainer plate
10. Plug 11. Shift valve B 12. Return spring L
13. Manual valve 14. Pressure regulator valve 15. Return spring
16. Spring seat 17. Plug 18. Sleeve
19. Retainer plate 20. Return spring 21. Overrun clutch control valve M
22. Plug 23. Retainer plate 24. Return spring
25. Accumulator control valve 26. Plug 27. Retainer plate
28. Shift valve A 29. Return spring 30. Retainer plate
31. Shuttle valve 32. Return spring 33. Plug
34. Plug 35. Retainer plate

Revision: November 2006 AT-319 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
DISASSEMBLY
Remove valves at retainer plate. Refer to AT-319, "COMPONENTS"
.

SCIA3290E

INSPECTION
Valve Springs
Check each valve spring for damage or deformation. Also measure
free length and outer diameter.
Inspection standard : Refer to AT-379, "Control
Valves" .
Replace valve springs if deformed or fatigued.

SAT138D

Control Valves
Check sliding surfaces of control valves, sleeves and plugs for damage.
ASSEMBLY
Install control valves. Refer to AT-319, "COMPONENTS" .
CAUTION:
Apply ATF to all components before installation.

SCIA3290E

Retainer Plate (Lower Body)

Unit: mm (in)
No. Name of control valve and plug Width A Length B Type
19 Pressure regulator valve
27 Accumulator control valve
30 Shift valve A 6.0 28.0
I
23 Overrun clutch control valve (0.236) (1.102)

2 Pressure modifier valve

35 Shuttle valve
SAT089F
9 Shift valve B — — II

● Install proper retainer plates. Refer to AT-319, "COMPONENTS" .

Revision: November 2006 AT-320 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Reverse Clutch ECS009B6

COMPONENTS A

AT

WCIA0372E
G
DISASSEMBLY
1. Check operation of reverse clutch
a. Install seal ring onto drum support of oil pump cover and install H
reverse clutch assembly. Apply compressed air to oil hole.
b. Check to see that retaining plate moves to snap ring.
CAUTION: I
If retaining plate does not contact snap ring:
● D-ring might be damaged.

● Oil seal might be damaged.

J
● Fluid might be leaking past piston check ball.
SCIA3316E

K
2. Remove snap ring using suitable tool.
3. Remove drive plates, driven plates, retaining plate, and dish
plates. L

SCIA4886E

4. Remove snap ring from reverse clutch drum while compressing

return springs using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87)
CAUTION:
● Set Tool directly over springs.

● Do not expand the snap ring excessively.

5. Remove spring retainer and return springs.

SCIA5387E

Revision: November 2006 AT-321 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
6. Remove reverse clutch piston from reverse clutch drum by turn-
ing it as shown.
7. Remove D-ring and oil seal from piston.

SCIA3319E

INSPECTION
Reverse Clutch Snap Ring, Spring Retainer and Return Springs
Check for deformation, fatigue or damage. If damaged, replace.
Reverse Clutch Drive Plates
● Check facing for burns, cracks or damage.
● Measure thickness of facing.
Thickness of drive plate:
Standard value : 1.6 mm (0.063 in)
Wear limit : 1.4 mm (0.055 in)
● If not within wear limit, replace.

SAT162D

Reverse Clutch Dish Plates

● Check for deformation or damage.
● Measure thickness of dish plate.
Thickness of dish plate : 3.08 mm (0.1213 in)
● If deformed or fatigued, replace.

SAT163D

Reverse Clutch Piston

● Make sure that check balls are not stuck.
● Apply compressed air to check ball oil hole opposite the return spring. Make sure there is no air leakage.
● Apply compressed air to oil hole on return spring side to make sure that air leaks past ball.
ASSEMBLY
1. Install new D-ring and new seal ring on piston.
CAUTION:
● Do not reuse D-ring and seal ring.

● Apply ATF to new D-ring and new seal ring.

● Take care with the direction of new D-ring and new seal
ring.

SCIA4887E

Revision: November 2006 AT-322 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Install piston assembly by turning it slowly.
CAUTION: A
Apply ATF to inner surface of drum.

AT

SCIA3319E

D
3. Install return springs and spring retainer on piston using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87)
E
CAUTION:
● Set Tool directly over springs.

G
SCIA5387E

4. Set Tool on spring retainer and install snap ring while compressing return springs.
H
5. Install drive plates, driven plates, retaining plate and dish plates.
CAUTION:
Take care with the order of plates. I
6. Install snap ring using suitable tool.
CAUTION:
Do not expand snap ring excessively. J

L
SCIA4886E

7. Measure clearance between retaining plate and snap ring. If not

within allowable limit, select proper retaining plate. M

Specified clearance
Standard : 0.5 - 0.8 mm
(0.020 - 0.031 in)
Allowable limit : 1.2 mm (0.047 in)
Retaining plate : Refer to AT-380,
"REVERSE CLUTCH" .

SCIA3321E

Revision: November 2006 AT-323 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
8. Check operation of reverse clutch using compressed air.

SCIA3316E

High Clutch ECS009B7

COMPONENTS

WCIA0373E

DISASSEMBLY
1. Check operation of high clutch using compressed air.
a. Apply compressed air to oil hole of input shaft while covering
hole on opposite side with nylon cloth.
b. Check to see that retaining plate moves to snap ring.
CAUTION:
If retaining plate does not contact snap ring:
● D-ring might be damaged.

● Oil seal might be damaged.

● Fluid might be leaking past piston check ball.

SAT176D

2. Remove seal rings from input shaft.

CAUTION:
Do not reuse seal rings.

SCIA4890E

Revision: November 2006 AT-324 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
3. Remove snap ring using suitable tool.
4. Remove drive plates, driven plates and retaining plate. A

AT

SAT095F
D
5. Remove snap ring from high clutch drum while compressing
return springs using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87) E
CAUTION:
● Set Tool directly over springs.
F
● Do not expand snap ring excessively.

6. Remove cancel force cover and return springs.

G
SCIA5388E

7. Remove piston from high clutch drum by turning it. H

SAT111F K

INSPECTION
High Clutch Snap Ring, Spring Retainer and Return Springs L
Check for deformation, fatigue or damage. Replace if necessary.
CAUTION:
Always replace the spring retainer and return springs as a set. M
High Clutch Drive Plates
● Check facing for burns, cracks or damage.
● Measure thickness of facing.
Thickness of drive plate:
Standard value : 1.6 mm (0.063 in)
Wear limit : 1.4 mm (0.055 in)
● If not within wear limit, replace.

SAT162D

Revision: November 2006 AT-325 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Seal Ring Clearance
● Install new seal rings onto input shaft.
● Measure clearance between seal ring and ring groove.
Standard clearance : 0.08 - 0.23 mm
(0.0031 - 0.0091 in)
Allowable limit : 0.23 mm (0.0091 in)
● If not within allowable limit, replace input shaft assembly.

SAT187D

ASSEMBLY
1. Install return springs and cancel force spring on piston.

2. Install piston assembly by turning it slowly.

CAUTION:
Apply ATF to inner surface of drum.

SAT111F

3. Install snap ring while compressing return springs using Tool.

Tool number : KV31102400 (J-34285 and J-34285-87)
CAUTION:
Set Tool directly over return springs.

SCIA5388E

CAUTION:
Do not align the snap ring gap with the spring retainer stop-
per.

SAT113F

4. Install drive plates, driven plates and retaining plate.

CAUTION:
Take care with the order and direction of plates.

Revision: November 2006 AT-326 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
5. Install snap ring using suitable tool.
CAUTION: A
Do not expand snap ring excessively.

AT

SAT095F

D
6. Measure clearance between retaining plate and snap ring. If not
within allowable limit, select proper retaining plate.
Specified clearance E
Standard : 1.8 - 2.2 mm (0.071 - 0.087 in)
Allowable limit : 2.8 mm (0.110 in)
F
Retaining plate
: Refer to AT-380, "HIGH CLUTCH" .
: Refer to AT-380, "HIGH CLUTCH" . G
SCIA4892E

7. Check operation of high clutch.

H

SAT196D
K
8. Install new seal rings to input shaft.
CAUTION:
● Do not reuse seal rings. L
● Apply petroleum jelly to new seal rings.

SAT197D

● Roll paper around new seal rings to prevent them from

spreading.

SAT198D

Revision: November 2006 AT-327 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Forward and Overrun Clutches ECS009B8

COMPONENTS

WCIA0374E

Revision: November 2006 AT-328 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
DISASSEMBLY
1. Check operation of forward clutch and overrun clutch. A
a. Install bearing retainer on forward clutch drum.
b. Apply compressed air to oil hole of forward clutch drum.
B
c. Check to see that retaining plate moves to snap ring.
CAUTION:
If retaining plate does not contact snap ring:
AT
● D-ring might be damaged.

● Oil seal might be damaged.

● Fluid might be leaking past piston check ball.

SAT123F
D

2. Remove snap ring for forward clutch using suitable tool.

3. Remove drive plates, driven plates, retaining plate and dish E
plate for forward clutch.

SAT203D

H
4. Remove snap ring for overrun clutch using suitable tool.
5. Remove drive plates, driven plates, retaining plate and dish
plate for overrun clutch.
I

K
SAT204D

6. Remove snap ring from forward clutch drum while compressing

return springs using Tool. L

Tool number : KV31102400 (J-34285 and J-34285-87)

CAUTION: M
● Set Tool directly over return springs.

● Do not expand snap ring excessively.

SCIA5389E

7. Remove spring retainer and return springs.

CAUTION:
Do not remove return springs from spring retainer.

Revision: November 2006 AT-329 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
8. Remove forward clutch piston with overrun clutch piston from
forward clutch drum by turning it.

SAT125F

9. Remove overrun clutch piston from forward clutch piston by

turning it.

SAT126F

10. Remove D-rings and seal rings from forward clutch piston and
overrun clutch piston.
CAUTION:
Do not reuse D-rings and seal rings.

SCIA3046E

INSPECTION
Snap Rings, Spring Retainer and Return Springs
● Always replace spring retainer and return springs as a set.
● Check for deformation, fatigue or damage. Replace if necessary.
Forward Clutch and Overrun Clutch Drive Plates
● Check facing for burns, cracks or damage.
● Measure thickness of facing.
Thickness of drive plate:
Forward clutch
Standard value : 1.6 mm (0.063 in)
Wear limit : 1.4 mm (0.055 in)
Overrun clutch
Standard value : 1.6 mm (0.063 in)
SAT162D
Wear limit : 1.4 mm (0.055 in)
● If not within wear limit, replace.

Revision: November 2006 AT-330 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Forward Clutch and Overrun Clutch Dish Plates
● Check for deformation or damage. A
● Measure thickness of dish plate.
Thickness of dish plate B
Forward clutch : 2.7 mm (0.106 in)
Overrun clutch : 2.7 mm (0.106 in)
AT
● If deformed or fatigued, replace.

SAT163D
D

Forward Clutch Drum

● Make sure that check balls are not stuck. E
● Apply compressed air to check ball oil hole from outside of for-
ward clutch drum. Make sure air leaks past ball.
● Apply compressed air to oil hole from inside of forward clutch F
drum. Make sure there is no air leakage.

SAT213D H
Overrun Clutch Piston
● Make sure that check balls are not stuck.
● Apply compressed air to check ball oil hole opposite the return I
spring. Make sure there is no air leakage.
● Apply compressed air to oil hole on return spring side. Make
sure that air leaks past ball. J

SAT212D
L
ASSEMBLY
1. Install new D-rings and new seal rings on forward clutch piston
and overrun clutch piston.
M
CAUTION:
● Do not reuse D-rings and seal rings.

● Apply ATF to new D-rings and new seal rings.

● Take care with the direction of new D-rings and new seal
rings.

SCIA3046E

Revision: November 2006 AT-331 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Install overrun clutch piston assembly on forward clutch piston
by turning it slowly.
CAUTION:
Apply ATF to inner surface of forward clutch piston.

SAT126F

3. Install forward clutch piston assembly on forward clutch drum by

turning it slowly.
CAUTION:
Apply ATF to inner surface of drum.

SAT125F

4. Install spring retainer assembly on overrun clutch piston.

WCIA0375E

● Align the mark on spring retainer assembly with check ball in

overrun clutch piston.

SAT133F

5. Install snap ring while compressing spring retainer assembly

using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87)
CAUTION:
● Set Tool directly over the spring retainer assembly.
● Do not expand snap ring excessively.

SCIA5389E

Revision: November 2006 AT-332 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
● Do not align snap ring with the spring retainer assembly
stopper. A

AT

SAT134F
D
6. Install drive plates, driven plates, retaining plate and dish plate
for overrun clutch and install snap ring for the overrun clutch
using suitable tool. E
CAUTION:
Take care with the order of plates.
F

G
SAT204D

7. Measure clearance between overrun clutch retaining plate and H

snap ring.
If not within allowable limit, select proper retaining plate.
Specified clearance I
Standard : 0.7 - 1.1 mm (0.028 - 0.043 in)
Allowable limit : 1.7 mm (0.067 in)
Overrun clutch Refer to AT-381, "OVERRUN J
retaining plate CLUTCH" .

SAT135F K
8. Install drive plates, driven plates, retaining plate and dish plate
for forward clutch and install snap ring for the forward clutches
using suitable tool. L
CAUTION:
Take care with the order of plates.
M

SAT203D

9. Measure clearance between forward clutch retaining plate and

snap ring.
If not within allowable limit, select proper retaining plate.
Specified clearance
Standard : 0.45 - 0.85 mm
(0.0177 - 0.0335 in)
Allowable limit : 1.85 mm (0.0728 in)
Forward clutch : Refer to AT-380, "FORWARD
retaining plate CLUTCH" .
SAT228D

Revision: November 2006 AT-333 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
10. Check operation of forward clutch.
11. Check operation of overrun clutch.

SAT123F

Low & Reverse Brake ECS009B9

COMPONENTS

WCIA0376E

DISASSEMBLY
1. Check operation of low & reverse brake.
a. Apply compressed air to oil hole of transaxle case.
b. Check to see that retaining plate moves to snap ring.
CAUTION:
If retaining plate does not contact snap ring:
● D-ring might be damaged.

● Fluid might be leaking past piston check ball.

SAT147F

Revision: November 2006 AT-334 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. In order to remove piston, apply compressed air to oil hole of
retainer while holding piston. A
CAUTION:
Apply compressed air gradually to allow the piston to come
out evenly. B

AT

SAT149F

D
3. Remove D-rings from piston and discard.
CAUTION:
Do not reuse D-rings. E

G
SAT150F

INSPECTION
H
Low and Reverse Brake Snap Ring, Spring Retainer and Return Springs
● Check for deformation, replace if fatigue or damage.
● Always replace the spring retainer and return springs as a set.
I
Low and Reverse Brake Drive Plate
● Check facing for burns, cracks or damage.
● Measure thickness of facing. J

Thickness of drive plate

Standard value : 1.8 mm (0.071 in) K
Wear limit : 1.6 mm (0.063 in)
● If not within wear limit, replace.
L

SAT162D

M
ASSEMBLY
1. Install new D-rings on piston.
CAUTION:
● Do not reuse D-rings.

● Apply ATF to new D-rings.

SAT150F

Revision: November 2006 AT-335 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Set and align piston with retainer using suitable tool.
CAUTION:
This operation may be required in order to engage the pro-
trusions of the piston to the return springs correctly.

SAT323F

3. Install new driven plates, drive plates, retaining plate and dish
plate on transaxle case.
CAUTION:
Take care with the order of plates and direction of dish
plate.

SAT923H

4. Install snap ring using suitable tool.

CAUTION:
Do not expand snap ring excessively.

SAT546G

5. Measure clearance between driven plate and transaxle case. If

not within allowable limit, select proper retaining plate. (front
side)
Specified clearance
Standard : 1.7 - 2.1 mm (0.067 - 0.083 in)
Allowable limit : 3.3 mm (0.130 in)
Retaining plate Refer to AT-381, "LOW &
REVERSE BRAKE" .
SAT155F

Revision: November 2006 AT-336 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Rear Internal Gear, Forward Clutch Hub and Overrun Clutch Hub ECS009BA

COMPONENTS A

AT

SAT975H
G
DISASSEMBLY
1. Remove overrun clutch hub and thrust washer from forward
clutch hub. H

SAT157F

K
2. Remove forward clutch hub from rear internal gear.

SAT251D

3. Remove bearing from rear internal gear.

SAT252DA

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
4. Remove thrust washer from rear internal gear.

SAT253D

5. Remove bearing from forward one-way clutch.

SAT254DA

6. Remove forward one-way clutch from forward clutch hub.

SAT255D

INSPECTION
Rear Internal Gear, Forward Clutch Hub and Overrun Clutch Hub
● Check rubbing surfaces for wear or damage.

SAT256D

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Bearings and Forward One-Way Clutch
● Check bearings for deformation and damage. A
● Check forward one-way clutch for wear and damage.

AT

SAT158FA
D

ASSEMBLY
1. Install forward one-way clutch on forward clutch. E
CAUTION:
Take care with the direction of forward one-way clutch.
F

SAT976H
H
2. Install bearing on forward one-way clutch.
CAUTION:
Apply petroleum jelly to bearing. I

SAT159FA

3. Install thrust washer on rear internal gear. L

CAUTION:
● Apply petroleum jelly to thrust washer.

● Align hooks of thrust washer with holes of rear internal M

gear.

SAT160F

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
4. Install bearing on rear internal gear.
CAUTION:
Apply petroleum jelly to bearing.

SAT161FA

5. Install thrust washer and overrun clutch hub.

CAUTION:
● Apply petroleum jelly to thrust washer.

● Align hooks of thrust washer with holes of overrun clutch

hub.
● Align projections of rear internal gear with holes of over-
run clutch hub.

SAT157F

6. Install forward clutch hub on rear internal gear.

CAUTION:
● Check operation of the forward one-way clutch.

● Hold the rear internal gear and turn the forward clutch
hub.
● Check forward clutch hub for correct locking and unlock-
ing directions as shown, if incorrect check assembly of
the forward one-way clutch.

AAT426

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Output Shaft, Idler Gear, Reduction Pinion Gear and Bearing Retainer ECS009BB

COMPONENTS A

AT

SAT291K

DISASSEMBLY K
1. Remove seal rings from output shaft and bearing retainer.
CAUTION:
Do not reuse seal rings. L

SAT164F

2. Remove output shaft bearing using suitable tools.

CAUTION:
● Do not reuse output shaft bearing.

● Do not damage output shaft.

SAT165F

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
3. Remove snap ring from bearing retainer using suitable tool.
CAUTION:
Do not expand snap ring excessively.

SAT166F

4. Remove needle bearing from bearing retainer suitable tool.

SAT167F

5. Remove idler gear bearing inner race from idler gear using suit-
able tool.

SAT168F

6. Remove idler gear bearing outer race from transaxle case using
Tool.
Tool number : KV381054S0 (J-34286)

SCIA5390E

7. Press out reduction pinion gear bearing inner race from reduc-
tion pinion gear using suitable tool.

SAT169F

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
8. Remove reduction pinion gear bearing outer race from transaxle
case using suitable tool. A

AT

SAT319K
D
INSPECTION
Output Shaft, Idler Gear and Reduction Pinion Gear
● Check shafts for cracks, wear or bending. E
● Check gears for wear, chips and cracks.
Bearing
F
● Make sure bearings roll freely and free from noise, cracks, pit-
ting or wear.
● Always replace roller bearing inner and outer races as a set.
G

I
SPD715

Seal Ring Clearance

● Install new seal rings to output shaft. J
● Measure clearance between seal ring and ring groove of output
shaft.
K
Standard clearance : 0.10 - 0.25 mm
(0.0039 - 0.0098 in)
Allowable limit : 0.25 mm (0.0098 in) L
● If not within allowable limit, replace output shaft.
● Install new seal rings to bearing retainer.
● Measure clearance between seal ring and ring groove of bear- SAT171F M
ing retainer.
Standard clearance : 0.10 - 0.30 mm (0.0039 - 0.0118 in)
Allowable limit : 0.30 mm (0.0118 in)
● If not within allowable limit, replace bearing retainer.

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
ASSEMBLY
1. Press reduction pinion gear bearing inner race on reduction pin-
ion gear using Tool.
Tool number : KV40100630 (J-26092)

SCIA5391E

2. Install reduction pinion gear bearing outer race on transaxle

case.
Reduction pinion : 109 - 123 N-m (11.1 - 12.5 kg-m,
gear bearing outer 80 - 90 ft-lb)
race bolts

SAT319K

3. Press idler gear bearing inner race on idler gear using Tool.
Tool number : KV40100630 (J-26092)

SCIA5392E

4. Install idler gear bearing outer race on transaxle case using

Tool.
Tool number : ST30720000 (J-25405 and J-34331)

SCIA5393E

5. Press output shaft bearing on output shaft using Tool.

Tool number : ST35321000 ( — )

SAT863D

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
6. Press needle bearing on bearing retainer using suitable tool.
A

AT

SAT176F
D
7. Install snap ring to bearing retainer using suitable tool.
CAUTION:
Do not expand snap ring excessively. E

G
SAT166F

8. After packing ring grooves with petroleum jelly, carefully install H

new seal rings on output shaft and bearing retainer.
CAUTION:
● Do not reuse seal rings.
I
● Apply petroleum jelly to new seal rings.

SAT164F K

● Roll paper around seal rings to prevent them from

spreading. L

SAT179F

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Band Servo Piston Assembly ECS009BC

COMPONENTS

WCIA0377E

DISASSEMBLY
1. Remove band servo piston bolts using suitable tool.

AAT879

2. Apply compressed air to oil hole in transaxle case to remove O/

D servo piston retainer and band servo piston assembly.
CAUTION:
Hold band servo piston assembly with a rag.

SAT093J

3. Apply compressed air to oil hole in O/D servo piston retainer to

remove O/D servo piston from retainer.
CAUTION:
Hold O/D band servo while applying compressed air.

AAT880

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
4. Remove D-ring from O/D servo piston.
CAUTION: A
Do not reuse D-ring.

AT

AAT881

D
5. Remove O-rings from O/D servo piston retainer.
CAUTION:
Do not reuse O-ring. E

G
AAT882

6. Remove band servo piston assembly from servo piston retainer

H
by pushing it forward.

SAT293D
K
7. Place piston stem end on a wooden block. While pushing servo
piston spring retainer down, remove E-ring using suitable tool.
L

SAT294D

8. Remove O/D servo return spring, band servo thrust washer and
band servo piston stem from band servo piston.

AAT883

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
9. Remove O-rings from servo piston retainer.
CAUTION:
Do not reuse O-rings.

SAT296DA

10. Remove D-rings from band servo piston.

CAUTION:
Do not reuse D-rings.

SAT297D

INSPECTION
Pistons, Retainers and Piston Stem
● Check frictional surfaces for abnormal wear or damage.
Return Springs
● Check for deformation or damage.
● Measure free length and outer diameter.
Inspection standard : Refer to AT-384, "Band Servo"
.

AAT884

ASSEMBLY
1. Install new D-rings to servo piston retainer.
CAUTION:
● Do not reuse D-rings.

● Apply ATF to new D-rings.

● Take care with the position of the new D-rings.

SAT297D

Revision: November 2006 AT-348 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
2. Install band servo piston stem, band servo thrust washer, O/D
servo return spring and spring retainer to band servo piston. A

AT

AAT883

D
3. Place piston stem end on a wooden block. While pushing servo
piston spring retainer down, install E-ring using suitable tool.
E

G
SAT301D

4. Install new O-rings to servo piston retainer.

H
CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings.

I
● Take care with the position of the new O-rings.

SAT296DA
K
5. Install band servo piston assembly to servo piston retainer by
pushing it inward.
L

SAT303D

6. Install new D-ring to O/D servo piston.

CAUTION:
● Do not reuse D-ring.

● Apply ATF to new D-ring.

● Take care with the position of the new D-ring.

AAT881

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
7. Install new O-rings to O/D servo piston retainer.
CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings.

● Take care with the position of new O-rings.

AAT882

8. Install O/D servo piston to O/D servo piston retainer.

AAT886

9. Install band servo piston assembly and 2nd servo return spring
to transaxle case.
CAUTION:
Apply ATF to O-ring of band servo piston assembly and
transaxle case.

SAT865H

10. Install O/D servo piston assembly to transaxle case.

CAUTION:
Apply ATF to O-ring of O/D servo piston assembly and tran-
saxle case.

AAT885

11. Install O/D servo piston retainer to transaxle case using suitable
tool. Refer to AT-306, "COMPONENTS" .

AAT879

Revision: November 2006 AT-350 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Final Drive ECS009BD

COMPONENTS A

AT

WCIA0327E
G
DISASSEMBLY
1. Remove final gear using suitable tool.
H

SMT505B

K
2. Press out differential side bearings using Tools.
Tool number : ST3301001 (J-22888-D)
: ST33061000 (J-8107-2) L

CAUTION:
Do not mix up the right and left bearings.
M

SCIA5394E

3. Remove differential side bearing outer race and side bearing

adjusting shim from transaxle case using Tool.
Tool number :KV381054S0 (J-34286)

SCIA5378E

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
4. Remove speedometer drive gear.

SAT313D

5. Drive out pinion mate shaft lock pin using Tool.

Tool number : KV32101000 (J-25689-A)

SCIA5395E

6. Draw out pinion mate shaft lock pin.

7. Remove pinion mate gears and side gears.

SAT316D

INSPECTION
Gear, Washer, Shaft and Case
● Check mating surfaces of differential case, side gears and pin-
ion mate gears.
● Check washers for wear.

SAT544F

Revision: November 2006 AT-352 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
Bearings
● Make sure bearings roll freely and are free from noise, cracks, A
pitting or wear.
● When replacing taper roller bearing, replace outer and inner
race as a set. B

AT

SPD715
D

ASSEMBLY
1. Attach side gear thrust washers to side gears, then install pinion E
mate thrust washers and pinion mate gears in place.
CAUTION:
Apply ATF to all parts during assembly.
F

SMT839
H
2. Insert pinion mate shaft.
CAUTION:
When inserting, do not damage pinion mate thrust washers. I

SMT087A

3. Measure clearance between side gear and differential case with L

washers using Tool, according to the following procedure:
Tool number — (J-39713)
M
a. Set Tool and dial indicator on side gear.

SCIA5396E

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 REPAIR FOR COMPONENT PARTS
[RE4F04B]
b. Move side gear up and down to measure dial indicator deflec-
tion. Always measure indicator deflection on both side gears.
Clearance between side : 0.1 - 0.2 mm
gear and differential (0.004 - 0.008 in)
case with washer
c. If not within specification, adjust clearance by changing thick-
ness of differential side gear thrust washers.
Differential side gear : Refer to AT-382, "DIF-
thrust washers FERENTIAL SIDE GEAR SMT611A
THRUST WASHERS" .

4. Install lock pin using Tool

Tool number :KV32101000 (J-25689-A)
CAUTION:
Make sure the pin is flush with case.

SCIA5395E

5. Install speedometer drive gear on differential case.

CAUTION:
Align the projection of speedometer drive gear with the
groove of differential case.

SAT313D

6. Press on differential side bearings using Tool.

Tool number : ST33230000 (J-25805-01)

SCIA5397E

Revision: November 2006 AT-354 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE4F04B]
7. Install final gear and tighten final gear bolts in a crisscross pat-
tern to the specified torque using suitable tool. Refer to AT-351, A
"COMPONENTS" .

AT

SAT546F

Revision: November 2006 AT-355 2006 Altima

 ASSEMBLY
[RE4F04B]
ASSEMBLY PFP:00000

Assembly (1) ECS009BE

1. Install new differential side oil seals on transaxle case and con-
verter housing using Tool.
Tool number : ST33400001 (J-26082)
CAUTION:
Do not reuse oil seals.

SCIA5399E

SAT182F

2. Install parking actuator support to transaxle case. Tighten park-

ing actuator support bolts to the specified torque. Refer to AT-
278, "Components" .
CAUTION:
Take care with the direction of the parking actuator support.

SAT183F

3. Install parking pawl on transaxle case and secure it with parking

shaft.
4. Install return spring.

WCIA0330E

Revision: November 2006 AT-356 2006 Altima

 ASSEMBLY
[RE4F04B]
Adjustment (1) ECS009BF

DIFFERENTIAL SIDE BEARING PRELOAD A

1. Install differential side bearing outer race without adjusting shim
on transaxle case.
2. Install differential side bearing outer race on converter housing B
using suitable tool.

AT

D
SAT870D

3. Place final drive assembly on transaxle case. E

4. Install transaxle case on converter housing. Tighten transaxle
case bolts to the specified torque. Refer to AT-278, "Compo-
nents" . F

H
SAT008F

5. Attach dial indicator on differential case at converter housing

side. I
6. Insert Tool into differential side gear from transaxle case side.
Tool number : — (J-39713) J
7. Move Tool up and down and measure dial indicator deflection.
8. Select proper thickness of differential side bearing adjusting
shim(s). K
Suitable shim thickness = Dial indicator deflection + Speci-
fied bearing preload
Differential side bearing : Refer to AT-382, "DIF- L
preload adjusting shim FERENTIAL SIDE BEAR-
ING PRELOAD
ADJUSTING SHIMS" . M
Bearing preload : 0.05 - 0.09 mm
(0.0020 - 0.0035 in)

SCIA5400E

9. Remove converter housing from transaxle case.

10. Remove final drive assembly from transaxle case.

Revision: November 2006 AT-357 2006 Altima

 ASSEMBLY
[RE4F04B]
11. Remove differential side bearing outer race from transaxle case
using Tool.
Tool number : KV381054S0 (J-34286)
12. Reinstall differential side bearing outer race and shim(s)
selected from SDS table on transaxle case.
13. Reinstall converter housing on transaxle case and tighten tran-
saxle case bolts to the specified torque. Refer to AT-278,
"OVERHAUL" .

SCIA5378E

14. Measure turning torque of final drive assembly using Tool.

Tool number : — (J-39713)
NOTE:
●Turn the final drive assembly in both directions several times
to seat the bearing rollers correctly
Turning torque of final : 0.78 - 1.54 N-m (8.0 - 15.7 kg-
drive assembly (New cm, 6.9 - 13.6 in-lb)
bearing)
● When old bearing is being used again, turning torque will be SCIA5401E

slightly less than above.

● Make sure torque is close to the specified range.
REDUCTION PINION GEAR BEARING PRELOAD
1. Remove transaxle case and final drive assembly from converter
housing.
2. Select proper thickness of reduction pinion gear bearing adjust-
ing shim using the following procedures:
a. Place reduction pinion gear on transaxle case as shown.

SAT332DA

b. Place idler gear bearing on transaxle case.

c. Measure dimensions “B” “C” and “D” and calculate dimension
“A”.
A = D − (B + C)
“A” : Distance between the surface of idler
gear bearing inner race and the
adjusting shim mating surface of
reduction pinion gear.

SAT333DA

Revision: November 2006 AT-358 2006 Altima

 ASSEMBLY
[RE4F04B]
● Measure dimension “B” between the end of reduction pinion
gear and the surface of transaxle case using straightedge and A
depth gauge.
NOTE:
Measure dimension “B” in at least two places. B

AT

SAT334DA

D
● Measure dimension “C” between the surface of idler gear
bearing inner race and the surface of transaxle case using
straightedge and depth gauge. E
● NOTE:
Measure dimension “C” in at least two places.
F

G
SAT335D

● Measure dimension “D” between the end of reduction pinion H

gear and the adjusting shim mating surface of reduction pin-
ion gear using straightedge and depth gauge.
● NOTE: I
Measure dimension “D” in at least two places.
● Calculate dimension “A”.
A = D − (B + C) J

SAT336DA K
d. Measure dimension “E” between the end of idler gear and the
idler gear bearing inner race mating surface of idler gear using
depth gauge. L
NOTE:
Measure dimension “E” in at least two places.
e. Select proper thickness of reduction pinion gear bearing adjust- M
ing shim.
Proper shim thickness = A − E − 0.05 mm (0.0020 in)*

(*: Bearing preload) SAT337D

Reduction pinion gear : Refer to AT-383,

bearing adjusting shim "REDUCTION PINION
GEAR BEARING ADJUST-
ING SHIMS" .

Revision: November 2006 AT-359 2006 Altima

 ASSEMBLY
[RE4F04B]
3. Install reduction gear and reduction gear bearing adjusting shim
selected in step 2-e on transaxle case.
4. Press idler gear bearing inner race on idler gear.
5. Install idler gear on reduction gear using Tool.
Tool number : ST35271000 (J-26091)
CAUTION:
Press idler gear until idler gear fully contacts adjusting
shim.

SCIA5402E

6. Tighten idler gear lock nut to the specified torque using suitable
tool. Refer to AT-278, "Components" .
CAUTION:
Lock idler gear with parking pawl when tightening lock nut.

SAT189F

7. Measure turning torque of reduction pinion gear using Tool.

Tool number : ST3127S000 (J-25765-A)
● When measuring turning torque, turn the reduction pin-
ion gear in both directions several times to seat bearing
rollers correctly.
Turning torque of : 0.05 - 0.39 N-m (0.5 - 4.0 kg-cm,
reduction pinion gear 0.43 - 3.47 in-lb)
● If turning torque is out of specification, select the correct
reduction pinion gear adjusting shim. WCIA0378E

8. After properly adjusting turning torque, clinch idler gear lock nut
as shown.

SAT699D

Revision: November 2006 AT-360 2006 Altima

 ASSEMBLY
[RE4F04B]
OUTPUT SHAFT END PLAY
● Measure clearance between side cover and the end of the out- A
put shaft bearing.
● Select proper thickness of adjusting shim so that clearance is
within specifications. B

AT

SAT341D
D

1. Install bearing retainer for output shaft using suitable tool.

E

SAT191F
H
2. Install output shaft thrust needle bearing on bearing retainer.
I

SAT438D

L
3. Install output shaft on transaxle case.

SAT035F

Revision: November 2006 AT-361 2006 Altima

 ASSEMBLY
[RE4F04B]
4. Measure dimensions “ 1 ” and “ 2 ” at side cover and then cal-
culate dimension “A” using straightedge and depth gauge.
● Measure dimension “ 1 ” and “ 2 ” in at least two places.

“A” : Distance between tran-

saxle case fitting surface
and adjusting shim mat-
ing surface.
A= 1 − 2
2 : Height of gauge SAT374F

5. Measure dimensions “ 2 ” and “ 3 ” and then calculate dimen-

sion “B” using straightedge and depth gauge.
● Measure “ 2 ” and “ 3 ” in at least two places.

“B” : Distance between the

end of output shaft bear-
ing outer race and the
side cover fitting surface
of transaxle case.
B= 2 − 3
SAT375F
2 : Height of gauge
6. Select proper thickness of adjusting shim so that output shaft
end play (clearance between side cover and output shaft bear-
ing) is within specifications.
Output shaft end play : 0 - 0.15 mm (0 - 0.0059 in)
(A − B)
Output shaft end play : Refer to AT-384, "OUT-
adjusting shims PUT SHAFT ADJUSTING
SHIMS" .
7. Install adjusting shim on output shaft bearing.
SAT440D

Assembly (2) ECS009BG

1. Apply anaerobic liquid gasket to transaxle case as shown. Refer

to GI-45, "Recommended Chemical Products and Sealants" .

SAT441D

Revision: November 2006 AT-362 2006 Altima

 ASSEMBLY
[RE4F04B]
2. Set side cover on transaxle case using suitable tool.
CAUTION: A
Apply locking sealant to the mating surface of transaxle
case.
B

AT

SAT442D

D
3. Tighten side cover bolts to specified torque. Refer to AT-278,
"Components" .
CAUTION: E
● Do not mix bolts A and B.

● Do not reuse bolts A as they are self-sealing bolts.

G
AAT850

4. Remove paper rolled around bearing retainer.

H
5. Install thrust washer on bearing retainer.
CAUTION:
Apply petroleum jelly to thrust washer. I

SAT033F
K

6. Install forward clutch assembly.

CAUTION: L
● Align teeth of low & reverse brake drive plates before
installing.
● Make sure that bearing retainer seal rings are not spread.
M
● If forward clutch assembly is correctly seated, points 1
and 2 are at almost same level.

SAT194F

Revision: November 2006 AT-363 2006 Altima

 ASSEMBLY
[RE4F04B]
7. Install thrust needle bearing on bearing retainer.
CAUTION:
● Apply petroleum jelly to thrust needle bearing.

● Take care with the direction of thrust needle bearing.

SAT195F

8. Install overrun clutch hub.

CAUTION:
● Apply petroleum jelly to the thrust needle bearing.

● Align the teeth of overrun clutch drive plates before

installing.

SAT030F

9. Hold forward clutch hub and turn rear internal gear.

● Check overrun clutch hub for correct directions of lock and
unlock.
● If not as shown, check installed direction of forward one-way
clutch.

SAT198F

10. Install forward clutch hub and rear internal gear assembly.
CAUTION:
● Align teeth of forward clutch drive plates before install-
ing.
● Check that three hooks of thrust washer are correctly
aligned after installing.

SAT199F

Revision: November 2006 AT-364 2006 Altima

 ASSEMBLY
[RE4F04B]
11. Install rear planetary carrier assembly and rear sun gear accord-
ing to the following procedures: A
a. Install needle bearings on rear planetary carrier.
CAUTION:
● Apply petroleum jelly to needle bearings. B
● Take care with the direction of needle bearings.

AT

SAT028F
D
b. Install rear sun gear on rear planetary carrier.
CAUTION:
Take care with the direction of rear sun gear. E

G
SAT027F

c. Install rear planetary carrier on transaxle case. H

SAT026F K

12. Install thrust needle bearing on front planetary carrier, then

install them together on transaxle case. L
CAUTION:
● Apply petroleum jelly to thrust needle bearing.

● Take care with the direction of thrust needle bearing. M

SAT380F

Revision: November 2006 AT-365 2006 Altima

 ASSEMBLY
[RE4F04B]
13. Install low and reverse brake piston according to the following
procedures.
a. Set and align return springs to transaxle case gutters as shown
in illustration.

SAT322F

b. Set and align piston with retainer using suitable tool.

SAT323F

c. Install piston and retainer assembly on the transaxle case.

CAUTION:
Align bracket to specified gutter as shown.

SAT324F

d. Check that each protrusion of piston is correctly set to corre-

sponding return spring as follows.
● Push piston and retainer assembly evenly and confirm
they move smoothly.
● If they can not move smoothly, remove piston and
retainer assembly and align return spring correctly as
instructed in step “a”.

SAT325F

Revision: November 2006 AT-366 2006 Altima

 ASSEMBLY
[RE4F04B]
e. Push down piston and retainer assembly and install snap ring
using Tool. A
Tool number : KV31102400 (J-34285 and J-34285-87)

AT

SCIA5404E

D
14. Install low one-way clutch to front planetary carrier by turning
carrier in the direction of the arrow shown.
E

G
SAT206F

15. Install snap ring using screwdriver. H

CAUTION:
● Forward clutch and bearing must be correctly installed
for snap ring to fit into groove of transaxle case. I
● Do not expand snap ring excessively.

SAT046D
K

16. Install needle bearing on transaxle case.

CAUTION: L
● Apply petroleum jelly to needle bearing.

● Take care with the direction of needle bearing.

SAT020F

17. Install bearing race, needle bearing and high clutch hub on front
sun gear.
CAUTION:
● Apply petroleum jelly to needle bearing.

● Take care with the direction of needle bearing.

SAT019F

Revision: November 2006 AT-367 2006 Altima

 ASSEMBLY
[RE4F04B]
18. Install needle bearing and high clutch drum on high clutch hub.

SAT018F

19. Install needle bearing on high clutch drum.

CAUTION:
● Apply petroleum jelly to needle bearing.

● Take care with the direction of needle bearing.

SAT017F

20. Remove paper rolled around input shaft.

21. Install input shaft assembly in reverse clutch.
CAUTION:
Align teeth of reverse clutch drive plates before installing.

SAT016F

22. Install reverse clutch assembly on transaxle case.

CAUTION:
Align teeth of high clutch drive plates before installing.

SAT015F

Revision: November 2006 AT-368 2006 Altima

 ASSEMBLY
[RE4F04B]
Adjustment (2) ECS009BH

A
When any parts listed below are replaced, adjust total end play and reverse clutch end play.
Reverse clutch end
Part name Total end play
play B
Transaxle case ● ●
Overrun clutch hub ● ●
Rear internal gear ● ●
AT

Rear planetary carrier ● ●

Rear sun gear ● ●
D
Front planetary carrier ● ●
Front sun gear ● ●
High clutch hub ● ● E
High clutch drum ● ●
Oil pump cover ● ●
F
Reverse clutch drum — ●

TOTAL END PLAY G

1. Adjust total end play “T1 ”.

J
SAT213F

a. With original bearing race installed, place Tool onto oil pump. K
The long ends of legs should be placed firmly on machined sur-
face of oil pump assembly. The gauging cylinder should rest on
top of bearing race. Lock gauging cylinder in place with set
screw. L

Tool number : — (J-34291-A)

M

SCIA5407E

b. Install gauging plunger into cylinder.

Tool number : — (J-34291-25)

SCIA5408E

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 ASSEMBLY
[RE4F04B]
c. With needle bearing installed on high clutch drum, place Tool
legs on machined surface of transaxle case (with gasket). Then
allow plunger to rest on needle bearing.
d. Measure gap between cylinder and plunger. This measurement
should give exact total end play.
Total end play “T1 ” : 0.25 - 0.55 mm
(0.0098 - 0.0217 in)
● If end play is out of specification, decrease or increase thick-
ness of bearing race as necessary.
SAT216F
Available bearing race : Refer to AT-385, "BEAR-
for adjusting total end ING RACE FOR ADJUST-
play ING TOTAL END PLAY" .
2. Adjust reverse clutch drum end play “T2 ”.

SAT218F

a. Place Tool on machined surface of transaxle case (with gasket).

Then allow gauging cylinder to rest on reverse clutch drum. Lock
cylinder in place with set screw.
Tool number : — (J-34291)

WCIA0379E

b. Install gauging plunger into cylinder, using Tool.

Tool number : — (J-34290-6)

WCIA0380E

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 ASSEMBLY
[RE4F04B]
c. With original thrust washer installed on oil pump, place Tool legs
onto machined surface of oil pump assembly. Then allow A
plunger to rest on thrust washer.
d. Measure gap between cylinder and plunger with feeler gauge.
This measurement should give exact reverse clutch drum end B
play.
Reverse clutch drum : 0.55 - 0.90 mm
end play “T2 ” (0.0217 - 0.0354 in) AT
● If end play is out of specification, decrease or increase thick-
ness of thrust washer as necessary. SAT221F

D
Available thrust washer : Refer to AT-385,
for adjusting reverse "THRUST WASHERS FOR
clutch drum end play ADJUSTING REVERSE
CLUTCH DRUM END E
PLAY" .

Assembly (3) ECS009BI

F
1. Install anchor end pin and lock nut on transaxle case.
2. Place brake band on outside of reverse clutch drum. Tighten
anchor end pin just enough so that brake band is evenly fitted on G
reverse clutch drum.

I
SAT196F

3. Place bearing race selected in total end play adjustment step on J

oil pump cover.
CAUTION:
Apply petroleum jelly to bearing race. K
4. Place thrust washer selected in reverse clutch end play step on
reverse clutch drum.
CAUTION: L
Apply petroleum jelly to thrust washer.

SAT013F
M

5. Install oil pump assembly, baffle plate and gasket on transaxle

case.
CAUTION:
Do not reuse gasket.
6. Tighten oil pump bolts to the specified torque.

SAT012F

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 ASSEMBLY
[RE4F04B]
7. Install new O-ring to input shaft.
CAUTION:
● Do not reuse O-ring.

● Apply petroleum jelly to new O-ring.

SAT225F

8. Adjust brake band.

a. Tighten new anchor end pin to the specified torque using suit-
able tool.
Anchor end pin : Refer to AT-382, "BRAKE BAND" .
CAUTION:
Do not reuse anchor end pin.
b. Back off anchor end pin two and a half turns.
c. While holding anchor end pin, tighten lock nut.
Lock nut : Refer to AT-382, "BRAKE BAND" . SAT014FA

9. Apply compressed air to oil holes of transaxle case and check

operation of brake band.

SAT397D

10. Install final drive assembly on transaxle case.

SAT228F

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 ASSEMBLY
[RE4F04B]
11. Install differential lubricant tube on converter housing. Tighten
differential lubricant tube bolts to the specified torque. Refer to A
AT-278, "Components" .

AT

SAT063K

D
12. Install new O-ring on differential oil port of transaxle case.
CAUTION:
● Do not reuse O-ring. E
● Apply ATF to new O-ring.

G
SAT235F

13. Install converter housing on transaxle case. H

● Apply locking sealant to mating surface of converter
housing. Refer to GI-45, "Recommended Chemical Prod-
ucts and Sealants" . I

K
SAT371H

● Tighten converter housing bolts to the specified torque.

L
Refer to AT-278, "Components" .

SAT008F

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 ASSEMBLY
[RE4F04B]
14. Install accumulator piston.
a. Check contact surface of accumulator piston for damage.

SAT406DA

b. Install new O-rings on accumulator piston.

CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings.

Accumulator piston O-rings : Refer to AT-379,

"O-RING" .

SAT236FA

c. Install accumulator pistons and return springs on transaxle case.

CAUTION:
Apply ATF to inner surface of transaxle case.
Return springs : Refer to AT-379, "RETURN SPRING"
.

SAT237FA

15. Install new lip seals for band servo oil holes on transaxle case.
CAUTION:
● Do not reuse lip seals.

● Apply petroleum jelly to new lip seals.

SAT006F

16. Install L & R oil tube and new oil sleeve. Tighten L & R oil tube
bolts to the specified torque. Refer to AT-278, "Components" .
CAUTION:
Do not reuse oil sleeve.

SAT862HA

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 ASSEMBLY
[RE4F04B]

17. Install control valve assembly. A

a. Insert manual valve into control valve assembly.
CAUTION:
Apply ATF to manual valve. B

AT

SAT005F
D
b. Set manual shaft in Neutral position.
c. Install control valve assembly on transaxle case while aligning
E
manual valve with manual plate.
d. Pass solenoid harness through transaxle case and install termi-
nal body on transaxle case by pushing it.
F
e. Install stopper ring to terminal body.

SAT094J

f. Tighten bolts I , X and ● . H

Bolt length, number and location:

Bolt symbol I X ● I
43.5
Bolt length “ ” mm (in) 40 (1.57) 33 (1.30)
(1.713)
Number of bolts 5 6 2 J

SAT004F

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 ASSEMBLY
[RE4F04B]
18. Install oil pan.
a. Attach a magnet to oil pan.
b. Install new oil pan gasket on transaxle case.
c. Install oil pan on transaxle case.
CAUTION:
● Do not reuse oil pan bolts as they are self-sealing bolts.

● Tighten four bolts in a crisscross pattern to prevent dislo-

cation of gasket.
d. Tighten oil pan bolts and drain plug to the specified torque.
Refer to AT-278, "Components" . SAT003F

19. Install park/neutral position (PNP) switch.

a. Set manual shaft in P position.
b. Temporarily install PNP switch on manual shaft.
c. Move selector lever to N position.

SCIA3154E

d. Use a 4 mm (0.16 in) pin for this adjustment.

i. Insert the pin straight into the manual shaft adjustment hole.
ii. Rotate PNP switch until the pin can also be inserted straight into
hole in PNP switch.
e. Tighten PNP switch bolts. Refer to AT-278, "Components" .
f. Remove pin from adjustment hole after adjusting PNP switch.

SCIA3622E

20. Install A/T fluid charging pipe and fluid cooler tube with new O-
rings and new washers to transaxle case. Tighten A/T fluid
charging pipe and fluid cooler tube bolts to the specified torque.
Refer to AT-278, "Components" .
CAUTION:
Do not reuse O-rings and copper washers.

SAT768J

21. Install torque converter.

a. Pour ATF into torque converter.
CAUTION:
● Approximately 1 liter (1-1/8 US qt, 7/8 Imp qt) of fluid is
required for a new torque converter.
● When reusing old torque converter, add the same amount
of fluid as was drained.

SAT428DA

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 ASSEMBLY
[RE4F04B]
b. Install torque converter while aligning notches of torque con-
verter with notches of oil pump. A

AT

SAT429D
D
c. Measure distance “A” to check that torque converter is in proper
position.
E
Distance A : 14 mm (0.55 in) or more

G
SAT430D

Revision: November 2006 AT-377 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030

General Specifications ECS009BJ

Engine QR25DE
Automatic transaxle model RE4F04B
Automatic transaxle
Model code number 89X05
assembly
1st 2.785
2nd 1.545
3rd 1.000
Transaxle gear ratio
4th 0.694
Reverse 2.272
Final drive 4.425
Nissan Matic “D” (Continental U.S. and Alaska) or Canada Nissan Auto-
Recommended fluid
matic Transmission Fluid*

Fluid capacity (US qt, Imp qt) 9.2 (9.3/4, 8.1/8)

*: Refer to MA-12, "RECOMMENDED FLUIDS AND LUBRICANTS" .

Shift Schedule ECS009BK

VEHICLE SPEED WHEN SHIFTING GEARS THROTTLE POSITION — QR25DE MODEL

Throttle posi- Vehicle speed km/h (MPH)
Shift pattern
tion D1 → D2 D2 → D 3 D3 → D4 D4 → D3 D3 → D2 D2 → D1
52 - 60 97 - 105 153 - 161 149 - 157 87 - 95 39 - 47
Comfort
(32 - 37) (60 - 65) (95 - 100) (93 - 98) (54 - 59) (24 - 29)
Full throttle
52 - 60 97 - 105 153 - 161 149 - 157 87 - 95 39 - 47
Auto power
(35 - 40) (60 - 65) (95 - 98) (93 - 98) (54 - 59) (24 - 29)
28 - 36 57 - 65 121 - 129 61 - 69 32 - 40 15 - 23
Comfort
(17 - 22) (35 - 40) (75 - 80) (38 - 43) (20 - 25) (9 - 14)
Half throttle
38 - 46 72 - 80 121 - 129 61 - 69 43 - 51 15 - 23
Auto power
(24 - 29) (45 - 50) (75 - 80) (38 - 43) (27 - 32) (9 - 14)

VEHICLE SPEED WHEN PERFORMING AND RELEASING LOCK-UP — QR25DE MODEL

Unit: km/h (MPH)
Selector lever position D position 3 position
Shift pattern Comfort Auto power Comfort Auto power
Lock-up ″ON″ 86 - 94 (53 - 58) 86 - 94 (53 - 58) 86 - 94 (53 - 58) 86 - 94 (53 - 58)
Lock-up ″OFF″ 65 - 73 (41 - 46) 65 - 73 (41 - 46) 83 - 91 (52 - 57) 83 - 91 (52 - 57)
NOTE:
● Lock-up vehicle speed indicates the speed in D4 position.

● Perform lock-up inspection after warming up engine.

● Lock-up vehicle speed may vary depending on the driving conditions and circumstances.

Stall Revolution ECS009BL

Stall revolution
Engine
rpm
QR25DE 2,300 - 2,750

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 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Line Pressure ECS009BM

A
Line pressure kPa (kg/cm2 , psi)
Engine speed
rpm D, 2 and 1 positions R position
QR25DE QR25DE B
Idle 500 (5.1, 73) 778 (7.9, 113)
Stall 1,223 (12.6, 179) 1,918 (19.6, 278)
AT
Control Valves ECS009BN

CONTROL VALVE AND PLUG RETURN SPRINGS

Unit: mm (in) D
Item
Parts
Part No.* Free length Outer diameter
23 Pilot valve spring 31742-80L13 38.98 (1.535) 8.9 (0.350)
E

7 1-2 accumulator valve spring 31742-80L15 20.5 (0.807) 6.95 (0.274)

28 1-2 accumulator piston spring 31742-80L14 55.26 (2.176) 19.6 (0.772)
F
33 1st reducing valve spring 31742-80X05 27.0 (1.063) 7.0 (0.276)
Upper body 35 3-2 timing valve spring 31736-01X00 23.0 (0.906) 6.65 (0.262)
18 Overrun clutch reducing valve spring 31742-80L09 37.5 (1.476) 6.9 (0.272) G
16 Torque converter relief valve spring 31742-80L10 31.0 (1.220) 9.0 (0.354)
11 Torque converter clutch control valve 31742-80L16 56.98 (2.243) 6.5 (0.256)
H
3 Cooler check valve spring 31742-85X01 29.4 (1.157) 6.0 (0.236)
15 Pressure regulator valve spring 31742-80L01 45.0 (1.772) 15.0 (0.591)
20 Overrun clutch control valve spring 31762-80L00 21.7 (0.854) 7.0 (0.276) I
24 Accumulator control valve spring 31742-80L02 22.0 (0.866) 6.5 (0.256)
29 Shift valve A spring 31762-80L00 21.7 (0.854) 7.0 (0.276)
J
Lower body 32 Shuttle valve spring 31762-41X04 51.0 (2.008) 5.65 (0.222)
12 Shift valve B spring 31762-80L00 21.7 (0.854) 7.0 (0.276)
7 Pressure modifier valve spring 31742-80L03 30.5 (1.201) 9.8 (0.386) K
3 Pressure modifier piston spring 31742-80L04 32.0 (1.260) 6.9 (0.272)
— Oil cooler relief valve spring 31742-80L12 17.02 (0.670) 8.0 (0.315)
L
*: Always check with the Parts Department for the latest parts information.
**: This part is for model code number ″88X02″.

Accumulator ECS009BO
M
O-RING
Unit: mm (in)
Inner diameter Inner diameter
Accumulator Part No.* Part No.*
(Small) (Large)
Servo release accumulator 31526-41X03 26.9 (1.059) 31526-41X02 44.2 (1.740)
N-D accumulator 31526-31X08 34.6 (1.362) 31672-21X00 39.4 (1.551)
*: Always check with the Parts Department for the latest parts information.

RETURN SPRING
Unit: mm (in)
Accumulator Part number* Free length Outer diameter
Servo release accumulator 31605-85X00 62.8 (2.473) 21 (0.827)
N-D accumulator 31605-31X02 43.5 (1.713) 27.0 (1.063)
*: Always check with the Parts Department for the latest parts information.

Revision: November 2006 AT-379 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Clutch and Brakes ECS009BP

REVERSE CLUTCH
Model code number 89X05
Number of drive plates 2
Number of driven plates 2
Standard 1.6 (0.063)
Drive plate thickness mm (in)
Allowable limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.8 (0.070)
Standard 0.5 - 0.8 (0.020 - 0.031)
Clearance mm (in)
Allowable limit 1.2 (0.047)
Thickness mm (in) Part number*
6.6 (0.260) 31537-89X00
6.8 (0.268) 31537-89X01
Thickness of retaining plates 7.0 (0.276) 31537-89X02
7.2 (0.283) 31537-89X03
7.4 (0.291) 31537-89X04
7.6 (0.299) 31537-89X05
7.8 (0.307) 31537-89X06
*: Always check with the Parts Department for the latest parts information.

HIGH CLUTCH
Model code number 89X05
Number of drive plates 3
Number of driven plates 9*1 + 1*2
Standard 1.6 (0.063)
Drive plate thickness mm (in)
Allowable limit 1.4 (0.055)
*1 *2
Driven plate thickness mm (in) Standard
1.4 (0.055) 2.0 (0.079)
Standard 1.8 - 2.2 (0.071 - 0.087)
Clearance mm (in)
Allowable limit 2.8 (0.110)
Thickness mm (in) Part number*
3.0 (0.118) 31537-81X10
Thickness of retaining plates 3.2 (0.126) 31537-81X11
3.4 (0.134) 31537-81X12
3.6 (0.142) 31537-81X13
3.8 (0.150) 31537-81X14
*: Always check with the Parts Department for the latest parts information.

FORWARD CLUTCH
Model code number 89X05
Number of drive plates 5
Number of driven plates 5
Standard 1.6 (0.063)
Drive plate thickness mm (in)
Allowable limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.8 (0.071)
Standard 0.45 - 0.85 (0.0177 - 0.0335)
Clearance mm (in)
Allowable limit 1.85 (0.0728)

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 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Thickness mm (in) Part number*
A
3.2 (0.126) 31537-80L18
3.4 (0.134) 31537-80L17
Thickness of retaining plates 3.6 (0.142) 31537-80L12
3.8 (0.150) 31537-80L13 B
4.0 (0.157) 31537-80L14
4.2 (0.165) 31537-80L15
4.4 (0.173) 31537-80L16
*: Always check with the Parts Department for the latest parts information.
AT

OVERRUN CLUTCH
Model code number 89X05 D
Number of drive plates 3
Number of driven plates 5
E
Standard 1.6 (0.063)
Drive plate thickness mm (in)
Allowable limit 1.4 (0.055)
Driven plate thickness mm (in) Standard 1.8 (0.071) F
Standard 0.7 - 1.1 (0.028 - 0.043)
Clearance mm (in)
Allowable limit 1.7 (0.067)
Thickness mm (in) Part number*
G

3.0 (0.118) 31537-80L07

Thickness of retaining plates 3.2 (0.126) 31537-80L08
3.4 (0.134) 31537-80L09 H
3.6 (0.142) 31537-80L10
3.8 (0.150) 31537-80L11
*: Always check with the Parts Department for the latest parts information. I
LOW & REVERSE BRAKE
Model code number 89X05
J
Number of drive plates 6
Number of driven plates 6
Standard 1.8 (0.071) K
Drive plate thickness mm (in)
Allowable limit 1.6 (0.063)
Driven plate thickness mm (in) Standard 1.8 (0.071)
L
Standard 1.7 - 2.1 (0.067 - 0.083)
Clearance mm (in)
Allowable limit 3.3 (0.130)
Thickness mm (in) Part number* M
2.0 (0.079) 31667-80L00
2.2 (0.087) 31667-80L01
2.4 (0.094) 31667-80L02
Thickness of retaining plates 2.6 (0.102) 31667-80L03
2.8 (0.110) 31667-80L04
3.0 (0.118) 31667-80L05
3.2 (0.126) 31667-80L06
3.4 (0.134) 31667-80L07
*: Always check with the Parts Department for the latest parts information.

CLUTCH AND BRAKE RETURN SPRINGS

Unit: mm (in)
Parts Part number* Free length Outer diameter
Forward clutch (Overrun clutch)
31505-80X02 21.4 (0.843) 10.3 (0.406)
(22 pcs)
High clutch (18 pcs) 31505-89X04 20.0 (0.787) 8.3 (0.327)
Low & reverse brake (24 pcs) 31505-89X02 21.6 (0.850) 6.6 (0.260)

Revision: November 2006 AT-381 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
*: Always check with the Parts Department for the latest parts information.

BRAKE BAND
Anchor end pin tightening torque N-m (kg-m, in-lb) 4.0 - 5.8 (0.4 - 0.6, 36 - 52)
Number of returning revolutions for anchor end pin 2.5
Lock nut tightening torque N-m (kg-m, ft-lb) 31 - 36 (3.2 - 3.7, 23 - 27)

Final Drive ECS009BQ

DIFFERENTIAL SIDE GEAR CLEARANCE

Clearance between side gear and differential case with
0.1 - 0.2 (0.004 - 0.008)
washer mm (in)

DIFFERENTIAL SIDE GEAR THRUST WASHERS

Thickness mm (in) Part number*
0.75 (0.0295) 38424-81X00
0.80 (0.0315) 38424-81X01
0.85 (0.0335) 38424-81X02
0.90 (0.0354) 38424-81X03
0.95 (0.0374) 38424-81X04
*: Always check with the Parts Department for the latest parts information.

DIFFERENTIAL SIDE BEARING PRELOAD ADJUSTING SHIMS

Thickness mm (in) Part number*
0.48 (0.0189) 31438-80X00
0.52 (0.0205) 31438-80X01
0.56 (0.0220) 31438-80X02
0.60 (0.0236) 31438-80X03
0.64 (0.0252) 31438-80X04
0.68 (0.0268) 31438-80X05
0.72 (0.0283) 31438-80X06
0.76 (0.0299) 31438-80X07
0.80 (0.0315) 31438-80X08
0.84 (0.0331) 31438-80X09
0.88 (0.0346) 31438-80X10
0.92 (0.0362) 31438-80X11
*: Always check with the Parts Department for the latest parts information.

BEARING PRELOAD
Differential side bearing preload mm (in) 0.05 - 0.09 (0.0020 - 0.0035)

TURNING TORQUE
Turning torque of final drive assembly N-m (kg-cm, in-lb) 0.78 - 1.54 (8.0 - 15.7, 6.9 - 13.6)

Planetary Carrier and Oil Pump ECS009BR

PLANETARY CARRIER
Clearance between planetary carrier Standard 0.20 - 0.70 (0.0079 - 0.0276)
and pinion washer mm (in) Allowable limit 0.80 (0.0315)

OIL PUMP
Oil pump side clearance mm (in) 0.030 - 0.050 (0.0012 - 0.0020)

Revision: November 2006 AT-382 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Inner gear
A
Thickness mm (in) Part number*
11.99 - 12.0 (0.4720 - 0.4724) 31346-80L00
11.98 - 11.99 (0.4717 - 0.4720) 31346-80L01
11.97 - 11.98 (0.4713 - 0.4717) 31346-80L02 B
Thickness of inner gears and outer gears
Outer gear
Thickness mm (in) Part number*
AT
11.99 - 12.0 (0.4720 - 0.4724) 31347-80L00
11.98 - 11.99 (0.4717 - 0.4720) 31347-80L01
11.97 - 11.98 (0.4713 - 0.4717) 31347-80L02
D
Clearance between oil pump Standard 0.111 - 0.181 (0.0044 - 0.0071)
housing and outer gear mm
(in) Allowable limit 0.181 (0.0071)

Standard 0.1 - 0.25 (0.0039 - 0.0098) E

Oil pump cover seal ring
clearance mm (in) Allowable limit 0.25 (0.0098)
*: Always check with the Parts Department for the latest parts information.
F
Input Shaft ECS009BS

SEAL RING CLEARANCE

Input shaft seal ring clearance mm Standard 0.08 - 0.23 (0.0031 - 0.0091) G
(in) Allowable limit 0.23 (0.0091)

SEAL RING H
Outer diameter mm (in) Inner diameter mm (in) Width mm (in) Part number*
26 (1.024) 22.4 (0.882) 1.971 (0.078) 31525-80X02
I
*: Always check with the Parts Department for the latest parts information.

Reduction Pinion Gear ECS009BT

TURNING TORQUE J
Turning torque of reduction pinion gear N-m (kg-cm, in-lb) 0.05 - 0.39 (0.5 - 4.0, 0.43 - 3.47)

REDUCTION PINION GEAR BEARING ADJUSTING SHIMS K

NO. Thickness mm (in) Part number NO. Thickness mm (in) Part number*
1 5.00 (0.1969) 31439-81X00 18 5.34 (0.2102) 31439-81X17
2 5.02 (0.1976) 31439-81X01 19 5.36 (0.2110) 31439-81X18 L
3 5.04 (0.1984) 31439-81X02 20 5.38 (0.2118) 31439-81X19
4 5.06 (0.1992) 31439-81X03 21 5.40 (0.2126) 31439-81X20
M
5 5.08 (0.2000) 31439-81X04 22 5.42 (0.2134) 31439-81X21
6 5.10 (0.2008) 31439-81X05 23 5.44 (0.2142) 31439-81X22
7 5.12 (0.2016) 31439-81X06 24 5.46 (0.2150) 31439-81X23
8 5.14 (0.2024) 31439-81X07 25 5.48 (0.2157) 31439-81X24
9 5.16 (0.2031) 31439-81X08 26 5.50 (0.2165) 31439-81X46
10 5.18 (0.2039) 31439-81X09 27 5.52 (0.2173) 31439-81X47
11 5.20 (0.2047) 31439-81X10 28 5.54 (0.2181) 31439-81X48
12 5.22 (0.2055) 31439-81X11 29 5.56 (0.2189) 31439-81X49
13 5.24 (0.2063) 31439-81X12 30 5.58 (0.2197) 31439-81X60
14 5.26 (0.2071) 31439-81X13 31 5.60 (0.2205) 31439-81X61
15 5.28 (0.2079) 31439-81X14 32 5.62 (0.2213) 31439-81X62
16 5.30 (0.2087) 31439-81X15 33 5.64 (0.2220) 31439-81X63
17 5.32 (0.2094) 31439-81X16 34 5.66 (0.2228) 31439-81X64

Revision: November 2006 AT-383 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
NO. Thickness mm (in) Part number NO. Thickness mm (in) Part number*
35 5.68 (0.2236) 31439-81X65 50 4.70 (0.1850) 31439-85X06
36 5.70 (0.2244) 31439-81X66 51 4.72 (0.1858) 31439-83X11
37 5.72 (0.2252) 31439-81X67 52 4.74 (0.1866) 31439-83X12
38 5.74 (0.2260) 31439-81X68 53 4.76 (0.1874) 31439-83X13
39 5.76 (0.2268) 31439-81X69 54 4.78 (0.1882) 31439-83X14
40 5.78 (0.2276) 31439-81X70 55 4.80 (0.1890) 31439-83X15
41 5.80 (0.2283) 31439-81X71 56 4.82 (0.1898) 31439-83X16
42 5.82 (0.2291) 31439-81X72 57 4.84 (0.1906) 31439-83X17
43 5.84 (0.2299) 31439-81X73 58 4.86 (0.1913) 31439-83X18
44 5.86 (0.2307) 31439-81X74 59 4.88 (0.1921) 31439-83X19
45 4.60 (0.1811) 31439-85X01 60 4.90 (0.1929) 31439-83X20
46 4.62 (0.1819) 31439-85X02 61 4.92 (0.1937) 31439-83X21
47 4.64 (0.1827) 31439-85X03 62 4.94 (0.1945) 31439-83X22
48 4.66 (0.1835) 31439-85X04 63 4.96 (0.1953) 31439-83X23
49 4.68 (0.1843) 31439-85X05 64 4.98 (0.1961) 31439-83X24
*: Always check with the Parts Department for the latest parts information.

Band Servo ECS009BU

RETURN SPRING
Unit: mm (in)
Return spring Part number* Free length Outer diameter
2nd servo return spring 31605-80L05 32.5 (1.280) 25.9 (1.020)
OD servo return spring 31605-80L06 62.6 (2.465) 21.7 (0.854)
*: Always check with the Parts Department for the latest parts information.

Output Shaft ECS009BV

SEAL RING CLEARANCE

Output shaft seal ring clearance mm Standard 0.10 - 0.25 (0.0039 - 0.0098)
(in) Allowable limit 0.25 (0.0098)

SEAL RING
Outer diameter mm (in) Inner diameter mm (in) Width mm (in) Part number*
33.71 (1.327) 30.25 (1.191) 1.95 (0.077) 31525-80X09
*: Always check with the Parts Department for the latest parts information.

END PLAY
Output shaft end play mm (in) 0 - 0.15 (0 - 0.0059)

OUTPUT SHAFT ADJUSTING SHIMS

Thickness mm (in) Part number*
0.80 (0.0315) 31438-80X60
0.84 (0.0331) 31438-80X61
0.88 (0.0346) 31438-80X62
0.92 (0.0362) 31438-80X63
0.96 (0.0378) 31438-80X64
1.00 (0.0394) 31438-80X65
1.04 (0.0409) 31438-80X66
1.08 (0.0425) 31438-80X67
1.12 (0.0441) 31438-80X68
1.16 (0.0457) 31438-80X69
1.20 (0.0472) 31438-80X70
*: Always check with the Parts Department for the latest parts information.

Revision: November 2006 AT-384 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Bearing Retainer ECS009BW

SEAL RING CLEARANCE A

Bearing retainer seal ring Standard 0.10 - 0.30 (0.0039 - 0.0118)

clearance mm (in) Allowable limit 0.30 (0.0118)
B
Total End Play ECS009BX

Total end play mm (in) 0.25 - 0.55 (0.0098 - 0.0217)

AT
BEARING RACE FOR ADJUSTING TOTAL END PLAY
Thickness mm (in) Part number* D
0.8 (0.031) 31435-80X00
1.0 (0.039) 31435-80X01
1.2 (0.047) 31435-80X02
1.4 (0.055) 31435-80X03 E
1.6 (0.063) 31435-80X04
1.8 (0.071) 31435-80X05
2.0 (0.079) 31435-80X06
F
0.9 (0.035) 31435-80X09
1.1 (0.043) 31435-80X10
1.3 (0.051) 31435-80X11
1.5 (0.059) 31435-80X12 G
1.7 (0.067) 31435-80X13
1.9 (0.075) 31435-80X14
*: Always check with the Parts Department for the latest parts information.
H
Reverse Clutch End Play ECS009BY

Reverse clutch end play mm (in) 0.61 - 1.00 (0.0240 - 0.0394)

I
THRUST WASHERS FOR ADJUSTING REVERSE CLUTCH DRUM END PLAY
Thickness mm (in) Part number* J
0.80 (0.0315) 31508-80X13
0.95 (0.0374) 31508-80X14
1.10 (0.0433) 31508-80X15
1.25 (0.0492) 31508-80X16 K
1.40 (0.0551) 31508-80X17
1.55 (0.0610) 31508-80X18
1.70 (0.0669) 31508-80X19
L
1.85 (0.0728) 31508-80X20
*: Always check with the Parts Department for the latest parts information.

Removal and Installation ECS009BZ M

Unit: mm (in)
Distance between end of converter housing and torque converter 14 (0.55)

Shift Solenoid Valves ECS009C0

Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)

Solenoid Valves ECS009C1

Solenoid valves Resistance (Approx.) Ω Terminal No.

Shift solenoid valve A 20 - 30 2
Shift solenoid valve B 5 - 20 1
Overrun clutch solenoid valve 20 - 30 3

Revision: November 2006 AT-385 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE4F04B]
Line pressure solenoid valve 2.5 - 5 4
Torque converter clutch solenoid valve 5 - 20 5

A/T Fluid Temperature Sensor ECS009C2

Remarks: Specification data are reference values.

Monitor item Condition Specification (Approximately)
Cold [20°C (68°F)] 1.5V 2.5 kΩ
A/T fluid temperature sensor ↓ ↓ ↓
Hot [80°C (176°F)] 0.5V 0.3 kΩ

Revolution Sensor ECS009C3

Condition Judgement standard

When moving at 20 km/h (12 MPH), use the CONSULT-II pulse frequency measuring func-
tion.*1
CAUTION: 450 Hz (Approx.)
Connect the diagnosis data link cable to the vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this item.
When vehicle parks. Under 1.3V or over 4.5V

Dropping Resistor ECS009C4

Resistance 10 - 15 Ω

Turbine Revolution Sensor (Power Train Revolution Sensor) ECS009C5

Condition Judgement standard

When moving at 20 km/h (12 MPH), use the CONSULT-II pulse frequency measuring func-
tion.*1
CAUTION: 240 Hz (Approx.)
Connect the diagnosis data link cable to the vehicle diagnosis connector.
*1: A circuit tester cannot be used to test this item.
When vehicle parks. Under 1.3V or over 4.5V

Revision: November 2006 AT-386 2006 Altima

 INDEX FOR DTC
[RE5F22A]
INDEX FOR DTC PFP:00024
A
Alphabetical Index ECS009C6

NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-471 .
DTC
OBD-II Except OBD-II AT
Items
Reference page
(CONSULT-II screen terms) CONSULT-II CONSULT-II
only “TRANSMIS-
GST*1 SION” D
A/T 1ST GR FNCTN P0731 P0731 AT-503
A/T 2ND GR FNCTN P0732 P0732 AT-506
A/T 3RD GR FNCTN P0733 P0733 AT-512
E

A/T 4TH GR FNCTN P0734 P0734 AT-518

A/T 5TH GR FNCTN P0735 P0735 AT-523
F
A/T TCC S/V FNCTN P0744 P0744 AT-529
ATF TEMP SEN/CIRC P0710 P0710 AT-483
CAN COMM CIRCUIT U1000 U1000 AT-471 G
ELEC TH CONTROL — P1726 AT-597
ENG SPD INP PERFOR — P0726 AT-501
H
FLUID TEMP SEN P0711 P0711 AT-488
MANUAL MODE SWITCH — P0826 AT-586
PC SOL A(L/PRESS) P0745 P0745 AT-532 I
PC SOL B(SFT/PRS) P0775 P0775 AT-567
PC SOL C(TCC&SFT) P0795 P0795 AT-576
J
PC SOL C STC ON P0797 P0797 AT-581
PNP SW/CIRC P0705 P0705 AT-478
SHIFT P0780 P0780 AT-572 K
SHIFT SOL A P0750 P0750 AT-537
SHIFT SOL B P0755 P0755 AT-542
L
SHIFT SOL C P0760 P0760 AT-547
SHIFT SOL D P0765 P0765 AT-557
SHIFT SOL E P0770 P0770 AT-562 M
SFT SOL C STUCK ON P0762 P0762 AT-552
TCM POWER INPT SIG P0882 P0882 AT-592
TCM PROCESSOR — P0613 AT-476
TURBINE SENSOR P0717 P0717 AT-493
VEH SPD SE/CIR-MTR — P0500 AT-474
VHCL SPEED SEN-A/T P0722 P0722 AT-497
*1: These numbers are prescribed by SAE J2012.

Revision: November 2006 AT-387 2006 Altima

 INDEX FOR DTC
[RE5F22A]
DTC No. Index ECS009C7

NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
AT-471 .
DTC
OBD-II Except OBD-II
Items
Reference page
CONSULT-II CONSULT-II (CONSULT-II screen terms)
only “TRANSMIS-
GST*1 SION”
— P0500 VEH SPD SE/CIR-MTR AT-474
— P0613 TCM PROCESSOR AT-476
P0705 P0705 PNP SW/CIRC AT-478
P0710 P0710 ATF TEMP SEN/CIRC AT-483
P0711 P0711 FLUID TEMP SEN AT-488
P0717 P0717 TURBINE SENSOR AT-493
P0722 P0722 VHCL SPEED SEN-A/T AT-497
— P0726 ENG SPD INP PERFOR AT-501
P0731 P0731 A/T 1ST GR FNCTN AT-503
P0732 P0732 A/T 2ND GR FNCTN AT-506
P0733 P0733 A/T 3RD GR FNCTN AT-512
P0734 P0734 A/T 4TH GR FNCTN AT-518
P0735 P0735 A/T 5TH GR FNCTN AT-523
P0744 P0744 A/T TCC S/V FNCTN AT-529
P0745 P0745 PC SOL A(L/PRESS) AT-532
P0750 P0750 SHIFT SOL A AT-537
P0755 P0755 SHIFT SOL B AT-542
P0760 P0760 SHIFT SOL C AT-547
P0762 P0762 SFT SOL C STUCK ON AT-552
P0765 P0765 SHIFT SOL D AT-557
P0770 P0770 SHIFT SOL E AT-562
P0775 P0775 PC SOL B(SFT/PRS) AT-567
P0780 P0780 SHIFT AT-572
P0795 P0795 PC SOL C(TCC&SFT) AT-576
P0797 P0797 PC SOL C STC ON AT-581
— P0826 MANUAL MODE SWITCH AT-586
P0882 P0882 TCM POWER INPT SIG AT-592
— P1726 ELEC TH CONTROL AT-597
U1000 U1000 CAN COMM CIRCUIT AT-471
*1: These numbers are prescribed by SAE J2012.

Revision: November 2006 AT-388 2006 Altima

 PRECAUTIONS
[RE5F22A]
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” ECS009C8

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along B
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front AT
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: D
● To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer. E
● Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
G
Precautions for On Board Diagnostic (OBD) System of A/T and Engine ECS009C9

The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration. H
CAUTION:
● Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, I
etc. will cause the MIL to light up.
● Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease, J
dirt, bent terminals, etc.)
● Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit. K
● Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.
● Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and L
ECM before returning the vehicle to the customer.

Revision: November 2006 AT-389 2006 Altima

 PRECAUTIONS
[RE5F22A]
Precautions for A/T Assembly or TCM Replacement ECS009CA

● When replacing A/T assembly or TCM, refer to the pattern table below and initialize TCM if necessary.
TCM INITIALIZATION PATTERNS
TCM A/T assembly Erasing EEPROM in TCM Remarks
Not replaced
Replaced with Not required because the EEPROM in TCM is in the default
Replaced with Not required
new one state.
new or old one
Replaced with
Not replaced
new or old one
Required because data cannot be conformed to previous
Not replaced Required
Replaced with data written in the EEPROM in TCM.
old one Replaced with
new or old one
NOTE:
“Old one” is the TCM or A/T assembly that has been used on other vehicles.

METHOD FOR TCM INITIALIZATION

1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT-462, "CONSULT-II SETTING PROCE-
DURE" .
2. Set the vehicle following the items listed below.
● Ignition switch “ON”.

● Selector lever “P” or “N” position.

● Engine not running.

● Vehicle speed is 0 km/h (0 MPH).

● Ignition voltage is more than 10.5V.

● Malfunction was not detected.

3. Touch “WORK SUPPORT”.

4. Touch “INITIALIZATION”.
5. Initialize TCM following the direction in display.

Revision: November 2006 AT-390 2006 Altima

 PRECAUTIONS
[RE5F22A]
Precautions ECS009CB

A
● Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch “OFF” and disconnect negative
battery cable. Because battery voltage is applied to TCM
even if ignition switch is turned “OFF”. B

AT

D
SEF289H

● When connecting or disconnecting pin connectors into or E

from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors. F

SEF291H
H

● Before replacing TCM, perform TCM input/output signal

inspection and make sure whether TCM functions properly I
or not. AT-460, "TCM INSPECTION TABLE".

MEF040DA

L
● After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”. M
The DTC should not be displayed in the “DTC CONFIRMA-
TION PROCEDURE” if the repair is completed.

SEF217U

● Always use the specified brand of A/T fluid. Refer to MA-12, "Fluids and Lubricants" .
● Use paper rags not cloth rags during work.
● After replacing the A/T fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
● Before proceeding with disassembly, thoroughly clean the outside of the transaxle. It is important to pre-
vent the internal parts from becoming contaminated by dirt or other foreign matter.
● Disassembly should be done in a clean work area.

Revision: November 2006 AT-391 2006 Altima

 PRECAUTIONS
[RE5F22A]
● Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transaxle.
● Place disassembled parts in order for easier and proper assembly.
● All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
● Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.
● It is very important to perform functional tests whenever they are indicated.
● The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.
● Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
● Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.
● Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
● After overhaul, refill the transaxle with new ATF.
● When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to AT-398, "A/T FLUID" .

Revision: November 2006 AT-392 2006 Altima

 PRECAUTIONS
[RE5F22A]
Service Notice or Precautions ECS009CC

ATF COOLER SERVICE A

If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning pro- B
cedure. For radiator replacement, refer to CO-13, "RADIATOR" .
OBD-II SELF-DIAGNOSIS
● A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through AT
the blinking pattern of the A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table
on AT-463, "SELF-DIAG RESULT MODE" for the indicator used to display each self-diagnostic result.
● The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem- D
ories.
Always perform the procedure on AT-428, "HOW TO ERASE DTC" to complete the repair and
avoid unnecessary blinking of the MIL. E
● For details of OBD-II, refer to EC-653, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
● Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-66, "HAR- F
NESS CONNECTOR" .

Revision: November 2006 AT-393 2006 Altima

 PREPARATION
[RE5F22A]
PREPARATION PFP:00002

Special Service Tools ECS009CE

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.)
Tool name
(J-34301-C) Measuring line pressure
Oil pressure gauge set
1 (J-34301-1)
Oil pressure gauge
2 (J-34301-2)
Hoses
3 (J-34298)
Adapter
4 (J-34282-2)
Adapter
5 (790-301-1230-A) AAT896

60° Adapter
6 (J-34301-15)
Square socket
KV311J0010 Measuring line pressure
(J-45542)
Adapter

SCIA3019E

KV991J0060 Adjusting park/neutral position (PNP) switch

(J-45404)
Alignment tool

SCIA3018E

ST33290001 ● Removing oil pump assembly

(J-34286) ● Removing thrust roller bearing
Puller
a: 250 mm (9.84 in)
b: 160 mm (6.30in)

NT414

ST33400001 Installing differential side oil seals

(J-26082) a: 60 mm (2.36 in) dia.
Drift b: 74 mm (1.85 in) dia.

NT086

KV31102400 Removing and installing return springs

(J-34285 and J-34285-87) a: 320 mm (12.60 in)
Clutch spring compressor b: 174 mm (6.85 in)

NT423

Revision: November 2006 AT-394 2006 Altima

 PREPARATION
[RE5F22A]
Tool number Description
(Kent-Moore No.) A
Tool name
ST30720000 ● Installing oil seal
(J-25405) ● Installing tapered roller bearing B
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
AT

NT115

ST30612000 Removing outer race and adjust shim D

(J-25742-2) a: 62 mm (2.44 in) dia.
Drift b: 40 mm (1.57 in) dia.

NT073

ST3127S000 Checking differential side bearing preload

F
(J-25765-A)
Preload gauge
1 GG91030000 G
(J-25765-A)
Torque wrench
2 HT62940000
( — ) H
Socket adapter
3 HT62900000 NT124

( — )
Socket adapter I
KV40102500 Checking side differential bearing preload
(J-28815) a: 60 mm (2.362 in) dia.
Drift b: 45 mm (1.772 in) J

K
WCIA0381E

ST33061000 ● Removing tapered roller bearing

(J-8107-2) ● Installing manual valve oil seal L
Drift
a: 38.0 mm (1.496 in) dia.
b: 28.5 mm (1.122 in) dia.
M
NT073

KV38100500 Installing tapered roller bearing

( — ) a: 80 mm (3.15 in) dia.
Drift b: 60 mm (2.362 in) dia.

NT115

Revision: November 2006 AT-395 2006 Altima

 PREPARATION
[RE5F22A]
Tool number Description
(Kent-Moore No.)
Tool name
KV40100621 Installing outer race and adjust shim
(J-25273) a: 76 mm (2.992 in) dia.
Drift

WCIA0382E

ST30022000 Installing outer race and adjust shim

( — ) a: 56 mm (2.205 in) dia.
Drift b: 110 mm (4.331 in) dia.
c: 15 mm (0.591 in) dia.

WCIA0383E

Revision: November 2006 AT-396 2006 Altima

 PREPARATION
[RE5F22A]
Commercial Service Tools ECS009CF

A
Tool name Description
Power tool Loosening bolts and nuts
B

AT
PBIC0190E

Puller Removing tapered roller bearing

D

NT077

Puller Removing tapered roller bearings F

a: 60 mm (2.36 in) dia.
b: 35 mm (1.38 in) dia.

NT411
H

Revision: November 2006 AT-397 2006 Altima

 A/T FLUID
[RE5F22A]
A/T FLUID PFP:KLE40

Changing A/T Fluid ECS00EMN

1. Run the engine to warm up the transaxle until the fluid is at full operating temperature “HOT”.
Temperature range
COLD : 30° – 40° C (86° – 104° F)
HOT : 70° – 80° C (158° – 176° F)
2. Stop the engine.
3. Remove the engine undercover.
4. Drain the A/T fluid by removing the drain plug. Reinstall the drain
plug to the specified torque using a new drain washer.
Drain plug : Refer to AT-631, "REMOVAL AND
INSTALLATION" .

LLIA0066E

5. Refill the transaxle with new specified A/T fluid through the A/T fluid charging pipe. Always refill the tran-
saxle with the same volume amount that was drained out.
CAUTION:
Do not overfill the transaxle.
Fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants" .
6. Run the engine at idle speed for five minutes.
7. Check fluid level and condition. Refer to AT-398, "Checking A/T Fluid" . If the fluid is still contaminated,
repeat step 2 through 5.
Checking A/T Fluid ECS00EMO

1. Warm up the engine.

2. Check for any transaxle fluid leaks.
3. Before driving, the fluid level can be checked at fluid tempera-
ture using the “COLD” range on the A/T fluid level gauge.
Temperature range
COLD : 30° – 40° C (86° – 104° F)
HOT : 70° – 80° C (158° – 176° F)

WLIA0014E

a. Park the vehicle on a level surface and set parking brake.

b. Start the engine and move the transaxle selector lever through each gear position. Leave the selector
lever in the “P” park position.

Revision: November 2006 AT-398 2006 Altima

 A/T FLUID
[RE5F22A]
c. Check the fluid level with the engine idling.
CAUTION: A
Firmly secure the A/T fluid level gauge into the A/T fluid
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge. B

AT

LLIA0065E

D
d. Remove the A/T fluid level gauge and wipe it clean with a lint-free paper.
e. Re-insert the A/T fluid level gauge into the charging pipe as far as it will go.
f. Remove the A/T fluid level gauge and note the reading. If the reading is at or below the low side of the E
range, add the necessary specified A/T fluid through the A/T fluid charging pipe and then re-insert the A/T
fluid level gauge.
CAUTION: F
● Do not overfill the transaxle.

● Firmly secure the A/T fluid level gauge into the A/T fluid charging pipe using the attached stop-
per, this will provide an accurate reading on the gauge, and will keep the gauge in position while G
driving.
4. Drive the vehicle for approximately 5 minutes at moderate speeds.
5. Re-check the fluid level at fluid temperatures using the “HOT” H
range on the A/T fluid level gauge.
CAUTION:
Firmly secure the A/T fluid level gauge into the A/T fluid
I
charging pipe using the attached stopper, this will provide
an accurate reading on the gauge, and will keep the gauge
in position while driving.
J
Temperature range
COLD : 30° – 40° C (86° – 104° F)
HOT : 70° – 80° C (158° – 176° F) WLIA0014E K
6. Check the fluid for the following conditions:
● If the fluid is very dark or smells burned, refer to AT-598,
L
"TROUBLE DIAGNOSIS FOR SYMPTOMS" , for checking
the operation of the transaxle. Flush the A/T fluid cooling sys-
tem after completing any necessary repairs of the transaxle.
Refer to AT-399, "A/T Fluid Cooler Cleaning" . M
● If the fluid contains frictional material (from the clutches or
bands), clean the A/T fluid cooler after completing any neces-
sary repairs to the transaxle. Refer to AT-399, "A/T Fluid
Cooler Cleaning" .
SMA853B

A/T Fluid Cooler Cleaning ECS00EMP

Whenever an automatic transaxle is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.

Revision: November 2006 AT-399 2006 Altima

 A/T FLUID
[RE5F22A]
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any A/T fluid that remains in the cooler hoses to drain into
the oil pan.

SCIA5628E

5. Insert the extension adapter hose of a can of Transmission

Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

6. Hold the hose and can as high as possible and spray Transmis- SCIA5629E
sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.

SCIA5630E

9. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through the cooler outlet hose for 10 sec-
onds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transaxle by spraying Transmission Cooler
Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi) through each steel line from the cooler side
back toward the transaxle for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform AT-400, "A/T FLUID COOLER DIAGNOSIS PROCEDURE" .
A/T FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the automatic transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.

Revision: November 2006 AT-400 2006 Altima

 A/T FLUID
[RE5F22A]
3. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out- A
let hose.
CAUTION:
● Wear safety glasses and rubber gloves when spraying B
the Transmission Cooler Cleaner.
● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin. AT

● Do not breath vapors or spray mist.

4. Hold the hose and can as high as possible and spray Transmis- SCIA5629E
sion Cooler Cleaner in a continuous stream into the cooler outlet D
hose until fluid flows out of the cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose. E

SCIA5631E

H
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
I
8. Blow compressed air regulated to 5 - 9 kg/cm2 (70 - 130 psi)
through the cooler outlet hose to force any remaining A/T fluid
into the coffee filter. J
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform AT-401, "A/T FLUID COOLER INSPECTION PROCE-
DURE" . K
SCIA5632E

A/T FLUID COOLER INSPECTION PROCEDURE

1. Inspect the coffee filter for debris. L
a. If small metal debris less than 1mm (0.040 in) in size or metal
powder is found in the coffee filter, this is normal. If normal
debris is found, the A/T fluid cooler/radiator can be re-used and M
the procedure is ended.

SCIA2967E

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 A/T FLUID
[RE5F22A]
b. If one or more pieces of debris are found that are over 1mm
(0.040 in) in size and/or peeled clutch facing material is found in
the coffee filter, the fluid cooler is not serviceable. The A/T fluid
cooler/radiator must be replaced and the inspection procedure is
ended. Refer to CO-34, "RADIATOR" .

SCIA5659E

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.

Revision: November 2006 AT-402 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
A/T CONTROL SYSTEM PFP:31036
A
Cross-Sectional View ECS009CI

AT

SCIA2575E

1. Converter housing 2. 2nd brake 3. One-way clutch No. 2

4. Control valve assembly 5. Side cover 6. 1st and reverse brake
7. Forward clutch 8. Direct clutch 9. Transaxle case cover
10. B5 brake 11. Transaxle case 12. U/D clutch
13. U/D brake 14. Final gear 15. Differential case
16. Output shaft 17. Counter driven gear 18. Counter drive gear
19. Input shaft 20. Oil pump 21. One-way clutch No. 1
22. 2nd coast brake 23. Torque converter 24. Main rear planetary gear
25. Main front planetary gear 26. U/D rear planetary gear 27. U/D front planetary gear

Revision: November 2006 AT-403 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
Shift Mechanism ECS009CJ

CONSTRUCTION

SCIA2576E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-404 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
FUNCTION OF CLUTCH AND BRAKE
Clutch and brake components Abbr. Function
A

Forward clutch 1 F/C Connect input shaft 20 to main rear internal gear 10 .
Direct clutch 2 D/C Connect input shaft 20 to main sun gear 11 . B
U/D clutch 3 U/D.C Connect U/D sun gear 15 to U/D front planetary carrier 16 .
2nd coast brake 4 2nd C/B Lock main sun gear 11 .
2nd brake 5 2nd/B Lock counterclockwise rotation of main sun gear 11 . AT
1st and reverse brake 6 1st & R/B Lock main front internal gear 13 .
U/D brake 7 U/D.B Lock U/D sun gear 15 .
D
B5 brake 8 B5/B Lock U/D rear planetary carrier 18 .
One-way clutch No. 1 9 O.C1 Lock counterclockwise rotation of main sun gear 11 , when 2nd brake 5 oper-
ations. E
One-way clutch No. 2 10 O.C2 Lock counterclockwise rotation of main front internal gear 13 .

CLUTCH AND BAND CHART

F
Clutch Brake One-way clutch

Shift position 2nd C/ 1st & Remarks

F/C D/C U/D.C 2nd/B U/D.B B5/B O.C1 O.C2
B R/B
1 2 3 5 7 8 9 10 G
4 6
PARK
P
POSITION
H
REVERSE
R
POSITION
NEUTRAL
N I
POSITION

1st

1⇔2 J
2nd

2⇔3 K
Automatic shift
D 3rd 1⇔2⇔3⇔
4⇔5
3⇔4 L
4th

4⇔5
M
5th

Locks in 5th
M5 5th
gear*
Locks in 4th
M4 4th
gear*
Locks in 3rd
M3 3rd
gear*
Locks in 2nd
M2 2nd
gear*
Locks in 1st
M1 1st
gear*

: Operates
: In transition between applied and released.
*: Except when automated up/down shift control and up/down shift permission control are activated. Refer to AT-424, "MANUAL MODE"
.

Revision: November 2006 AT-405 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
POWER TRANSMISSION
“N” position
Since both the forward clutch and the direct clutch are released, torque from the input shaft drive is not trans-
mitted to the output shaft.
“P” position
● The same as for the “N” position, both the forward clutch and the direct clutch are released, so torque
from the input shaft drive is not transmitted to the output shaft.
● The parking pole linked with the selector lever meshes with the parking gear and fastens the output shaft
mechanically.

SCIA2577E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-406 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“D” position 1st gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Main rear internal gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.
6. Main front small planetary pinion gear rotates itself counterclockwise.
AT
7. Main front internal gear is going to rotates counterclockwise.
8. One-way clutch No. 2 operates. (Lock counterclockwise rotation of main front internal gear.)
9. Main planetary carrier revolves clockwise due to reaction force of front small planetary pinion gear. D
10. Counter drive gear rotates clockwise for main planetary carrier and one.
11. Counter driven gear rotates counterclockwise.
12. U/D front internal gear rotates counterclockwise for counter driven gear and one. E
13. U/D front planetary pinion gear rotates itself counterclockwise.
14. U/D sun gear rotates clockwise.
F
15. U/D rear planetary pinion gear rotates itself counterclockwise.
16. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)
17. U/D rear internal gear rotates counterclockwise. G
18. U/D front planetary carrier and output shaft rotates counterclockwise for U/D rear internal gear and one.
19. Final gear clockwise.
● During deceleration, main front internal gear clockwise due to rotation itself clockwise of main front small H
planetary pinion gear, but driving force loses due to free of one-way clutch No. 2. Therefore, engine brake
does not operate.
I

Revision: November 2006 AT-407 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2585E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-408 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“M1” position 1st gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Main rear internal gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion gear and one.
6. Main front small planetary pinion gear rotates itself counterclockwise.
AT
7. Main front internal gear is going to rotates counterclockwise.
8. 1st and reverse brake operates. (Lock rotation of main front internal gear.)
9. Main planetary carrier revolves clockwise due to reaction force of front small planetary pinion gear. D
10. Counter drive gear rotates clockwise for main planetary carrier and one.
11. Counter driven gear rotates counterclockwise.
12. U/D front internal gear rotates counterclockwise for counter driven gear and one. E
13. U/D front planetary pinion gear rotates itself counterclockwise.
14. U/D sun gear rotates clockwise.
F
15. U/D rear planetary pinion gear rotates itself counterclockwise.
16. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)
17. U/D rear internal gear rotates counterclockwise. G
18. U/D front planetary carrier and output shaft rotates counterclockwise for U/D rear internal gear and one.
19. Final gear clockwise.
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore, H
engine brake operates.

Revision: November 2006 AT-409 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2586E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-410 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“D”, “M2” positions 2nd gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Main rear internal gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.
6. 2nd brake and 2nd coast brake operates.
AT
7. One-way clutch No. 1 operates. (Lock rotation of main sun gear.)
8. Main planetary carrier revolves clockwise due to reaction force of front large planetary pinion gear.
9. Counter drive gear rotates clockwise for main planetary carrier and one. D
10. Counter driven gear rotates counterclockwise.
11. U/D front internal gear rotates counterclockwise for counter driven gear and one.
12. U/D front planetary pinion gear rotates itself counterclockwise. E
13. U/D sun gear rotates clockwise.
14. U/D rear planetary pinion gear rotates itself counterclockwise.
F
15. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)
16. U/D rear internal gear rotates counterclockwise.
17. U/D front planetary carrier and output shaft rotates counterclockwise for U/D rear internal gear and one. G
18. Final gear clockwise.
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore,
engine brake operates. H

Revision: November 2006 AT-411 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2587E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-412 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“D”, “M3” positions 3rd gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Main rear internal gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.
6. 2nd brake and 2nd coast brake operates.
AT
7. One-way clutch No. 1 operates. (Lock rotation of main sun gear.)
8. Main planetary carrier revolves clockwise due to reaction force of front large planetary pinion gear.
9. Counter drive gear rotates clockwise for main planetary carrier and one. D
10. Counter driven gear rotates counterclockwise.
11. U/D front internal gear rotates counterclockwise for counter driven gear and one.
12. U/D front planetary pinion gear rotates itself counterclockwise. E
13. U/D brake operate. (Lock rotation of U/D sun gear.)
14. U/D front planetary carrier revolves counterclockwise due to reaction force of U/D front planetary pinion
gear. F
15. U/D rear internal gear and output shaft rotates counterclockwise for U/D front planetary carrier and one.
16. Final gear clockwise.
G
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore,
engine brake operates.

Revision: November 2006 AT-413 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2588E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-414 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“D”, “M4” positions 4th gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Main rear internal gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.
6. 2nd brake and 2nd coast brake operates.
AT
7. One-way clutch No. 1 operates. (Lock rotation of main sun gear.)
8. Main planetary carrier revolves clockwise due to reaction force of front large planetary pinion gear.
9. Counter drive gear rotates clockwise for main planetary carrier and one. D
10. Counter driven gear rotates counterclockwise.
11. U/D front internal gear rotates counterclockwise for counter driven gear and one.
12. U/D clutch operate. (Connect U/D sun gear to U/D front planetary carrier.) E
13. U/D front planetary pinion gear cannot rotate itself, and U/D unit rotates counterclockwise as one.
14. Output shaft rotates counterclockwise for U/D unit and one.
F
15. Final gear clockwise.
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore,
engine brake operates.
G

Revision: November 2006 AT-415 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2592E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-416 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“D”, “M5” positions 5th gear
1. Input shaft rotates clockwise. A
2. Forward clutch operates. (Connect input shaft to main rear internal gear.)
3. Direct clutch operates. (Connect input shaft to main sun gear.)
B
4. Main rear planetary pinion gear cannot rotate itself, and main rear planetary unit rotates clockwise as one.
5. Main front large planetary pinion gear cannot rotate itself for main rear planetary pinion gear and one, and
main front planetary unit rotates clockwise as one.
AT
6. Counter drive gear rotates clockwise for main front planetary unit and one.
7. Counter driven gear rotates counterclockwise.
8. U/D front internal gear rotates counterclockwise for counter driven gear and one. D
9. U/D clutch operate. (Connect U/D sun gear to U/D front planetary carrier.)
10. U/D front planetary pinion gear cannot rotate itself, and U/D unit rotates counterclockwise as one.
11. Output shaft rotates counterclockwise for U/D unit and one. E
12. Final gear clockwise.
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore,
engine brake operates. F

Revision: November 2006 AT-417 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2593E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-418 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
“R” position
1. Input shaft rotates clockwise. A
2. Direct clutch operates. (Connect input shaft to main sun gear.)
3. Main sun gear rotates clockwise.
B
4. Main rear planetary pinion gear rotates itself clockwise.
5. Main front large planetary pinion gear rotates itself counterclockwise for rear planetary pinion gear and
one.
AT
6. Main front small planetary pinion gear rotates itself clockwise.
7. 1st and reverse brake operates. (Lock rotation of main front internal gear.)
8. Main planetary carrier revolves counterclockwise due to reaction force of front small planetary pinion gear. D
9. Counter drive gear rotates counterclockwise for main planetary carrier and one.
10. Counter driven gear rotates clockwise.
11. U/D front internal gear rotates clockwise for counter driven gear and one. E
12. U/D front planetary pinion gear rotates itself clockwise.
13. U/D sun gear rotates counterclockwise.
14. U/D rear planetary pinion gear rotates itself clockwise. F
15. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)
16. U/D rear internal gear rotates clockwise.
G
17. U/D front planetary carrier and output shaft rotates clockwise for U/D rear internal gear and one.
18. Final gear counterclockwise.
● During deceleration, driving force is connected to input shaft directly without one-way clutch. Therefore, H
engine brake operates.

Revision: November 2006 AT-419 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]

SCIA2594E

1. Forward clutch 2. Direct clutch 3. U/D clutch

4. 2nd coast brake 5. 2nd brake 6. 1st and reverse brake
7. U/D brake 8. B5 brake 9. One-way clutch No. 1
10. One-way clutch No. 2 11. Main sun gear 12. Main planetary carrier
13. Main front internal gear 14. Main rear internal gear 15. U/D sun gear
16. U/D front planetary carrier 17. U/D front internal gear 18. U/D rear planetary carrier
19. U/D rear internal gear 20. Input shaft 21. Counter drive gear
22. Counter driven gear 23. Output shaft 24. Parking gear
25. Parking pawl

Revision: November 2006 AT-420 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
TCM Function ECS009CK

A
The function of the TCM is to:
● Receive input signals sent from various switches and sensors.
● Determine required line pressure, shifting point, lock-up operation, and engine brake operation. B
● Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transaxle senses vehicle operating conditions through various sensors or signals. It always AT
controls the optimum shift position and reduces shifting and lock-up shocks.
SENSORS (or SIGNAL) TCM ACTUATORS
D
PNP switch
Shift control
Throttle angle signal Shift solenoid valve A
Line pressure control
Throttle position signal Shift solenoid valve B
Lock-up control
Engine speed signal
Engine brake control
Shift solenoid valve C E
Engine torque signal Þ Þ Shift solenoid valve D
Timing control
A/T fluid temperature sensor Shift solenoid valve E
Fail-safe control
Revolution sensor Pressure control solenoid valve A
Self-diagnosis
Turbine revolution sensor Pressure control solenoid valve B F
CONSULT-II communication line
Vehicle speed signal Pressure control solenoid valve C
CAN communication line
Manual mode switch signal A/T CHECK indicator lamp
On board diagnosis
Stop lamp switch signal
G
CONTROL SYSTEM DIAGRAM

WCIA0445E

Revision: November 2006 AT-421 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
Input/Output Signal of TCM ECS009CL

Line Vehicle Engine Fail-safe Self-diag-

Shift Lock-up
Control item pressure speed brake function nostics
control control
control control control (*3) function

Throttle angle signal(*5) X X X X X X X

Throttle position signal(*5) X(*2) X(*2) X X(*2) X(*4)

Revolution sensor X X X X X X X
Turbine revolution sensor X X X X X X
(*1) (*5) X X X X X X
Vehicle speed signal MTR

Engine speed signals(*5) X X X X X

Engine torque signals(*5) X X X X X X

Input
PNP switch X X X X X X X(*4)
Manual mode switch X X X X X

Stop lamp switch signal(*5) X X X X(*4)

A/T fluid temperature sensor X X X X X X

Operation signal(*5) X X X
ASCD
Overdrive cancel signal(*5) X X X
TCM power supply voltage signal X X X X X X X
Shift solenoid valve A/B/C/D/E X X X X
Pressure control solenoid valve A X X X X X X X
Out- Pressure control solenoid valve B X X X X X
put
Pressure control solenoid valve C X X X X
(*5) X
Self-diagnostics table
*1: Spare for revolution sensor
*2: Spare for throttle angle signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.
*5: CAN communications.

CAN Communication ECS009CM

SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to LAN-20, "CAN COMMUNICATION" .

Revision: November 2006 AT-422 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
Line Pressure Control ECS009CN

A
● The pressure control solenoid valve A controls linear line pressure by control signal from TCM and line
pressure for clutches and brakes to reduce shift shock.
● This pressure control solenoid valve A controls the pressure regulator valve as the signal pressure and
adjusts the pressure of the operating oil discharged from the oil pump to the line pressure most appropri- B
ate to the driving state.

AT

SCIA2605E

LINE PRESSURE CONTROL IS BASED ON THE TCM LINE PRESSURE CHARACTERISTIC H

PATTERN
In order to obtain the most appropriate line pressure characteristic to meet the current driving state, the TCM
controls the pressure control solenoid valve A current and thus controls the line pressure. I

Shift Control ECS009CO

The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the J
clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes
possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change charac-
teristic is attained.
K

SCIA2610E

Basically TCM programmed for economy mode, but TCM changes to several shift schedule automatically
according to specified condition.

Revision: November 2006 AT-423 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
SPECIAL SHIFT MODE
Upslope Mode
When TCM detects upslope from load of engine torque and decrease of acceleration, this mode changes shift
points in high-speed side according to the upslope degree and avoids busy shift of A/T.
Downslope Mode
When TCM detects downslope from increase of acceleration with accelerator full close, this mode operates
moderate engine brake by changing shift points in high-speed side.
Hot Mode Control
This control lowers ATF temperature by changing shift points when the temperature is extremely high.
MANUAL MODE
Driver oneself can select favorite gear and enjoy sports driving of manual transmission sense by shifting lever
from D position to manual mode position and + (up shift) / - (down shift). But lock-up control is operated auto-
matically. Shift control is operated again by shifting from manual gear position to D position. Following control
is operated when manual mode.
Automated Up Shift Control
In order to avoid the over speed of the engine, up shift operate automatically, if it becomes over a constant
vehicle speed.
Automated Down Shift Control
In order to avoid the stall of the engine, down shift operate automatically, if it becomes under a constant vehi-
cle speed.
Up Shift Permission Control
In order to avoid the stall of the engine, up shift is done only at over a constant vehicle speed.
Down Shift Permission Control
In order to avoid the over speed of the engine, down shift is done only at under a constant vehicle speed.
UP/DOWN SHIFT LEARNING CONTROL
This control learns the pressure to each clutch or brake in order to reduce shifting shock at each shifting (Up,
Down, Manual down, Coast down).
N-D SHIFT CONTROL
This control improves the N-D shift quality due to controlling line pressure solenoid valve according to forward
clutch piston stroke learned in N-D shift learning control and applying best hydraulic pressure to forward clutch
at N-D shift.
N-D SHIFT LEARNING CONTROL
This control learns the forward clutch hydraulic pressure due to monitoring a forward clutch engaging time and
a rotation change rate.
N-R SHIFT CONTROL
This control improves the N-R shift quality due to controlling shift pressure solenoid valve according to direct
clutch piston stroke learned in N-R shift learning control and applying best hydraulic pressure to direct clutch
at N-R shift.
N-R SHIFT LEARNING CONTROL
This control learns the direct clutch hydraulic pressure due to monitoring a direct clutch engaging time and a
rotation change rate.
TORQUE REDUCTION CONTROL
This control improves the shift quality due to sending torque reduction request signal from TCM to ECM and
cutting engine torque increase of shift at N-D shift, N-R shift and 1 ⇔ 2 ⇔ 3 ⇔ 4 ⇔ 5.
If accelerator pedal is depressed rapidly, this control establishes the upper limit value of engine torque and
avoids engine flare at 2 ⇔ 3, 3 ⇔ 4 and 4 Þ 2 of clutch to clutch shift.

Revision: November 2006 AT-424 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
Lock-Up Control ECS009CP

A
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the pressure control solenoid valve C,
which is controlled by a signal from TCM, and the torque converter clutch control valve engages or releases B
the torque converter clutch piston.
Lock-up Operation Condition Table
AT
Selector lever D position M5 position M4 position M3 position
Gear position 5 4 5 4 3
Lock-up × – × × × D
Slip lock-up × × – – –

TORQUE CONVERTER CLUTCH CONTROL VALVE CONTROL E

Lock-up Control System Diagram

SCIA2612E

Lock-up Released K
● In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
pressure control solenoid valve C and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled. L
Lock-up Applied
● In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the
pressure control solenoid valve C and lock-up apply pressure is generated. M
In this way, the torque converter clutch piston is pressed and coupled.

Revision: November 2006 AT-425 2006 Altima

 A/T CONTROL SYSTEM
[RE5F22A]
SMOOTH LOCK-UP CONTROL
When shifting from the lock-up released state to the lock-up applied state, the current output to the pressure
control solenoid valve C is controlled with the TCM. In this way, when shifting to the lock-up applied state, the
torque converter clutch is temporarily set to the half-clutched state to reduce the shock.
Half-Clutched State
● The current output from the TCM to the pressure control solenoid valve C is varied to steadily increase the
pressure control solenoid valve C pressure.
In this way, the lock-up apply pressure gradually rises and while the torque converter clutch piston is put
into half-clutched status, the torque converter clutch piston operating pressure is increased and the cou-
pling is completed smoothly.
Slip Lock-up Control
● In the slip region, the pressure control solenoid valve C current is controlled with the TCM to put it into the
half-clutched state. This absorbs the engine torque fluctuation and lock-up operates from low speed.
This raises the fuel efficiency for 4th and 5th gears at both low speed and when the accelerator has a low
degree of opening.

Revision: November 2006 AT-426 2006 Altima

 ON BOARD DIAGNOSTIC (OBD) SYSTEM
[RE5F22A]
ON BOARD DIAGNOSTIC (OBD) SYSTEM PFP:00028
A
Introduction ECS009CQ

The A/T system has two self-diagnostic systems.

The first is the emission-related on board diagnostic system (OBD-II) performed by the TCM in combination B
with the ECM. The malfunction is indicated by the MIL (malfunction indicator lamp) and is stored as a DTC in
the ECM memory but not the TCM memory.
The second is the TCM original self-diagnosis indicated by the A/T CHECK indicator lamp. The malfunction is
stored in the TCM memory. The detected items are overlapped with OBD-II self-diagnostic items. For detail, AT
refer to AT-463, "SELF-DIAG RESULT MODE" .
OBD-II Function for A/T System ECS009CR
D
The ECM provides emission-related on board diagnostic (OBD-II) functions for the A/T system. One function
is to receive a signal from the TCM used with OBD-related parts of the A/T system. The signal is sent to the
ECM when a malfunction occurs in the corresponding OBD-related part. The other function is to indicate a E
diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches
and solenoid valves are used as sensing elements.
The MIL automatically illuminates in One or Two Trip Detection Logic when a malfunction is sensed in relation
to A/T system parts. F

One or Two Trip Detection Logic of OBD-II ECS009CS

ONE TRIP DETECTION LOGIC

G
If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in
the ECM memory as a DTC. The TCM is not provided with such a memory function.
TWO TRIP DETECTION LOGIC H
When a malfunction is sensed during the first test drive, it is stored in the ECM memory as a 1st trip DTC
(diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. — 1st Trip
If the same malfunction as that experienced during the first test drive is sensed during the second test drive, I
the MIL will illuminate. — 2nd Trip
The “trip” in the “One or Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed
during vehicle operation.
J
OBD-II Diagnostic Trouble Code (DTC) ECS009CT

HOW TO READ DTC AND 1ST TRIP DTC

DTC and 1st trip DTC can be read by the following methods. K
( with CONSULT-II or GST) CONSULT-II or GST (Generic Scan Tool) Examples: P0705, P0710 etc.
These DTC are prescribed by SAE J2012.
(CONSULT-II also displays the malfunctioning component or system.)
L
● 1st trip DTC No. is the same as DTC No.
● Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction. How-
ever, in case of the Mode II and GST, they do not indicate whether the malfunction is still occurring
M
or occurred in the past and returned to normal.
CONSULT-II can identify them as shown below, therefore, CONSULT-II (if available) is recom-
mended.
A sample of CONSULT-II display for DTC and 1st trip DTC is shown
on the next page. DTC or 1st trip DTC of a malfunction is displayed
in SELF-DIAGNOSTIC RESULTS mode for “ENGINE” with CON-
SULT-II. Time data indicates how many times the vehicle was driven
after the last detection of a DTC.

BCIA0030E

Revision: November 2006 AT-427 2006 Altima

 ON BOARD DIAGNOSTIC (OBD) SYSTEM
[RE5F22A]
If the DTC is being detected currently, the time data will be “0”.

SAT015K

If a 1st trip DTC is stored in the ECM, the time data will be “1t”.

SAT016K

Freeze Frame Data and 1st Trip Freeze Frame Data

The ECM has a memory function, which stores the driving condition such as fuel system status, calculated
load value, engine coolant temperature, short term fuel trim, long term fuel trim, engine speed and vehicle
speed at the moment the ECM detects a malfunction.
Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data,
and the data, stored together with the DTC data, are called freeze frame data and displayed on CONSULT-II
or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For
detail, refer to EC-659, "FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA" .
Only one set of freeze frame data (either 1st trip freeze frame data or freeze frame data) can be stored in the
ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority
for 1st trip freeze frame data and it is updated each time a different 1st trip DTC is detected. However, once
freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no
longer stored. Remember, only one set of freeze frame data can be stored in the ECM. The ECM has the fol-
lowing priorities to update the data.
Priority Items
Misfire — DTC: P0300 - P0306
1
Freeze frame data Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175
2 Except the above items (Includes A/T related items)
3 1st trip freeze frame data

Both 1st trip freeze frame data and freeze frame data (along with the DTC) are cleared when the ECM mem-
ory is erased.
HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as
described following.
● If the battery cable is disconnected, the diagnostic trouble code will be lost within 24 hours.
● When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode
selector on the ECM.
The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC
related to OBD-II. For details, refer to EC-654, "EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS"
.
● Diagnostic trouble codes (DTC)
● 1st trip diagnostic trouble codes (1st trip DTC)

Revision: November 2006 AT-428 2006 Altima

 ON BOARD DIAGNOSTIC (OBD) SYSTEM
[RE5F22A]
● Freeze frame data
● 1st trip freeze frame data A
● System readiness test (SRT) codes
● Test values
B
HOW TO ERASE DTC (WITH CONSULT-II)
● If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least AT
10 seconds and then turn it “ON” (engine stopped) again.
2. Turn CONSULT-II “ON” and touch “TRANSMISSION”.
3. Touch “SELF-DIAG RESULTS”. D
4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.
5. Touch “ENGINE”.
E
6. Touch “SELF-DIAG RESULTS”.
7. Touch “ERASE”. (The DTC in the ECM will be erased.)
F

WCIA0554E

HOW TO ERASE DTC (WITH GST)

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2. Erase DTC with TCM. Refer to AT-470, "Erase self-diagnosis" . (The engine warm-up step can be skipped
when performing the diagnosis only to erase the DTC.)
3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-735, "Generic Scan Tool (GST)
Function" .

Revision: November 2006 AT-429 2006 Altima

 ON BOARD DIAGNOSTIC (OBD) SYSTEM
[RE5F22A]
HOW TO ERASE DTC (NO TOOLS)
The A/T CHECK indicator lamp is located on the instrument panel.
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least
10 seconds and then turn it “ON” (engine stopped) again.
2. Erase DTC with TCM. Refer to AT-470, "Erase self-diagnosis" . (The engine warm-up step can be skipped
when performing the diagnosis only to erase the DTC.)
3. Erase DTC with ECM. Refer to EC-666, "How to Erase DTC" .
Malfunction Indicator Lamp (MIL) ECS009CU

DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned “ON” with-
out the engine running. This is a bulb check.
● If the MIL does not light up, refer to DI-31, "WARNING LAMPS" ,
or see EC-669, "Malfunction Indicator Lamp (MIL)" .
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.

SEF217U

Revision: November 2006 AT-430 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
TROUBLE DIAGNOSIS PFP:00004
A
DTC Inspection Priority Chart ECS009CV

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart. B
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to
AT-471 . AT
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above D

Fail-Safe ECS009CW

The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is a malfunc- E
tion in a main electronic control input/output signal circuit.
In fail-safe mode, a driving condition is selected according to the malfunctioning location, and line pressure is
set at the maximum. For this reason, the customer will be subjected to uncomfortable “slipping” or “poor accel- F
eration” of the vehicle.
In that case, handle according to the “diagnostics flow” (Refer to AT-435 ).
FAIL-SAFE FUNCTION G
If any malfunction occurs in a sensor or solenoid, this function controls the A/T to make driving possible.
NOTE:
Line pressure is set at the maximum in fail-safe mode. Although gear position differs depending on H
the type of fail-safe modes, CONSULT-II indicates “5th”.
DTC Malfunction items Fail-safe*
P0500 Vehicle speed signal No learning control. I
P0613 TCM processor Fail-safe mode 4
P0705 PNP switch Fail-safe mode 4
J
Sets ATF temperature data at 111°C (232°F) after 15 minutes. Inhibits
P0710 ATF temperature sensor circuit
lock-up control.
Sets ATF temperature data at 111°C (232°F) after 15 minutes. Inhibits
P0711 ATF temperature sensor function K
lock-up control.
P0717 Turbine revolution sensor Fail-safe mode 1
Uses vehicle speed signal from combination meter as a substitute. Inhib- L
P0722 Revolution sensor
its learning control.
Engine speed signal input circuit perfor-
P0726 Fail-safe mode 1
mance
M
P0731 1st gear function No 1st gear, no control for N-D shift.
Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0732 2nd gear function
slipping.
Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0733 3rd gear function
slipping.
Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0734 4th gear function
slipping.
Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0735 5th gear function
slipping.
P0744 Lock-up function Fail-safe mode 1
Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0745 Pressure control solenoid valve A
slipping.

Revision: November 2006 AT-431 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
DTC Malfunction items Fail-safe*
Any one of fail-safe modes
● Fail-safe mode 1
P0750 Shift solenoid valve A
● Fail-safe mode 7. Also, ECM restricts input torque to prevent clutch
slipping.
Any one of fail-safe modes
P0755 Shift solenoid valve B ● Fail-safe mode 1
● Fail-safe mode 8
Any one of fail-safe modes
● Fail-safe mode 2
P0760 Shift solenoid valve C
● Fail-safe mode 5
● Fail-safe mode 9
Fail-safe mode 2. Also, ECM restricts engine torque to prevent clutch
P0762 Shift solenoid valve C stuck ON
slipping.
Any one of fail-safe modes
● Fail-safe mode 1
P0765 Shift solenoid valve D
● Fail-safe mode 10. Also, ECM restricts input torque to prevent clutch
slipping.
Any one of fail-safe modes
● Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
P0770 Shift solenoid valve E slipping.
● Fail-safe mode 6. Also, ECM restricts engine torque to prevent clutch
slipping.
P0775 Pressure control solenoid valve B Fail-safe mode 3
Fail-safe mode 1. Also, ECM restricts input torque to prevent clutch slip-
P0780 Shift function
ping.
P0795 Pressure control solenoid valve C Fail-safe mode 1
P0797 Pressure control solenoid valve C stuck ON Fail-safe mode 1
P0826 Manual mode switch No manual mode control.
P0882 TCM power input signal Fail-safe mode 1
● The accelerator opening angle is controlled by ECM according to a
P1726 Electric throttle control pre-determined accelerator angle to make driving possible.
● No lock-up, no learning control.
Any one of fail-safe modes
● Fail-safe mode 1
● Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch
U1000 CAN communication circuit
slipping.
● No learning control.
● No lock-up, no learning control, no special shift mode control.
*: For fail-safe modes 1 to 10, refer to AT-432, "Fail-safe mode list" .

Fail-safe mode list

Pressure control sole-
Gear Shift solenoid valve
Fail-safe mode Selector lever noid valve
position*1
A B C D E A B C
D position
4th OFF OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift)
Fail-safe mode 1
Manual mode: - (down shift) 2nd OFF OFF ON OFF OFF OFF OFF OFF
R position Reverse OFF OFF OFF OFF ON OFF OFF OFF

Revision: November 2006 AT-432 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Pressure control sole-
Gear Shift solenoid valve
Fail-safe mode Selector lever noid valve A
position*1
A B C D E A B C
D position
Fail-safe mode 2
3rd OFF OFF ON ON OFF OFF OFF OFF B
Manual mode: + (up shift)
(CONSULT-II dis-
plays “8”) Manual mode: - (down shift) 2nd OFF OFF ON OFF OFF OFF OFF OFF
R position Reverse OFF OFF ON OFF ON OFF OFF OFF AT
D position
4th OFF OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift)
Fail-safe mode 3 D
Manual mode: - (down shift) 2nd OFF OFF ON OFF ON OFF OFF OFF
R position Reverse OFF OFF OFF OFF ON OFF OFF OFF
D position E
4th OFF OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift)
Fail-safe mode 4
Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF
R position Reverse OFF OFF OFF OFF OFF OFF OFF OFF F
D position
4th OFF OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift)
Fail-safe mode 5 G
Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF
R position Reverse OFF OFF OFF OFF ON OFF OFF OFF
D position H
4th OFF OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift)
Fail-safe mode 6
Manual mode: - (down shift) 2nd OFF OFF ON OFF OFF OFF OFF OFF
I
R position Reverse OFF OFF ON OFF OFF OFF OFF OFF
D position
4th ON OFF OFF OFF OFF OFF OFF OFF
Manual mode: + (up shift) J
Fail-safe mode 7
Manual mode: - (down shift) 2nd ON OFF ON OFF OFF OFF OFF OFF
R position *2 ON OFF ON ON OFF OFF OFF OFF
Reverse
K
D position
5th OFF ON OFF OFF OFF OFF OFF OFF
Fail-safe mode 8 Manual mode: + (up shift)
(CONSULT-II dis-
plays “1”) Manual mode: - (down shift) (2nd)*3 OFF ON ON OFF OFF OFF OFF OFF L
R position Reverse OFF ON OFF OFF ON OFF OFF OFF
D position
4th OFF OFF OFF ON OFF OFF OFF OFF M
Fail-safe mode 9 Manual mode: + (up shift)
(CONSULT-II dis-
plays “8”) Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF
R position Reverse OFF OFF OFF OFF ON OFF OFF OFF
D position
4th OFF OFF OFF ON OFF OFF OFF OFF
Fail-safe mode 10 Manual mode: + (up shift)
(CONSULT-II dis-
plays “6”) Manual mode: - (down shift) 3rd OFF OFF ON ON OFF OFF OFF OFF
R position Reverse*2 OFF OFF ON ON OFF OFF OFF OFF
*1: CONSULT-II indicates “5th”.
*2: Reverse gear ratio difference (Gear ratio: 3.342)
*3: 3rd gear ratio difference (Gear ratio: 2.301)

Revision: November 2006 AT-433 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
How To Perform Trouble Diagnosis For Quick and Accurate Repair ECS009CX

INTRODUCTION
The TCM receives a signal from the vehicle speed signal, throttle position sensor (accelerator pedal position
sensor) or PNP switch and provides shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.

SAT631IB

It is much more difficult to diagnose an error that occurs intermit-

tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-II (or GST) or a circuit tester connected should be
performed. Follow the AT-435, "WORK FLOW" .

SAT632I

Before undertaking actual checks, take a few minutes to talk with a

customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” as shown on
the example (Refer to AT-436 ) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SEF234G

Revision: November 2006 AT-434 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
WORK FLOW
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. A
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Make good use of the two sheets provided, “Information From Customer” (Refer to AT-436 ) and “Diagnostic B
Worksheet” (Refer to AT-436 ), to perform the best troubleshooting possible.
Work Flow Chart
AT

SCIA0501E

*1. AT-436 *2. AT-436 *3. AT-431

*4. AT-441 *5. AT-441, AT-443 *6. AT-444
*7. AT-462 *8. AT-427 *9. AT-430
*10. AT-471 *11. AT-597 *12. AT-598
*13. AT-617 *14. AT-451 *15. AT-428
*16. AT-471 *17. AT-597 *18. EC-654

Revision: November 2006 AT-435 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
DIAGNOSTIC WORKSHEET
Information From Customer
KEY POINTS
● WHAT..... Vehicle & A/T model
● WHEN..... Date, Frequencies
● WHERE..... Road conditions
● HOW..... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN
Trans. Model Engine Mileage
Incident Date Manuf. Date In Service Date
Frequency ❏ Continuous ❏ Intermittent (times a day)
Symptoms ❏ Vehicle does not move. (❏ Any position ❏ Particular position)
❏ No up-shift (❏ 1st → 2nd ❏ 2nd → 3rd ❏ 3rd → 4th ❏ 4th → 5th)
❏ No down-shift (❏ 5th → 4th ❏ 4th → 3rd ❏ 3rd → 2nd ❏ 2nd → 1st)
❏ Lock-up malfunction
❏ Shift point too high or too low.
❏ Shift shock or slip (❏ N → D ❏ Lock-up ❏ Any drive position)
❏ Noise or vibration
❏ No kick down
❏ No pattern select
❏ Others
( )
Malfunction indicator lamp (MIL) ❏ Continuously lit ❏ Not lit
A/T Check indicator lamp ❏ Continuously lit ❏ Not lit

Diagnostic Worksheet Chart

1 ❏ Read the item on cautions concerning fail-safe and understand the customer's complaint. AT-431
❏ A/T fluid inspection

2 ❏ Leak (Repair leak location.) AT-441

❏ State
❏ Amount
❏ Stall test, time lag test and line pressure test
❏ Stall test
❏ Engine ❏ B5 brake
❏ Torque converter one-way clutch ❏ One-way clutch No. 2
❏ Line pressure is low ❏ Oil pump
❏ Forward clutch ❏ Oil strainer
❏ Direct clutch ❏ Oil leak for each range circuit AT-441, AT-
3 ❏ 1st and reverse brake 443
❏ Time lag test
❏ Line pressure is low ❏ Oil pump
❏ Forward clutch ❏ Oil strainer
❏ Direct clutch ❏ Oil leak for “D” position circuit
❏ 1st and reverse brake ❏ Oil leak for “R” position circuit
❏ One-way clutch No. 2
❏ Line pressure inspection - Suspected part:

Revision: November 2006 AT-436 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
❏ Perform all road tests and enter checks in required inspection items. AT-444
A
Check before engine is started
❏ The A/T CHECK Indicator Lamp does come on. AT-598 . AT-445
❏ Perform self-diagnostics. Enter checks for detected items.
B
❏ Vehicle speed sensor·MTR. AT-474 .
❏ TCM processor. AT-476 .
❏ PNP switch. AT-478 .
❏ A/T fluid temperature sensor circuit. AT-483 . AT
❏ A/T fluid temperature sensor performance. AT-488 .
❏ Turbine revolution sensor circuit. AT-493 .
❏ Vehicle speed sensor·A/T (revolution sensor) circuit. AT-497 .
❏ Engine speed input circuit performance. AT-501 . D
❏ 1st gear function. AT-503 .
❏ 2nd gear function. AT-506 .
❏ 3rd gear function. AT-512 .
❏ 4th gear function. AT-518 . E
❏ 5th gear function. AT-523 .
4-1. ❏ Lock-up function. AT-529 .
❏ Shift function. AT-572 .
F
❏ Pressure control solenoid valve A. AT-532 .
❏ Pressure control solenoid valve B. AT-567 .
❏ Pressure control solenoid valve C. AT-576 .
❏ Shift solenoid valve A. AT-537 . G
❏ Shift solenoid valve B. AT-542 .
❏ Shift solenoid valve C. AT-547 .
❏ Shift solenoid valve D. AT-557 .
4 ❏ Shift solenoid valve E. AT-562 . H
❏ Pressure control solenoid valve C stuck ON. AT-581 .
❏ Shift solenoid valve C stuck ON. AT-552 .
❏ Manual mode switch circuit. AT-586 .
❏ TCM power input signal. AT-592 . I
❏ Electric throttle control system. AT-597 .
❏ CAN communication. AT-471 .
❏ Battery
❏ Other
J

Idle inspection
❏ Engine Cannot Be Started in “P” and “N” Position. AT-600 .
K
❏ In “ P” Position, Vehicle Moves When Pushed. AT-600 .
4-2. ❏ In “N” Position Vehicle Moves. AT-601 . AT-445
❏ Large Shock “N” to “D” Position. AT-602 .
❏ Vehicle Does Not Creep Backward In “R” Position. AT-603 . L
❏ Vehicle does Not Creep Forward In “D” Position. AT-604 .
Driving tests
Part 1 M
❏ Vehicle Cannot Be Started From D1. AT-605 .
❏ A/T Does Not Shift: D1 → D2. AT-605 .
4-3.
❏ A/T Does Not Shift: D2 → D3. AT-606 . AT-447
❏ A/T Does Not Shift: D3 → D4. AT-607 .
❏ A/T Does Not Shift: D4 → D5. AT-608 .
❏ A/T Does Not Perform Lock-up. AT-609
❏ A/T Does Not Hold Lock-up Condition. AT-610 .
❏ Lock-up Is Not Released. AT-611 .

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 TROUBLE DIAGNOSIS
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Part 2
❏ Vehicle Cannot Be Started From D1. AT-605 .
❏ A/T Does Not Shift: D1 → D2. AT-605 . AT-448
❏ A/T Does Not Shift: D2 → D3. AT-606 .
❏ A/T Does Not Shift: D3 → D4. AT-607 .
Part 3
❏ Cannot Be Changed To Manual Mode. AT-612 .
❏ A/T Does Not Shift: 5th gear → 4th gear. AT-613 .
❏ A/T Does Not Shift: 4th gear → 3rd gear. AT-614 . AT-449
❏ A/T Does Not Shift: 3rd gear → 2nd gear. AT-614 .
❏ A/T Does Not Shift: 2nd gear → 1st gear. AT-615 .
❏ Vehicle Does Not Decelerate By Engine Brake. AT-616 .
❏ Perform self-diagnostics Enter checks for detected items.
❏ Vehicle speed sensor·MTR. AT-474 .
❏ TCM processor. AT-476 .
❏ PNP switch. AT-478 .
❏ A/T fluid temperature sensor circuit. AT-483 .
❏ A/T fluid temperature sensor performance. AT-488 .
❏ Turbine revolution sensor circuit. AT-493 .
❏ Vehicle speed sensor·A/T (revolution sensor) circuit. AT-497 .
❏ Engine speed input circuit performance. AT-501 .
4 4-3
❏ 1st gear function. AT-503 .
❏ 2nd gear function. AT-506 .
❏ 3rd gear function. AT-512 .
❏ 4th gear function. AT-518 .
❏ 5th gear function. AT-523 .
❏ Lock-up function. AT-529 .
❏ Shift function. AT-572 .
❏ Pressure control solenoid valve A. AT-532 .
❏ Pressure control solenoid valve B. AT-567 .
❏ Pressure control solenoid valve C. AT-576 .
❏ Shift solenoid valve A. AT-537 .
❏ Shift solenoid valve B. AT-542 .
❏ Shift solenoid valve C. AT-547 .
❏ Shift solenoid valve D. AT-557 .
❏ Shift solenoid valve E. AT-562 .
❏ Pressure control solenoid valve C stuck ON. AT-581 .
❏ Shift solenoid valve C stuck ON. AT-552 .
❏ Manual mode switch circuit. AT-586 .
❏ TCM power input signal. AT-592 .
❏ Electric throttle control system. AT-597 .
❏ CAN communication. AT-471 .
❏ Battery
❏ Other
❏ Inspect each system for items found to be NG in the self-diagnostics and repair or replace the malfunction
5
parts.
6 ❏ Perform all road tests and enter the checks again for the required items. AT-444
❏ For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunction parts.
7 See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection proce- AT-451
dures.)
8 ❏ Erase the results of the self-diagnostics from the TCM. AT-470

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 TROUBLE DIAGNOSIS
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A/T Electrical Parts Location ECS009CY

AT

WCIA0350E

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 TROUBLE DIAGNOSIS
[RE5F22A]
Circuit Diagram ECS009CZ

BCWA0475E

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 TROUBLE DIAGNOSIS
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Inspections Before Trouble Diagnosis ECS009D0

A/T FLUID CHECK A

Fluid leakage and fluid level check
● Inspect for fluid leakage and check the fluid level. Refer to AT-398, "Checking A/T Fluid" .
B
Fluid condition check
Inspect the fluid condition.
Fluid status Conceivable Cause Required Operation AT
Replace the A/T fluid and check the
Varnished (viscous Clutch, brake A/T main unit and the vehicle for
varnish state) scorched malfunctions (wire harnesses, D
cooler pipes, etc.)
Milky white or Replace the A/T fluid and check for
Water in the fluid
cloudy places where water is getting in. E
Large amount of Unusual wear of
Replace the A/T fluid and check for
metal powder mixed sliding parts within
improper operation of the A/T.
in A/T SAT638A
F
STALL TEST
Stall test procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary. G
2. Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80°C (122 to 176°F). Inspect the
amount of A/T fluid. Replenish if necessary. H
3. Switch of A/C and light etc. are off.

J
SAT647B

K
4. Securely engage the parking brake so that the tires do not turn.

SAT513G

5. Engine start, apply foot brake, and place selector lever in “D”
position.
6. While holding down the foot brake, gradually press down the
accelerator pedal.
7. Quickly read off the stall speed, then quickly remove your foot
from the accelerator pedal.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.
8. Move the selector lever to the “N” position. SAT514G
9. Cool down the A/T fluid.

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 TROUBLE DIAGNOSIS
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CAUTION:
Run the engine at idle for at least one minute.
10. Repeat step 5 through 9 with selector lever in “manual mode” and “R” positions.
Stall speed: 2,430 - 2,730 rpm
Judgement stall test
Selector lever position
Possible cause
D, M R
● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
H O
● Forward clutch (slipping)
● One-way clutch No. 2
● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
O H
● Direct clutch (slipping)
Stall rotation ● 1st and reverse brake (slipping)
L L ● Engine or torque converter one-way clutch
● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
valve malfunction)
● B5 brake (slipping)
H H
● Oil pump
● Oil strainer (clogging)
● Oil leak for each range circuit
O: Stall speed within standard value position
H: Stall speed higher than standard value
L: Stall speed lower than standard value

TIME LAG TEST

Time lag test procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80°C (122 to 176°F). Check the
amount of A/T fluid. Replenish if necessary.
3. Switch of A/C and light etc. are off.

SAT647B

4. Securely engage the parking brake so that the tires do not turn.
5. Engine start, apply foot brake.
6. Measure time lag by using stopwatch from moment when shift
lever is shifted in “N” to “D” position and “N” to “R” position until
moment slightly shock can be felt.
CAUTION:
● Make sure to take 3 measurement and take the average
value.
● Make sure to keep interval for more than one minute
between time lag tests. SAT513G
(That purpose is to remove clutch/brake pressure was
left unfinished.)

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 TROUBLE DIAGNOSIS
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Time lag:
A
“N” to “D” position: Less than 0.7 sec.
“N” to “R” position: Less than 1.2 sec.
Judgement time lag test B
Result of time lag test Possible cause
● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator
AT
valve malfunction)
Longer than standards “N” to “D” position ● Forward clutch (slipping)
● One-way clutch No. 2
D
● Oil leak for “D” range circuit
● Line pressure is low
● Direct clutch (slipping) E
● 1st and reverse brake (slipping)
Longer than standards “N” to “R” position
● Oil leak for “R” range circuit
● Oil pump F
● Oil strainer (clogging)

LINE PRESSURE TEST

Line pressure test port G
Location of line pressure test port is show in the figure.
H

SCIA2669E

Line pressure test procedure K

1. Inspect the amount of engine oil and replenish if necessary.
2. Drive the car for about 10 minutes to warm it up so that the A/T fluid reaches in range of 50 to 80°C (122
to 176°F), then inspect the amount of A/T fluid and replenish if necessary. L
NOTE:
The automatic fluid temperature rises in range of 50 to 80°C (122 to 176°F) during 10 minutes of
driving. M
3. Switch of A/C and light etc. are off.
4. After warming up A/T, remove the oil pressure detection plug and install the oil pressure gauge [SST:
(J34301-C)] and adapter [SST: (J45542)].
CAUTION:
Make sure to check no oil leak after installing oil pressure gage.
5. Securely engage the parking brake so that the tires do not turn.

SAT513G

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 TROUBLE DIAGNOSIS
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6. Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
● Keep the brake pedal pressed all the way down during
measurement.
● When measuring the line pressure at the stall speed,
refer to AT-441, "STALL TEST" .
7. After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque.
:5.9 - 8.8 N·m (0.61 - 0.89 kg-m, 53 - 77 in-lb) SAT493G

CAUTION:
Do not reuse O-ring.
Line pressure
Line pressure kPa (kg/cm2 , psi)
Engine speed
D, M positions R position
At idle speed 333 - 392 (3.4 - 4.0, 48 - 57) 500 - 608 (5.1 - 6.2, 73 - 88)
At stall speed 1,285 - 1,393 (13.1 - 14.2, 186 - 202) 1,706 - 1,981 (17.4 - 20.2, 247 - 287)

Judgement of line pressure test

Judgement Possible cause
● Pressure control solenoid valve A malfunction
Higher than standards both “D”, “M” and “R” positions
● Primary regulator valve malfunction
● Pressure control solenoid valve A malfunction
● Primary regulator valve malfunction
Lower than standards both “D”, “M” and “R” positions ● Oil pump malfunction
● B5 bake malfunction
● Oil leak for each range circuit malfunction
● Oil leak for “D” range circuit malfunction
Lower than standards only “D” position
● Forward clutch malfunction
● Oil leak for “R” range circuit malfunction
Lower than standards only “R” position ● Direct clutch malfunction
● 1st and reverse brake malfunction

ROAD TEST
Description
● The road test inspects overall performance of the A/T and analyzes possible malfunction causes.
● The road test is perform in the following three stages.
1. Check before engine is started. Refer to AT-445 .
2. Check at idle. Refer to AT-445 .
3. Cruise test
● Inspect all the items from Part 1 to Part 3. Refer to AT-447 ,
AT-448 , AT-449 .

SAT786A

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 TROUBLE DIAGNOSIS
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● Before beginning the road test, check the test procedure and
inspection items. A
● Test all inspection items until the symptom is uncovered. Diag-
nose NG items when all road tests are complete.
B

AT

SAT496G

D
Check Before Engine is Started ECS009D1

1. CHECK A/T CHECK INDICATOR LAMP

E
1. Park vehicle on level surface.
2. Move selector lever to “P” position.
3. Turn ignition switch “OFF” and wait at least 10 seconds. F
4. Turn ignition switch “ON”. (Do not start engine.)
Does A/T CHECK indicator lamp light up for about 2 seconds?
Yes >> 1. Turn ignition switch “OFF”. G
2. Perform the self-diagnostics and record all NG items on the diagnostics worksheet. Refer to AT-
463 , AT-468 .
3. Go to AT-445, "Check at Idle" . H
No >> Stop the road test and go to AT-598, "A/T CHECK Indicator Lamp does not come on" .
Check at Idle ECS009D2
I
1. CHECK STARTING THE ENGINE
1. Park vehicle on level surface.
J
2. Move selector lever to “P” position.
3. Turn ignition switch “OFF”.
4. Turn ignition switch “START”. K
Does the engine start?
Yes >> GO TO 2.
No >> Stop the road test and go to AT-600, "Engine Cannot Be Started In “P” or “N” Position" . L

2. CHECK STARTING THE ENGINE

1. Turn ignition switch “ACC”. M
2. Move selector lever in “D” or “R” position.
3. Turn ignition switch “START”.
Does the engine start in either position?
Yes >> Stop the road test and go to AT-600, "Engine Cannot Be Started In “P” or “N” Position" .
No >> GO TO 3.

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 TROUBLE DIAGNOSIS
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3. CHECK “P” POSITION FUNCTIONS
1. Move selector lever to “P” position.
2. Turn ignition switch “OFF”.
3. Disengage the parking brake.
4. Push the vehicle forward or backward.
5. Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
Yes >> Enter a check mark at “Vehicle moves when pushed in “P” position” on the diagnostics worksheet,
then continue the road test.
No >> GO TO 4.

4. CHECK “N” POSITION FUNCTIONS

1. Start the engine.
2. Move selector lever to “N” position.
3. Disengage the parking brake.
Does vehicle move forward or backward?
Yes >> Enter a check mark at “Vehicle moves in “N” position” on the diagnostics worksheet, then continue
the road test.
No >> GO TO 5.

5. CHECK SHIFT SHOCK

1. Engage the brake.
2. Move selector lever to “D” position.
When the transaxle is shifted from “N” to “D”, is there an excessive shock?
Yes >> Enter a check mark at “Large shock when shifted from N to D” on the diagnostics worksheet, then
continue the road test.
No >> GO TO 6.

6. CHECK “R” POSITION FUNCTIONS

1. Engage the brake.
2. Move selector lever to “R” position.
3. Disengage the brake for 4 to 5 seconds.
Does the vehicle creep backward?
Yes >> GO TO 7.
No >> Enter a check mark at “Vehicle does not creep backward in R position” on the diagnostics work-
sheet, then continue the road test.

7. CHECK “D” POSITION FUNCTIONS

Inspect whether the vehicle moves forward when the transaxle is put into the “D” position.
Does the vehicle move forward in the “D” positions?
Yes >> Go to AT-447, "Cruise Test - Part 1" , AT-448, "Cruise Test - Part 2" , and AT-449, "Cruise Test -
Part 3" .
No >> Enter a check mark at “Vehicle does not move forward in D positions” on the diagnostics work-
sheet, then continue the road test.

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 TROUBLE DIAGNOSIS
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Cruise Test - Part 1 ECS009D3

1. CHECK STARTING OUT FROM D1 A

1. Drive the vehicle for about 10 minutes to warm up the engine oil and A/T fluid.
Appropriate temperature for the A/T fluid: 50 - 80°C (122 - 176°F) B
2. Park the vehicle on a level surface.
3. Move selector lever to “P” position.
4. Start the engine. AT
5. Move selector lever to “D” position.
6. Press the accelerator pedal about half way down to accelerate the vehicle.
D
With CONSULT-II
Read off the gear positions.
Starts from D1? E
Yes >> GO TO 2.
No >> Enter a check mark at “Vehicle cannot be started from D1” on the diagnostics worksheet, then
continue the road test.
F
2. CHECK SHIFT-UP D1 → D2
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D1 → D2) at the appropri- G
ate speed.
● Refer to AT-450 .
With CONSULT-II H
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift-up D1 → D2 at the correct speed?
Yes >> GO TO 3. I
No >> Enter a check mark at “A/T does not shift D1 → D2” on the diagnostics worksheet, then continue
the road test.
J
3. CHECK SHIFT-UP D2 → D3
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D2 → D3) at the appropri-
ate speed. K
● Refer to AT-450 .
With CONSULT-II L
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift-up D2 → D3 at the correct speed?
Yes >> GO TO 4. M
No >> Enter a check mark at “A/T does not shift D2 → D3” on the diagnostics worksheet, then continue
the road test.

4. CHECK SHIFT-UP D3 → D4
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D3 → D4) at the appropri-
ate speed.
● Refer to AT-450 .
With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift-up D3 → D4 at the correct speed?
Yes >> GO TO 5.
No >> Enter a check mark at “A/T does not shift D3 → D4” on the diagnostics worksheet, then continue
the road test.

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 TROUBLE DIAGNOSIS
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5. CHECK SHIFT-UP D4 → D5
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D4 → D5) at the appropri-
ate speed.
● Refer to AT-450 .
With CONSULT-II
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift-up D4 → D5 at the correct speed?
Yes >> GO TO 6.
No >> Enter a check mark at “A/T does not shift D4 → D5” on the diagnostics worksheet, then continue
the road test.

6. CHECK LOCK-UP
When releasing accelerator pedal from D5, check lock-up from D5 to L/U.
● Refer to AT-450 .
With CONSULT-II
Read the lock-up status.
Does it lock-up?
Yes >> GO TO 7.
No >> Enter a check mark at “A/T does not perform lock-up” on the diagnostics worksheet, then continue
the road test.

7. CHECK LOCK-UP HOLD

Does it maintain lock-up status?

Yes >> GO TO 8.
No >> Enter a check mark at “A/T hold does not lock-up condition” on the diagnostics worksheet, then
continue the road test.

8. CHECK LOCK-UP RELEASE

Check lock-up cancellation by depressing brake pedal lightly to decelerate.
With CONSULT-II
Read the lock-up status.
Does lock-up cancel?
Yes >> 1. Stop the vehicle.
2. Go to Cruise test - Part 2 (Refer to AT-448 ).
No >> Enter a check mark at “Lock-up is not released” on the diagnostics worksheet, then continue the
road test. Go to Cruise test - Part 2 (Refer to AT-448 ).
Cruise Test - Part 2 ECS009D4

1. CHECK STARTING FROM D1

1. Move selector lever the “D” position.
2. Accelerate at half throttle.
With CONSULT-II
Read the gear position.
Does it start from D1?
Yes >> GO TO 2.
No >> Enter a check mark at “Vehicle cannot be started from D1” on the diagnostics worksheet, then
continue the road test.

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 TROUBLE DIAGNOSIS
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2. CHECK SHIFT-UP D1 → D2 A
Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D1 → D2) at
the correct speed.
● Refer to AT-450 . B
With CONSULT-II
Read the gear position, accelerator angle and vehicle speed.
AT
Does the A/T shift-up D1 → D2 at the correct speed?
Yes >> GO TO 3.
No >> Enter a check mark at “Vehicle does not shift D1 → D2” on the diagnostics worksheet, then con-
tinue the road test. D

3. CHECK SHIFT-UP D2 → D3
E
Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D2 → D3) at
the correct speed.
● Refer to AT-450 .
F
With CONSULT-II
Read the gear position, accelerator angle and vehicle speed.
Does the A/T shift-up D2 → D3 at the correct speed? G
Yes >> GO TO 4.
No >> Enter a check mark at “Vehicle does not shift D2 → D3” on the diagnostics worksheet, then con-
tinue the road test. H

4. CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE

When the transaxle changes speed D2 → D3, return the accelerator pedal. I
Does the A/T shift-up D3 → D4 and apply the engine brake?
Yes >> 1. Stop the vehicle.
J
2. Go to Cruise test - Part 3 (Refer to AT-449 ).
No >> Enter a check mark at “Vehicle does not shift D3 → D4” on the diagnostics worksheet, then con-
tinue the road test.
K
Cruise Test - Part 3 ECS009D5

1. MANUAL MODE FUNCTION

L
Move to manual mode from D position.
Does it switch to manual mode?
Yes >> GO TO 2. M
No >> Continue road test and add check mark to “Cannot be changed to manual mode” on diagnostics
worksheet.

2. CHECK SHIFT-DOWN
During manual mode driving, is downshift from M5 → M4 → M3 → M2 → M1 performed?
With CONSULT-II
Read the gear position.
Is downshifting correctly performed?
Yes >> GO TO 3.
No >> Enter a check mark at “Vehicle does not shift” at the corresponding position (5th → 4th, 4th →
3rd, 3rd → 2nd, 2nd → 1st) on the diagnostics worksheet, then continue the road test.

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 TROUBLE DIAGNOSIS
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3. CHECK ENGINE BRAKE

Does engine braking effectively reduce speed in M1 position?

Yes >> 1. Stop the vehicle.
2. Perform the self-diagnostics. Refer to AT-463, "SELF-DIAG RESULT MODE" , AT-468, "Diag-
nostic Procedure Without CONSULT-II" .
No >> Enter a check mark at “Vehicle does not decelerate by engine brake” on the diagnostics work-
sheet, then continue trouble diagnosis.
Shift Schedule ECS009D6

VEHICLE SPEED WHEN SHIFTING GEARS - 9J500 MODELS

Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
D1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1
63 100 156 230 219 150 88 43
100 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 219 150 88 43
90 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 219 150 88 43
80 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 208 149 86 43
70 %
(39) (62) (97) (143) (129) (93) (53) (27)
63 100 156 230 201 143 80 43
60 %
(39) (62) (97) (143 (125) (89) (50) (27)
63 95 145 214 187 130 73 43
50 %
(39) (59) (90) (133) (116) (81) (45) (27)
53 87 124 182 156 97 57 34
40 %
(33) (54) (77) (113) (97) (60) (35) (21)
39 68 95 134 112 62 37 20
30 %
(24) (42) (59) (83) (70) (39) (23) (12)
29 49 65 92 63 42 23 8
20 %
(18) (30) (40) (57) (39) (26) (14) (5)
20 31 41 58 47 34 23 8
10 %
(12) (19) (25) (36) (29) (21) (14) (5)

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 TROUBLE DIAGNOSIS
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VEHICLE SPEED WHEN SHIFTING GEARS - 8Y100 MODELS
Vehicle speed km/h (MPH) (Approx.)
A
Accelerator angle
D1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1
58 93 144 213 203 139 81 40
100 % B
(36) (58) (89) (132) (126) (86) (50) (25)
58 93 144 213 203 139 81 40
90 %
(36) (58) (89) (132) (126) (86) (50) (25)
AT
58 93 144 213 203 139 81 40
80 %
(36) (58) (89) (132) (126) (86) (50) (25)
58 93 144 213 193 138 80 40
70 %
(36) (58) (89) (132) (120) (86) (50) (25)
D
58 93 144 213 186 133 75 40
60 %
(36) (58) (89) (132) (116) (83) (47) (25)
E
58 88 135 199 173 121 68 40
50 %
(36) (55) (84) (124) (108) (75) (42) (25)
49 80 115 169 145 90 53 31
40 % F
(30) (50) (71) (105) (90) (56) (33) (19)
36 63 88 124 103 58 34 19
30 %
(22) (39) (55) (77) (64) (36) (21) (12)
27 46 61 86 59 39 22 8
G
20 %
(17) (29) (38) (53) (37) (24) (14) (5)
19 29 38 53 44 32 22 8
10 % H
(12) (18) (24) (33) (27) (20) (14) (5)

VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP - 9J500 MOD-
ELS I
Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
Lock-up “ON” Lock-up “OFF”
J
50 % 230 (143) 207 (129)
15% 115 (71) 74 (46)
0-8% 70 (43) 67 (42) K
● Lock-up vehicle speed indicates the speed in D position.
● Perform lock-up inspection after warming up engine.
● Lock-up vehicle speed may vary depending on the driving conditions and circumstances. L
VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP
8Y100 MODELS
M
Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
Lock-up “ON” Lock-up “OFF”
50 % 213 (132) 192 (119)
15% 106 (66) 69 (43)
0-8% 65 (40) 62 (39)
● Lock-up vehicle speed indicates the speed in D position.
● Perform lock-up inspection after warming up engine.
● Lock-up vehicle speed may vary depending on the driving conditions and circumstances.

Symptom Chart ECS009D7

Numbers are arranged in order of inspection.

Perform inspections starting with number one and work up.
CAUTION:
Do not remove or disassemble any RE5F22A model transaxle parts unless specified to do so in AT
section.

Revision: November 2006 AT-451 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page
1. Fluid level and state AT-441
AT-628, AT-
2. Control cable and PNP switch adjustment
626
ON vehicle
3. TCM AT-459
With selector lever in D position, driving is 4. Pressure control solenoid valve A AT-532
not possible.
5. Control valve assembly AT-629
6. Torque converter AT-631
7. Forward and direct clutch assembly AT-643
OFF vehicle
8. B5 brake AT-670
9. One-way clutch No.2 AT-643
1. Fluid level and state AT-441
AT-628, AT-
2. Control cable and PNP switch adjustment
626
3. TCM AT-459
ON vehicle
4. Shift solenoid valve A AT-537
5. Shift solenoid valve B AT-542
With selector lever in R position, driving is
not possible. 6. Pressure control solenoid valve A AT-532
7. Control valve assembly AT-629
8. Torque converter AT-643
9. Forward and direct clutch assembly AT-643
OFF vehicle
10. 1st and reverse brake AT-643
11. B5 brake AT-670
1. Fluid level and state AT-441
AT-628, AT-
2. Control cable and PNP switch adjustment
626
3. TCM AT-459
4. Shift solenoid valve A AT-537
No shock at all or the clutch slips when ON vehicle
5. Shift solenoid valve B AT-542
vehicle changes speed.
6. Shift solenoid valve E AT-562
7. Pressure control solenoid valve A AT-532
8. Pressure control solenoid valve C AT-576
9. Control valve assembly AT-629
OFF vehicle 10. Accumulator AT-643
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
ON vehicle 3. Turbine revolution sensor AT-493
Time lag is large. (“N” →“ D” position) 4. TCM AT-459
5. Control valve assembly AT-629
6. Accumulator AT-643
OFF vehicle
7. Forward and direct clutch assembly AT-643

Revision: November 2006 AT-452 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page A
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
B
3. Turbine revolution sensor AT-493
ON vehicle
4. TCM AT-459
Time lag is large. (“N” →“ R” position)
5. Shift solenoid valve E AT-562 AT
6. Control valve assembly AT-629
7. Forward and direct clutch assembly AT-643
OFF vehicle D
8. 1st and reverse brake AT-643
1. Ignition switch and starter PG-4, SC-7
Engine does not start in “N”, “P” position. ON vehicle 2. Control cable adjustment AT-628 E
3. PNP switch AT-478
1. Ignition switch and starter PG-4, SC-7
Engine starts in positions other than “N” or F
ON vehicle 2. Control cable adjustment AT-628
“P”.
3. PNP switch AT-478
1. Fluid level and state AT-441
G
2. TCM AT-459
Engine stalls when selector lever shifted “N”
ON vehicle 3. Shift solenoid valve D AT-557
→ “D”, “R”.
4. Pressure control solenoid valve C AT-576 H
5. Control valve assembly AT-629
1. Fluid level and state AT-441
I
2. TCM AT-459
3. Shift solenoid valve D AT-557
Engine stall when vehicle slow down. ON vehicle
4. Shift solenoid valve E AT-562 J
5. Pressure control solenoid valve C AT-576
6. Control valve assembly AT-629
K
1. Fluid level and state AT-441
AT-628, AT-
2. Control cable and PNP switch adjustment
Acceleration is extremely poor. ON vehicle 626
L
3. Engine speed signal AT-501
4. Electric throttle control signal AT-597
1. Fluid level and state AT-441 M
2. TCM AT-459
3. Electric throttle control signal AT-597
4. Shift solenoid valve A AT-537
ON vehicle
5. Shift solenoid valve B AT-542
6. Shift solenoid valve C AT-547
Gear does not change from D1 → D2 or
from M1 → M2 . 7. Shift solenoid valve D AT-557
8. Control valve assembly AT-629
AT-662, AT-
9. 2nd coast brake
668

OFF vehicle 10. 2nd brake AT-662

11. One-way clutch No.1 AT-668
12. One-way clutch No.2 AT-643

Revision: November 2006 AT-453 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page
1. Fluid level and state AT-441
2. TCM AT-459
3. Electric throttle control signal AT-597
4. Shift solenoid valve B AT-542
ON vehicle
Gear does not change from D2 → D3 or 5. Shift solenoid valve C AT-547
from M2 → M3 . 6. Shift solenoid valve D AT-557
7. Pressure control solenoid valve A AT-532
8. Control valve assembly AT-629
9. U/D brake AT-643
OFF vehicle
10. B5 brake AT-670
1. Fluid level and state AT-441
2. TCM AT-459
3. Electric throttle control signal AT-597
ON vehicle 4. Shift solenoid valve B AT-542
Gear does not change from D3 → D4 or
5. Shift solenoid valve C AT-547
from M3 → M4 .
6. Shift solenoid valve D AT-557
7. Control valve assembly AT-629
8. U/D clutch AT-643
OFF vehicle
9. U/D brake AT-643
1. Fluid level and state AT-441
2. TCM AT-459
3. Electric throttle control signal AT-597
ON vehicle
4. Shift solenoid valve B AT-542
Gear does not change from D4 → D5 or 5. Shift solenoid valve C AT-547
from M4 → M5 .
6. Control valve assembly AT-629
7. Forward and direct clutch assembly AT-643
AT-662, AT-
OFF vehicle 8. 2nd coast brake
668
9. One-way clutch No.1 AT-668
1. Fluid level and state AT-441
2. TCM AT-459
3. Electric throttle control signal AT-597
4. Shift solenoid valve A AT-537
ON vehicle
5. Shift solenoid valve B AT-542
6. Shift solenoid valve C AT-547
In D or M range, does not downshift to 1st
gear. 7. Shift solenoid valve D AT-557
8. Control valve assembly AT-629
AT-662, AT-
9. 2nd coast brake
668

OFF vehicle 10. 2nd brake AT-662

11. One-way clutch No.1 AT-668
12. One-way clutch No.2 AT-643

Revision: November 2006 AT-454 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page A
1. Fluid level and state AT-441
2. TCM AT-459
B
3. Electric throttle control signal AT-597
4. Shift solenoid valve B AT-542
ON vehicle
In D or M range, does not downshift to 2nd 5. Shift solenoid valve C AT-547 AT
gear. 6. Shift solenoid valve D AT-557
7. Pressure control solenoid valve A AT-532
D
8. Control valve assembly AT-629
9. U/D brake AT-643
OFF vehicle
10. B5 brake AT-670 E
1. Fluid level and state AT-441
2. TCM AT-459
3. Electric throttle control signal AT-597 F
ON vehicle 4. Shift solenoid valve B AT-542
In D or M range, does not downshift to 3rd
5. Shift solenoid valve C AT-547
gear. G
6. Shift solenoid valve D AT-557
7. Control valve assembly AT-629
8. U/D clutch AT-643 H
OFF vehicle
9. U/D brake AT-643
1. Fluid level and state AT-441
I
2. TCM AT-459
3. Electric throttle control signal AT-597
ON vehicle
4. Shift solenoid valve B AT-542 J
In D or M range, does not downshift to 4th 5. Shift solenoid valve C AT-547
gear.
6. Control valve assembly AT-629
K
7. Forward and direct clutch assembly AT-643
AT-662, AT-
OFF vehicle 8. 2nd coast brake
668
L
9. One-way clutch No.1 AT-668
1. Fluid level and state AT-441
2. Stop lamp switch signal AT-617 M
3. ATF temperature sensor AT-483
4. TCM AT-459
ON vehicle
Does not lock-up or lock-up is not released. 5. Shift solenoid valve C AT-547
6. Shift solenoid valve D AT-557
7. Pressure control solenoid valve C AT-576
8. Control valve assembly AT-629
OFF vehicle 9. Torque converter AT-631

Revision: November 2006 AT-455 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page
1. Fluid level and state AT-441
2. TCM AT-459
ON vehicle 3. Shift solenoid valve E AT-562
4. Electric throttle control signal AT-597
Engine brake does not work. 5. Control valve assembly AT-629
AT-662, AT-
6. 2nd coast brake
668
OFF vehicle
7. U/D brake AT-643
8. B5 brake AT-670
1. Pressure control solenoid valve A AT-532
2. Engine speed signal AT-501
3. Electric throttle control signal AT-597
Shift point is high or low. ON vehicle
4. Revolution sensor AT-497
5. TCM AT-459
6. Control valve assembly AT-629
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
3. Turbine revolution sensor AT-493
4. ATF temperature sensor AT-483
ON vehicle 5. Shift solenoid valve A AT-537
Large shock. (“N” →“ D” position) 6. Shift solenoid valve B AT-542
7. Pressure control solenoid valve A AT-532
8. TCM AT-459
9. Control valve assembly AT-629
10. Accumulator AT-643
OFF vehicle
11. Forward and direct clutch assembly AT-643
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
3. Turbine revolution sensor AT-493
4. ATF temperature sensor AT-483
ON vehicle
5. Shift solenoid valve E AT-562
Large shock. (“N” →“ R” position)
6. Pressure control solenoid valve B AT-567
7. TCM AT-459
8. Control valve assembly AT-629
9. Forward and direct clutch assembly AT-643
OFF vehicle
10. 1st and reverse brake AT-643

Revision: November 2006 AT-456 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page A
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
B
3. Turbine revolution sensor AT-493
4. ATF temperature sensor AT-483
5. TCM power input signal AT-592 AT
6. Shift solenoid valve A AT-537
7. Shift solenoid valve B AT-542
D
Shock is too large when shift up. ON vehicle 8. Shift solenoid valve C AT-547
9. Shift solenoid valve D AT-557
10. Shift solenoid valve E AT-562 E
11. Pressure control solenoid valve A AT-532
12. Pressure control solenoid valve B AT-567
13. Pressure control solenoid valve C AT-576 F
14. TCM AT-459
15. Control valve assembly AT-629
G
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
3. Turbine revolution sensor AT-493 H
4. ATF temperature sensor AT-483
5. TCM power input signal AT-592
I
6. Shift solenoid valve A AT-537
7. Shift solenoid valve B AT-542
Shock is too large for coast down. ON vehicle 8. Shift solenoid valve C AT-547 J
9. Shift solenoid valve D AT-557
10. Shift solenoid valve E AT-562
K
11. Pressure control solenoid valve A AT-532
12. Pressure control solenoid valve B AT-567
13. Pressure control solenoid valve C AT-576 L
14. TCM AT-459
15. Control valve assembly AT-629
M

Revision: November 2006 AT-457 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Reference
Symptom Condition Diagnostic Item
page
1. Fluid level and state AT-441
2. Actual engine torque signal AT-501
3. Turbine revolution sensor AT-493
4. ATF temperature sensor AT-483
5. TCM power input signal AT-592
6. Shift solenoid valve A AT-537
7. Shift solenoid valve B AT-542
Shock is too large for kick down. ON vehicle 8. Shift solenoid valve C AT-547
9. Shift solenoid valve D AT-557
10. Shift solenoid valve E AT-562
11. Pressure control solenoid valve A AT-532
12. Pressure control solenoid valve B AT-567
13. Pressure control solenoid valve C AT-576
14. TCM AT-459
15. Control valve assembly AT-629
1. Fluid level and state AT-441
ON vehicle
2. Control valve assembly AT-629
Strange noise in “R”,“N” or“ D” position.
3. Torque converter AT-643
OFF vehicle 4. Parking component AT-634
5. Gear system AT-643
1. PNP switch AT-478
With selector lever in P position, vehicle
does not enter parking condition or, with ON vehicle 2. Control cable adjustment AT-628
selector lever in another position, parking 3. Control valve assembly AT-629
condition is not cancelled.
OFF vehicle 4. Parking component AT-634
1. Fluid level and state AT-441
2. PNP switch AT-478
Vehicle runs with transaxle in “ P” position. ON vehicle AT-628, AT-
3. Control cable and PNP switch adjustment
626
4. Line pressure test AT-443
1. Fluid level and state AT-441
2. PNP switch AT-478
Vehicle runs with transaxle in “N” position. ON vehicle AT-628, AT-
3. Control cable and PNP switch adjustment
626
4. Line pressure test AT-443

Revision: November 2006 AT-458 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
TCM Input/Output Signal Reference Values ECS009D8

TCM TERMINAL CONNECTOR LAYOUT A

AT

D
WCIA0447E

Revision: November 2006 AT-459 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
TCM INSPECTION TABLE
Data are reference value and are measured between each terminal and ground.
Wire Data (Approx.)
Terminal Item Condition
color

When turning ignition switch ON. 0 - 1.5V

1 L/B A/T PV IGN relay

When turning ignition switch OFF. 0V

3 L CAN-H – –
4 P CAN-L – –

Manual mode Selector lever: + side 0V

5 L/Y
switch UP (+) Other than the above Battery voltage

Manual mode Selector lever: - side 0V

6 L/R
switch DOWN (-) Other than the above Battery voltage
14 B Ground Always 0V

Manual mode Selector lever: “P”, “R”, “N” or “D” position 0V

16 SB
switch AUTO Selector lever: Manual shift gate position Battery voltage
Selector lever: Manual shift gate position (neu-
Manual mode 0V
19 P/B tral)
switch MANUAL
Other than the above Battery voltage
Pressure control
When engine is running with idle speed and
21 G/B solenoid valve B 0V
setting selector lever to “P” position.
ground

When turning ignition switch ON. Battery voltage

Revolution sensor
22 L
power supply
When turning ignition switch OFF. 0V

When turning ignition switch ON. Battery voltage

Turbine revolution
23 G sensor power sup-
ply
When turning ignition switch OFF. 0V

Selector lever: “P” and “R” position 0V

24 OR/B PNP switch A
Other than the above Battery voltage

When shift solenoid valve B operates.

Shift solenoid Battery voltage
25 G/R (When driving in 1st or 5th gear.)
valve B
When shift solenoid valve B does not operate. 0V
When shift solenoid valve D operates.
Shift solenoid Battery voltage
26 PU/W (When driving in 3rd, 4th or 5th gear.)
valve D
When shift solenoid valve D does not operate. 0V
Power supply
27 Y/R Always Battery voltage
(Memory back-up)
Pressure control
When engine is running with idle speed and
28 W solenoid valve C 0V
setting selector lever to “P” position.
ground

Revision: November 2006 AT-460 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Wire Data (Approx.)
Terminal Item Condition
color A
29 B/W Revolution sensor When moving at 20 km/h (12 MPH) in 1st gear. 119Hz

Turbine revolution B
30 R When moving at 20 km/h (12 MPH) in 1st gear. 371Hz
sensor

Selector lever: “R”, “N”, “D” and manual mode

0V
AT
31 BR PNP switch B position
Other than the above Battery voltage
Selector lever: “D” and manual mode position 0V D
32 P/B PNP switch C
Other than the above Battery voltage
Selector lever: “P” and “N” position Battery voltage
33 R/B PNP switch PN E
Other than the above 0V

When turning ignition switch ON. Battery voltage F

34 Y Power supply

When turning ignition switch OFF. 0V G

Pressure control When engine is running with idle speed and

35 L/Y 300Hz
solenoid valve A setting selector lever to “P” position. H
Pressure control When engine is running with idle speed and
36 OR/B 300Hz
solenoid valve B setting selector lever to “P” position.
When shift solenoid valve C operates. I
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid
37 R/B
valve C
When shift solenoid valve C does not operate. 0V
J

When turning ignition switch ON. Battery voltage

K
Power supply
38 R/Y
(A/T PV IGN relay)
Measure 3 seconds after switching “OFF” the
0V
ignition switch. L

When turning ignition switch ON. Battery voltage

Power supply
M
39 R/Y (A/T PV IGN
relay)
Measure 3 seconds after switching “OFF” the
0V
ignition switch.

Pressure control
When engine is running with idle speed and
40 L/G solenoid valve A 0V
setting selector lever to “P” position.
ground
When ATF temperature 0°C (32°F) 4.0V 9.8 kΩ

Fluid temperature When ATF temperature 20°C (68°F) 3.0V 4.2 kΩ

41 R/Y
sensor When ATF temperature 80°C (176°F) 0.8V 0.54 kΩ
When ATF temperature 100°C (212°F) 0.5V 0.31 kΩ
Fluid temperature
42 LG Always 0V
sensor ground

Revision: November 2006 AT-461 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Wire Data (Approx.)
Terminal Item Condition
color
Selector lever: “P” and “N” position 0V
43 PU/W PNP switch PA
Other than the above Battery voltage

Pressure control When engine is running with idle speed and

45 OR 300Hz
solenoid valve C setting selector lever to “P” position.

When shift solenoid valve A operates.

Shift solenoid Battery voltage
46 W/G (When driving in 1st gear.)
valve A
When shift solenoid valve A does not operate. 0V
When shift solenoid valve E operates.
Shift solenoid Battery voltage
47 BR/Y (When driving in reverse gear.)
valve E
When shift solenoid valve E does not operate. 0V
48 B Ground Always 0V

CONSULT-II Function (TCM) ECS009D9

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
TCM diagnostic mode Description
Supports inspections and adjustments. Commands are transmitted to the TCM for setting the status
WORK SUPPORT suitable for required operation, input/output signals are received from the TCM and received data is
displayed.
SELF-DIAG RESULTS Displays TCM self-diagnosis results.
DATA MONITOR Displays TCM input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
FUNCTION TEST Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or "NG".
ECU PART NUMBER TCM part number can be read.

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (Refer to AT-463 ), place check
marks for results on the AT-436, "DIAGNOSTIC WORKSHEET" . Reference pages are provided following the
items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
– Actual shift schedule has more or less tolerance or allowance,
– Shift schedule indicated in Service Manual refers to the point where shifts start, and
– Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
CONSULT-II SETTING PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

Revision: November 2006 AT-462 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
● For details, refer to the separate “CONSULT-II Operations Man-
ual”. A
1. Turn ignition switch “OFF”.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector, which is located in driver instrument panel B
(lower).
3. Turn ignition switch “ON”. (Do not start engine.)
AT

LCIA0042E

D
4. Touch “START (NISSAN BASED VHCL)”.

G
BCIA0029E

5. Touch “A/T”.
H
If “A/T” is not indicated, go to GI-39, "Consult-II Data Link Con-
nector (DLC) Circuit" .
6. Perform each diagnostic test mode according to each service
procedure. I

BCIA0030E
K
WORK SUPPORT MODE
Work item
L
Work item Condition Usage
INITIALIZATION Under the following conditions. Use to initialize TCM in a case of replacing tran-
● Ignition switch “ON”. saxle or TCM. Refer to AT-390, "Precautions for
A/T Assembly or TCM Replacement" . M
● Selector lever “P” or “N” position.
● Engine not running.
● Vehicle speed is 0 km/h (0 MPH).
● Ignition voltage is more than 10.5V.
● Malfunction was not detected.

SELF-DIAG RESULT MODE

Operation procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT-462, "CONSULT-II SETTING PROCE-
DURE" .

Revision: November 2006 AT-463 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
2. Touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:
● The details for “TIME” are as follow:

– “CRNT”: Error currently detected with TCM.

– “PAST”: Error detected in the past and memorized with

TCM.
● Touch “F.F.DATA” on “SELF-DIAG RESULTS” screen to
display freeze frame data. Freeze frame data shows driv- SCIA2741E
ing condition when malfunction is detected.
For freeze frame data items, refer to AT-466, "Display item list" .
Display item list
X: Applicable —: Not applicable
TCM self-diagnosis OBD-II (DTC)
MIL indicator
Items (CONSULT-II A/T CHECK “TRANSMIS- lamp*1 ,
Malfunction is detected when...
screen terms) indicator SION” with “ENGINE” with
lamp*3 CONSULT-II CONSULT-II or
GST
CAN COMM CIR-
● When a malfunction is detected in CAN communications X U1000*4 U1000*4
CUIT
VEH SPD SE/CIR- ● ECM detects a malfunction in vehicle speed sensor signal,
X P0500 P0500
MTR after that TCM inputs the result by CAN communication.
TCM PROCESSOR ● TCM processor is malfunctioning. — P0613 —
PNP SW/CIRC ● PNP switch signals input with impossible pattern X P0705 P0705
● Normal voltage is not applied to ATF temperature sensor
ATF TEMP SEN/ due to open, short, and so on.
X P0710 P0710
CIRC ● During running, the ATF temperature sensor signal voltage
is excessively high or low.
FLUID TEMP SEN ● ATF temperature signal does not change. — P0711 P0711*2
● Signal from turbine revolution sensor does not input due to
TURBINE SENSOR open, short, and so on. X P0717 P0717
● Unexpected signal input during running.
● Signal from revolution sensor does not input due to open,
VHCL SPEED short, and so on. X P0722 P0722
SEN-A/T
● Unexpected signal input during running.
● Malfunction is detected in engine speed signal, actual
ENG SPD INP
engine torque signal or torque reduction signal that is out- X P0726 P0726
PERFOR
put from ECM through CAN communication.
A/T 1ST GR ● A/T cannot be shifted to the 1st gear position even if elec-
FNCTN trical circuit is good.
X P0731 P0731*2

A/T 2ND GR ● A/T cannot be shifted to the 2nd gear position even if elec-
FNCTN trical circuit is good.
X P0732 P0732*2

A/T 3RD GR ● A/T cannot be shifted to the 3rd gear position even if elec-
FNCTN trical circuit is good.
X P0733 P0733*2

A/T 4TH GR ● A/T cannot be shifted to the 4th gear position even if elec-
FNCTN trical circuit is good.
X P0734 P0734*2

A/T 5TH GR ● A/T cannot be shifted to the 5th gear position even if elec-
FNCTN trical circuit is good.
X P0735 P0735*2

A/T TCC S/V ● A/T cannot perform lock-up even if electrical circuit is
X P0744 P0744*2
FNCTN good.

Revision: November 2006 AT-464 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
TCM self-diagnosis OBD-II (DTC)
A
MIL indicator
Items (CONSULT-II A/T CHECK “TRANSMIS- lamp ,*1
Malfunction is detected when...
screen terms) indicator SION” with “ENGINE” with
lamp*3 CONSULT-II CONSULT-II or B
GST
PC SOL A(L/
X P0745 P0745
PRESS) ● Normal voltage is not applied to solenoid due to open, AT
SHIFT SOL A short, and so on. X P0750 P0750
● TCM detects as irregular by comparing target value with
SHIFT SOL B X P0755 P0755
monitor value.
SHIFT SOL C X P0760 P0760 D
● Condition of shift solenoid valve C is different from monitor
SFT SOL C STUCK
ON
value, and relation between gear position and actual gear X P0762 P0762*2
ratio is irregular. E
SHIFT SOL D ● Normal voltage is not applied to solenoid due to open, X P0765 P0765
SHIFT SOL E short, and so on. X P0770 P0770
● TCM detects as irregular by comparing target value with F
PC SOL B(SFT/
monitor value. X P0775 P0775
PRS)
● No rotation change occurs between input (turbine revolu-
tion sensor) and output (revolution sensor) and shifting G
SHIFT time is long. X P0780 P0780*2
● Shifting ends immediately.
● Condition in malfunction engine revs up usually shifting. H
● Normal voltage is not applied to solenoid due to open,
PC SOL short, and so on.
X P0795 P0795
C(TCC&SFT) ● TCM detects as irregular by comparing target value with I
monitor value.
● Condition of pressure control solenoid valve C is different
PC SOL C STC ON from monitor value, and relation between gear position X P0797 P0797*2 J
and actual gear ratio or lock-up status is irregular.
MANUAL MODE ● Manual mode switch signal is incorrectly input due to
— P0826 —
SWITCH open, short, and so on.
K
TCM POWER INPT
● Voltage supplied to TCM is too low. — P0882 P0882
SIG
● The electric throttle control system for ECM is in a mal- L
ELEC TH CON-
function, after that TCM inputs the result by CAN commni- X P1726 P1726
TROL
cation.
NO DTC IS
DETECTED. M
FURTHER TEST- ● No NG item has been detected. — X X
ING MAY BE
REQUIRED.
*1: Refer to AT-430, "Malfunction Indicator Lamp (MIL)" .
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
*3: Indicate it when performing TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS). Refer to AT-468, "TCM SELF-DIAGNOSTIC
PROCEDURE (NO TOOLS)" .
*4: If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to AT-471 .

DATA MONITOR MODE

Operation procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT-462, "CONSULT-II SETTING PROCE-
DURE" .
2. Touch “DATA MONITOR”.
NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.

Revision: November 2006 AT-465 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Display item list
X: Standard —: Not applicable
Monitor item selection
SELEC-
Monitored item (Unit) ECU Remarks
MAIN SIG- TION
INPUT
NALS FROM
SIGNALS
MENU
Vehicle speed recognized by the
VHCL/S SE-A/T (km/h) X X X
TCM.
VHCL/S SE-MTR* (km/h) X — X
FLUID TEMP SE* (V) X — X
FLUID TEMP* (°C) — — X
Displays status of engine coolant
temperature.
COOLAN TEMP* (°C) — — X
Signal input with CAN communica-
tion line.
BATTERY VOLT* (V) X — X
Signal input with CAN communica-
ENGINE SPEED* (rpm) X X X
tion line.
Turbine revolution computed from
TURBINE REV* (rpm) X — X signal of turbine revolution sensor is
displayed.
Output revolution computed from
OUTPUT REV* (rpm) — — X signal of revolution sensor is dis-
played.
PNP SW A* (ON/OFF) X — X
PNP SW B* (ON/OFF) X — X
PNP SW C* (ON/OFF) X — X
PNP SW PA* (ON/OFF) X — X
PNP SW PN (ON/OFF) X — X
MANU MODE SW* (ON/OFF) X — X
NON M-MODE SW* (ON/OFF) X — X
UP SW* (ON/OFF) X — X
DOWN SW* (ON/OFF) X — X
RANGE SLCT SW (ON/OFF) X — X Not mounted but displayed.
This means stop lamp switch signal
BRAKE SW* (ON/OFF) X — X
via CAN communication line.
CLSO THL POS (ON/OFF) X — X
ASCD SIGNAL (ON/OFF) X — X
Signal input with CAN communica-
ASCD OD OFF (ON/OFF) X — X
tion line.
ABS SIGNAL (ON/OFF) X — X
TCS SIGNAL (ON/OFF) X — X
TCS GEAR HOLD (ON/OFF) X — X
Requests TCM for shift schedule
TCS SFT CNG (ON/OFF) — — X
change.
Always “ON” during lock-up, regard-
LOCK-UP* (ON/OFF) — — X
less of types.
Displays “##” in manual mode or
SLCT LVR POSI* — — X
when unknown.
Displays “##” in non-manual mode
MANU GR POSI — — X
or when unknown.

Revision: November 2006 AT-466 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Monitor item selection
A
SELEC-
Monitored item (Unit) ECU Remarks
MAIN SIG- TION
INPUT
NALS FROM
SIGNALS
MENU B
Indicates current gear position. Also
when setting in P or N position, indi-
GEAR* — — X cate by shift solenoid valves.
Displays “##” in R position or when
AT
unknown.
Displays “##” in R position or when
NEXT GR POSI — — X D
unknown.
Displays status of engine torque
REDCT DEM SIG (ON/OFF) — — X
reduction demand signal.
TC SLIP RATIO — — X E
Difference between engine speed
SLIP REV (rpm) — — X and torque converter input shaft
speed. F
Degree of opening for accelerator
recognized by the TCM.
ACCELE ANGLE* (%) X X X
For fail-safe operation, the specific G
value used for control is displayed.
PC SOL A OUT* (A) — — X
PC SOL A MON* (A) — X X H
PC SOL B OUT* (A) — — X
PC SOL B MON* (A) — X X
PC SOL C OUT* (A) — — X
I

PC SOL C MON* (A) — X X

SFT SOL A OUT* (ON/OFF) — — X J
SFT SOL B OUT* (ON/OFF) — — X
SFT SOL C OUT* (ON/OFF) — — X
SFT SOL D OUT* (ON/OFF) — — X K
SFT SOL E OUT* (ON/OFF) — — X
SFT SOL A MON* (ON/OFF) — X X
L
SFT SOL B MON* (ON/OFF) — X X
SFT SOL C MON* (ON/OFF) — X X
SFT SOL D MON* (ON/OFF) — X X M
SFT SOL E MON* (ON/OFF) — X X
Signal input with CAN communica-
ENGINE TORQUE* (Nm) — — X
tion line.
TRQ REDCT REQ* (Nm) — — X Torque reduction request
TRQ LIMIT REQ* (Nm) — — X Torque limitation request
WO AT REQ TRQ* (Nm) — — X Engine torque without A/T request
G-RATE (G) — — X
Numbers indicate types of fail-safe
F-SAFE MODE (OK/1 to 10) — X X modes. Refer to AT-432, "Fail-safe
mode list" .
Signal input with CAN communica-
VDC SIGNAL (ON/OFF) X — X
tion line.

Revision: November 2006 AT-467 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Monitor item selection
SELEC-
Monitored item (Unit) ECU Remarks
MAIN SIG- TION
INPUT
NALS FROM
SIGNALS
MENU
The details for data of shift schedule
are as follow:
NOR: Normal mode
UP1: Upslope 1 mode
UP2: Upslope 2 mode (steeper than
SHIFT SCHDULE — — X
“UP1”)
DOWN: Downslope mode
HOT1: Hot 1 mode
HOT2: Hot 2 mode (higher tempera-
ture than “HOT1”)
Displays the value measured by the
Voltage (V) — — X
voltage probe.
Frequency (Hz) — — X
DUTY-HI (high) (%) — — X
The value measured by the pulse
DUTY-LOW (low) (%) — — X
probe is displayed.
PLS WIDTH-HI (ms) — — X
PLS WIDTH-LOW (ms) — — X
*: Also, the items appear on CONSULT-II screen in freeze frame data mode of self-diagnostic results only if DTC is detected. For details,
refer to AT-463, "SELF-DIAG RESULT MODE" .

ACTIVE TEST MODE

Test item
Test item Condition Description
SHIFT SOLENOID A
SHIFT SOLENOID B Under the following conditions.
● Ignition switch “ON” Each shift solenoid operate ON/OFF by receiving the
SHIFT SOLENOID C
drive signal.
● Selector lever “P” or “N” position
SHIFT SOLENOID D
● Engine not running
SHIFT SOLENOID E
● Vehicle speed is 0 km/h (0 MPH).
PRESSURE CONTROL SOL A ● Ignition voltage is more than 10.5V.
Each pressure control solenoid is activated by receiv-
PRESSURE CONTROL SOL B ● Malfunction was not detected.* ing the drive signal.
PRESSURE CONTROL SOL C
*: Except when P0711, P0731, P0732, P0733, P0734, P0735, P0744, P0762, P0780 or P0797 is detected.
NOTE:
Approximately 10 seconds after the operation is begun, “TEST IS STOPPED” will be displayed.

Diagnostic Procedure Without CONSULT-II ECS009DA

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to EC-735, "Generic Scan Tool (GST) Function" .
OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-669, "Malfunction Indicator Lamp (MIL)" .
TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Description
As a method for locating the suspect system, when the self-diagnostics start signal is input, the memory for
the malfunction location is output and the A/T CHECK indicator lamp flashes to display the corresponding
DTC.

Revision: November 2006 AT-468 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Diagnostic procedure
A
1. CHECK A/T CHECK INDICATOR LAMP
1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.
2. Turn ignition switch “ON” and “OFF” at least twice, then leave it in the “OFF” position. B
3. Wait 10 seconds.
4. Turn ignition switch “ON”. (Do not start engine.)
AT
5. Does A/T CHECK indicator lamp come on for about 2 seconds?
Yes or No
Yes >> GO TO 2. D
No >> GO TO AT-598, "A/T CHECK Indicator Lamp does not come on" .

2. JUDGEMENT PROCEDURE E
NOTE:
After turning ignition switch “ON” (at step 6), perform within 2 seconds (while A/T CHECK indicator lamp come
on.). F
1. Turn ignition switch “OFF”.
2. Push shift lock release button.
3. Move selector lever from “P” to “D” position. G
4. Release accelerator pedal. (Set the closed throttle position signal “ON”.)
5. Depress brake pedal. (Stop lamp switch signal “ON”.)
6. Turn ignition switch “ON”. (Do not start engine.) H
7. Move the selector lever to the “N” position and release brake pedal. (Stop lamp switch signal “OFF”.)
8. Move the selector lever to “D” position and depress brake pedal. (Stop lamp switch signal “ON”.)
I
9. Release brake pedal. (Stop lamp switch signal “OFF”.)
10. Depress accelerator pedal fully and release it.
J
>> GO TO 3.

3. CHECK SELF-DIAGNOSIS CODE K

Check A/T CHECK indicator lamp. Refer to AT-470, "Judgement self-diagnosis code" .
If the system does not go into self-diagnostics, refer to AT-617, "TCM Self-diagnosis Does Not Activate" .
L
>> DIAGNOSIS END

Revision: November 2006 AT-469 2006 Altima

 TROUBLE DIAGNOSIS
[RE5F22A]
Judgement self-diagnosis code
When a malfunction is detected, the malfunction route is indicated by longer illumination of the indicator lamp.

SCIA2758E

Erase self-diagnosis
● In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is
stored into the control unit as necessary during use by the user. This memory is not erased no matter how
many times the ignition switch is turned ON and OFF.
● However, this information is erased by turning ignition switch “OFF” after executing self-diagnostics or by
erasing the memory using the CONSULT-II.

Revision: November 2006 AT-470 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE5F22A]
DTC U1000 CAN COMMUNICATION LINE PFP:23710
A
Description ECS009DB

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability. B
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only. AT

On Board Diagnosis Logic ECS009DC

● This is an OBD-II self-diagnostic item. D

● Diagnostic trouble code “CAN COMM CIRCUIT” with CONSULT-II or U1000 without CONSULT-II is
detected when TCM cannot communicate to other control units.
E
Possible Cause ECS009DD

Harness or connectors
(CAN communication line is open or shorted.) F
DTC Confirmation Procedure ECS009DE

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF” G
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
H
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
I
3. Start engine.
4. Drive vehicle and maintain the following condition for at least 6
seconds. J
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT-473, "Diagnostic Procedure" .
K

BCIA0030E

WITH GST L
Follow the procedure “WITH CONSULT-II”.

Revision: November 2006 AT-471 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE5F22A]
Wiring Diagram — AT — CAN ECS009DF

WCWA0187E

Revision: November 2006 AT-472 2006 Altima

 DTC U1000 CAN COMMUNICATION LINE
[RE5F22A]
TCM terminals and data are reference value.
Wire A
Terminal Item Condition Data (Approx.)
color
3 L CAN H – –
4 P CAN L – – B

Diagnostic Procedure ECS009DG

1. CHECK CAN COMMUNICATION CIRCUIT AT

With CONSULT-II
1. Turn ignition switch “ON” and start engine. D
2. Select “A/T” with “SELF-DIAG RESULTS” mode in CONSULT-II.
3. The “CAN COMM CIRCUIT” is detected.
Yes or No? E
Yes >> Print out CONSULT-II screen, GO TO LAN-3, "Precau-
tions When Using CONSULT-II" .
No >> INSPECTION END F

SCIA2818E

Revision: November 2006 AT-473 2006 Altima

 DTC P0500 VEHICLE SPEED SENSOR MTR
[RE5F22A]
DTC P0500 VEHICLE SPEED SENSOR MTR PFP:24814

Description ECS009DH

The vehicle speed sensor·MTR signal is transmitted from unified meter and A/C amp. to TCM by CAN commu-
nication line. The signal functions as an auxiliary device to the revolution sensor when it is malfunctioning. The
TCM will then use the vehicle speed sensor·MTR signal.
On Board Diagnosis Logic ECS009DI

● This is not an OBD-II self-diagnostic item.

● Diagnostic trouble code “VEH SPD SE/CIR-MTR” with CONSULT-II or 15th judgement flicker without
CONSULT-II is detected when TCM does not receive the proper vehicle speed sensor MTR signal (input
by CAN communication) from unified meter and A/C amp.
Possible Cause ECS009DJ

● Harness or connectors
(The signal circuit is open or shorted.)
● Unified meter and A/C amp.
● ABS actuator and electric unit (control unit)
● Wheel sensor
DTC Confirmation Procedure ECS009DK

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Start engine.
3. Drive vehicle and maintain the following conditions for at least 5
consecutive seconds.
VHCL/S SE-A/T: 30 km/h (17 MPH) or more
ACCELE ANGLE: 10 % or less
4. If DTC is detected, go to AT-475, "Diagnostic Procedure" .

BCIA0030E

Revision: November 2006 AT-474 2006 Altima

 DTC P0500 VEHICLE SPEED SENSOR MTR
[RE5F22A]
Diagnostic Procedure ECS009DL

1. CHECK INPUT SIGNALS A

With CONSULT-II
1. Start engine. B
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Drive vehicle, and then make sure that the values of “VHCL/S
SE-A/T” and “VHCL/S SE-MTR” are same. AT
OK or NG
OK >> GO TO 4.
D
NG >> GO TO 2.

SCIA2922E
F
2. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Refer to BRC-8, "TROUBLE DIAGNOSIS" (with ABS), BRC-53, "TROUBLE DIAGNOSIS" (with TCS/ABS). G
OK or NG
OK >> GO TO 3.
NG >> If NG, recheck pin terminals for damage or loose connection with harness connector. H

3. CHECK DTC WITH UNIFIED METER AND A/C AMP.

Refer to DI-5, "COMBINATION METERS" . I
OK or NG
OK >> GO TO 4.
J
NG >> If NG, recheck pin terminals for damage or loose connection with harness connector.

4. CHECK DTC
K
Perform “DTC Confirmation Procedure”. Refer to AT-474, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END L
NG >> GO TO 5.

5. CHECK TCM M
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-475 2006 Altima

 DTC P0613 TCM PROCESSOR
[RE5F22A]
DTC P0613 TCM PROCESSOR PFP:31036

Description ECS009DM

The TCM consists of a microcomputer and connectors for signal

input and output and for power supply. The TCM controls the A/T.

SCIA2820E

On Board Diagnosis Logic ECS009DN

● This is not an OBD-II self-diagnostic item.

● Diagnostic trouble code “TCM PROCESSOR” with CONSULT-II is detected when TCM processor is mal-
functioning.
Possible Cause ECS009DO

TCM
DTC Confirmation Procedure ECS009DP

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Run engine for at least 2 consecutive seconds at idle speed.
5. If DTC is detected, go to AT-477, "Diagnostic Procedure" .

BCIA0030E

Revision: November 2006 AT-476 2006 Altima

 DTC P0613 TCM PROCESSOR
[RE5F22A]
Diagnostic Procedure ECS009DQ

1. CHECK DTC A

With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) B
2. Select “A/T” with “SELF-DIAG RESULTS” mode in CONSULT-II.
3. Touch “ERASE”.
AT
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform DTC confirmation procedure, AT-476, "DTC Confirma-
tion Procedure" .
D
Is the “TCM PROCESSOR” displayed again?
YES >> Replace TCM.
NO >> Inspection End. E
BCIA0031E

Revision: November 2006 AT-477 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE5F22A]
DTC P0705 PARK/NEUTRAL POSITION SWITCH PFP:32006

Description ECS009DR

● The park/neutral position (PNP) switch includes a transmission position switch.

● The transmission range switch detects the selector lever position and sends a signal to the TCM.
● TCM judges the selector lever position by the park/neutral position (PNP) switch signal.
Selector lever PNP switch A PNP switch B PNP switch C PNP switch PA PNP switch PN
P ON OFF OFF ON ON
R ON ON OFF OFF OFF
N OFF ON OFF ON ON
D OFF ON ON OFF OFF

On Board Diagnosis Logic ECS009DS

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “PNP SW/CIRC” with CONSULT-II or P0705 without CONSULT-II is detected
when PNP switch signals input with impossible pattern.
Possible Cause ECS009DT

● Harness or connectors
[The park/neutral position (PNP) switch and TCM circuit is open or shorted.]
● Park/neutral position (PNP) switch
DTC Confirmation Procedure ECS009DU

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Move selector lever to each position.
SLCT LVR POSI: “P”, “R”, “N” or “D” position
4. Wait for at least 5 consecutive seconds at each position.
5. If DTC is detected, go to AT-480, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-478 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE5F22A]
Wiring Diagram — AT — PNP/SW ECS009DV

AT

WCWA0188E

Revision: November 2006 AT-479 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
Selector lever: “P” and “R” position 0V
24 OR/B PNP switch A
Other than the above Battery voltage
Selector lever: “R”, “N”, “D” and manual mode position 0V
31 BR PNP switch B
Other than the above Battery voltage
Selector lever: “D” and manual mode position 0V
32 P/B PNP switch C
Other than the above Battery voltage
Selector lever: “P” and “N” position Battery voltage
33 R/B PNP switch PN
Other than the above 0V
Selector lever: “P” and “N” position 0V
43 PU/W PNP switch PA
Other than the above Battery voltage

Diagnostic Procedure ECS009DW

1. CHECK PNP SWITCH CIRCUIT

With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Move selector lever to “P”, “N”, “R” and “D” position and check
the value of “PNP SW A”, “PNP SW B”, “PNP SW C”, “PNP SW
PA” and “PNP SW PN”.
Selector “PNP SW “PNP SW “PNP SW “PNP SW “PNP SW
lever A” B” C” PA” PN”
P ON OFF OFF ON ON
R ON ON OFF OFF OFF
SCIA2823E
N OFF ON OFF ON ON
D OFF ON ON OFF OFF

Without CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Move selector lever to “P“, “R”, “N”, or “D” position and check
voltage between the TCM connector terminals and ground.
Connector No. F57
Selector Terminal (Wire color)
lever
24 - 31 - 32 - 33 - 43 -
Ground Ground Ground Ground Ground
Battery Battery Battery
P 0V 0V
voltage voltage voltage
SCIA2826E
Battery Battery
R 0V 0V 0V
voltage voltage
Battery Battery Battery
N 0V 0V
voltage voltage voltage
Battery Battery
D 0V 0V 0V
voltage voltage
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.

Revision: November 2006 AT-480 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE5F22A]
2. CHECK PNP SWITCH POWER SOURCE CIRCUIT A
1. Turn ignition switch “OFF”.
2. Disconnect the PNP switch connector.
3. Turn ignition switch “ON”. (Do not start engine.) B
4. Check voltage between PNP switch connector terminals 2, 5
and ground.
AT
Connector Terminal Voltage
2 - Ground
F29 Battery voltage
5 - Ground D
5. Turn ignition switch “OFF”.
6. Check voltage between PNP switch connector terminals 2, 5
and ground. E
SCIA2869E

Connector Terminal (Wire color) Voltage

2 - Ground F
F29 0V
5 - Ground
7. If OK, check harness for short-circuit to ground or power source.
G
OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or replace damaged parts.
H
● Harness for short or open between ignition switch and PNP switch

● Ignition switch and fuse

Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
I
3. CHECK HARNESS BETWEEN TCM AND PNP SWITCH
1. Turn ignition switch “OFF”. J
2. Disconnect the TCM connector and PNP switch connector.
3. Check continuity between TCM connector terminals 24, 31, 32,
43 and ground. K

Connector Terminal Condition Continuity

Selector lever: “P” and “R” position Yes L
24 - Ground
Other than the above No
Selector lever: “R”, “N”, “D” and
Yes
31 - Ground manual mode position SCIA2827E M
Other than the above No
F57
Selector lever: “D” and manual
Yes
32 - Ground mode position
Other than the above No
Selector lever: “P” and “N” position Yes
43 - Ground
Other than the above No

4. If OK, check the following.

– Harness for short-circuit to ground or power source.
– Open or short-circuit in the harness between combination meter and TCM.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.

Revision: November 2006 AT-481 2006 Altima

 DTC P0705 PARK/NEUTRAL POSITION SWITCH
[RE5F22A]
4. DETECT MALFUNCTIONING ITEM
Check the following.
● Open or short-circuit in the harness between TCM and PNP switch A, B, C, PA.
● Open or short-circuit in the harness for ground of PNP switch.
● PNP switch. Refer to AT-482, "Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

5. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-478, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.

6. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009DX

PNP SWITCH
1. Check continuity between PNP switch terminals while moving selector lever. Refer to the following table.

SCIA2825E

2. If NG, check again with control cable disconnected. (Refer to Step 1 above.)
3. If OK on step 2, adjust control cable. Refer to AT-628, "Control Cable Adjustment" .
4. If NG on step 2, remove park/neutral position (PNP) switch from A/T and check continuity of park/neutral
position (PNP) switch terminals. (Refer to step 1 above.)
5. If OK on step 4, adjust park/neutral position (PNP) switch. Refer to AT-626, "Park/Neutral Position (PNP)
Switch Adjustment" .
6. If NG on step 4, replace park/neutral position (PNP) switch.

Revision: November 2006 AT-482 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE5F22A]
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT PFP:31940
A
Description ECS009DY

The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
B
On Board Diagnosis Logic ECS009DZ

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “ATF TEMP SEN/CIRC” with CONSULT-II or P0710 without CONSULT-II is AT
detected under the following conditions.
– When normal voltage not applied to ATF temperature sensor due to open, short, and so on.
– When during running, the ATF temperature sensor signal voltage is excessively high or low. D
Possible Cause ECS009E0

● Harness or connectors E
(The sensor circuit is open or shorted.)
● A/T fluid temperature sensor
DTC Confirmation Procedure ECS009E1 F
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. G
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
H
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
I
4. Warm up engine so that engine coolant temperature is more
than 50°C (122°F).
COOLAN TEMP: More than 50°C (122°F)
J
5. Maintain the following conditions for at least 16 minutes (Total).
(It is not necessary to drive vehicle.)
COOLAN TEMP: More than 50°C (122°F)
SLCT LVR POSI: “D” position K
BCIA0030E
6. If DTC is detected, go to AT-485, "Diagnostic Procedure" .
WITH GST L
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-483 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE5F22A]
Wiring Diagram — AT — FTS ECS009E2

WCWA0189E

Revision: November 2006 AT-484 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire Data (Approx.) A
Terminal Item Condition
color
When ATF temperature 0°C (32°F) 4.0V 9.8 kΩ

Fluid temperature When ATF temperature 20°C (68°F) 3.0V 4.2 kΩ B

41 R/Y
sensor When ATF temperature 80°C (176°F) 0.8V .54 kΩ
When ATF temperature 100°C (212°F) 0.5V .31 kΩ
AT
Fluid temperature
42 LG Always 0V
sensor ground

Diagnostic Procedure ECS009E3 D

1. CHECK FLUID TEMPERATURE SENSOR SIGNAL
With CONSULT-II E
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Read out the value of “FLUID TEMP SE”. F

Item name Condition Display value (Approx.)

0°C (32°F) 4.0V G
20°C (68°F) 3.0V
Fluid temperature sensor
80°C (176°F) 0.8V
100°C (212°F) 0.5V
H

SCIA2870E
I

Without CONSULT-II
1. Start engine. J
2. Check voltage between TCM connector terminals 41 and 42
while warming up A/T. Refer to AT-484, "Wiring Diagram — AT
— FTS" . K

Connector Terminal Temperature Voltage (Approx.)

0°C (32°F) 4.0V L
20°C (68°F) 3.0V
F57 41 - 42 (ground)
80°C (176°F) 0.8V
100°C (212°F) 0.5V
M

3. Turn ignition switch “OFF”. SCIA2871E

4. Disconnect the TCM connector.

5. Check if there is continuity between the connector terminal and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.

Revision: November 2006 AT-485 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE5F22A]
2. CHECK FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between terminals 41 and 42.
Resistance
Connector Terminal Temperature
(Approx.)
0°C (32°F) 9.8 kΩ
20°C (68°F) 4.2 kΩ
F57 41 - 42 (ground)
80°C (176°F) 0.54 kΩ
100°C (212°F) 0.31 kΩ

4. Check if there is continuity between the connector terminal and

ground. SCIA2872E

OK or NG
OK >> GO TO 6.
NG >> GO TO 3.

3. CHECK TERMINAL CORD ASSEMBLY WITH A/T FLUID TEMPERATURE SENSOR

1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 4 and 8.
Connector Terminal Temperature Resistance (Approx.)
0°C (32°F) 9.8 kΩ
20°C (68°F) 4.2 kΩ
F30 4-8
80°C (176°F) 0.54 kΩ
100°C (212°F) 0.31 kΩ
OK or NG
OK >> GO TO 4.
SCIA2873E
NG >> GO TO 5.

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-486 2006 Altima

 DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
[RE5F22A]
5. CHECK A/T FLUID TEMPERATURE SENSOR A
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect A/T fluid temperature sensor.
3. Check resistance between terminals 4 and 8. B

Connector Terminal Temperature Resistance

10°C (50°F) 5.80 - 7.09kΩ AT
F30 4-8
110°C (230°F) 0.23 - 0.26kΩ
OK or NG
D
OK >> GO TO 6.
NG >> Repair or replace terminal cord assembly. Refer to AT-
629, "Terminal Cord Assembly" .
E
WCIA0448E

6. CHECK DTC
F
Perform “DTC Confirmation Procedure”. Refer to AT-483, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END G
NG >> GO TO 7.

7. CHECK TCM H
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG I
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
J
Component Inspection ECS009E4

A/T FLUID TEMPERATURE SENSOR

1. Remove side cover. Refer to AT-629, "Side cover" . K
2. Disconnect A/T fluid temperature sensor.
3. Check resistance between terminals 4 and 8.
L
Connector Terminal Temperature Resistance
10°C (50°F) 5.80 - 7.09kΩ
F30 4-8
110°C (230°F) 0.23 - 0.26kΩ M
4. If NG, repair and replace terminal cord assembly. Refer to AT-
629, "Terminal Cord Assembly" .

WCIA0448E

Revision: November 2006 AT-487 2006 Altima

 DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE
[RE5F22A]
DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE PFP:31940

Description ECS009E5

The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
On Board Diagnosis Logic ECS009E6

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “FLUID TEMP SEN” with CONSULT-II or P0711 without CONSULT-II is detected
when ATF temperature signal does not change.
Possible Cause ECS009E7

● Harness or connectors
(The sensor circuit is open or shorted.)
● A/T fluid temperature sensor
DTC Confirmation Procedure ECS009E8

CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least
15 minutes (Total). (It is not necessary to maintain continuously.)
VHCL SPEED SE-A/T: 40 km/h (25 MPH) or more
SLCT LVR POSI: “D” position
5. If DTC is detected, go to AT-490, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-488 2006 Altima

 DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE
[RE5F22A]
Wiring Diagram — AT — FTSP ECS009E9

AT

WCWA0190E

Revision: November 2006 AT-489 2006 Altima

 DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When ATF temperature 0°C (32°F) 4.0V 9.8 kΩ

Fluid temperature When ATF temperature 20°C (68°F) 3.0V 4.2 kΩ

41 R/Y
sensor When ATF temperature 80°C (176°F) 0.8V .54 kΩ
When ATF temperature 100°C (212°F) 0.5V .31 kΩ
Fluid temperature
42 LG Always 0V
sensor ground

Diagnostic Procedure ECS009EA

1. CHECK FLUID TEMPERATURE SENSOR SIGNAL

With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
Item name Condition Display value (Approx.)
0°C (32°F) 4.0V
20°C (68°F) 3.0V
Fluid temperature sensor
80°C (176°F) 0.8V
100°C (212°F) 0.5V

SCIA2870E

Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminals 41 and 42
while warming up A/T. Refer to AT-489, "Wiring Diagram — AT
— FTSP" .
Connector Terminal Temperature Voltage (Approx.)
0°C (32°F) 4.0V
20°C (68°F) 3.0V
F57 41 - 42 (ground)
80°C (176°F) 0.8V
100°C (212°F) 0.5V
3. Turn ignition switch “OFF”. SCIA2871E

4. Disconnect the TCM connector.

5. Check if there is continuity between the connector terminal and ground.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.

Revision: November 2006 AT-490 2006 Altima

 DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE
[RE5F22A]
2. CHECK FLUID TEMPERATURE SENSOR CIRCUIT A
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between terminals 41 and 42. B

Resistance
Connector Terminal Temperature
(Approx.)
AT
0°C (32°F) 9.8 kΩ
20°C (68°F) 4.2 kΩ
F57 41 - 42 (ground)
80°C (176°F) 0.54 kΩ D
100°C (212°F) 0.31 kΩ

4. Check if there is continuity between the connector terminal and

E
ground. SCIA2872E

OK or NG
OK >> GO TO 6.
F
NG >> GO TO 3.

3. CHECK TERMINAL CORD ASSEMBLY WITH A/T FLUID TEMPERATURE SENSOR

G
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 4 and 8. H

Connector Terminal Temperature Resistance (Approx.)

0°C (32°F) 9.8 kΩ I
20°C (68°F) 4.2 kΩ
F30 4-8
80°C (176°F) 0.54 kΩ
100°C (212°F) 0.31 kΩ J

4. Reinstall any part removed.

OK or NG
SCIA2873E K
OK >> GO TO 4.
NG >> GO TO 5.

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY L

Check the following.

● Open or short-circuit in the harness between TCM and terminal cord assembly. M
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-491 2006 Altima

 DTC P0711 FLUID TEMPERATURE SENSOR PERFORMANCE
[RE5F22A]
5. CHECK A/T FLUID TEMPERATURE SENSOR
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect A/T fluid temperature sensor.
3. Check resistance between terminals 4 and 8.
Connector Terminal) Temperature Resistance
10°C (50°F) 5.80 - 7.09kΩ
F30 4-8
110°C (230°F) 0.23 - 0.26kΩ
OK or NG
OK >> GO TO 6.
NG >> Repair or replace transmission wire. Refer to AT-629,
"Terminal Cord Assembly" .
WCIA0448E

6. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-488, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 7.

7. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009EB

A/T FLUID TEMPERATURE SENSOR

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect A/T fluid temperature sensor.
3. Check resistance between terminals 4 and 8.
Connector Terminal) Temperature Resistance
10°C (50°F) 5.80 - 7.09kΩ
F30 4-8
110°C 230(°F) 0.23 - 0.26kΩ

4. If NG, repair or replace transmission wire. Refer to AT-629, "Ter-

minal Cord Assembly" .

WCIA0448E

Revision: November 2006 AT-492 2006 Altima

 DTC P0717 TURBINE REVOLUTION SENSOR CIRCUIT
[RE5F22A]
DTC P0717 TURBINE REVOLUTION SENSOR CIRCUIT PFP:31935
A
Description ECS009EC

● The turbine revolution sensor detects forward clutch drum rpm

(revolutions per minute). It is located on the input side of the B
automatic transaxle. The revolution sensor is located on the out-
put side of the automatic transaxle. With the two sensors, input
and output rpms are accurately detected. The result is optimal
shift timing during deceleration and improved shifting. AT
● Hall IC is installed in turbine revolution sensor, it itself handles in
pulse of rectangular wave signal and transmits it to TCM due to
hall effect. TCM recognizes the pulse with input rpm speed. Size D
of output doesn't depend on a rotation number and is fixed.
SCIA2830E

E
On Board Diagnosis Logic ECS009ED

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “TURBINE SENSOR” with CONSULT-II or P0717 without CONSULT-II is F
detected under the following conditions.
– When signal from turbine revolution sensor does not input due to open, short, and so on.
– When unexpected signal input during running. G
Possible Cause ECS009EE

● Harness or connectors H
(The sensor circuit is open or shorted.)
● Turbine revolution sensor
DTC Confirmation Procedure ECS009EF I
CAUTION:
Always drive vehicle at a safe speed.
J
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated. K
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
L
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Start engine.
4. Drive vehicle and maintain the following conditions for at least 1 M
consecutive minute.
FLUID TEMP: More than 20°C (68°F)
VHCL/S SE-A/T: 70 km/h (43 MPH) or more
SLCT LVR POSI: “D” position
GEAR: Except 1st position
5. If DTC is detected, go to AT-495, "Diagnostic Procedure" . BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-493 2006 Altima

 DTC P0717 TURBINE REVOLUTION SENSOR CIRCUIT
[RE5F22A]
Wiring Diagram — AT — TRSC ECS009EG

WCWA0191E

Revision: November 2006 AT-494 2006 Altima

 DTC P0717 TURBINE REVOLUTION SENSOR CIRCUIT
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color

When turning ignition switch ON. Battery voltage B

Turbine revolution
23 G sensor power sup-
ply
When turning ignition switch OFF. 0V AT

Turbine revolution
D
30 R When moving at 20 km/h (12 MPH) in 1st gear. 371Hz
sensor

E
Diagnostic Procedure ECS009EH

1. CHECK TURBINE REVOLUTION SENSOR CIRCUIT

F
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II. G
3. Drive vehicle and read out the value of “TURBINE REV”.
Monitor item Condition Specification H
Approximately matches the
TURBINE REV During driving (lock-up ON)
engine speed.
I

SCIA2924E

K
Without CONSULT-II
1. Start the engine.
2. Check pulse between TCM connector terminals 23 and 30. L
Data
Connector Terminal Condition
(Approx.)
When moving at 20 km/h (12 M
F57 2 - 30 (ground) 371 Hz
MPH) in 1st gear.

OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

SCIA2925E

2. DETECT MALFUNCTIONING ITEM

Check the following.
● Open or short-circuit in the harness between TCM and turbine revolution sensor.
● Turbine revolution sensor. Refer to AT-496, "Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-495 2006 Altima

 DTC P0717 TURBINE REVOLUTION SENSOR CIRCUIT
[RE5F22A]
3. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-493, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009EI

TURBINE REVOLUTION SENSOR

1. Remove turbine revolution sensor.
2. Connect 12V power supply and 100 Ω resistance to the termi-
nal. (Do not mistake polarity)
3. Inspect the voltage of HIGH and LOW signal by shaking mag-
netic body from side to side at turbine revolution sensor tip [gap
is within 5 mm (0.20 in)].
CAUTION:
Make sure to shake direction from bolt hole to sensor-self
when shaking magnetic body. If not, voltage value cannot
change.
Signal Voltage (Approx.) SCIA2927E

HIGH 1.2 - 1.6V

LOW 0.4 - 0.8V
4. If NG, replace turbine revolution sensor.

Revision: November 2006 AT-496 2006 Altima

 DTC P0722 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) CIRCUIT
[RE5F22A]
DTC P0722 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) CIRCUIT
PFP:31935 A
Description ECS009EJ

● The revolution sensor detects the revolution of the idler gear

B
parking pawl lock gear and emits a pulse signal. The pulse sig-
nal is sent to the TCM which converts it into vehicle speed.
● Hall IC is installed in revolution sensor, it itself handles in pulse
of rectangular wave signal and transmits it to TCM due to hall AT
effect. TCM recognizes the pulse with vehicle speed. Size of
output doesn't depend on a rotation number and is fixed.
D

SCIA2830E
E
On Board Diagnosis Logic ECS009EK

● This is an OBD-II self-diagnostic item.

F
● Diagnostic trouble code “VHCL SPEED SEN-A/T” with CONSULT-II or P0722 without CONSULT-II is
detected under the following conditions.
– When signal from revolution sensor does not input due to open, short, and so on.
G
– When unexpected signal input during running.
Possible Cause ECS009EL

H
● Harness or connectors
(The sensor circuit is open or shorted.)
● Revolution sensor
I
DTC Confirmation Procedure ECS009EM

CAUTION:
● Always drive vehicle at a safe speed. J
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF” K
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II L
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
M
3. Start engine.
4. Drive vehicle and check for an increase of “VHCL/S SE-A/T”
value in response to “VHCL/S SE-MTR” value.
If the check result is NG, go to AT-499, "Diagnostic Procedure" .
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 2 consecutive min-
utes.
FLUID TEMP: More than 20°C (68°F) BCIA0030E
VHCL/S SE-A/T: 70 km/h (43 MPH) or more
SLCT LVR POSI: “D” position
If the check result is NG, go to AT-499, "Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-497 2006 Altima

 DTC P0722 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) CIRCUIT
[RE5F22A]
Wiring Diagram — AT — VSSATC ECS009EN

WCWA0192E

Revision: November 2006 AT-498 2006 Altima

 DTC P0722 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) CIRCUIT
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color

When turning ignition switch ON. Battery voltage B

Revolution sensor
22 L
power supply
When turning ignition switch OFF. 0V AT

D
29 B/W Revolution sensor When moving at 20 km/h (12 MPH) in 1st gear. 119Hz

E
Diagnostic Procedure ECS009EO

1. CHECK REVOLUTION SENSOR CIRCUIT

F
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II. G
3. Drive vehicle and read out the value of “VHCL/S SE-AT”.
Monitor item Condition Specification H
Approximately matches the
VHCL/S SE-AT During driving
speedometer reading.
I

SCIA2922E

K
Without CONSULT-II
1. Start the engine.
2. Check pulse between TCM connector terminals 22 and 29. L
Data
Connector Terminal Condition
(Approx.)
When moving at 20 km/h M
F57 22 - 29 (ground) 119 Hz
(12 MPH) in 1st gear.

OK or NG
OK >> GO TO 3.
NG >> GO TO 2.

SCIA2928E

2. DETECT MALFUNCTIONING ITEM

Check the following.
● Open or short-circuit in the harness between TCM and revolution sensor.
● Revolution sensor. Refer to AT-500, "Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-499 2006 Altima

 DTC P0722 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR) CIRCUIT
[RE5F22A]
3. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-497, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009EP

REVOLUTION SENSOR
1. Remove revolution sensor.
2. Connect 12V power supply and 100 Ω resistance to the termi-
nal. (Do not mistake polarity)
3. Inspect the voltage of HIGH and LOW signal by shaking mag-
netic body from side to side at revolution sensor tip [gap is within
5mm (0.20 in)].
CAUTION:
Make sure to shake direction from bolt hole to sensor-self
when shaking magnetic body. If not, voltage value cannot
change.
Signal Voltage (Approx.) SCIA2927E

HIGH 1.2 - 1.6V

LOW 0.4 - 0.8V
4. If NG, replace revolution sensor.

Revision: November 2006 AT-500 2006 Altima

 DTC P0726 ENGINE SPEED INPUT CIRCUIT PERFORMANCE
[RE5F22A]
DTC P0726 ENGINE SPEED INPUT CIRCUIT PERFORMANCE PFP:31036
A
Description ECS009EQ

The engine speed signal is sent from the ECM to the TCM.
B
On Board Diagnosis Logic ECS009ER

● This is not an OBD-II self-diagnostic item.

● Diagnostic trouble code “ENG SPD INP PERFOR” with CONSULT-II or 14th judgement flicker without AT
CONSULT-II is detected when malfunction is detected in engine speed signal, actual engine torque signal
or torque reduction signal that is output from ECM through CAN communication.
Possible Cause ECS009ES D
● Harness or connectors
(The signal circuit is open or shorted.)
● ECM E

DTC Confirmation Procedure ECS009ET

CAUTION: F
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF” G
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II H
1. Turn ignition switch “ON” and select “A/T” with “DATA MONI-
TOR” mode in CONSULT-II.
2. Start engine. I
3. Drive vehicle and maintain the following conditions for at least
10 consecutive seconds.
VHCL/S SE-A/T: 10 km/h (6 MPH) or more J
ACCELE ANGLE: More than 10 %
SLCT LVR POSI: “D” position
4. If DTC is detected, go to AT-501, "Diagnostic Procedure" . K
BCIA0030E

Diagnostic Procedure ECS009EU

L
1. CHECK DTC WITH ECM
With CONSULT-II
M
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “ENGINE” with “SELF-DIAG RESULTS” mode in CON-
SULT-II. Refer to AT-462, "CONSULT-II Function (TCM)" .
OK or NG
OK >> GO TO 2.
NG >> Check the DTC detected item, go to EC-614, "INDEX
FOR DTC" .
● If CAN communication line is detected, go to AT-471,
"DTC U1000 CAN COMMUNICATION LINE" .

BCIA0030E

Revision: November 2006 AT-501 2006 Altima

 DTC P0726 ENGINE SPEED INPUT CIRCUIT PERFORMANCE
[RE5F22A]
2. CHECK DTC WITH TCM
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. While monitoring “ENGINE SPEED”, check for engine speed
change corresponding to “ACCELE ANGLE”.
OK or NG
OK >> GO TO 3.
NG >> Check the ignition signal circuit.
● Refer to EC-1276, "IGNITION SIGNAL" .

SCIA2929E

3. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-501, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-502 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE5F22A]
DTC P0731 A/T 1ST GEAR FUNCTION PFP:31940
A
Description ECS009EV

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction. B
● This malfunction is detected when the A/T does not shift into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc. AT
Shift solenoid valve
Gear position
A B C D E
D
D ON (Closed) ON (Open) ON (Open) OFF (Open) OFF (Closed)
1st
M1 ON (Closed) ON (Open) ON (Open) OFF (Open) ON (Open)

On Board Diagnosis Logic ECS009EW

E

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “A/T 1ST GR FNCTN” with CONSULT-II or P0731 without CONSULT-II is
F
detected when A/T cannot be shifted to the 1st gear position even if electrical circuit is good.
Possible Cause ECS009EX

● Shift solenoid valve A G

(Off stick.)
● 2nd brake
● 2nd coast brake H
● One-way clutch No.1
● One-way clutch No.2
I
● Hydraulic control circuit
DTC Confirmation Procedure ECS009EY

J
CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
K
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated. L
WITH CONSULT-II
1. Start engine and select “A/T” with “DATA MONITOR” mode in
CONSULT-II. M
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F)
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to maintain the following conditions for at
least 12 consecutive seconds.
SLCT LVR POSI: “D” position
GEAR: 1st position
[Vehicle speed and accelerator angle: 1st gear position
retainable condition. (Refer to AT-702, "VEHICLE SPEED BCIA0030E

WHEN SHIFTING GEARS - 9J500 MODELS" .)]

Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to AT-505, "Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-503 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE5F22A]
Wiring Diagram — AT — 1STSIG ECS009EZ

WCWA0193E

Revision: November 2006 AT-504 2006 Altima

 DTC P0731 A/T 1ST GEAR FUNCTION
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve A operates.
Battery voltage
(When driving in 1st gear.)
Shift solenoid B
46 W/G
valve A
When shift solenoid valve A does not operate. 0V

AT
Diagnostic Procedure ECS009F0

1. CHECK SHIFT SOLENOID VALVE A CIRCUIT

D
Perform “Diagnostic Procedure” for DTC P0750. Refer to AT-539, "Diagnostic Procedure" .
OK or NG
OK >> GO TO 2. E
NG >> Repair or replace damaged parts.

2. CHECK MALFUNCTIONING ITEM F

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" .
G
3. Check the following item:
– 2nd brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" .
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch H
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
I
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 3. J
NG >> Repair or replace damaged parts.

3. CHECK DTC K
Perform “DTC Confirmation Procedure”. Refer to AT-503, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END L
NG >> Replace control valve assembly. Refer to AT-629, "Control Valve Assembly" .

Revision: November 2006 AT-505 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]
DTC P0732 A/T 2ND GEAR FUNCTION PFP:31940

Description ECS009F1

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction.
● This malfunction is detected when the A/T does not shift into second gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
Shift solenoid valve
Gear position
A B C D E
D OFF (Open) OFF (Closed) ON (Open) OFF (Open) OFF (Closed)
2nd
M2 OFF (Open) OFF (Closed) ON (Open) OFF (Open) OFF (Closed)

On Board Diagnosis Logic ECS009F2

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “A/T 2ND GR FNCTN” with CONSULT-II or P0732 without CONSULT-II is
detected when A/T cannot be shifted to the 2nd gear position even if electrical circuit is good.
Possible Cause ECS009F3

● Shift solenoid valve A

(On stick.)
● Shift solenoid valve B
(On stick.)
● Shift solenoid valve C
(Off stick.)
● Shift solenoid valve D
(On stick.)
● Pressure control solenoid valve A
(On stick.)
● Pressure control solenoid valve C
(On stick.)
● U/D brake
● 2nd coast brake
● 2nd brake
● One-way clutch No.1
● One-way clutch No.2
● B5 brake
● Hydraulic control circuit
DTC Confirmation Procedure ECS009F4

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-506 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]
WITH CONSULT-II
1. Start engine and select “A/T” with “DATA MONITOR” mode in A
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F) B
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to maintain the following conditions for at
least 12 consecutive seconds. AT
SLCT LVR POSI: “D” position
GEAR: 2nd position
[Vehicle speed and accelerator angle: 2nd gear position
retainable condition. (Refer to AT-702, "VEHICLE SPEED BCIA0030E
D
WHEN SHIFTING GEARS - 9J500 MODELS" .)]
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test. E
4. If DTC is detected, go to AT-510, "Diagnostic Procedure" .
WITH GST
F
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-507 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]
Wiring Diagram — AT — 2NDSIG ECS009F5

WCWA0194E

Revision: November 2006 AT-508 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]

AT

WCWA0195E

Revision: November 2006 AT-509 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve B operates.
Shift solenoid Battery voltage
25 G/R (When driving in 1st or 5th gear.)
valve B
When shift solenoid valve B does not operate. 0V
When shift solenoid valve D operates.
Shift solenoid Battery voltage
26 PU/W (When driving in 3rd, 4th or 5th gear.)
valve D
When shift solenoid valve D does not operate. 0V
Pressure control
When engine is running with idle speed and set-
28 W solenoid valve C 0V
ting selector lever to “P” position.
ground
Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.
When shift solenoid valve C operates.
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid
37 R/B
valve C
When shift solenoid valve C does not operate. 0V

Pressure control
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground
Pressure control When engine is running with idle speed and set-
45 OR 300Hz
solenoid valve C ting selector lever to “P” position.
When shift solenoid valve A operates.
Battery voltage
(When driving in 1st gear.)
Shift solenoid
46 W/G
valve A
When shift solenoid valve A does not operate. 0V

Diagnostic Procedure ECS009F6

1. CHECK EACH SHIFT SOLENOID VALVE CIRCUIT

Perform “Diagnostic Procedure” for the following DTCs.
● “DTC P0750 SHIFT SOLENOID VALVE A” (Refer to AT-539, "Diagnostic Procedure" .)
● “DTC P0755 SHIFT SOLENOID VALVE B” (Refer to AT-544, "Diagnostic Procedure" .)
● “DTC P0760 SHIFT SOLENOID VALVE C” (Refer to AT-549, "Diagnostic Procedure" .)
● “DTC P0765 SHIFT SOLENOID VALVE D” (Refer to AT-559, "Diagnostic Procedure" .)
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

2. CHECK EACH PRESSURE CONTROL SOLENOID VALVE CIRCUIT

Perform “Diagnostic Procedure” for the following DTCs.
● “DTC P0745 PRESSURE CONTROL SOLENOID VALVE A” (Refer to AT-534, "Diagnostic Procedure" .)
● “DTC P0795 PRESSURE CONTROL SOLENOID VALVE C” (Refer to AT-578, "Diagnostic Procedure" .)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-510 2006 Altima

 DTC P0732 A/T 2ND GEAR FUNCTION
[RE5F22A]
3. CHECK MALFUNCTIONING ITEM A
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following item: B
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" . AT
– 2nd brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
D
Hub & One-Way Clutch No.1" .
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" . E
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts. F
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-506, "DTC Confirmation Procedure" . G
OK or NG
OK >> INSPECTION END
NG >> Replace control valve assembly. Refer to AT-629, "Control Valve Assembly" . H

Revision: November 2006 AT-511 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]
DTC P0733 A/T 3RD GEAR FUNCTION PFP:31940

Description ECS009F7

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction.
● This malfunction is detected when the A/T does not shift into third gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
Shift solenoid valve
Gear position
A B C D E
D OFF (Open) OFF (Closed) ON (Open) ON (Closed) OFF (Closed)
3rd
M3 OFF (Open) OFF (Closed) ON (Open) ON (Closed) OFF (Closed)

On Board Diagnosis Logic ECS009F8

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “A/T 3RD GR FNCTN” with CONSULT-II or P0733 without CONSULT-II is
detected when A/T cannot be shifted to the 3rd gear position even if electrical circuit is good.
Possible Cause ECS009F9

● Shift solenoid valve A

(On stick.)
● Shift solenoid valve B
(On stick.)
● Shift solenoid valve C
(Off stick.)
● Shift solenoid valve D
(Off stick.)
● Pressure control solenoid valve A
(On stick.)
● B5 brake
● U/D clutch
● U/D brake
● Hydraulic control circuit
DTC Confirmation Procedure ECS009FA

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “A/T” with “DATA MONITOR” mode in
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F)
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to maintain the following conditions for at
least 10 consecutive seconds.
SLCT LVR POSI: “D” position
GEAR: 3rd position

BCIA0030E

Revision: November 2006 AT-512 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]
[Vehicle speed and accelerator angle: 3rd gear position retainable condition. (Refer to AT-702,
"VEHICLE SPEED WHEN SHIFTING GEARS - 9J500 MODELS" .)] A
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to AT-516, "Diagnostic Procedure" . B
WITH GST
Follow the procedure “With CONSULT-II”.
AT

Revision: November 2006 AT-513 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]
Wiring Diagram — AT — 3RDSIG ECS009FB

WCWA0196E

Revision: November 2006 AT-514 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]

AT

WCWA0197E

Revision: November 2006 AT-515 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve B operates.
Shift solenoid Battery voltage
25 G/R (When driving in 1st or 5th gear.)
valve B
When shift solenoid valve B does not operate. 0V
When shift solenoid valve D operates.
Shift solenoid Battery voltage
26 PU/W (When driving in 3rd, 4th or 5th gear.)
valve D
When shift solenoid valve D does not operate. 0V

Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.

When shift solenoid valve C operates.

Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid
37 R/B
valve C
When shift solenoid valve C does not operate. 0V

Pressure control
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground

When shift solenoid valve A operates.

Battery voltage
(When driving in 1st gear.)
Shift solenoid
46 W/G
valve A
When shift solenoid valve A does not operate. 0V

Diagnostic Procedure ECS009FC

1. CHECK EACH SHIFT SOLENOID VALVE CIRCUIT

Perform “Diagnostic Procedure” for the following DTCs.
● “DTC P0750 SHIFT SOLENOID VALVE A” (Refer to AT-539, "Diagnostic Procedure" .)
● “DTC P0755 SHIFT SOLENOID VALVE B” (Refer to AT-544, "Diagnostic Procedure" .)
● “DTC P0760 SHIFT SOLENOID VALVE C” (Refer to AT-549, "Diagnostic Procedure" .)
● “DTC P0765 SHIFT SOLENOID VALVE D” (Refer to AT-559, "Diagnostic Procedure" .)
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

2. CHECK PRESSURE CONTROL SOLENOID VALVE A CIRCUIT

Perform “Diagnostic Procedure” for DTC P0745. Refer to AT-534, "Diagnostic Procedure" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-516 2006 Altima

 DTC P0733 A/T 3RD GEAR FUNCTION
[RE5F22A]
3. CHECK MALFUNCTIONING ITEM A
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following item: B
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
– U/D clutch. Refer to AT-643, "DISASSEMBLY" .
AT
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 4. D
NG >> Repair or replace damaged parts.

4. CHECK DTC E
Perform “DTC Confirmation Procedure”. Refer to AT-512, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END F
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .

Revision: November 2006 AT-517 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE5F22A]
DTC P0734 A/T 4TH GEAR FUNCTION PFP:31940

Description ECS009FD

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction.
● This malfunction is detected when the A/T does not shift into fourth gear position as instructed by the
TCM. This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction
such as control valve sticking, improper solenoid valve operation, etc.
Shift solenoid valve
Gear position
A B C D E
D OFF (Open) OFF (Closed) OFF (Closed) ON (Closed) OFF (Closed)
4th
M4 OFF (Open) OFF (Closed) OFF (Closed) ON (Closed) OFF (Closed)

On Board Diagnosis Logic ECS009FE

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “A/T 4TH GR FNCTN” with CONSULT-II or P0734 without CONSULT-II is
detected when A/T cannot be shifted to the 4th gear position even if electrical circuit is good.
Possible Cause ECS009FF

● Shift solenoid valve A

(On stick.)
● Shift solenoid valve B
(On stick.)
● Shift solenoid valve C
(On stick.)
● Pressure control solenoid valve A
(On stick.)
● Forward and direct clutch assembly
● U/D clutch
● U/D brake
● 2nd coast brake
● One-way clutch No.1
● Hydraulic control circuit
DTC Confirmation Procedure ECS009FG

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “A/T” with “DATA MONITOR” mode in
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F)
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to maintain the following conditions for at
least 10 consecutive seconds.
SLCT LVR POSI: “D” position
GEAR: 4th position

BCIA0030E

Revision: November 2006 AT-518 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE5F22A]
[Vehicle speed and accelerator angle: 4th gear position retainable condition. (Refer to AT-702,
"VEHICLE SPEED WHEN SHIFTING GEARS - 9J500 MODELS" .)] A
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to AT-521, "Diagnostic Procedure" . B
WITH GST
Follow the procedure “With CONSULT-II”.
AT

Revision: November 2006 AT-519 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE5F22A]
Wiring Diagram — AT — 4THSIG ECS009FH

WCWA0198E

Revision: November 2006 AT-520 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve B operates.
Battery voltage
(When driving in 1st or 5th gear.)
Shift solenoid B
25 G/R
valve B
When shift solenoid valve B does not operate. 0V

AT
Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.
D
When shift solenoid valve C operates.
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid
37 R/B
valve C E
When shift solenoid valve C does not operate. 0V

Pressure control F
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground

When shift solenoid valve A operates.

Battery voltage G
(When driving in 1st gear.)
Shift solenoid
46 W/G
valve A
When shift solenoid valve A does not operate. 0V
H

Diagnostic Procedure ECS009FI

1. CHECK EACH SHIFT SOLENOID VALVE CIRCUIT I

Perform “Diagnostic Procedure” for the following DTCs.

● “DTC P0750 SHIFT SOLENOID VALVE A” (Refer to AT-539, "Diagnostic Procedure" .) J
● “DTC P0755 SHIFT SOLENOID VALVE B” (Refer to AT-544, "Diagnostic Procedure" .)
● “DTC P0760 SHIFT SOLENOID VALVE C” (Refer to AT-549, "Diagnostic Procedure" .)
OK or NG K
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
L
2. CHECK PRESSURE CONTROL SOLENOID VALVE A CIRCUIT
Perform “Diagnostic Procedure” for DTC P0745. Refer to AT-534, "Diagnostic Procedure" .
M
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-521 2006 Altima

 DTC P0734 A/T 4TH GEAR FUNCTION
[RE5F22A]
3. CHECK MALFUNCTIONING ITEM
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following item:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
– U/D clutch. Refer to AT-643, "DISASSEMBLY" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-518, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .

Revision: November 2006 AT-522 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]
DTC P0735 A/T 5TH GEAR FUNCTION PFP:31940
A
Description ECS009FJ

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction. B
● This malfunction is detected when the A/T does not shift into fifth gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc. AT
Shift solenoid valve
Gear position
A B C D E
D
D OFF (Open) ON (Open) OFF (Closed) ON (Closed) OFF (Closed)
5th
M5 OFF (Open) ON (Open) OFF (Closed) ON (Closed) OFF (Closed)

On Board Diagnosis Logic ECS009FK

E

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “A/T 5TH GR FNCTN” with CONSULT-II or P0735 without CONSULT-II is
F
detected when A/T cannot be shifted to the 5th gear position even if electrical circuit is good.
Possible Cause ECS009FL

● Shift solenoid valve B G

(Off stick.)
● Shift solenoid valve C
(On stick.) H
● Shift solenoid valve E
(On stick.)
● Pressure control solenoid valve A I
(On stick.)
● Pressure control solenoid valve B
(On stick.) J
● Forward and direct clutch assembly
● Direct clutch
● 2no coast brake K
● One-way clutch No.1
● Hydraulic control circuit
L
DTC Confirmation Procedure ECS009FM

CAUTION:
● Always drive vehicle at a safe speed. M
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

Revision: November 2006 AT-523 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F)
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to maintain the following conditions for at
least 12 consecutive seconds.
SLCT LVR POSI: “D” position
GEAR: 5th position
[Vehicle speed and accelerator angle: 5th gear position
retainable condition. (Refer to AT-702, "VEHICLE SPEED BCIA0030E

WHEN SHIFTING GEARS - 9J500 MODELS" .)]

Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to AT-527, "Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-524 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]
Wiring Diagram — AT — 5THSIG ECS009FN

AT

WCWA0199E

Revision: November 2006 AT-525 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]

WCWA0224E

Revision: November 2006 AT-526 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color

Pressure control
When engine is running with idle speed and set-
21 G/B solenoid valve B 0V B
ting selector lever to “P” position.
ground

When shift solenoid valve B operates.

Battery voltage
(When driving in 1st or 5th gear.) AT
Shift solenoid
25 G/R
valve B
When shift solenoid valve B does not operate. 0V
D
Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.
Pressure control When engine is running with idle speed and set- E
36 OR/B 300Hz
solenoid valve B ting selector lever to “P” position.
When shift solenoid valve C operates.
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid F
37 R/B
valve C
When shift solenoid valve C does not operate. 0V

G
Pressure control
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground
H
When shift solenoid valve E operates.
Battery voltage
(When driving in reverse gear.)
Shift solenoid
47 BR/Y
valve E I
When shift solenoid valve E does not operate. 0V

Diagnostic Procedure ECS009FO

J
1. CHECK EACH SHIFT SOLENOID VALVE CIRCUIT
Perform “Diagnostic Procedure” for the following DTCs. K
● “DTC P0755 SHIFT SOLENOID VALVE B” (Refer to AT-544, "Diagnostic Procedure" .)
● “DTC P0760 SHIFT SOLENOID VALVE C” (Refer to AT-549, "Diagnostic Procedure" .)
● “DTC P0770 SHIFT SOLENOID VALVE E” (Refer to AT-564, "Diagnostic Procedure" .) L
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts. M

2. CHECK EACH PRESSURE CONTROL SOLENOID VALVE CIRCUIT

Perform “Diagnostic Procedure” for the following DTCs.
● “DTC P0745 PRESSURE CONTROL SOLENOID VALVE A” (Refer to AT-534, "Diagnostic Procedure" .)
● “DTC P0775 PRESSURE CONTROL SOLENOID VALVE B” (Refer to AT-569, "Diagnostic Procedure" .)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-527 2006 Altima

 DTC P0735 A/T 5TH GEAR FUNCTION
[RE5F22A]
3. CHECK MALFUNCTIONING ITEM
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following item:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
– 2nd brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-523, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .

Revision: November 2006 AT-528 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE5F22A]
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) PFP:31940
A
Description ECS009FP

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction. B
● This malfunction is detected when the torque converter clutch does not lock up as instructed by the TCM.
This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, malfunctioning oil pump or torque converter AT
clutch, etc.
On Board Diagnosis Logic ECS009FQ

● This is an OBD-II self-diagnostic item. D

● Diagnostic trouble code “A/T TCC S/V FNCTN” with CONSULT-II or P0744 without CONSULT-II is
detected when A/T cannot perform lock-up even if electrical circuit is good.
E
Possible Cause ECS009FR

● Shift solenoid valve D

(Off stick.) F
● Pressure control solenoid valve C
(Off stick.)
● Torque converter clutch G
● Hydraulic control circuit
DTC Confirmation Procedure ECS009FS
H
CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer. I
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. J
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with K
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 20°C (68°F) L
If out of range, drive the vehicle to warm up the fluid.
3. Accelerate vehicle to more than 100 km/h (62 MPH) and main-
tain the following conditions for at least 12 consecutive seconds.
M
SLCT LVR POSI: “D” position
GEAR: 5th position
SLIP REV: Less than 100 rpm
ACCELE ANGLE: More than 5 % BCIA0030E

LOCK-UP: ON (Refer to AT-703, "VEHICLE SPEED WHEN

PERFORMING AND RELEASING COMPLETE LOCK-UP - 9J500 MODELS" .)
[Vehicle speed: Constant speed of more than 100 km/h (62 MPH).]
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
4. If DTC is detected, go to AT-531, "Diagnostic Procedure" .
WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-529 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE5F22A]
Wiring Diagram — AT — TCCSIG ECS009FT

WCWA0201E

Revision: November 2006 AT-530 2006 Altima

 DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
Pressure control
When engine is running with idle speed and set-
28 W solenoid valve C 0V
ting selector lever to “P” position. B
ground
Pressure control When engine is running with idle speed and set-
45 OR 300Hz
solenoid valve C ting selector lever to “P” position.
AT
Diagnostic Procedure ECS009FU

1. CHECK SHIFT SOLENOID VALVE D CIRCUIT

D
Perform “Diagnostic Procedure” for DTC P0765. Refer to AT-559, "Diagnostic Procedure" .
OK or NG
OK >> GO TO 2. E
NG >> Repair or replace damaged parts.

2. CHECK PRESSURE CONTROL SOLENOID VALVE C CIRCUIT F

Perform “Diagnostic Procedure” for DTC P0795. Refer to AT-578, "Diagnostic Procedure" .
OK or NG
G
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK MALFUNCTIONING ITEM H

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .

2. Disassembly A/T. Refer to AT-643, "DISASSEMBLY" . I
3. Check the following item:
– Torque converter clutch. Refer to AT-643, "DISASSEMBLY" .
OK or NG J
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
K
4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-529, "DTC Confirmation Procedure" .
L
OK or NG
OK >> INSPECTION END
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .
M

Revision: November 2006 AT-531 2006 Altima

 DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
[RE5F22A]
DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
PFP:31940

Description ECS009FV

● The pressure control solenoid valve A is normally high, 3-port

linear pressure control solenoid.
● The pressure control solenoid valve A regulates the oil pump
discharge pressure to suit the driving condition in response to a
signal sent from the TCM.

SCIA2831E

On Board Diagnosis Logic ECS009FW

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “PC SOL A(L/PRESS)” with CONSULT-II or P0745 without CONSULT-II is
detected under the following conditions.
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
Possible Cause ECS009FX

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Pressure control solenoid valve A
DTC Confirmation Procedure ECS009FY

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Run engine for at least 13 consecutive seconds at idle speed.
5. If DTC is detected, go to AT-534, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-532 2006 Altima

 DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
[RE5F22A]
Wiring Diagram — AT — PC/A ECS009FZ

AT

WCWA0202E

Revision: November 2006 AT-533 2006 Altima

 DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.
Pressure control
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground

Diagnostic Procedure ECS009G0

1. CHECK PRESSURE CONTROL SOLENOID VALVE A SIGNAL

With CONSULT-II
1. After warming up the engine and transaxle, turn ignition switch “OFF”.
2. Turn ignition switch “ON”. (Do not start engine.)
3. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
4. Read out the value of “PC SOL A OUT” and “PC SOL A MON”.
Display value
Monitor item Condition
(Approx.)
When releasing accelerator pedal with set-
1.00 A
● PC SOL A OUT ting selector lever to “P” position.
● PC SOL A MON When depressing accelerator pedal fully set-
0.32 A
ting selector lever to “P” position.

SCIA2907E

Without CONSULT-II
1. Start the engine.
2. Check pulse between TCM connector terminals 35 and 40.
Data
Connector Terminal Condition
(Approx.)
When engine is running with idle
F57 35 - 40 speed and setting selector lever to 300 Hz
“P” position.
OK or NG
OK >> GO TO 7.
NG >> GO TO 2. SCIA2908E

2. CHECK PRESSURE CONTROL SOLENOID VALVE A CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals 35 and 40.
Resistance
Connector Terminal Condition
(Approx.)
F57 35 - 40 Temperature: 20°C (68°F) 5.0 - 5.6 Ω

OK or NG
OK >> GO TO 7.
NG >> GO TO 3.

SCIA2909E

Revision: November 2006 AT-534 2006 Altima

 DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH PRESSURE CONTROL SOLENOID VALVE A A
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 3 and 6. B

Connector Terminal Condition Resistance (Approx.)

F62 3-6 Temperature: 20°C (68°F) 5.0 - 5.6 Ω AT
OK or NG
OK >> GO TO 4.
NG >> GO TO 5. D

E
SCIA2910E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

F
Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG G
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
H
5. CHECK PRESSURE CONTROL SOLENOID VALVE A
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve A harness connector. I
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.) J
F105 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
K
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
L

SCIA4326E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND PRESSURE CONTROL SOLE- M
NOID VALVE A
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and pressure control solenoid valve
A.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-532, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-535 2006 Altima

 DTC P0745 PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE)
[RE5F22A]
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009G1

PRESSURE CONTROL SOLENOID VALVE A

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve A harness connector.
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
F105 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4326E

Revision: November 2006 AT-536 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE5F22A]
DTC P0750 SHIFT SOLENOID VALVE A PFP:31940
A
Description ECS009G2

● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts B
gear positions.
● The shift solenoid valve A is a normally open, ON-OFF type solenoid.
Gear position D1 , M 1 D2 , M 2 D3 , M3 D4 , M 4 D5 , M5 Reverse AT
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) OFF (Open) OFF (Open) OFF (Open)

On Board Diagnosis Logic ECS009G3 D

● This is an OBD-II self-diagnostic item.
● Diagnostic trouble code “SHIFT SOL A” with CONSULT-II or P0750 without CONSULT-II is detected
under the following conditions. E
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
F
Possible Cause ECS009G4

● Harness or connectors
(The solenoid circuit is open or shorted.) G
● Shift solenoid valve A
DTC Confirmation Procedure ECS009G5
H
CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer. I
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. J
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) K
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
L
4. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 1st Þ 2nd position
5. If DTC is detected, go to AT-539, "Diagnostic Procedure" . M

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-537 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE5F22A]
Wiring Diagram — AT — SSV/A ECS009G6

WCWA0203E

Revision: November 2006 AT-538 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve A operates.
Battery voltage
(When driving in 1st gear.)
Shift solenoid B
46 W/G
valve A
When shift solenoid valve A does not operate. 0V

AT
Diagnostic Procedure ECS009G7

1. CHECK SHIFT SOLENOID VALVE A SIGNAL

D
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II. E
3. Drive vehicle and read out the value of “SFT SOL A OUT” and
“SFT SOL A MON”.
F
Monitor item Condition Indication
When shift solenoid valve A operates.
● SFT SOL A OUT ON
(When driving in 1st gear.)
● SFT SOL A MON
G
When shift solenoid valve A does not operate. OFF

H
SCIA2874E

Without CONSULT-II I
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
J
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve A K
Battery
operates.
voltage
F57 46 - Ground (When driving in 1st gear.)
When shift solenoid valve A L
0V
does not operate.
OK or NG
OK >> GO TO 7. SCIA2875E
M
NG >> GO TO 2.

2. CHECK SHIFT SOLENOID VALVE A CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 46 and
ground.
Resistance
Connector Terminal Condition
(Approx.)
F57 46 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
SCIA2877E

Revision: November 2006 AT-539 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE A
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 2 and ground.
Connector Terminal Condition Resistance (Approx.)
F30 2 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

WCIA0449E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK SHIFT SOLENOID VALVE A

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve A harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F100 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4334E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE A
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve A.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-537, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-540 2006 Altima

 DTC P0750 SHIFT SOLENOID VALVE A
[RE5F22A]
8. CHECK TCM A
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG B
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
AT
Component Inspection ECS009G8

SHIFT SOLENOID VALVE A

1. Remove side cover. Refer to AT-629, "Side cover" . D
2. Disconnect shift solenoid valve A harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
E

F100 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω

4. If NG, replace the control valve assembly. Refer to AT-629, F
"Control Valve Assembly" .

SCIA4334E

Revision: November 2006 AT-541 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE5F22A]
DTC P0755 SHIFT SOLENOID VALVE B PFP:31940

Description ECS009G9

● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts
gear positions.
● The shift solenoid valve B is a normally closed, ON-OFF type solenoid.
Gear position D1 , M 1 D2 , M 2 D3 , M 3 D4 , M4 D5 , M 5 Reverse
Shift solenoid valve B ON (Open) OFF (Closed) OFF (Closed) OFF (Closed) ON (Open) OFF (Closed)

On Board Diagnosis Logic ECS009GA

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “SHIFT SOL B” with CONSULT-II or P0755 without CONSULT-II is detected
under the following conditions.
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
Possible Cause ECS009GB

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Shift solenoid valve B
DTC Confirmation Procedure ECS009GC

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 1st Þ 2nd and 4th Þ 5th position
5. If DTC is detected, go to AT-544, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-542 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE5F22A]
Wiring Diagram — AT — SSV/B ECS009GD

AT

WCWA0204E

Revision: November 2006 AT-543 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve B operates.
Battery voltage
(When driving in 1st or 5th gear.)
Shift solenoid
25 G/R
valve B
When shift solenoid valve B does not operate. 0V

Diagnostic Procedure ECS009GE

1. CHECK SHIFT SOLENOID VALVE B SIGNAL

With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Drive vehicle and read out the value of “SFT SOL B OUT” and
“SFT SOL B MON”.
Monitor item Condition Indication
When shift solenoid valve B operates.
● SFT SOL B OUT ON
(When driving in 1st or 5th gear.)
● SFT SOL B MON
When shift solenoid valve B does not operate. OFF

SCIA2879E

Without CONSULT-II
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve B
Battery
operates.
voltage
F57 25 - Ground (When driving in 1st or 5th gear.)
When shift solenoid valve B does
0V
not operate.
OK or NG
OK >> GO TO 7. SCIA2880E

NG >> GO TO 2.

2. CHECK SHIFT SOLENOID VALVE B CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 25 and
ground.
Resistance
Connector Terminal Condition
(Approx.)
F57 25 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
SCIA2881E

Revision: November 2006 AT-544 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE B A
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 1 and ground. B

Connector Terminal Condition Resistance (Approx.)

F62 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω AT
OK or NG
OK >> GO TO 4.
NG >> GO TO 5. D

E
WCIA0450E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

F
Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG G
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
H
5. CHECK SHIFT SOLENOID VALVE B
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve B harness connector. I
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.) J
F101 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
K
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
L

SCIA4335E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE B M

Check the following.

● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve B.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-542, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-545 2006 Altima

 DTC P0755 SHIFT SOLENOID VALVE B
[RE5F22A]
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009GF

SHIFT SOLENOID VALVE B

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve B harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F101 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4335E

Revision: November 2006 AT-546 2006 Altima

 DTC P0760 SHIFT SOLENOID VALVE C
[RE5F22A]
DTC P0760 SHIFT SOLENOID VALVE C PFP:31940
A
Description ECS009GG

● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts B
gear positions.
● The shift solenoid valve C is a normally closed, ON-OFF type solenoid.
Gear position D1 , M 1 D2 , M 2 D3 , M3 D4 , M 4 D5 , M5 Reverse AT
Shift solenoid valve C ON (Open) ON (Open) ON (Open) OFF (Closed) OFF (Closed) ON (Open)

On Board Diagnosis Logic ECS009GH D

● This is an OBD-II self-diagnostic item.
● Diagnostic trouble code “SHIFT SOL C” with CONSULT-II or P0760 without CONSULT-II is detected
under the following conditions. E
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
F
Possible Cause ECS009GI

● Harness or connectors
(The solenoid circuit is open or shorted.) G
● Shift solenoid valve C
DTC Confirmation Procedure ECS009GJ
H
CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer. I
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. J
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) K
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
L
4. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 3rd Þ 4th position
5. If DTC is detected, go to AT-549, "Diagnostic Procedure" . M

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-547 2006 Altima

 DTC P0760 SHIFT SOLENOID VALVE C
[RE5F22A]
Wiring Diagram — AT — SSV/C ECS009GK

WCWA0205E

Revision: November 2006 AT-548 2006 Altima

 DTC P0760 SHIFT SOLENOID VALVE C
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve C operates.
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid B
37 R/B
valve C
When shift solenoid valve C does not operate. 0V

AT
Diagnostic Procedure ECS009GL

1. CHECK SHIFT SOLENOID VALVE C SIGNAL

D
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II. E
3. Drive vehicle and read out the value of “SFT SOL C OUT” and
“SFT SOL C MON”.
F
Monitor item Condition Indication
When shift solenoid valve C operates.
● SFT SOL C OUT ON
(When driving in 1st, 2nd, 3rd or reverse gear.)
● SFT SOL C MON
G
When shift solenoid valve C does not operate. OFF

H
SCIA2883E

Without CONSULT-II I
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
J
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve C K
operates. Battery
(When driving in 1st, 2nd, 3rd voltage
F57 37 - Ground or reverse gear.)
L
When shift solenoid valve C
0V
does not operate.
OK or NG SCIA2884E
M
OK >> GO TO 7.
NG >> GO TO 2.

Revision: November 2006 AT-549 2006 Altima

 DTC P0760 SHIFT SOLENOID VALVE C
[RE5F22A]
2. CHECK SHIFT SOLENOID VALVE C CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 37 and
ground.
Resistance
Connector Terminal Condition
(Approx.)
F57 37 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
SCIA2885E

3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE C

1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 4 and ground.
Connector Terminal Condition Resistance (Approx.)
F62 4 - Ground Temperature: 20°C (68°F) 11 - 16 Ω

OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

WCIA0451E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK SHIFT SOLENOID VALVE C

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve C harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F102 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4338E

Revision: November 2006 AT-550 2006 Altima

 DTC P0760 SHIFT SOLENOID VALVE C
[RE5F22A]
6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE C A
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve C.
OK or NG B
OK >> GO TO 7.
NG >> Repair or replace transmission wire.
AT
7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-547, "DTC Confirmation Procedure" .
D
OK or NG
OK >> INSPECTION END
NG >> GO TO 8. E
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . F
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END G
NG >> Repair or replace damaged parts.
Component Inspection ECS009GM
H
SHIFT SOLENOID VALVE C
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve C harness connector. I
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
J
F102 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
K

L
SCIA4338E

Revision: November 2006 AT-551 2006 Altima

 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON
[RE5F22A]
DTC P0762 SHIFT SOLENOID VALVE C STUCK ON PFP:31940

Description ECS009GN

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction.
● This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts
gear positions.
● The shift solenoid valve C is a normally closed, ON-OFF type solenoid.
Gear position D1 , M 1 D2 , M 2 D3 , M 3 D4 , M4 D5 , M 5 Reverse
Shift solenoid valve C ON (Open) ON (Open) ON (Open) OFF (Closed) OFF (Closed) ON (Open)

On Board Diagnosis Logic ECS009GO

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “SFT SOL C STUCK ON” with CONSULT-II or P0762 without CONSULT-II is
detected when condition of shift solenoid valve C is different from monitor value, and relation between
gear position and actual gear ratio is irregular.
Possible Cause ECS009GP

● Shift solenoid valve C

(On stick.)
● Hydraulic control circuit
DTC Confirmation Procedure ECS009GQ

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 3rd Þ 4th position
ACCELE ANGLE: More than 10 %
5. If DTC is detected, go to AT-554, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-552 2006 Altima

 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON
[RE5F22A]
Wiring Diagram — AT — SSV/CS ECS009GR

AT

WCWA0206E

Revision: November 2006 AT-553 2006 Altima

 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve C operates.
Battery voltage
(When driving in 1st, 2nd, 3rd or reverse gear.)
Shift solenoid
37 R/B
valve C
When shift solenoid valve C does not operate. 0V

Diagnostic Procedure ECS009GS

1. CHECK SHIFT SOLENOID VALVE C SIGNAL

With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Drive vehicle and read out the value of “SFT SOL C OUT” and
“SFT SOL C MON”.
Monitor item Condition Indication
When shift solenoid valve C operates.
● SFT SOL C OUT ON
(When driving in 1st, 2nd, 3rd or reverse gear.)
● SFT SOL C MON
When shift solenoid valve C does not operate. OFF

SCIA2883E

Without CONSULT-II
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve C
operates. Battery
(When driving in 1st, 2nd, 3rd or voltage
F57 37 - Ground reverse gear.)
When shift solenoid valve C
0V
does not operate.
OK or NG SCIA2884E

OK >> GO TO 7.
NG >> GO TO 2.

Revision: November 2006 AT-554 2006 Altima

 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON
[RE5F22A]
2. CHECK SHIFT SOLENOID VALVE C CIRCUIT A
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 37 and B
ground.
Resistance
Connector Terminal Condition AT
(Approx.)
F57 37 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG D
OK >> GO TO 7.
NG >> GO TO 3.
E
SCIA2885E

3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE C

F
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 4 and ground. G
Connector Terminal Condition Resistance (Approx.)
F62 4 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
H
OK or NG
OK >> GO TO 4.
NG >> GO TO 5. I

WCIA0451E J

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following. K
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
L
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK SHIFT SOLENOID VALVE C M

1. Remove side cover. Refer to AT-629, "Side cover" .

2. Disconnect shift solenoid valve C harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F102 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4338E

Revision: November 2006 AT-555 2006 Altima

 DTC P0762 SHIFT SOLENOID VALVE C STUCK ON
[RE5F22A]
6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE C
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve C.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

8. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-552, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .
Component Inspection ECS009GT

SHIFT SOLENOID VALVE C

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve C harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F102 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4338E

Revision: November 2006 AT-556 2006 Altima

 DTC P0765 SHIFT SOLENOID VALVE D
[RE5F22A]
DTC P0765 SHIFT SOLENOID VALVE D PFP:31940
A
Description ECS009GU

● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts B
gear positions.
● The shift solenoid valve D is a normally open, ON-OFF type solenoid.
Gear position D1 , M 1 D2 , M 2 D3 , M3 D4 , M 4 D5 , M5 Reverse AT
Shift solenoid valve D OFF (Open) OFF (Open) ON (Closed) ON (Closed) ON (Closed) OFF (Open)

On Board Diagnosis Logic ECS009GV D

● This is an OBD-II self-diagnostic item.
● Diagnostic trouble code “SHIFT SOL D” with CONSULT-II or P0765 without CONSULT-II is detected
under the following conditions. E
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
F
Possible Cause ECS009GW

● Harness or connectors
(The solenoid circuit is open or shorted.) G
● Shift solenoid valve D
DTC Confirmation Procedure ECS009GX
H
CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer. I
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. J
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) K
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
L
4. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 2nd Þ 3rd position
5. If DTC is detected, go to AT-559, "Diagnostic Procedure" . M

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-557 2006 Altima

 DTC P0765 SHIFT SOLENOID VALVE D
[RE5F22A]
Wiring Diagram — AT — SSV/D ECS009GY

WCWA0207E

Revision: November 2006 AT-558 2006 Altima

 DTC P0765 SHIFT SOLENOID VALVE D
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve D operates.
Battery voltage
(When driving in 3rd, 4th or 5th gear.)
PU/ Shift solenoid B
26
W valve D
When shift solenoid valve D does not operate. 0V

AT
Diagnostic Procedure ECS009GZ

1. CHECK SHIFT SOLENOID VALVE D SIGNAL

D
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II. E
3. Drive vehicle and read out the value of “SFT SOL D OUT” and
“SFT SOL D MON”.
F
Monitor item Condition Indication
When shift solenoid valve D operates.
● SFT SOL D OUT ON
(When driving in 3rd, 4th or 5th gear.)
● SFT SOL D MON
G
When shift solenoid valve D does not operate. OFF

H
SCIA2888E

Without CONSULT-II I
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
J
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve D K
operates. Battery
(When driving in 3rd, 4th or 5th voltage
F57 26 - Ground gear.)
L
When shift solenoid valve D
0V
does not operate.
OK or NG SCIA2889E
M
OK >> GO TO 7.
NG >> GO TO 2.

Revision: November 2006 AT-559 2006 Altima

 DTC P0765 SHIFT SOLENOID VALVE D
[RE5F22A]
2. CHECK SHIFT SOLENOID VALVE D CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 26 and
ground.
Resistance
Connector Terminal Condition
(Approx.)
F57 26 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
SCIA2890E

3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE D

1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F30 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω

OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

WCIA0453E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK SHIFT SOLENOID VALVE D

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve D harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F103 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4339E

Revision: November 2006 AT-560 2006 Altima

 DTC P0765 SHIFT SOLENOID VALVE D
[RE5F22A]
6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE D A
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve D.
OK or NG B
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .
AT
7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-557, "DTC Confirmation Procedure" .
D
OK or NG
OK >> INSPECTION END
NG >> GO TO 8. E
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . F
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END G
NG >> Repair or replace damaged parts.
Component Inspection ECS009H0
H
SHIFT SOLENOID VALVE D
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve D harness connector. I
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
J
F103 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
K

L
SCIA4339E

Revision: November 2006 AT-561 2006 Altima

 DTC P0770 SHIFT SOLENOID VALVE E
[RE5F22A]
DTC P0770 SHIFT SOLENOID VALVE E PFP:31940

Description ECS009H1

● Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON
and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts
gear positions.
● The shift solenoid valve E is a normally closed, ON-OFF type solenoid.
Gear position D1 M1 D 2 , M2 D3 , M3 D4 , M 4 D5 , M 5 Reverse
OFF OFF OFF OFF OFF
Shift solenoid valve E ON (Open) ON (Open)
(Closed) (Closed) (Closed) (Closed) (Closed)
NOTE:
The condition of shift solenoid valve E is ON (Open) with shifting D2 ⇔ D3 and D3 ⇔ D4 .

On Board Diagnosis Logic ECS009H2

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “SHIFT SOL E” with CONSULT-II or P0770 without CONSULT-II is detected
under the following conditions.
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
Possible Cause ECS009H3

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Shift solenoid valve E
DTC Confirmation Procedure ECS009H4

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Move selector lever between “N” and “R”.
SLCT LVR POSI: “N” ⇔ “R” position
5. If DTC is detected, go to AT-564, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-562 2006 Altima

 DTC P0770 SHIFT SOLENOID VALVE E
[RE5F22A]
Wiring Diagram — AT — SSV/E ECS009H5

AT

WCWA0208E

Revision: November 2006 AT-563 2006 Altima

 DTC P0770 SHIFT SOLENOID VALVE E
[RE5F22A]
TCM terminal and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
When shift solenoid valve E operates.
Battery voltage
(When driving in reverse gear.)
Shift solenoid
47 BR/Y
valve E
When shift solenoid valve E does not operate. 0V

Diagnostic Procedure ECS009H6

1. CHECK SHIFT SOLENOID VALVE E SIGNAL

With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Drive vehicle and read out the value of “SFT SOL E OUT” and
“SFT SOL E MON”.
Monitor item Condition Indication
When shift solenoid valve E operates.
● SFT SOL E OUT ON
(When driving in reverse gear.)
● SFT SOL E MON
When shift solenoid valve E does not operate. OFF

SCIA2895E

Without CONSULT-II
1. Drive vehicle.
2. Check voltage between TCM connector terminal and ground.
Voltage
Connector Terminal Condition
(Approx.)
When shift solenoid valve E
Battery
operates.
voltage
F57 47 - Ground (When driving in reverse gear.)
When shift solenoid valve E
0V
does not operate.
OK or NG
OK >> GO TO 7. SCIA2896E

NG >> GO TO 2.

2. CHECK SHIFT SOLENOID VALVE E CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminal 47 and
ground.
Resistance
Connector Terminal Condition
(Approx.)
F57 47 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
SCIA2897E

Revision: November 2006 AT-564 2006 Altima

 DTC P0770 SHIFT SOLENOID VALVE E
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH SHIFT SOLENOID VALVE E A
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminal 5 and ground. B

Connector Terminal Condition Resistance (Approx.)

F30 5 - Ground Temperature: 20°C (68°F) 11 - 16 Ω AT
OK or NG
OK >> GO TO 4.
NG >> GO TO 5. D

E
WCIA0452E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

F
Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG G
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
H
5. CHECK SHIFT SOLENOID VALVE E
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve E harness connector. I
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.) J
F104 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
OK or NG
K
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
L

SCIA4340E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND SHIFT SOLENOID VALVE E M

Check the following.

● Open or short-circuit in the harness between terminal cord assembly and shift solenoid valve E.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-562, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-565 2006 Altima

 DTC P0770 SHIFT SOLENOID VALVE E
[RE5F22A]
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009H7

SHIFT SOLENOID VALVE E

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect shift solenoid valve E harness connector.
3. Check resistance between terminal 1 and ground.
Connector Terminal Condition Resistance (Approx.)
F104 1 - Ground Temperature: 20°C (68°F) 11 - 16 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4340E

Revision: November 2006 AT-566 2006 Altima

 DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
[RE5F22A]
DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
PFP:31940 A
Description ECS009H8

● The pressure control solenoid valve B is normally high, 3-port

B
linear pressure control solenoid.
● The pressure control solenoid valve B controls linear shift pres-
sure by control signal from TCM and controls 2nd coast brake
directly under 2nd, 3rd, 4th and direct clutch directly under 5th AT
and reverse.

SCIA2831E
E
On Board Diagnosis Logic ECS009H9

● This is an OBD-II self-diagnostic item.

F
● Diagnostic trouble code “PC SOL B(SFT/PRS)” with CONSULT-II or P0775 without CONSULT-II is
detected under the following conditions.
– When normal voltage is not applied to solenoid due to open, short, and so on.
G
– When TCM detects as irregular by comparing target value with monitor value.
Possible Cause ECS009HA

H
● Harness or connectors
(The solenoid circuit is open or shorted.)
● Pressure control solenoid valve B
I
DTC Confirmation Procedure ECS009HB

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF” J
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II K
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine. L
4. Run engine for at least 13 consecutive seconds at idle speed.
5. If DTC is detected, go to AT-569, "Diagnostic Procedure" .
M

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-567 2006 Altima

 DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
[RE5F22A]
Wiring Diagram — AT — PC/B ECS009HC

WCWA0209E

Revision: November 2006 AT-568 2006 Altima

 DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
Pressure control
When engine is running with idle speed and set-
21 G/B solenoid valve B 0V
ting selector lever to “P” position. B
ground
Pressure control When engine is running with idle speed and set-
36 OR/B 300Hz
solenoid valve B ting selector lever to “P” position.
AT
Diagnostic Procedure ECS009HD

1. CHECK PRESSURE CONTROL SOLENOID VALVE B SIGNAL

D
With CONSULT-II
1. After warming up the engine and transaxle, turn ignition switch “OFF”.
2. Turn ignition switch “ON”. (Do not start engine.) E
3. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
4. Read out the value of “PC SOL B OUT” and “PC SOL B MON”.
F
Display value
Monitor item Condition
(Approx.)
● PC SOL B OUT Selector lever: Manual shift gate position 1.00 A G
● PC SOL B MON Other than the above. 0.30 A

SCIA2907E
I
Without CONSULT-II
1. Start the engine.
J
2. Check pulse between TCM connector terminals 21 and 36.
Data
Connector Terminal Condition
(Approx.) K
When engine is running with idle
F57 36 - 21 (Ground) speed and setting selector lever 300 Hz
to “P” position. L
OK or NG
OK >> GO TO 7.
NG >> GO TO 2. SCIA2911E
M

2. CHECK PRESSURE CONTROL SOLENOID VALVE B CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals 21 and 36.
Resistance
Connector Terminal (Wire color) Condition
(Approx.)
F57 36 - 21 (Ground) Temperature: 20°C (68°F) 5.0 - 5.6 Ω

OK or NG
OK >> GO TO 7.
NG >> GO TO 3.

SCIA2912E

Revision: November 2006 AT-569 2006 Altima

 DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH PRESSURE CONTROL SOLENOID VALVE B
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 3 and 7.
Connector Terminal Condition Resistance (Approx.)
F30 3-7 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

SCIA2913E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK PRESSURE CONTROL SOLENOID VALVE B

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve B harness connector.
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
F106 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4341E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND PRESSURE CONTROL SOLE-
NOID VALVE B
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and pressure control solenoid valve
B.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-567, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-570 2006 Altima

 DTC P0775 PRESSURE CONTROL SOLENOID VALVE B (SHIFT PRESSURE)
[RE5F22A]
8. CHECK TCM A
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG B
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
AT
Component Inspection ECS009HE

PRESSURE CONTROL SOLENOID VALVE B

1. Remove side cover. Refer to AT-629, "Side cover" . D
2. Disconnect pressure control solenoid valve B harness connector.
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
E

F106 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω

4. If NG, replace the control valve assembly. Refer to AT-629, F
"Control Valve Assembly" .

SCIA4341E

Revision: November 2006 AT-571 2006 Altima

 DTC P0780 SHIFT
[RE5F22A]
DTC P0780 SHIFT PFP:31940

Description ECS009HF

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction.
● This malfunction is detected when the A/T does not shift as instructed by the TCM. This is not caused by
electrical malfunction (circuits open or shorted) but by mechanical malfunction such as control valve stick-
ing, improper solenoid valve operation, etc.
On Board Diagnosis Logic ECS009HG

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “SHIFT” with CONSULT-II or P0780 without CONSULT-II is detected under the
following conditions.
– When no rotation change occurs between input (turbine revolution sensor) and output (revolution sensor)
and shifting time is long.
– When shifting ends immediately.
– When engine revs up unusually during shifting.
Possible Cause ECS009HH

● Shift solenoid valve D

(Off error.)
● Shift solenoid valve E
(Off error.)
● Pressure control solenoid valve A
(On/Off error.)
● Pressure control solenoid valve B
(On/Off error.)
● Pressure control solenoid valve C
(On/Off error.)
● Hydraulic control circuit
DTC Confirmation Procedure ECS009HI

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Start engine and select “A/T” with “DATA MONITOR” mode in
CONSULT-II.
2. Make sure that ATF temperature is within the range below.
FLUID TEMP: More than 60°C (140°F)
If out of range, drive the vehicle to warm up the fluid.
3. Drive vehicle and allow the following conditions.
SLCT LVR POSI: “D” position
GEAR: 1st Þ 2nd Þ 3rd Þ 4th Þ 5th position
(Vehicle speed: Refer to AT-702, "VEHICLE SPEED WHEN
SHIFTING GEARS - 9J500 MODELS" .)
4. If DTC is detected, go to AT-575, "Diagnostic Procedure" . BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-572 2006 Altima

 DTC P0780 SHIFT
[RE5F22A]
Wiring Diagram — AT — SFTFNC ECS009HJ

AT

WCWA0210E

Revision: November 2006 AT-573 2006 Altima

 DTC P0780 SHIFT
[RE5F22A]

WCWA0211E

Revision: November 2006 AT-574 2006 Altima

 DTC P0780 SHIFT
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color

Pressure control
When engine is running with idle speed and set-
21 G/B solenoid valve B 0V B
ting selector lever to “P” position.
ground

When shift solenoid valve D operates.

Battery voltage
(When driving in 3rd, 4th or 5th gear.) AT
Shift solenoid
26 PU/W
valve D
When shift solenoid valve D does not operate. 0V
D
Pressure control
When engine is running with idle speed and set-
28 W solenoid valve C 0V
ting selector lever to “P” position.
ground
E
Pressure control When engine is running with idle speed and set-
35 L/Y 300Hz
solenoid valve A ting selector lever to “P” position.
Pressure control When engine is running with idle speed and set-
36 OR/B 300Hz F
solenoid valve B ting selector lever to “P” position.
Pressure control
When engine is running with idle speed and set-
40 L/G solenoid valve A 0V
ting selector lever to “P” position.
ground G
Pressure control When engine is running with idle speed and set-
45 OR 300Hz
solenoid valve C ting selector lever to “P” position.
When shift solenoid valve E operates. H
Battery voltage
(When driving in reverse gear.)
Shift solenoid
47 BR/Y
valve E
When shift solenoid valve E does not operate. 0V I

Diagnostic Procedure ECS009HK

J
1. CHECK EACH SHIFT SOLENOID VALVE CIRCUIT
Perform “Diagnostic Procedure” for the following DTCs.
● “DTC P0765 SHIFT SOLENOID VALVE D” (Refer to AT-559, "Diagnostic Procedure" .) K
● “DTC P0770 SHIFT SOLENOID VALVE E” (Refer to AT-564, "Diagnostic Procedure" .)
OK or NG
L
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

2. CHECK EACH PRESSURE CONTROL SOLENOID VALVE CIRCUIT M

Perform “Diagnostic Procedure” for the following DTCs.

● “DTC P0745 PRESSURE CONTROL SOLENOID VALVE A” (Refer to AT-534, "Diagnostic Procedure" .)
● “DTC P0775 PRESSURE CONTROL SOLENOID VALVE B” (Refer to AT-569, "Diagnostic Procedure" .)
● “DTC P0795 PRESSURE CONTROL SOLENOID VALVE C” (Refer to AT-578, "Diagnostic Procedure" .)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-572, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .

Revision: November 2006 AT-575 2006 Altima

 DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT
PRESSURE)
[RE5F22A]
DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT PRES-
SURE) PFP:31940

Description ECS009HL

● The pressure control solenoid valve C is normally low, 3-port lin-

ear pressure control solenoid.
● The pressure control solenoid valve C is activated to control the
apply and release of the 2nd brake and 1st and reverse brake,
and torque converter clutch.
● Lock-up operation, however, is prohibited when A/T fluid tem-
perature is too low.
● When the accelerator pedal is depressed (less than 1/8) in lock-
up condition, the engine speed should not change abruptly. If
there is a big jump in engine speed, there is no lock-up.
SCIA2833E

On Board Diagnosis Logic ECS009HM

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “PC SOL C(TCC&SFT)” with CONSULT-II or P0795 without CONSULT-II is
detected under the following conditions.
– When normal voltage is not applied to solenoid due to open, short, and so on.
– When TCM detects as irregular by comparing target value with monitor value.
Possible Cause ECS009HN

● Harness or connectors
(The solenoid circuit is open or shorted.)
● Pressure control solenoid valve C
DTC Confirmation Procedure ECS009HO

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Run engine for at least 13 consecutive seconds at idle speed.
5. If DTC is detected, go to AT-578, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-576 2006 Altima

 DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT
PRESSURE)
[RE5F22A]
Wiring Diagram — AT — PC/C ECS009HP

AT

WCWA0212E

Revision: November 2006 AT-577 2006 Altima

 DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT
PRESSURE)
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
Pressure control
When engine is running with idle speed and set-
28 W solenoid valve C 0V
ting selector lever to “P” position.
ground
Pressure control When engine is running with idle speed and set-
45 OR 300Hz
solenoid valve C ting selector lever to “P” position.

Diagnostic Procedure ECS009HQ

1. CHECK PRESSURE CONTROL SOLENOID VALVE C SIGNAL

With CONSULT-II
1. After warming up the engine and transaxle, turn ignition switch “OFF”.
2. Turn ignition switch “ON”. (Do not start engine.)
3. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
4. Read out the value of “PC SOL C OUT” and “PC SOL C MON”.
Display value
Monitor item Condition
(Approx.)
● PC SOL C OUT Selector lever: Manual shift gate position 1.00 A
● PC SOL C MON Other than the above. 0.20 A

SCIA2907E

Without CONSULT-II
1. Start the engine.
2. Check pulse between TCM connector terminals 28 and 45.
Data
Connector Terminal Condition
(Approx.)
When engine is running with idle
F57 45 - 28 (Ground) speed and setting selector lever 300 Hz
to “P” position.
OK or NG
OK >> GO TO 7.
NG >> GO TO 2. SCIA2914E

2. CHECK PRESSURE CONTROL SOLENOID VALVE C CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals 28 and 45.
Resistance
Connector Terminal Condition
(Approx.)
F57 45 - 28 (Ground) Temperature: 20°C (68°F) 5.0 - 5.6 Ω

OK or NG
OK >> GO TO 7.
NG >> GO TO 3.

SCIA2915E

Revision: November 2006 AT-578 2006 Altima

 DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT
PRESSURE)
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH PRESSURE CONTROL SOLENOID VALVE C A
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 2 and 5. B

Connector Terminal Condition Resistance (Approx.)

F62 2-5 Temperature: 20°C (68°F) 5.0 - 5.6 Ω AT
OK or NG
OK >> GO TO 4.
NG >> GO TO 5. D

E
SCIA2916E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

F
Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG G
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
H
5. CHECK PRESSURE CONTROL SOLENOID VALVE C
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve C harness connector. I
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.) J
F107 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
K
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
L

SCIA4342E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND PRESSURE CONTROL SOLE- M
NOID VALVE C
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and pressure control solenoid valve
C.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-576, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.

Revision: November 2006 AT-579 2006 Altima

 DTC P0795 PRESSURE CONTROL SOLENOID VALVE C (TCC AND SHIFT
PRESSURE)
[RE5F22A]
8. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009HR

PRESSURE CONTROL SOLENOID VALVE C

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve C harness connector.
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
F107 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4342E

Revision: November 2006 AT-580 2006 Altima

 DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON
[RE5F22A]
DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON PFP:31940
A
Description ECS009HS

● This malfunction will not be detected while the A/T CHECK indicator lamp is indicating another self-diag-
nosis malfunction. B
● This is not caused by electrical malfunction (circuits open or shorted) but by mechanical malfunction such
as control valve sticking, improper solenoid valve operation, etc.
● The pressure control solenoid valve C is normally low, 3-port lin- AT
ear pressure control solenoid.
● The pressure control solenoid valve C is activated to control the
apply and release of the 2nd brake and 1st and reverse brake, D
and torque converter clutch.
● Lock-up operation, however, is prohibited when A/T fluid tem-
perature is too low.
E
● When the accelerator pedal is depressed (less than 1/8) in lock-
up condition, the engine speed should not change abruptly. If
there is a big jump in engine speed, there is no lock-up.
SCIA2833E F
On Board Diagnosis Logic ECS009HT

● This is an OBD-II self-diagnostic item. G

● Diagnostic trouble code “PC SOL C STC ON” with CONSULT-II or P0797 without CONSULT-II is detected
when condition of pressure control solenoid valve C is different from monitor value, and relation between
gear position and actual gear ratio or lock-up status is irregular.
H
Possible Cause ECS009HU

● Pressure control solenoid valve C

(On stick.) I
● Hydraulic control circuit
DTC Confirmation Procedure ECS009HV
J
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test. K
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) L
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
M
4. Run engine for at least 4 consecutive minutes at idle speed.
5. If DTC is detected, go to AT-583, "Diagnostic Procedure" .

BCIA0030E

WITH GST
Follow the procedure “With CONSULT-II”.

Revision: November 2006 AT-581 2006 Altima

 DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON
[RE5F22A]
Wiring Diagram — AT — PC/CS ECS009HW

WCWA0213E

Revision: November 2006 AT-582 2006 Altima

 DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire A
Terminal Item Condition Data (Approx.)
color
Pressure control
When engine is running with idle speed and set-
28 W solenoid valve C 0V
ting selector lever to “P” position. B
ground
Pressure control When engine is running with idle speed and set-
45 OR 300Hz
solenoid valve C ting selector lever to “P” position.
AT
Diagnostic Procedure ECS009HX

1. CHECK PRESSURE CONTROL SOLENOID VALVE C SIGNAL

D
With CONSULT-II
1. After warming up the engine and transaxle, turn ignition switch “OFF”.
2. Turn ignition switch “ON”. (Do not start engine.) E
3. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
4. Read out the value of “PC SOL C OUT” and “PC SOL C MON”.
F
Display value
Monitor item Condition
(Approx.)
● PC SOL C OUT Selector lever: Manual shift gate position 1.00 A G
● PC SOL C MON Other than the above. 0.20 A

SCIA2907E
I
Without CONSULT-II
1. Start the engine.
J
2. Check pulse between TCM connector terminals 28 and 45.
Data
Connector Terminal Condition
(Approx.) K
When engine is running with idle
F57 45 - 28 (Ground) speed and setting selector lever 300 Hz
to “P” position. L
OK or NG
OK >> GO TO 7.
NG >> GO TO 2. SCIA2914E
M

2. CHECK PRESSURE CONTROL SOLENOID VALVE C CIRCUIT

1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals 28 and 45.
Resistance
Connector Terminal Condition
(Approx.)
F57 45 - 28 (Ground) Temperature: 20°C (68°F) 5.0 - 5.6 Ω

OK or NG
OK >> GO TO 7.
NG >> GO TO 3.

SCIA2915E

Revision: November 2006 AT-583 2006 Altima

 DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON
[RE5F22A]
3. CHECK TERMINAL CORD ASSEMBLY WITH PRESSURE CONTROL SOLENOID VALVE C
1. Turn ignition switch “OFF”.
2. Disconnect terminal cord assembly harness connector.
3. Check resistance between terminals 2 and 5.
Connector Terminal Condition Resistance (Approx.)
F62 2-5 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.

SCIA2916E

4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY

Check the following.
● Open or short-circuit in the harness between TCM and terminal cord assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

5. CHECK PRESSURE CONTROL SOLENOID VALVE C

1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve C harness connector.
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
F107 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
OK or NG
OK >> GO TO 6.
NG >> Replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .

SCIA4342E

6. CHECK HARNESS BETWEEN TERMINAL CORD ASSEMBLY AND PRESSURE CONTROL SOLE-
NOID VALVE C
Check the following.
● Open or short-circuit in the harness between terminal cord assembly and pressure control solenoid valve
C.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace transmission wire. Refer to AT-629, "Terminal Cord Assembly" .

7. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-584 2006 Altima

 DTC P0797 PRESSURE CONTROL SOLENOID VALVE C STUCK ON
[RE5F22A]
8. CHECK DTC A
Perform “DTC Confirmation Procedure”. Refer to AT-581, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END B
NG >> Replace the control valve assembly. Refer to AT-629, "Control Valve Assembly" .
Component Inspection ECS009HY
AT
PRESSURE CONTROL SOLENOID VALVE C
1. Remove side cover. Refer to AT-629, "Side cover" .
2. Disconnect pressure control solenoid valve C harness connector. D
3. Check resistance between terminals 1 and 2.
Connector Terminal Condition Resistance (Approx.)
E
F107 1-2 Temperature: 20°C (68°F) 5.0 - 5.6 Ω
4. If NG, replace the control valve assembly. Refer to AT-629,
"Control Valve Assembly" .
F

G
SCIA4342E

Revision: November 2006 AT-585 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
DTC P0826 MANUAL MODE SWITCH CIRCUIT PFP:34901

Description ECS009HZ

Manual mode switch is installed in A/T device. It sends manual mode switch, shift up and shift down switch
signals to TCM.
TCM sends the switch signals to unified meter and A/C amp. by CAN communication line. Then manual mode
switch position is indicated on the A/T indicator. For inspection, refer to AT-591, "Position Indicator" .
CONSULT-II Reference Value in Data Monitor Mode ECS009I0

Monitor Item Condition Reference Value

Manual shift gate position (neutral) ON
MANU MODE SW (ON/OFF)
Other than the above OFF
Manual shift gate position OFF
NON M-MODE SW (ON/OFF)
Other than the above ON
Selector lever: + side ON
UP SW (ON/OFF)
Other than the above OFF
Selector lever: - side ON
DOWN SW (ON/OFF)
Other than the above OFF

On Board Diagnosis Logic ECS009I1

● This is not an OBD-II self-diagnostic item.

● Diagnostic trouble code “MANUAL MODE SWITCH” with CONSULT-II is detected when TCM monitors
manual mode, non manual mode, up or down switch signals, and judges as irregular when impossible
input pattern occurs.
Possible Cause ECS009I2

● Harness or connectors
(These switches circuit is open or shorted.)
● Manual mode switch (built into A/T device)
DTC Confirmation Procedure ECS009I3

NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Move selector lever to “M” position (manual shift gate position).
4. Shift selector lever into “+ side” and “- side”.
5. Wait for at least 30 consecutive seconds.
6. If DTC is detected, go to AT-589, "Diagnostic Procedure" .

BCIA0030E

Revision: November 2006 AT-586 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
Wiring Diagram — AT — MMSW ECS009I4

AT

WCWA0214E

Revision: November 2006 AT-587 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color

Manual mode Selector lever: + side 0V

5 L/Y
switch UP (+) Other than the above Battery voltage

Manual mode Selector lever: - side 0V

6 L/R
switch DOWN (-) Other than the above Battery voltage

Manual mode Selector lever: “P”, “R”, “N” or “D” position 0V

16 SB
switch AUTO Selector lever: Manual shift gate position Battery voltage

Manual mode Selector lever: Manual shift gate position (neutral) 0V

19 P/B
switch MANUAL Other than the above Battery voltage

Revision: November 2006 AT-588 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
Diagnostic Procedure ECS009I5

1. CHECK MANUAL MODE SWITCH CIRCUIT A

With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) B
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Read out ON/OFF switching action of the “MANU MODE SW”,
“NON M-MODE SW”, “UP SW”, “DOWN SW”. AT

SCIA2917E
F

Without CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.) G
2. Check voltage between the TCM connector terminals and
ground.
H
Connector Voltage
Terminal Condition
No. (Approx.)
Selector lever: + side 0V
I
5 - Ground Battery
Other than the above
voltage
Selector lever: - side 0V
J
6 - Ground Battery
Other than the above SCIA2918E
voltage

F56 Selector lever: “P”, “R”, “N” or “D” posi- K

0V
tion
16 - Ground
Selector lever: Manual shift gate posi- Battery
tion voltage
L
Selector lever: Manual shift gate posi-
0V
tion (neutral)
19 - Ground
Battery
Other than the above M
voltage

OK or NG
OK >> GO TO 4.
NG >> GO TO 2.

Revision: November 2006 AT-589 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
2. CHECK HARNESS BETWEEN TCM AND A/T DEVICE (MANUAL MODE SWITCH)
1. Turn ignition switch “OFF”.
2. Disconnect the TCM connector.
3. Check the continuity between TCM connector terminals 5, 6, 16,
19 and ground.
Connector
Terminal Condition Continuity
No.
Selector lever: + side Yes
5 - Ground
Other than the above No
Selector lever: - side Yes
6 - Ground
Other than the above No
Selector lever: “P”, “R”, “N” or “D” posi- SCIA2919E
F56 Yes
tion
16 - Ground
Selector lever: Manual shift gate posi-
No
tion
Selector lever: Manual shift gate posi-
Yes
19 - Ground tion (neutral)
Other than the above No
4. If OK, check harness for short-circuit to ground or power source.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM

Check the following.
● Open or short-circuit in the harness between TCM and A/T device (manual mode switch).
● Open or short-circuit in the harness for ground of manual mode switch.
● Manual mode switch. Refer to AT-591, "Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK DTC
Perform “DTC Confirmation Procedure”. Refer to AT-586, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-590 2006 Altima

 DTC P0826 MANUAL MODE SWITCH CIRCUIT
[RE5F22A]
Component Inspection ECS009I6

MANUAL MODE SWITCH A

Check continuity between terminals.
Terminal B
Item Position Connector Continuity
(Unit side)

Manual mode Auto 11 - 12

(select) switch Manual 3 - 11 AT
M34 Yes
UP switch UP 8 - 11
DOWN switch DOWN 7 - 11
D
WCIA0454E

Position Indicator ECS009I7

E
DIAGNOSTIC PROCEDURE
1. CHECK INPUT SIGNALS (WITH CONSULT-II)
F
With CONSULT-II
1. Start engine.
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II and G
read out the value of “MANU GR POSI”.
3. Drive vehicle in the manual mode, and make sure that the actual
gear position and the meter's indication of the position mutually H
coincide when the selector lever is shifted to the “+ (up)” or “-
(down)” side (1st ⇔ 5th gear).
OK or NG I
OK >> INSPECTION END
NG >> GO TO 2.
SCIA2920E J

2. CHECK DTC WITH TCM

K
Perform self-diagnosis of TCM. Refer to AT-463, "SELF-DIAG RESULT MODE" .
OK or NG
OK >> Check combination meter. Refer to DI-43, "A/T INDICATOR" . L
NG >> Check the malfunctioning system.

Revision: November 2006 AT-591 2006 Altima

 DTC P0882 TCM POWER INPUT SIGNAL
[RE5F22A]
DTC P0882 TCM POWER INPUT SIGNAL PFP:31036

Description ECS009I8

When the power supply to the TCM is cut “OFF”, for example because the battery is removed, and the self-
diagnostics memory function stops, malfunction is detected.
On Board Diagnosis Logic ECS009I9

● This is an OBD-II self-diagnostic item.

● Diagnostic trouble code “TCM POWER INPT SIG” with CONSULT-II or P0882 without CONSULT-II is
detected when voltage supplied to TCM is too low.
Possible Cause ECS009IA

● Harness or connectors
(Battery or ignition switch and TCM circuit is open or shorted.)
● A/T PV IGN relay
DTC Confirmation Procedure ECS009IB

CAUTION:
● Always drive vehicle at a safe speed.
● Be careful not to rev engine into the red zone on the tachometer.
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch “OFF”
and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Start engine.
4. Depress accelerator pedal or drive vehicle and maintain the fol-
lowing condition for at least 20 consecutive seconds.
TURBINE REV: More than 800 rpm
5. If DTC is detected, go to AT-595, "Diagnostic Procedure" .

BCIA0030E

Revision: November 2006 AT-592 2006 Altima

 DTC P0882 TCM POWER INPUT SIGNAL
[RE5F22A]
Wiring Diagram — AT — PWR/IN ECS009IC

AT

BCWA0476E

Revision: November 2006 AT-593 2006 Altima

 DTC P0882 TCM POWER INPUT SIGNAL
[RE5F22A]
TCM terminals and data are reference value. Measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color

When turning ignition switch ON. 0 - 1.5V

1 L/B A/T PV IGN relay

When turning ignition switch OFF. 0V

14 B Ground Always 0V

When turning ignition switch ON. Battery voltage

Power supply
27 Y/R
(Memory back-up)
When turning ignition switch OFF. Battery voltage

When turning ignition switch ON. Battery voltage

34 Y Power supply

When turning ignition switch OFF. 0V

When turning ignition switch ON. Battery voltage

Power supply
38 R/Y
(A/T PV IGN relay)
Measure 3 seconds after switching “OFF” the
0V
ignition switch.

When turning ignition switch ON. Battery voltage

Power supply
39 R/Y
(A/T PV IGN relay)
Measure 3 seconds after switching “OFF” the
0V
ignition switch.

48 B Ground Always 0V

Revision: November 2006 AT-594 2006 Altima

 DTC P0882 TCM POWER INPUT SIGNAL
[RE5F22A]
Diagnostic Procedure ECS009ID

1. CHECK TCM POWER SOURCE CIRCUIT A

1. Turn ignition switch “ON”. (Do not start engine.)

2. Check voltage between TCM terminals and ground. B

Connector Terminal Voltage (Approx.)

F56 1 - Ground 0 - 1.5V AT
27 - Ground
34 - Ground
F57 Battery voltage D
38 - Ground
39 - Ground
SCIA2930E
3. Turn ignition switch “OFF”. E
4. Check voltage between TCM terminals and ground.
Connector Terminal Voltage (Approx.)
F
F56 1 - Ground 0V
27 - Ground Battery voltage
34 - Ground 0V G
F57
38 - Ground 0V
39 - Ground 0V
H
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
I
2. DETECT MALFUNCTIONING ITEM
Check the following: J
● Harness for short or open between battery and TCM terminal 27
● Harness for short or open between ignition switch and TCM terminals 1, 34, 38 and 39
● 10A fuse [No. 19, located in the fuse block (J/B) or No. 48, located in the IPDM E/R] K
● Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT"
● A/T PV IGN relay. Refer to AT-596, "Component Inspection"
L
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
M
3. CHECK TCM GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect TCM harness connector.
3. Check continuity between TCM terminals 14, 48 and ground.
Continuity should exist.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.

SCIA2933E

Revision: November 2006 AT-595 2006 Altima

 DTC P0882 TCM POWER INPUT SIGNAL
[RE5F22A]
4. CHECK DTC
Check again. Refer to AT-592, "DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection ECS009IE

A/T PV IGN RELAY

1. Apply 12V direct current between A/T PV IGN relay terminals 1
and 2.
2. Check continuity between relay terminals 2 and 3.
Condition Continuity
12V direct current supply between terminals 1 and 2 Yes
OFF No
3. If NG, replace A/T PV IGN relay.

WCIA0555E

Revision: November 2006 AT-596 2006 Altima

 DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM
[RE5F22A]
DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM PFP:23710
A
Description ECS009IF

This DTC is displayed with other DTCs regarding ECM. Perform the trouble diagnosis for other DTCs dis-
played. Refer to EC-689, "TROUBLE DIAGNOSIS" . B
When this DTC is detected, lock-up operation and learning control are canceled.

AT

Revision: November 2006 AT-597 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
TROUBLE DIAGNOSIS FOR SYMPTOMS PFP:00007

A/T CHECK Indicator Lamp does not come on ECS009IG

SYMPTOM:
A/T CHECK indicator lamp does not come on for about 2 seconds when turning ignition switch to
“ON”.
DIAGNOSTIC PROCEDURE
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Is a malfunction in the CAN communication indicated in the results?
YES or NO
YES >> Check the CAN communication line. Refer to AT-471, "DTC U1000 CAN COMMUNICATION
LINE" .
NO >> GO TO 2.

2. CHECK TCM POWER SOURCE CIRCUIT

1. Turn ignition switch “ON”. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
Refer to AT-593, "Wiring Diagram — AT — PWR/IN" .
Connector Terminal Voltage (Approx.)
F56 1 - Ground 0 - 1.5V
27 - Ground
34 - Ground
F57 Battery voltage
38 - Ground
39 - Ground
SCIA2930E
3. Turn ignition switch “OFF”.
4. Check voltage between TCM connector terminals and ground. Refer to AT-593, "Wiring Diagram — AT —
PWR/IN" .
Connector Terminal Voltage (Approx.)
F56 1 - Ground 0V
27 - Ground Battery voltage
34 - Ground 0V
F57
38 - Ground 0V
39 - Ground 0V

OK or NG
OK >> GO TO 4.
NG >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM

Check the following:
● Harness for short or open between battery and TCM terminal 27
● Harness for short or open between ignition switch and TCM terminals 1, 34, 38 and 39
● 10A fuse [No. 19, located in the fuse block (J/B) or No. 48, located in the IPDM E/R]
● Ignition switch. Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" .
● A/T PV IGN relay. Refer to AT-596, "Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-598 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
4. CHECK TCM GROUND CIRCUIT A
1. Turn ignition switch “OFF”.
2. Disconnect the TCM harness connector.
3. Check continuity between TCM terminals 14, 48 and ground. B
Refer to AT-593, "Wiring Diagram — AT — PWR/IN" .
4. If OK, check harness for short-circuit to ground or the power
source. AT
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power D
in harness or connectors.

E
SCIA2933E

5. CHECK A/T CHECK INDICATOR LAMP CIRCUIT

F
1. Turn ignition switch “OFF”.
2. Check the combination meter. Refer to DI-5, "COMBINATION METERS" .
OK or NG G
OK >> GO TO 6.
NG >> Replace the combination meter. Refer to DI-19, "Combination Meter" .
H
6. SYMPTOM CHECK
Check again.
OK or NG I
OK >> INSPECTION END
NG >> GO TO 7.
J
7. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . K
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END L
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-599 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
Engine Cannot Be Started In “P” or “N” Position ECS009IH

SYMPTOM:
● Engine cannot be started with selector lever in “P” or “N” position.
● Engine can be started with selector lever in “D”or “R” position.
DIAGNOSTIC PROCEDURE
1. CHECK STARTING SYSTEM
Check starting system. Refer to SC-7, "STARTING SYSTEM" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

2. CHECK CONTROL CABLE

Check the control cable.
● Refer to AT-628, "Control Cable Adjustment" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to AT-628, "Control Cable Adjustment" .

3. CHECK PNP SWITCH CIRCUIT

Perform self-diagnosis.
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT-478, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> INSPECTION END
In “P” Position, Vehicle Moves When Pushed ECS009II

SYMPTOM:
Even though the selector lever is set in the “P” position, the parking mechanism is not actuated,
allowing the vehicle to be moved when it is pushed.
DIAGNOSTIC PROCEDURE
1. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis.
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT-478, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" .
NO >> GO TO 2.

2. CHECK CONTROL CABLE

Check the control cable.
● Refer to AT-628, "Control Cable Adjustment" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to AT-628, "Control Cable Adjustment" .

3. SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-600 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
In “N” Position, Vehicle Moves ECS009IJ

SYMPTOM: A
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
B
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" . AT
OK or NG
OK >> GO TO 2.
NG >> Refill ATF. D
2. CHECK PNP SWITCH CIRCUIT
Perform self-diagnosis. E
Do the self-diagnostic results indicate PNP switch?
YES >> Check the malfunctioning system. Refer to AT-478, "DTC P0705 PARK/NEUTRAL POSITION
SWITCH" . F
NO >> GO TO 3.

3. CHECK CONTROL CABLE G

Check the control cable.
● Refer to AT-628, "Control Cable Adjustment" .
H
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable. Refer to AT-628, "Control Cable Adjustment" .
I
4. CHECK SYMPTOM
Check again. J
OK or NG
OK >> INSPECTION END
NG >> GO TO 4. K

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . L
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
M
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-601 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
Large Shock (“N” to “D” Position) ECS009IK

SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from the “N” to “D” position.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Accumulator. Refer to AT-643, "DISASSEMBLY" .
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-602 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
Vehicle Does Not Creep Backward In “R” Position ECS009IL

SYMPTOM: A
The vehicle does not creep in the “R” position. Or an extreme lack of acceleration is observed.
DIAGNOSTIC PROCEDURE
B
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" . AT
OK or NG
OK >> GO TO 2.
NG >> Refill ATF. D
2. CHECK CONTROL CABLE AND PNP SWITCH POSITION
Check the control cable and PNP switch position. E
● Refer to AT-628, "Control Cable Adjustment" .
OK or NG
OK >> GO TO 3. F
NG >> Adjust control cable and PNP switch position. Refer to AT-628, "Control Cable Adjustment" or AT-
626, "Park/Neutral Position (PNP) Switch Adjustment" .
G
3. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis.
H
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
I
4. DETECT MALFUNCTIONING ITEM
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" . J
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" . K
– 1st and reverse brake. Refer to AT-643, "DISASSEMBLY" .
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
L
– Torque convertor. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 5. M
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-603 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
Vehicle Does Not Creep Forward In “D” Position ECS009IM

SYMPTOM:
Vehicle does not creep forward when selecting “D” position.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK CONTROL CABLE AND PNP SWITCH POSITION

Check the control cable and PNP switch position.
● Refer to AT-628, "Control Cable Adjustment" .
OK or NG
OK >> GO TO 3.
NG >> Adjust control cable and PNP switch position. Refer to AT-628, "Control Cable Adjustment" or AT-
626, "Park/Neutral Position (PNP) Switch Adjustment" .

3. CHECK PRESSURE CONTROL SOLENOID VALVE A CIRCUIT

Perform self-diagnosis.
Do the self-diagnostic results indicate pressure control solenoid valve A?
YES >> Check the malfunctioning system. Refer to AT-532, "DTC P0745 PRESSURE CONTROL SOLE-
NOID VALVE A (LINE PRESSURE)" .
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
– Torque convertor. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-604 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
Vehicle Cannot Be Started From D1 ECS009IN

SYMPTOM: A
Vehicle cannot be started from D1 on cruise test - Part 1.
DIAGNOSTIC PROCEDURE
B
1. CONFIRM THE SYMPTOM
Check if vehicle creeps in “R” position. AT
OK or NG
OK >> GO TO 2.
NG >> Refer to AT-603, "Vehicle Does Not Creep Backward In “R” Position" . D
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. E
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 3. F

3. CHECK LINE PRESSURE

G
Check the line pressure at the engine stall point. Refer to AT-443, "LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 4. H
NG >> Check the malfunctioning item. Refer to AT-444, "Judgement of line pressure test" .

4. DETECT MALFUNCTIONING ITEM

I
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items: J
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
K
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
OK or NG
OK >> GO TO 5. L
NG >> Repair or replace damaged parts.

5. CHECK TCM
M
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D1 → D2 ECS009IO

SYMPTOM:
The vehicle does not shift-up from the D1 to D2 gear at the specified speed.

Revision: November 2006 AT-605 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D1.
OK or NG
OK >> GO TO 2.
NG >> Refer to AT-604, "Vehicle Does Not Creep Forward In “D” Position" , AT-605, "Vehicle Cannot Be
Started From D1" .

2. CHECK A/T FLUID LEVEL

Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.

3. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– 2nd brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D2 → D3 ECS009IP

SYMPTOM:
The vehicle does not shift-up from D2 to D3 gear at the specified speed.

Revision: November 2006 AT-606 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
A
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D1.
OK or NG B
OK >> GO TO 2.
NG >> Refer to AT-604, "Vehicle Does Not Creep Forward In “D” Position" ,AT-605, "Vehicle Cannot Be
Started From D1" . AT

2. CHECK A/T FLUID LEVEL

D
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 3. E
NG >> Refill ATF.

3. CHECK SELF-DIAGNOSTIC RESULTS

F
Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system. G
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM H

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
I
3. Check the following items:
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" . J
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts. K
5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . L
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
M
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D3 → D4 ECS009IQ

SYMPTOM:
● The vehicle does not shift-up from the D3 to D4 gear at the specified speed.

Revision: November 2006 AT-607 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D1.
OK or NG
OK >> GO TO 2.
NG >> Refer to AT-604, "Vehicle Does Not Creep Forward In “D” Position" , AT-605, "Vehicle Cannot Be
Started From D1" .

2. CHECK A/T FLUID LEVEL

Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.

3. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
– U/D clutch. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D4 → D5 ECS009IR

SYMPTOM:
● The vehicle does not shift-up from the D4 to D5 gear at the specified speed.

Revision: November 2006 AT-608 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
A
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in “D” position and vehicle can be started from D1.
OK or NG B
OK >> GO TO 2.
NG >> Refer to AT-604, "Vehicle Does Not Creep Forward In “D” Position" ,AT-605, "Vehicle Cannot Be
Started From D1" . AT

2. CHECK A/T FLUID LEVEL

D
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 3. E
NG >> Refill ATF.

3. CHECK SELF-DIAGNOSTIC RESULTS

F
Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system. G
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM H

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
I
3. Check the following items:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" .
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch J
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
K
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts. L
5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" . M
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Perform Lock-up ECS009IS

SYMPTOM:
A/T does not perform lock-up at the specified speed.

Revision: November 2006 AT-609 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK STOP LAMP SWITCH CIRCUIT

Check the stop lamp switch circuit. Refer to BRC-8, "TROUBLE DIAGNOSIS" (with ABS), BRC-53, "TROU-
BLE DIAGNOSIS" (with TCS/ABS).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Torque converter. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Hold Lock-up Condition ECS009IT

SYMPTOM:
The lock-up condition cannot be maintained for more than 30 seconds.

Revision: November 2006 AT-610 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
A
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG B
OK >> GO TO 2.
NG >> Refill ATF.
AT
2. CHECK STOP LAMP SWITCH CIRCUIT
Check the stop lamp switch circuit. Refer to BRC-8, "TROUBLE DIAGNOSIS" (with ABS), BRC-53, "TROU-
D
BLE DIAGNOSIS" (with TCS/ABS).
OK or NG
OK >> GO TO 3. E
NG >> Repair or replace damaged parts.

3. CHECK SELF-DIAGNOSTIC RESULTS

F
Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system. G
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM H

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
I
3. Check the following items:
– Torque converter. Refer to AT-643, "DISASSEMBLY" .
OK or NG J
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TCM K

1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. L
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts. M

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Lock-up Is Not Released ECS009IU

SYMPTOM:
The lock-up condition cannot be cancelled even after releasing the accelerator pedal.

Revision: November 2006 AT-611 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK STOP LAMP SWITCH CIRCUIT

Check the stop lamp switch circuit. Refer to BRC-8, "TROUBLE DIAGNOSIS" (with ABS), BRC-53, "TROU-
BLE DIAGNOSIS" (with TCS/ABS).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 4.

4. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Torque converter. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Cannot Be Changed to Manual Mode ECS009IV

SYMPTOM:
Does not change to manual mode when manual shift gate is used.

Revision: November 2006 AT-612 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
A
1. CHECK MANUAL MODE SWITCH CIRCUIT
Check the manual mode switch circuit. Refer to AT-586, "DTC P0826 MANUAL MODE SWITCH CIRCUIT" .
OK or NG B
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
AT
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis.
D
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> INSPECTION END E
A/T Does Not Shift: 5th gear → 4th gear ECS009IW

SYMPTOM:
When shifted from 5M to 4M position in manual mode, does not downshift from 5th to 4th gear. F
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL G

Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG H
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK SELF-DIAGNOSTIC RESULTS I

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic? J
YES >> Check the malfunctioning system.
NO >> GO TO 3.
K
3. DETECT MALFUNCTIONING ITEM
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
L
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– Forward and direct clutch assembly. Refer to AT-643, "DISASSEMBLY" . M
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-613 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: 4th gear → 3rd gear ECS009IX

SYMPTOM:
When shifted from 4M to 3M position in manual mode, does not downshift from 4th to 3rd gear.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– U/D clutch. Refer to AT-643, "DISASSEMBLY" .
– U/D brake. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: 3rd gear → 2nd gear ECS009IY

SYMPTOM:
When shifted from 3M to 2M position in manual mode, does not downshift from 3rd to 2nd gear.

Revision: November 2006 AT-614 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
DIAGNOSTIC PROCEDURE
A
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG B
OK >> GO TO 2.
NG >> Refill ATF.
AT
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis.
D
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 3. E
3. DETECT MALFUNCTIONING ITEM
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" . F
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– U/D brake. Refer to AT-643, "DISASSEMBLY" . G
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
OK or NG
H
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM I

1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. J
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts. K

5. CHECK SYMPTOM
Check again. L
OK or NG
OK >> INSPECTION END
M
NG >> Repair or replace damaged parts.
A/T Does Not Shift: 2nd gear → 1st gear ECS009IZ

SYMPTOM:
When shifted from 2M to 1M position in manual mode, does not downshift from 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

Revision: November 2006 AT-615 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis.
Is any malfunction detected by self-diagnostic?
YES >> Check the malfunctioning system.
NO >> GO TO 3.

3. DETECT MALFUNCTIONING ITEM

1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items:
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– 2nd brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" .
– One-way clutch No.1. Refer to AT-668, "One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake
Hub & One-Way Clutch No.1" .
– One-way clutch No.2. Refer to AT-643, "DISASSEMBLY" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

5. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Decelerate By Engine Brake ECS009J0

SYMPTOM:
No engine brake is applied when the gear is shifted from the 2nd to 1st gear.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT-441, "A/T FLUID CHECK" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.

2. CHECK SELF-DIAGNOSTIC RESULTS

Perform self-diagnosis.
Do the self-diagnostic results indicate shift solenoid valve E, electric throttle control system?
YES >> Check the malfunctioning system. Refer to AT-562, "DTC P0770 SHIFT SOLENOID VALVE E" ,
AT-597, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM" .
NO >> GO TO 3.

Revision: November 2006 AT-616 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
3. DETECT MALFUNCTIONING ITEM A
1. Control valve assembly. Refer to AT-629, "Control Valve Assembly" .
2. Disassemble A/T. Refer to AT-643, "DISASSEMBLY" .
3. Check the following items: B
– 2nd coast brake. Refer to AT-662, "Oil Pump, 2nd Coast Brake & 2nd Brake" , AT-668, "One-Way Clutch
Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way Clutch No.1" .
– U/D brake. Refer to AT-643, "DISASSEMBLY" . AT
– B5 brake. Refer to AT-670, "Transaxle Case Cover & B5 Brake" .
OK or NG
D
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK TCM E

1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. F
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts. G

5. CHECK SYMPTOM
H
Check again.
OK or NG
OK >> INSPECTION END
I
NG >> Repair or replace damaged parts.
TCM Self-diagnosis Does Not Activate ECS009J1

SYMPTOM: J
A/T CHECK indicator lamp does not come on in TCM self-diagnostic procedure even if the lamp circuit
is good.
DESCRIPTION K
● Park/neutral position (PNP) switch
The park/neutral (PNP) switch assembly includes a transmission range switch. The transmission range
switch detects the selector lever position and sends a signal to the TCM. L
● Stop lamp switch signal
Detects the brake pedal state (stop lamp switch is ON or OFF) and sends a signal via CAN communica-
tion line to the TCM. M
● Closed throttle position signal
ECM judges throttle opening based on a signal from accelerator pedal position sensor, and sends the sig-
nal via CAN communication line to TCM.
DIAGNOSTIC PROCEDURE
1. CHECK PARK/ NEUTRAL POSITION (PNP) SWITCH CIRCUIT
Check the park/neutral position (PNP) switch circuit. Refer to AT-478, "DTC P0705 PARK/NEUTRAL POSI-
TION SWITCH" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.

Revision: November 2006 AT-617 2006 Altima

 TROUBLE DIAGNOSIS FOR SYMPTOMS
[RE5F22A]
2. CHECK STOP LAMP SWITCH CIRCUIT
Perform self-diagnosis for ABS actuator and electric unit (control unit). Refer to BRC-8, "TROUBLE DIAGNO-
SIS" (with ABS), BRC-53, "TROUBLE DIAGNOSIS" (with TCS/ABS).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.

3. CHECK CLOSED THROTTLE POSITION SIGNAL CIRCUIT

Perform self-diagnosis for ECM. Refer to EC-654, "EMISSION-RELATED DIAGNOSTIC INFORMATION
ITEMS" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.

4. CHECK DATA MONITOR (WITH CONSULT-II)

With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.
3. Depress or release accelerator pedal and read out ON/OFF sig-
naling action of the “CLSD THL POS”.
4. Depress or release brake pedal and read out ON/OFF signaling
action of the “BRAKE SW”.
OK or NG
OK >> GO TO 7.
NG >> GO TO 5.

SCIA2946E

5. CHECK TCM
1. Check TCM input/output signal. Refer to AT-459, "TCM Input/Output Signal Reference Values" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.

6. CHECK CAN COMMUNICATION LINE

Check the CAN communication line. Refer to AT-471, "DTC U1000 CAN COMMUNICATION LINE" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

7. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace the TCM.

Revision: November 2006 AT-618 2006 Altima

 SHIFT CONTROL SYSTEM
[RE5F22A]
SHIFT CONTROL SYSTEM PFP:34901
A
Control Device ECS009J2

AT

WCIA0712E

1. Selector lever 2. Control device 3. Control device connector J

4. Control device illumination lamp 5. Slide plate 6. Selector knob
7. Manual mode switch (in control device) 8. Shift lock button
K

Revision: November 2006 AT-619 2006 Altima

 SHIFT CONTROL SYSTEM
[RE5F22A]
Control Cable ECS009J3

WCIA0713E

1. Cable clamp 2. Control cable 3. Lock plate

4. Control device

Revision: November 2006 AT-620 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE5F22A]
A/T SHIFT LOCK SYSTEM PFP:34950
A
Description ECS009J4

● The electrical key interlock mechanism also operates as a shift lock:

With the key switch turned to ON, the selector lever cannot be shifted from “P” (parking) to any other posi- B
tion unless the brake pedal is depressed.
With the key removed, the selector lever cannot be shifted from “P” to any other position.
The key cannot be removed unless the selector lever is placed in “P”.
AT
● The shift lock and key interlock mechanisms are controlled by the ON-OFF operation of the shift lock sole-
noid and by the operation of the rotator and slider located inside the key cylinder.
Shift Lock System Electrical Parts Location ECS009J5 D

L
WCIA0468E

Revision: November 2006 AT-621 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE5F22A]
Wiring Diagram — AT — SHIFT ECS009J6

WCWA0186E

Revision: November 2006 AT-622 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE5F22A]
Shift Lock Control Unit Reference Values ECS009J7

SHIFT LOCK HARNESS CONNECTOR TERMINAL LAYOUT A

AT

D
WCIA0465E

SHIFT LOCK CONTROL UNIT INSPECTION TABLE E

Data are reference values.
Terminal No.
(Wire color) Item Condition Judgement standard
F
(+) (-)
1 (W) 8 (B) Power source Always Battery voltage
The position when the key is inserted and the selector G
lever is set to a position other than the “P” position, or Battery voltage
2 (L) 8 (B) Detent switch (key) when it is shifted from the “R” to the “P” position
Except the above Approx. 0V H
When brake pedal is depressed Battery voltage
4 (R/G) 8 (B) Stop lamp switch
When brake pedal is released Approx. 0V
Vehicle speed sig- I
5 (P) 8 (B) — —
nal
Ignition switch: “ON” Battery voltage
6 (G) 8 (B) Ignition signal J
Ignition switch: “OFF” Approx. 0V
When the brake pedal is depressed Battery voltage
7 (R/W) 8 (B) Shift lock solenoid Ignition switch: “ON” and vehicle speed is less than 8 km/
Approx. 0V K
h (5 MPH)
8 (B) – Ground Always Approx. 0V
When the selector lever is set to a position other than the Battery voltage for approx. L
9 (G/W) 8 (B) Key lock signal “P” position 0.1 sec. (Note)
Except the above Approx. 0V

When the selector lever is set to the“ P” position

Battery voltage for approx. M
10 (W/G) 8 (B) Key unlock signal 0.1 sec. (Note)
Except the above Approx. 0V
NOTE:
Make sure that the pointer swings only momentarily because the output time is so short. If the inspection is done with an oscilloscope, it
should be observed that the power source voltage lasts for 3.5 to 10 ms.

Revision: November 2006 AT-623 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE5F22A]
Component Inspection ECS009J8

SHIFT LOCK SOLENOID

● Check operation by applying battery voltage to A/T device con-
nector.
CAUTION:
Be sure to apply the voltage of the correct polarity to the
respective terminals. Otherwise, the part may be damaged.
Terminal
9 (Battery voltage) - 10 (Ground)

SCIA3117E

DETENT SWITCH
For Key:
● Check continuity between terminals of the A/T device connector.
Condition Terminal Continuity
The position when the selector lever is set to a
position other than the “P” position, or when it is Yes
shifted from the “R” to the “P” position 5-6

Except the above No

SCIA3118E

KEY LOCK SOLENOID

Key Lock
● Check operation by applying battery voltage to key switch and
key lock solenoid connector.
CAUTION:
Be careful not to cause burnout of the harness.
Terminal
1 (Battery voltage) - 2 (Ground)

WCIA0455E

Key Unlock
● Check operation by applying battery voltage to key switch and
key lock solenoid connector.
CAUTION:
Be careful not to cause burnout of the harness.
Terminal
2 (Battery voltage) - 1 (Ground)

WCIA0456E

Revision: November 2006 AT-624 2006 Altima

 A/T SHIFT LOCK SYSTEM
[RE5F22A]
KEY SWITCH
● Check continuity between terminals of the key switch and key A
lock solenoid connector.
Condition Terminal Continuity
B
Key inserted Yes
3-4
Key removed No

AT

WCIA0457E
D

STOP LAMP SWITCH

● Check continuity between terminals of the stop lamp switch con- E
nector.
Condition Terminal Continuity
When brake pedal is depressed Yes F
1-2
When brake pedal is released No

Check stop lamp switch after adjusting brake pedal. Refer to BR-6,
G
"Inspection and Adjustment" .

WCIA0466E H

Revision: November 2006 AT-625 2006 Altima

 ON-VEHICLE SERVICE
[RE5F22A]
ON-VEHICLE SERVICE PFP:00000

Revolution Sensor Replacement ECS009J9

1. Remove intake air duct.

2. Disconnect electrical connector.
3. Remove revolution sensor from A/T.
CAUTION:
Do not damage the revolution sensor or transaxle case.
4. Installation is in the reverse order of removal.
CAUTION:
Do not reuse seal bolt.

BBIA0272E

Turbine Revolution Sensor Replacement ECS009JA

1. Remove battery and bracket.

2. Disconnect electrical connector.
3. Remove bolt and turbine revolution sensor from A/T.
CAUTION:
Do not damage the turbine revolution sensor or transaxle
case.
4. Installation is in the reverse order of removal.
CAUTION:
Do not reuse seal bolt.
BBIA0273E

Park/Neutral Position (PNP) Switch Adjustment ECS009JB

1. Remove battery and bracket.

2. Remove cable from range lever.
3. Set range lever in neutral position.
4. Remove range lever and install Tool.
Tool number : KV991J0060 (J-45404)
5. Loosen park/neutral position (PNP) switch bolts.
6. Adjust PNP switch so that Tool pointer aligns with neutral base
line on PNP switch body.

SCIA5374E

7. Tighten PNP switch bolts.

8. Reinstall range lever and cable.
9. Adjust control cable. Refer to AT-628, "Control Cable Adjust-
ment" .
10. Reinstall battery and bracket.
11. Check continuity of PNP switch. Refer to AT-482, "Component
Inspection" .

BBIA0274E

Revision: November 2006 AT-626 2006 Altima

 ON-VEHICLE SERVICE
[RE5F22A]
ATF Cooler ECS009JC

REMOVAL A
1. Drain ATF. Refer to AT-398, "Changing A/T Fluid" .
2. Drain engine coolant. Refer to MA-23, "DRAINING ENGINE COOLANT" .
3. Remove hose clamps and hoses from ATF cooler. B
4. Remove bolt from ATF cooler and remove ATF cooler.
INSTALLATION AT
Installation is in the reverse order of removal.
CAUTION:
Do not reuse sealing parts. D

F
BBIA0275E

ATF Cooler Valve ECS009JD

G

SCIA2975E

1. ATF cooler valve assembly 2. Hose clamp 3. Heater hose

4. Heater pipe 5. Outlet water hose 6. Hose clip
7. ATF cooler assembly 8. Transaxle assembly 9. Control cable bracket
10. Inlet water hose

Revision: November 2006 AT-627 2006 Altima

 ON-VEHICLE SERVICE
[RE5F22A]
COMPONENT INSPECTION
1. Make sure that ATF cooler valve is fully opened at room temper-
ature.
Dimension “A”: More than 72.0 mm (2.835 in)
A: Distance between ATF cooler valve port end face
and valve shaft end face.

SCIA2711J

2. Submerge ATF cooler valve in a water-filled container, and then

heat it up with temperature of over 82°C (180°F) for 10 minutes
more.

SCIA2993E

3. Make sure that ATF cooler valve is fully closed.

Dimension “A”: Less than 66.5 mm (2.618 in)
A: Distance between ATF cooler valve port end face
and valve shaft end face.

SCIA2711J

Control Cable Adjustment ECS009JE

Move selector lever from the P position to the D position. You should
be able to feel the detent in each position. If the detent cannot be felt
or the pointer indicating the position is improperly aligned, the control
cable needs adjustment.
1. Place selector lever in the P position.
CAUTION:
Turn wheels more than 1/4 turn and apply the parking brake.
2. Loosen control cable lock nut.
3. Using the specified force, push control cable in the direction of
the arrow shown. BBIA0279E

Specified force : 9.8 N (1.0 kg, 2.2 lb)

4. Tighten control cable lock nut.
5. Move selector lever from P to D position. Make sure that selector lever moves smoothly.
● Make sure that the starter operates when the selector lever is placed in the N or P position.

● Make sure that the transmission is locked properly when the selector lever is placed in the P
position.

Revision: November 2006 AT-628 2006 Altima

 ON-VEHICLE SERVICE
[RE5F22A]
Side cover ECS009JF

REMOVAL A
1. Remove engine under cover.
2. Drain ATF. Refer to AT-398, "Changing A/T Fluid" .
3. Remove side cover bolts and side cover. B
CAUTION:
Do not reuse sealing bolts.
AT

E
SCIA4144E

INSTALLATION
Installation is in the reverse order of removal. F
Control Valve Assembly ECS009JG

REMOVAL
1. Remove side cover. Refer to AT-629, "Side cover" . G
2. Disconnect solenoid valve connectors.
3. Disconnect control valve assembly bolts and remove control
valve assembly. H

SCIA4151E
K

INSTALLATION
Installation is in the reverse order of removal. L
● Install bolts in sequence as shown.
Specified torque : Refer to AT-634, "Components" . M

Bolt symbol Length mm (in) Number of bolts

A 55 (2.17) 2
B 50 (1.97) 2
C 16 (0.63) 2

SCIA4152E

Terminal Cord Assembly ECS009JH

REMOVAL
1. Remove PNP switch. Refer to AT-634, "Components" .
2. Remove side cover. Refer to AT-629, "Terminal Cord Assembly" .

Revision: November 2006 AT-629 2006 Altima

 ON-VEHICLE SERVICE
[RE5F22A]
3. Disconnect solenoid valve connectors.
4. Remove terminal cord assembly.

WCIA0238E

INSTALLATION
Installation is in the reverse order of removal.

Revision: November 2006 AT-630 2006 Altima

 REMOVAL AND INSTALLATION
[RE5F22A]
REMOVAL AND INSTALLATION PFP:00000
A
Removal ECS009JI

CAUTION:
● When removing the transaxle assembly from engine, first remove the crankshaft position sensor B
from the assembly.
● Do not damage sensor edge.
1. Drain engine coolant. Refer to MA-23, "DRAINING ENGINE COOLANT" . AT
2. Remove battery and bracket.
3. Remove air cleaner assembly. Refer to EM-118, "AIR CLEANER AND AIR DUCT" .
4. Disconnect the following connectors: D
● terminal cord assembly

● park/neutral position (PNP) switch

E
● revolution sensor

● vehicle speed sensor

● mass air flow sensor

F
● turbine revolution sensor

● ground

NOTE: G
To prevent mis-connect, revolution sensor harness connector is color taped for identification.
5. Remove ATF cooler valve assembly bracket bolts.
6. Disconnect ATF cooler line retainers. H
7. Disconnect ATF cooler lines from ATF cooler valve assembly.
8. Disconnect control cable at transaxle side.
9. Drain ATF. Refer to AT-398, "Changing A/T Fluid" . I
10. Remove push clips and engine undercover.
11. Remove upper transaxle to engine bolts.
J
12. Support engine using suitable tool.
13. Remove drive shafts. Refer to FAX-11, "Removal and Installation" .
14. Remove crankshaft position sensor from transaxle. K
15. Support transaxle with a suitable jack.
16. Remove starter motor from transaxle. Refer to FAX-11, "Removal and Installation" .
17. Remove front suspension member. Refer to FSU-15, "Removal and Installation" . L
18. Remove rear cover plate and torque converter to drive plate
bolts.
NOTE: M
Rotate crankshaft for access to torque converter to drive plate
bolts.
19. Remove lower transaxle to engine bolts.
20. Lower transaxle while supporting it with a jack.
21. If replacing the transaxle as a unit, remove the LH transaxle
mount from the transaxle case.
BBIA0277E

Revision: November 2006 AT-631 2006 Altima

 REMOVAL AND INSTALLATION
[RE5F22A]
Inspection After Removal ECS009JJ

● Check the drive plate runout as shown.

● If this runout is out of allowance, replace drive plate and ring
gear. Refer to AT-702, "SERVICE DATA AND SPECIFICATIONS
(SDS)" .
● If the drive plate needs to be replaced, align the crankshaft
dowel pin with the correct hole on the drive plate. Refer to EM-
241, "Dowel Pin Alignment" .
CAUTION:
Do not allow any magnetic materials to contact the ring gear
teeth.
SAT977H

Installation ECS009JK

CAUTION:
● When replacing an engine or transmission you must make sure the dowels are installed correctly
during re-assembly.
● Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of drive
train components.
1. When connecting torque converter to transaxle, measure dis-
tance “A” to be certain that they are correctly assembled.
Distance “A” : 14.0 mm (0.551 in) or more

SAT044A

2. Install the torque converter to drive plate.

Torque converter to : 49 - 58 N·m (5.0 - 5.9 kg-m,
drive plate bolts 37 - 42 ft-lb)
NOTE:
With converter installed, rotate crankshaft several turns to check
that transaxle rotates freely without binding.

WCIA0070E

3. Tighten bolts securing transaxle.

Tightening torque
Bolt No. mm (in)
N·m (kg-m, ft-lb)
1 70 - 79 (7.2 - 8.0, 52 - 58) 55 (2.17)
2 41.2 - 52.0 (4.2 - 5.3, 31 - 38) 40 (1.57)
3 70 - 79 (7.2 - 8.0, 52 - 58) 55 (2.17)
4. Installation of the remaining components is in the reverse order
of removal.
NOTE: SCIA3017E

To prevent mis-connect, revolution sensor harness connector is

color taped for identification.

Revision: November 2006 AT-632 2006 Altima

 REMOVAL AND INSTALLATION
[RE5F22A]
● Check fluid level in transaxle.
● Move selector lever through all positions to be sure that tran- A
saxle operates correctly.
With parking brake applied, run engine at idle. Move selector
lever through N to D and to R position. A slight shock should be B
felt through selector knob each time transaxle is shifted.
● When replacing the A/T assembly, initialize TCM. Refer to AT-
390, "Precautions for A/T Assembly or TCM Replacement" .
AT
● Perform road test. Refer to AT-444, "ROAD TEST" .
SAT638A

Revision: November 2006 AT-633 2006 Altima

 OVERHAUL
[RE5F22A]
OVERHAUL PFP:00000

Components ECS009JL

WCIA0334E

Revision: November 2006 AT-634 2006 Altima

 OVERHAUL
[RE5F22A]
1. Adjust shim 2. O-ring 3. Differential gear assembly
4. O-ring 5. Tapered roller bearing 6. Tapered roller bearing
A
7. Outer race 8. O-ring 9. Compression spring
10. U/D brake piston assembly 11. U/D brake damper assembly 12. Snap ring
B
13. U/D brake band assembly 14. U/D clutch assembly 15. U/D gear assembly
16. Thrust needle roller bearing 17. Thrust bearing race 18. Seal ring
19. Transaxle case 20. B5 brake cushion plate 21. B5 brake disc
AT
22. Snap ring 23. U/D RR planetary ring gear sub assembly 24. Thrust bearing race
25. U/D RR planetary carrier assembly 26. Thrust needle roller bearing 27. Adjusting shim
28. Thrust bearing race 29. B5 brake flange 30. B5 brake plate
D
31. O-ring 32. Snap ring 33. Return spring
34. B5 brake piston 35. Transaxle case cover

Revision: November 2006 AT-635 2006 Altima

 OVERHAUL
[RE5F22A]

WCIA0385E

1. Snap ring 2. 2nd brake plate 3. Return spring

4. O-ring 5. Oil pump assembly 6. Oil seal
7. 2nd brake piston 8. 2nd brake sleeve 9. Snap ring

Revision: November 2006 AT-636 2006 Altima

 OVERHAUL
[RE5F22A]
10. 2nd brake disc 11. 2nd brake flange 12. One-way clutch No.1
13. 2nd coast brake hub 14. Snap ring 15. 2nd coast brake plate A
16. Snap ring 17. O-ring 18. 2nd coast brake piston
19. Return spring 20. 2nd coast brake disc 21. 2nd coast brake flange
22. Thrust washer 23. Thrust washer 24. Return spring B
25. 1st and reverse brake piston 26. Thrust bearing race 27. Counter drive gear sub assembly
28. One-way clutch outer race sub assem- 29. Thrust washer 30. Snap ring
bly AT
31. Thrust bearing 32. O-ring 33. Snap ring
34. Planetary gear assembly 35. FR planetary ring gear assembly 36. Snap ring
37. 1st and reverse brake disc 38. 1st and reverse brake flange 39. 1st and reverse brake plate D
40. 1st and reverse brake flange 41. One-way clutch No.2 42. Thrust bearing
43. Thrust bearing race 44. Thrust needle roller bearing 45. Seal ring
46. Forward and direct clutch assembly 47. Planetary sun gear sub assembly 48. Thrust bearing race E
49. Thrust needle roller bearing 50. RR planetary ring gear assembly 51. Thrust needle roller bearing
52. Thrust bearing race
F

Revision: November 2006 AT-637 2006 Altima

 OVERHAUL
[RE5F22A]
9J500 MODELS

WCIA0709E

1. Transaxle case cover 2. Seal ring 3. Forward clutch accumulator piston

4. Compression spring 5. Accumulator cover 6. O-ring

Revision: November 2006 AT-638 2006 Altima

 OVERHAUL
[RE5F22A]
7. Seal ring 8. Range lever 9. Washer plate
10. PNP switch 11. Lock washer 12. Parking lock pawl A
13. Torsion spring No.1 14. Parking lock pawl shaft 15. Spring guide sleeve
16. Torsion spring No.2 17. Parking lockpin sub assembly 18. U/D brake apply tube sub assembly
19. Tube clamp 20. Oil reservoir plate 21. Oil cleaner magnet B
22. Tube clamp 23. Differential gear lube apply tube 24. Seal ring
25. Thrust roller bearing 26. Straight screw plug 27. O-ring
28. Straight screw plug 29. Differential side oil seal 30. Torque converter
AT
31. Transaxle housing 32. O-ring 33. O-ring
34. Spring washer 35. Hexagon bolt 36. Washer
37. ATF cooler assembly 38. gasket 39. Drain plug
D
40. Breather hose 41. O-ring 42. A/T fluid charging pipe
43. A/T fluid level gauge 44. Manual valve lever sub assembly 45. Parking lock rod sub assembly
E
46. Control valve assembly 47. Suction cover gasket 48. Suction cover
49. Side cover 50. Seal bolt 51. Governor apply gasket
52. Sensor clamp 53. Terminal cord assembly 54. Transaxle lube apply tube
F
55. Tube clamp 56. Tube clamp 57. U/D clutch apply tube sub assembly
58. Bearing race 59. Seal ring 60. Seal bolt
61. Turbine revolution sensor 62. Differential side oil seal 63. Manual valve oil seal
G
64. O-ring 65. Anchor bolt 66. Revolution sensor
67. Seal bolt 68. Governor apply gasket 69. Transaxle case
70. Oil reservoir plate 71. Oil strainer sub assembly 72. Manual detent spring sub assembly
H
73. Parking lock pawl bracket 74. Governor apply gasket 75. Copper washer
76. A/T fluid cooler tube

Revision: November 2006 AT-639 2006 Altima

 OVERHAUL
[RE5F22A]
8Y100 MODELS

WCIA0710E

1. Transaxle case cover 2. Seal ring 3. Forward clutch accumulator piston

4. Compression spring 5. Accumulator cover 6. O-ring

Revision: November 2006 AT-640 2006 Altima

 OVERHAUL
[RE5F22A]
7. Seal ring 8. Range lever 9. Washer plate
10. PNP switch 11. Lock washer 12. Parking lock pawl A
13. Torsion spring No.1 14. Parking lock pawl shaft 15. Spring guide sleeve
16. Torsion spring No.2 17. Parking lockpin sub assembly 18. U/D brake apply tube sub assembly
19. Tube clamp 20. Oil reservoir plate 21. Oil cleaner magnet B
22. Tube clamp 23. Differential gear lube apply tube 24. Seal ring
25. Thrust roller bearing 26. Straight screw plug 27. O-ring
28. Straight screw plug 29. Differential side oil seal 30. Torque converter
AT
31. Transaxle housing 32. O-ring 33. O-ring
34. Spring washer 35. Hexagon bolt 36. Washer
37. ATF cooler assembly 38. gasket 39. Drain plug
D
40. Breather hose 41. O-ring 42. A/T fluid charging pipe
43. A/T fluid level gauge 44. Manual valve lever sub assembly 45. Parking lock rod sub assembly
E
46. Control valve assembly 47. Suction cover gasket 48. Suction cover
49. Side cover 50. Seal bolt 51. Governor apply gasket
52. Sensor clamp 53. Transmission wire 54. Transaxle lube apply tube
F
55. Tube clamp 56. Tube clamp 57. U/D clutch apply tube sub assembly
58. Bearing race 59. Seal ring 60. Seal bolt
61. Turbine revolution sensor 62. Differential side oil seal 63. Manual valve oil seal
G
64. O-ring 65. Anchor bolt 66. Revolution sensor
67. Seal bolt 68. Governor apply gasket 69. Transaxle case
70. Oil reservoir plate 71. Oil strainer sub assembly 72. Manual detent spring sub assembly
H
73. Parking lock pawl bracket 74. Governor apply gasket

Revision: November 2006 AT-641 2006 Altima

 OVERHAUL
[RE5F22A]
Locations of Needle Bearings, Bearing Races and Thrust Washers ECS009JM

WCIA0336E

Revision: November 2006 AT-642 2006 Altima

 DISASSEMBLY
[RE5F22A]
DISASSEMBLY PFP:31020
A
Disassembly ECS009JN

1. Drain ATF from transaxle. Refer to AT-398, "Changing A/T Fluid" .

2. Remove torque converter from transaxle case by holding it B
firmly and turning while pulling straight out.

AT

SCIA4134E E

3. Remove A/T fluid level gauge.

4. Remove A/T fluid charging pipe. F
5. Remove O-ring from A/T fluid charging pipe.
6. Remove air breather hose.
G
7. Remove A/T fluid cooler tube.

SCIA4135E

I
8. Remove turbine revolution sensor.
CAUTION:
Do not damage the turbine revolution sensor or transaxle J
case.

L
SCIA4137E

9. Remove revolution sensor. M

CAUTION:
Do not damage the revolution sensor or transaxle case.

SCIA4136E

Revision: November 2006 AT-643 2006 Altima

 DISASSEMBLY
[RE5F22A]
10. Remove nut and range lever.

SCIA4138E

11. Pry off the lock washer using suitable tool.

CAUTION:
Do not reuse lock washer.

SCIA4139E

12. Loosen nut and remove lock washer.

13. Remove washer plate.
CAUTION:
Do not reuse washer plate.

SCIA4140E

14. Remove PNP switch from transaxle case.

Bolt symbol Length mm (in) Number of bolts
A 20 (0.79) 1
B 33 (1.30) 1

SCIA4141E

Revision: November 2006 AT-644 2006 Altima

 DISASSEMBLY
[RE5F22A]
15. Remove hexagon bolt.
16. Remove ATF cooler assembly, washer and spring washer. A
17. Remove O-rings from the ATF cooler assembly.
CAUTION:
Do not reuse spring washer or O-rings. B

AT

SCIA4142E

D
18. Remove side cover.
CAUTION:
● Do not damage side cover or transaxle case. E

G
SCIA4143E

● Do not reuse seal bolts. H

SCIA4144E K

19. Disconnect solenoid connectors.

CAUTION: L
Do not damage connector.

SCIA4146E

Revision: November 2006 AT-645 2006 Altima

 DISASSEMBLY
[RE5F22A]
20. Remove sensor clamp bolt.

SCIA4148E

21. Remove sensor clamp and A/T fluid temperature sensor.

CAUTION:
Do not damage A/T fluid temperature sensor.

SCIA4147E

22. Remove suction cover bolts.

SCIA4150E

23. Remove suction cover and suction cover gasket.

CAUTION:
Do not reuse gasket.

SCIA4149E

24. Remove control valve assembly bolts from transaxle case.

Bolt symbol Length mm (in) Number of bolts
A 55 (2.17) 2
B 50 (1.97) 2
C 16 (0.63) 2

SCIA4152E

Revision: November 2006 AT-646 2006 Altima

 DISASSEMBLY
[RE5F22A]

25. While holding control valve assembly, disconnect parking lock A

rod sub assembly from manual valve lever sub assembly and
remove control valve assembly.
NOTE:
Shift position is “N”. B

AT

SCIA4153E
D
26. Remove governor apply gaskets.
CAUTION:
E
Do not reuse gaskets.

H
SCIA4154E

27. Remove terminal cord assembly.

I
CAUTION:
Do not damage solenoid connectors or A/T fluid tempera-
ture sensor.
J

WCIA0471E
L

28. Remove oil pump assembly bolts from transaxle case.

M

SCIA4156E

Revision: November 2006 AT-647 2006 Altima

 DISASSEMBLY
[RE5F22A]

SCIA4157E

29. Remove oil pump assembly using Tool.

Tool number : ST33290001 (J-34286)

SCIA5359E

30. Remove oil seal from oil pump assembly using suitable tool.
CAUTION:
● Do not reuse oil seal.

● Do not scratch oil pump assembly.

SCIA4396E

31. Remove one-way clutch outer race sub assembly.

32. Remove thrust washer.

SCIA4159E

33. Remove transaxle housing bolts from transaxle case.

Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 13
B 35 (1.38) 2
C 45 (1.77) 1
D* — 1
*:Torx bolt

SCIA4160E

Revision: November 2006 AT-648 2006 Altima

 DISASSEMBLY
[RE5F22A]

AT

SCIA5495E

34. Remove transaxle housing using suitable tool. D

G
SCIA4162E

35. Remove governor apply gasket and seal ring.

H
CAUTION:
Do not reuse gasket and seal ring.
I

SCIA4163E
K
36. Remove tube clamp.

SCIA4164E

37. Remove differential gear lube apply tube using suitable tool.
CAUTION:
● Do not bend or damage differential gear lube apply tube.

● Do not damage transaxle housing.

SCIA4165E

Revision: November 2006 AT-649 2006 Altima

 DISASSEMBLY
[RE5F22A]
38. Remove oil reservoir plate.

SCIA4166E

39. Remove oil cleaner magnets from oil reservoir plate.

SCIA4167E

40. Remove differential gear assembly.

SCIA4168E

41. Remove oil strainer sub assembly.

SCIA4169E

42. Remove oil reservoir plate.

SCIA4170E

Revision: November 2006 AT-650 2006 Altima

 DISASSEMBLY
[RE5F22A]
43. Remove tube clamp.
A

AT

SCIA4171E
D
44. Remove U/D brake apply tube sub assembly using suitable tool.
CAUTION:
● Do not bend or damage U/D brake apply tube sub assem- E
bly.
● Do not damage transaxle case.

G
SCIA4172E

45. Disconnect manual detent spring sub assembly from manual H

valve lever sub assembly using suitable tool.

SCIA4174E
K

46. Remove manual valve lever sub assembly from parking lock rod
sub assembly. L

SCIA4175E

47. Remove parking lock rod sub assembly.

SCIA4176E

Revision: November 2006 AT-651 2006 Altima

 DISASSEMBLY
[RE5F22A]
48. Remove bolts for manual detent spring sub assembly.
Bolt symbol Length mm (in) Number of bolts
A 16.7 (0.657) 1
B 14.0 (0.551) 1

SCIA4177E

49. Remove manual detent spring sub assembly.

SCIA4178E

50. Remove parking lock pawl shaft and torsion spring No.1.

SCIA4179E

51. Remove parking lock pawl bracket and parking lock pawl.

WCIA0420E

52. Remove parking lockpin sub assembly.

SCIA4181E

Revision: November 2006 AT-652 2006 Altima

 DISASSEMBLY
[RE5F22A]
53. Remove spring guide sleeve and torsion spring No.2.
A

AT

SCIA4182E
D
54. Remove manual valve oil seal using suitable tool.
CAUTION:
● Do not reuse oil seal. E
● Do not damage transaxle case.

G
SCIA4183E

55. Remove thrust needle roller bearing and thrust bearing race H
from U/D gear assembly.

WCIA0338E K

56. Remove U/D gear assembly.

57. Remove seal rings from U/D gear assembly. L

SCIA4185E

58. Remove U/D clutch assembly.

SCIA4186E

Revision: November 2006 AT-653 2006 Altima

 DISASSEMBLY
[RE5F22A]
59. Remove anchor bolt.

SCIA4193E

60. Remove U/D brake band assembly.

CAUTION:
Do not damage transaxle case.

SCIA4187E

61. Remove U/D RR planetary carrier assembly and thrust bearing

races.

SCIA5505E

62. Remove U/D RR planetary ring gear sub assembly.

63. Remove thrust needle roller bearing adjust shims and thrust
bearing race from U/D RR planetary ring gear sub assembly.

WCIA0339E

64. Remove snap ring using suitable tool.

SCIA4190E

Revision: November 2006 AT-654 2006 Altima

 DISASSEMBLY
[RE5F22A]
65. Remove U/D brake damper assembly.
66. Remove O-rings from U/D brake damper assembly. A
CAUTION:
Do not reuse O-rings.
B

AT

SCIA4191E
D
67. Remove U/D brake piston assembly and compression spring.
68. Remove O-ring from U/D brake piston assembly.
CAUTION: E
Do not reuse O-ring.

G
SCIA4192E

69. Remove transaxle case cover bolts from transaxle case. H

Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 8
I
B 45 (1.77) 2
C 48 (1.89) 2
D* — 1 J
*:Stud bolt

SCIA4194E K

WCIA0340E

70. Remove the transaxle case cover using suitable tool.

CAUTION:
Do not damage transaxle case cover.

SCIA4196E

Revision: November 2006 AT-655 2006 Altima

 DISASSEMBLY
[RE5F22A]
71. Remove transaxle case cover.

SCIA4197E

72. Remove governor apply gaskets from transaxle case.

CAUTION:
Do not reuse gaskets.

SCIA4198E

73. Remove tube clamp.

SCIA4199E

74. Remove transaxle lube apply tube using suitable tool.

CAUTION:
● Do not bend or damage transaxle lube apply tube.

● Do not damage transaxle case.

SCIA4200E

Revision: November 2006 AT-656 2006 Altima

 DISASSEMBLY
[RE5F22A]
75. Remove forward and direct clutch assembly.
76. Remove thrust bearing race, thrust needle roller bearing and A
seal ring from forward and direct clutch assembly.
CAUTION:
Do not reuse seal ring. B

AT

WCIA0384E

D
77. Remove planetary sun gear sub assembly and thrust needle
roller bearings.
E

G
SCIA5499E

78. Measure the inner diameter of planetary sun gear sub assembly
H
bushing using bore gauge.
CAUTION:
Measure at different places and take an average. If it is
greater than the maximum, replace it with a new planetary I
sun gear sub assembly.
Standard :22.200 - 22.226mm (0.8740 - 0.8750in)
J
Allowable limit :22.276 (0.8770in)

SCIA4255E
K

SCIA4256E

79. Remove RR planetary ring gear assembly.

80. Remove thrust needle roller bearing and thrust bearing race
from RR planetary ring gear assembly.

SCIA4203E

Revision: November 2006 AT-657 2006 Altima

 DISASSEMBLY
[RE5F22A]
81. Remove planetary gear assembly.
82. Remove thrust bearing race from planetary gear assembly.

SCIA4204E

83. Measure the inner diameter of planetary gear assembly bushing

using bore gauge
CAUTION:
Measure at different places and take an average. If it is
greater than the maximum, replace it with a new planetary
gear assembly.
Standard :30.056 - 30.082mm (1.1833 - 1.1843in)
Allowable limit :30.132 (1.1863in)

SCIA4254E

84. Remove thrust bearing.

SCIA4205E

85. Remove snap ring using suitable tool.

SCIA4206E

86. Remove 1st and reverse brake flanges, 1st and reverse brake
discs and 1st and reverse brake plates.
● INSPECTION

– Check that the sliding surface of discs are not worn and burnt.
If necessary, replace them.
CAUTION:
Soak new discs for at least 2 hours in A/T fluid.

SCIA4207E

Revision: November 2006 AT-658 2006 Altima

 DISASSEMBLY
[RE5F22A]
87. Remove FR planetary ring gear assembly with one-way clutch
No. 2. A

AT

SCIA4208E
D
88. Make sure that the FR planetary ring gear assembly turns freely
counterclockwise and locks clockwise.
E

G
SCIA4414E

89. Remove snap ring using suitable tool. H

SCIA4209E K

90. Remove return spring.

L

SCIA4210E

91. While pushing the piston by hand, apply compressed air (4Kg/
cm2 ) into the oil passage of transaxle case as shown and
remove 1st and reverse brake piston.

SCIA4211E

Revision: November 2006 AT-659 2006 Altima

 DISASSEMBLY
[RE5F22A]
92. Remove O-rings from 1st and reverse brake piston.
CAUTION:
Do not reuse O-rings.

SCIA4212E

93. Remove thrust bearing and thrust bearing race from counter
drive gear sub assembly.

SCIA4213E

94. Remove snap ring using suitable tool.

SCIA4214E

95. Remove counter drive gear sub assembly.

SCIA4215E

96. Remove differential side oil seal from transaxle case and tran-
saxle housing using suitable tool.
CAUTION:
● Do not reuse oil seals.

● Do not scratch transaxle case and transaxle housing.

SCIA4216E

Revision: November 2006 AT-660 2006 Altima

 DISASSEMBLY
[RE5F22A]

AT

SCIA4217E

97. Remove outer race and adjust shim from transaxle case using D
Tool.
Tool number : ST30612000 (J-25742-2)
E

G
SCIA5360E

98. Remove thrust roller bearing from transaxle housing using Tool.
Tool number : ST33290001 (J-34286) H
CAUTION:
Do not reuse thrust roller bearing.
I

SCIA5361E

Revision: November 2006 AT-661 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
REPAIR FOR COMPONENT PARTS PFP:00000

Oil Pump, 2nd Coast Brake & 2nd Brake ECS009JO

COMPONENTS

SCIA4384E

1. Return spring 2. Snap ring 3. O-ring

4. Oil seal 5. Oil pump assembly 6. 2nd brake piston
7. 2nd brake sleeve 8. O-ring 9. 2nd brake flange
10. 2nd brake plate 11. 2nd brake disc 12. Snap ring
13. 2nd coast brake piston 14. Return spring 15. Thrust washer
16. 2nd coast brake flange 17. 2nd coast brake plate 18. Snap ring
19. 2nd coast brake disc 20. Snap ring

DISASSEMBLY
1. Remove oil seal from oil pump assembly using suitable tool.
CAUTION:
● Do not reuse oil seal.

● Do not scratch oil pump assembly.

SCIA4396E

Revision: November 2006 AT-662 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
2. Remove thrust washer from oil pump assembly.
A

AT

SCIA4218E

D
3. Remove snap ring using suitable tool.

G
SCIA4219E

4. Remove 2nd coast brake flange, 2nd coast brake disc and 2nd
H
coast brake plate.

SCIA4220E
K
5. Compress return spring with a press using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87) L
6. Remove snap ring using suitable tool.

SCIA5362E

7. Remove return spring.

SCIA4222E

Revision: November 2006 AT-663 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
8. While pushing the 2nd coast brake piston by hand, apply com-
pressed air (4kg/cm2 ) into the oil passage as shown and
remove 2nd coast brake piston.
CAUTION:
Do not damage the O-ring and 2nd coast brake piston.
9. Remove O-rings from 2nd coast brake piston.
CAUTION:
Do not reuse O-rings.

SCIA4223E

10. Remove snap ring using suitable tool.

SCIA4224E

11. Remove 2nd brake flange, 2nd brake discs and 2nd brake
plates.

SCIA4225E

12. Remove return spring.

SCIA4226E

13. Remove snap ring using suitable tool.

CAUTION:
Do not damage oil pump assembly and 2nd brake piston.

SCIA4227E

Revision: November 2006 AT-664 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
14. While pushing the 2nd brake piston by hand, apply compressed
air (4kg/cm2 ) into the oil passage as shown and remove 2nd A
brake piston (With 2nd brake sleeve).
CAUTION:
Do not damage 2nd brake piston and 2nd brake sleeve. B
15. Remove O-rings from 2nd brake piston and 2nd brake sleeve.
CAUTION:
Do not reuse O-rings. AT

SCIA4228E
D
INSPECTION
● Check that the sliding surface of disc and plate is not worn or burnt. If the disc or plate is worn or burnt,
replace it E
CAUTION:
Soak new clutch discs for at least 2 hours in ATF.
F
ASSEMBLY
1. Install new O-rings in 2nd brake sleeve and 2nd brake piston.
CAUTION: G
● Do not reuse O-ring.

● Apply ATF to new O-ring.

2. Coat the inner surfaces of oil pump assembly with ATF. H

3. Press 2nd brake piston and 2nd brake sleeve into oil pump
assembly.
I

SCIA4229E

J
4. Install snap ring using suitable tool.
CAUTION:
Do not damage oil pump assembly. K

M
SCIA4227E

5. Place return spring on 2nd brake piston with the spring side up.

SCIA4226E

Revision: November 2006 AT-665 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
6. Install 2nd brake flange, 2nd brake discs and 2nd brake plates.

SCIA4225E

7. Install snap ring using suitable tool.

SCIA4224E

8. Install new O-rings in 2nd coast brake piston.

CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings.

9. Coat the inner surfaces of oil pump assembly with ATF.

10. Press 2nd coast brake piston into oil pump assembly.

SCIA4230E

11. Install return spring.

SCIA4222E

12. Compress return spring using Tool.

Tool number : KV31102400 (J-34285 and J-34285-87)
13. Install snap ring using suitable tool.

SCIA5362E

Revision: November 2006 AT-666 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
14. Install 2nd coast brake flange, 2nd coast brake disc and 2nd
coast brake plate. A

AT

SCIA4220E
D
15. Compress return spring with a press using Tool.
Tool number : KV31102400 (J-34285 and J-34285-87)
E
16. Install snap ring using suitable tool.

G
SCIA5363E

17. Set a dial indicator as shown. H

2
18. When applying compressed air (4Kg/cm ) into the oil passage
as shown, measure 2nd brake piston stroke and check 2nd
brake piston moves smoothly. I
Piston stroke :1.10 - 1.50mm (0.0433 - 0.0591in)
If 2nd brake piston stroke is out standards, select another
flange. Refer to AT-705, "2ND BRAKE" . J

SCIA5501E K

19. Set a dial indicator as shown.

20. When applying compressed air (4Kg/cm2 ) into the oil passage L
as shown, measure 2nd coast brake piston stroke and check
2nd coast brake piston moves smoothly.
Piston stroke :0.76 - 1.44mm (0.0299 - 0.0567in) M

SCIA4233E

21. Install thrust washer facing the flat surface up.

CAUTION:
Apply petroleum jelly to thrust washer.

SCIA4218E

Revision: November 2006 AT-667 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
22. Install new oil seal into oil pump assembly until it is flush with the
oil pump face using Tool.
Tool number : ST30720000 (J-25405)
CAUTION:
● Do not reuse oil seal.
● Apply ATF to new oil seal.

SCIA5364E

One-Way Clutch Outer Race Sub Assembly & 2nd Coast Brake Hub & One-Way
Clutch No.1 ECS009JP

COMPONENTS

SCIA4234E

1. Thrust washer 2. One-way clutch outer race sub assembly 3. One-way clutch No.1
4. Thrust washer 5. 2nd coast brake hub

DISASSEMBLY
1. Remove thrust washer from one-way clutch outer race sub
assembly.

SCIA4235E

Revision: November 2006 AT-668 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
2. Remove 2nd coast brake hub from one-way clutch outer race
sub assembly. A
3. Remove thrust washer from 2nd coast brake hub.

AT

SCIA4236E
D
4. Remove one-way clutch No.1 from one-way clutch outer race
sub assembly.
E

G
SCIA4237E

ASSEMBLY H
1. Install one-way clutch No.1 into the one-way clutch outer race
sub assembly.
CAUTION: I
Take care with the direction of one-way clutch No.1.

K
SCIA4238E

2. Install thrust washer into 2nd coast brake hub. L

CAUTION:
● Coat the thrust washer with grease.

● Align the tab of the washer with the hollow of the 2nd M
coast brake hub.
3. Install 2nd coast brake hub into one-way clutch outer race sub
assembly.
NOTE:
While turning the 2nd coast brake hub, slide it into one-way
clutch outer race sub assembly. SCIA4236E

Revision: November 2006 AT-669 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
4. Coat the thrust washer with petroleum jelly. Align the tab of the
washer with the hollow of the one-way clutch outer race sub
assembly.
CAUTION:
Apply petroleum jelly to thrust washer.

SCIA4235E

INSPECTION
● Hold one-way clutch outer race sub assembly, and check that
2nd coast brake hub turns freely clockwise and locks counter-
clockwise.

SCIA4239E

Transaxle Case Cover & B5 Brake ECS009JQ

COMPONENTS

SCIA5441E

Revision: November 2006 AT-670 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
1. Transaxle case cover 2. Seal ring 3. O-ring
4. Return spring 5. Snap ring 6. B5 brake piston
A
7. Seal ring 8. Bearing race 9. U/D clutch apply tube sub assembly
10. Tube clamp 11. Forward clutch accumulator piston 12. Compression spring
B
13. Accumulator cover 14. O-ring 15. Seal ring
16. B5 brake cushion plate 17. B5 brake plate 18. B5 brake flange
19. Snap ring 20. B5 brake disc
AT
DISASSEMBLY
1. Remove tube clamps.
D

SCIA5502E

G
2. Remove U/D clutch apply tube sub assembly using suitable tool.
CAUTION:
Do not damage the U/D clutch apply tube sub assembly and H
transaxle case cover.

J
SCIA4241E

3. Remove bearing race and seal rings from transaxle case cover.
K
CAUTION:
Do not reuse seal rings.
L

WCIA0386E

4. Remove accumulator cover, compression spring and forward

clutch accumulator piston.
5. Remove O-ring from the accumulator cover.
CAUTION:
Do not reuse O-ring.
6. Remove seal ring from the forward clutch accumulator piston.
CAUTION:
Do not reuse seal ring.

SCIA4243E

Revision: November 2006 AT-671 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
7. Remove snap ring using suitable tool.

SCIA4244E

8. Remove B5 brake flange, B5 brake discs, B5 brake plates and

B5 brake cushion plate.

SCIA4245E

9. Compress return spring with a press using Tool.

Tool number : KV31102400 (J-34285 and J-34285-87)
CAUTION:
Do not press return spring too much to avoid deformation.
10. Remove snap ring using suitable tool.

SCIA5365E

11. Remove return spring.

SCIA4247E

12. While pushing B5 brake piston by hand, apply compressed air

(4Kg/cm2 ) into the oil passage as shown and remove B5 brake
piston.

SCIA4248E

Revision: November 2006 AT-672 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
13. Remove O-rings from B5 brake piston.
CAUTION: A
Do not reuse O-rings.
14. Remove seal ring from transaxle case cover.
B
CAUTION:
Do not reuse seal ring.

AT

SCIA4249E
D
INSPECTION
● Check that the sliding surface of disc and plate is not worn or burnt. If the disc or plate is worn or burnt,
replace it E
CAUTION:
Soak new clutch discs for at least 2 hours in ATF.
F
ASSEMBLY
1. Install new seal ring in transaxle case cover.
CAUTION: G
● Do not reuse seal ring.

● Apply ATF to new seal ring.

2. Install new O-rings in B5 brake piston. H

CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings. I

3. Coat the inner surface of transaxle case cover with ATF.
4. Press B5 brake piston into the transaxle case cover. SCIA4249E

J
5. Place return spring on B5 brake piston.

M
SCIA4247E

6. Compress return spring with a press using Tool.

Tool number : KV31102400 (J-34285 and J-34285-87)
CAUTION:
Do not press return spring too much to avoid deformation.
7. Install snap ring using suitable tool.

SCIA5365E

Revision: November 2006 AT-673 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
8. Install B5 brake cushion plate.
CAUTION:
Take care with direction of B5 brake cushion plate.
9. Install B5 brake flange, B5 brake plates and B5 brake discs as
shown.

SCIA4245E

10. Install snap ring using suitable tool.

SCIA4244E

11. Install new O-ring in accumulator cover.

CAUTION:
● Do not reuse O-ring.

● Apply ATF to new O-ring.

12. Install new seal ring in forward clutch accumulator piston.

CAUTION:
● Do not reuse seal ring.

● Apply ATF to new seal ring.

13. Install forward clutch accumulator piston, compression spring

and accumulator cover in transaxle case cover. SCIA4243E

14. Tighten accumulator cover torx bolts to specified torque. Refer

to AT-670, "COMPONENTS" .

15. Install new seal rings and bearing race in transaxle case cover.
Refer to AT-678, "ASSEMBLY" to select proper bearing race.
CAUTION:
● Do not reuse seal rings.

● Apply ATF to new O-rings.

WCIA0386E

Revision: November 2006 AT-674 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
16. Install the U/D clutch apply tube sub assembly using suitable
tool. A

AT

SCIA4252E

D
17. Tighten tube clamp bolts to specified torque. Refer to AT-670,
"COMPONENTS" .
E

G
SCIA5502E

18. Set a dial indicator as shown.

H
19. When applying compressed air (4kg/cm2 ) into the oil passage
as shown, measure the B5 brake piston stroke and check the B5
brake piston moves smoothly. I
Piston stroke :2.34 - 2.70mm (0.0921 - 0.1063in)
If the B5 brake piston stroke is out standards, select another
flange. Refer to AT-706, "B5 BRAKE" . J

SCIA5503E
K
Differential Gear Assembly ECS009JR

COMPONENTS
L

SCIA4407E

Revision: November 2006 AT-675 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
1. O-ring 2. Tapered roller bearing 3. Differential gear assembly
4. Tapered roller bearing 5. O-ring

DISASSEMBLY
1. Remove O-rings from differential gear assembly.
CAUTION:
Do not reuse O-rings.

SCIA4408E

2. Remove tapered roller bearings using Tool.

Tool number : ST33081000 (J-8107-2)
CAUTION:
Do not reuse tapered roller bearings.

SCIA5366E

Revision: November 2006 AT-676 2006 Altima

 REPAIR FOR COMPONENT PARTS
[RE5F22A]
ASSEMBLY
1. Install new tapered roller bearings in differential gear assembly A
using Tool.
Tool number : KV38100500 ( — )
B
: ST33720000 (J-25405)
CAUTION:
Do not reuse tapered roller bearings.
AT

SCIA5368E

H
2. Install new O-rings in differential gear assembly.
CAUTION:
● Do not reuse O-rings.
I
● Apply ATF to new O-rings.

K
SCIA4408E

Revision: November 2006 AT-677 2006 Altima

 ASSEMBLY
[RE5F22A]
ASSEMBLY PFP:00000

Assembly (1) ECS009JS

1. Install new differential side oil seal into transaxle case as speci-
fied using Tool.
Tool number : ST33400001 (J-26082)

Distance : 3.0 - 4.0 mm (0.118 - 0.157 in)

CAUTION:
● Do not reuse differential side oil seal.
● Apply ATF to new differential side oil seal.

SCIA5369E

SCIA4473E

2. Install counter drive gear sub assembly.

SCIA4215E

3. Install snap ring using suitable tool.

SCIA4214E

Revision: November 2006 AT-678 2006 Altima

 ASSEMBLY
[RE5F22A]
4. Install new O-rings in 1st and reverse brake piston.
CAUTION: A
● Do not reuse O-rings.

● Apply ATF to new O-rings.

5. Coat the inner surface of transaxle case with ATF. B

6. Install 1st and reverse brake piston in transaxle case.

AT

SCIA4212E

D
7. Put return spring on 1st and reverse brake piston.

G
SCIA4210E

8. Install the snap ring into groove using suitable tool while com-
H
pressing the return spring by hand.

SCIA4209E
K
9. Put thrust bearing race and thrust bearing on counter drive gear
sub assembly.
CAUTION: L
Apply petroleum jelly to thrust bearing and thrust bearing
race.
M

SCIA4213E

10. Install FR planetary ring gear assembly with one-way clutch

No.2.

SCIA4208E

Revision: November 2006 AT-679 2006 Altima

 ASSEMBLY
[RE5F22A]
11. Install 1st and reverse brake flanges, 1st and reverse brake
discs and 1st and reverse brake plates.

SCIA4207E

12. Install snap ring using suitable tool.

SCIA4206E

13. Set a dial indicator as shown.

14. Applying compressed air (4Kg/cm2 ) and measure the 1st and
reverse brake piston stroke.
Piston stroke : 1.39 - 2.21 mm (0.0547 - 0.0870 in)
In a case that is out of reference, check the following items:
● Oil pressure leak

● Damage of O-ring

● Wear damage of disc

SCIA4258E

15. Install thrust bearing.

CAUTION:
Apply petroleum jelly to thrust bearing.

SCIA4205E

16. Install planetary gear assembly.

17. Install thrust bearing race in planetary gear assembly.
CAUTION:
Apply petroleum jelly to thrust bearing race.

SCIA4204E

Revision: November 2006 AT-680 2006 Altima

 ASSEMBLY
[RE5F22A]
18. Install thrust needle roller bearing and thrust bearing race in RR
planetary ring gear assembly. A
CAUTION:
Apply petroleum jelly to thrust needle roller bearing.
19. Install RR planetary ring gear assembly. B

AT

SCIA4203E

D
20. Install planetary sun gear sub assembly and thrust needle roller
bearing.
CAUTION: E
Apply petroleum jelly to thrust needle roller bearing.

G
SCIA5499E

21. Install forward and direct clutch assembly.

H
22. Install thrust bearing race, thrust needle roller bearing and new
seal ring in forward and direct clutch assembly.
CAUTION: I
● Do not reuse seal ring.

● Apply ATF to new seal ring.

● Apply petroleum jelly to thrust needle roller bearing and

J
thrust bearing race.

WCIA0384E
K
23. Check the distance of “A”.
Dimension “A” : 50.850 - 51.825 mm L
(2.0020 - 2.0404 in)
CAUTION:
If the distance is out of standards, adjust within standards M
again.

SCIA4259E

24. Install transaxle lube apply tube using suitable tool.

CAUTION:
Do not bend and damage transaxle lube apply tube.

SCIA4260E

Revision: November 2006 AT-681 2006 Altima

 ASSEMBLY
[RE5F22A]
25. Tighten tube clamp bolt to specified torque. Refer to AT-634,
"Components" .

SCIA4199E

26. Install new governor apply gaskets in transaxle case.

CAUTION:
● Do not reuse gaskets.

● Apply petroleum jelly to new gaskets.

SCIA4198E

27. Install transaxle case cover in transaxle case.

SCIA4197E

28. Tighten transaxle case cover bolts to specified torque. Refer to

AT-634, "Components" .
CAUTION:
Do not reuse seal bolts.
Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 8
B 45 (1.77) 2
C 48 (1.89) 2
D* — 1 SCIA4194E

*:Stud bolt

WCIA0340E

Revision: November 2006 AT-682 2006 Altima

 ASSEMBLY
[RE5F22A]

29. Tighten anchor bolt to specified torque. Refer to AT-634, "Com- A

ponents" .

AT

SCIA4193E
D
30. Install new O-ring in U/D brake piston assembly.
CAUTION:
E
● Do not reuse O-ring.

● Apply ATF to new O-ring.

31. Coat the inner surface of transaxle case with ATF.

F
32. Install compression spring and U/D brake piston assembly.

SCIA4192E

33. Install new O-rings in U/D brake damper assembly. H

CAUTION:
● Do not reuse O-rings.

● Apply ATF to new O-rings. I

34. Install U/D brake damper assembly.

SCIA4191E
K

35. Install snap ring using suitable tool.

CAUTION: L
If the snap ring is deformed, replace it.

SCIA4190E

36. Install thrust needle roller bearing adjust shim and thrust bearing
race in U/D RR planetary ring gear sub assembly.
CAUTION:
Apply petroleum jelly to adjust shim, thrust needle roller
bearing and thrust bearing race.
37. Install U/D RR planetary ring gear sub assembly.

WCIA0339E

Revision: November 2006 AT-683 2006 Altima

 ASSEMBLY
[RE5F22A]
38. Install U/D RR planetary carrier assembly and thrust bearing
races.
CAUTION:
Apply petroleum jelly to bearing races.

SCIA5505E

39. Install U/D brake band assembly.

SCIA4187E

40. Install U/D clutch assembly.

SCIA4186E

41. Measure the U/D brake piston stroke applying and releasing the
compressed air (4Kg/cm2 ) as shown.
CAUTION:
Measure U/D brake piston stroke after assembling U/D
clutch assembly.
Piston Stroke : 5.76 - 6.76 mm (0.2268 - 0.2661 in)

SCIA4263E

SCIA4625E

Revision: November 2006 AT-684 2006 Altima

 ASSEMBLY
[RE5F22A]
42. If the piston stroke is out of standards, select another U/D brake
piston. Refer to AT-706, "U/D BRAKE" . A

AT

SCIA4264E

D
Adjustment ECS009JT

ADJUST PRELOAD OF TAPERED ROLLER BEARING

1. Install adjust shim and outer race in transaxle case using Tool.
E
Tool number : KV40100621 (J-25273)
: ST30022000 ( — )
F

SCIA5370E
H
2. Install differential gear assembly in transaxle case.
3. Install transaxle housing into transaxle case.
I

K
SCIA4265E

4. Tighten transaxle housing and transaxle case bolts to specified L

torque. Refer to AT-634, "Components" .
CAUTION:
Use old self-sealing bolts during preload checking and M
adjustment procedures.
Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 13
B 35 (1.38) 2
C 45 (1.77) 1
SCIA4267E

D* — 1

Revision: November 2006 AT-685 2006 Altima

 ASSEMBLY
[RE5F22A]
*:Torx bolt

SCIA5495E

5. Measure turning torque of differential gear assembly using Tool.

Tool number : KV40102500 (J-28815)
: ST3127S000 (J-25765-A)
6. Turn differential gear assembly in both directions several times
to seat bearing rollers correctly.
Turning torque : 0.7 - 1.2 N·m
(New bearing) (0.08 - 0.12kg-m, 7 - 10 in-lb)
If the preload is not within specification, remove differential gear
assembly from transaxle case. Re-select adjust shim. Refer to SCIA5371E

AT-707, "DIFFERENTIAL SIDE BEARING ADJUSTING SHIMS"

.
Assembly (2) ECS009JU

1. Remove transaxle housing and differential gear assembly from transaxle case.
2. Install U/D clutch assembly.

SCIA4186E

3. Install new seal rings in U/D gear assembly.

CAUTION:
● Do not reuse seal rings.

● Apply ATF to new seal rings.

4. Install U/D gear assembly.

SCIA4185E

Revision: November 2006 AT-686 2006 Altima

 ASSEMBLY
[RE5F22A]
5. Install thrust needle roller bearing and thrust bearing race in U/D
gear assembly. A
CAUTION:
Apply petroleum jelly to thrust needle roller bearing and
thrust bearing race. B

AT

WCIA0338E

D
a. Make sure that measurement ″E″ is within the specifications.
Specification ″E″ : 1.269 - 1.645 mm
E
(0.0500 - 0.0648 in)

G
SCIA5452E

● ″E″ is the height between the edge of the transaxle case and H
the roller part of thrust needle roller bearing.

SCIA5459E
K

b. If measurement ″E″ is outside the specification, replace ″T″ with

one that has applicable thickness. Refer to AT-707, "U/D GEAR L
ASSEMBLY" .
CAUTION:
When adjusting ″T″, use ″S″ of thickness 0.81 mm (0.32 in).
M
c. If all of ″T″ do not fit ″E″ within the specifications, replace ″S″
with one that has applicable thickness. Refer to AT-707, "U/D
RR PLANETARY RING GEAR SUB ASSEMBLY" .
CAUTION:
When adjusting ″S″, use ″T″ of thickness 0.80 mm (0.31 in).

SCIA5488E

Revision: November 2006 AT-687 2006 Altima

 ASSEMBLY
[RE5F22A]
d. Make sure that measurement ″E″ is within specifications.

SCIA5452E

6. Install new manual valve oil seal into transaxle case until it is
flush with the transaxle case face using Tool.
Tool number : ST33061000 (J-8107-2)
CAUTION:
● Do not reuse manual valve oil seal.
● Apply ATF to new manual valve oil seal.

SCIA5486E

7. Install spring guide sleeve and torsion spring No.2 in transaxle

case.
8. Tighten spring guide sleeve and torsion spring No.2 torx bolt to
specified torque. Refer to AT-634, "Components" .

SCIA4182E

9. Install parking lockpin sub assembly.

SCIA4181E

10. Install parking lock pawl bracket and parking lock pawl.

WCIA0420E

Revision: November 2006 AT-688 2006 Altima

 ASSEMBLY
[RE5F22A]
11. Install parking lock pawl shaft and torsion spring No.1.
A

AT

SCIA4179E
D
12. Install manual detent spring sub assembly.

G
SCIA4178E

13. Temporarily tighten the bolts. H

Bolt symbol Length mm (in) Number of bolts
A 16.7 (0.657) 1
I
B 14.0 (0.551) 1

SCIA4177E K

14. Install parking lock rod sub assembly.

L

SCIA4176E

15. Install manual valve lever sub assembly connect parking lock
rod sub assembly to it.

SCIA4175E

Revision: November 2006 AT-689 2006 Altima

 ASSEMBLY
[RE5F22A]
16. Connect manual detent spring sub assembly to manual valve
lever sub assembly using suitable tool.

SCIA4174E

17. Tighten manual detent spring sub assembly bolts to specified

torque. Refer to AT-634, "Components" .

SCIA4550E

18. Install U/D brake apply tube sub assembly using suitable tool.
CAUTION:
Do not damage U/D brake apply tube sub assembly.

SCIA4270E

19. Tighten tube clamp bolts to specified torque. Refer to AT-634,

"Components" .

SCIA4171E

20. Install oil reservoir plate in transaxle case.

21. Tighten oil reservoir plate bolts to specified torque. Refer to AT-
634, "Components" .

SCIA4170E

Revision: November 2006 AT-690 2006 Altima

 ASSEMBLY
[RE5F22A]
22. Install oil strainer sub assembly in transaxle case.
23. Tighten oil strainer sub assembly bolt to specified torque. Refer A
to AT-634, "Components" .

AT

SCIA4169E
D
24. Install differential gear assembly.

G
SCIA4168E

25. Install new differential side oil seal into transaxle housing as H
specified using Tool.
Tool number : ST33400001 (J-26082)
I
Distance : 14.8 - 15.8 mm (0.583 - 0.622 in)
CAUTION:
● Do not reuse differential side oil seal. J
● Apply ATF to new differential side oil seal.

SCIA5372E K

SCIA4474E

26. Install new thrust roller bearing in transaxle housing using Tool.
Tool number :ST30720000 (J-25405)
CAUTION:
Do not reuse thrust roller bearing.

SCIA5373E

Revision: November 2006 AT-691 2006 Altima

 ASSEMBLY
[RE5F22A]
27. Install oil cleaner magnets on oil reservoir plate.

SCIA4167E

28. Install oil reservoir plate in transaxle housing.

29. Tighten oil reservoir plate bolts to specified torque. Refer to AT-
634, "Components" .

SCIA4166E

30. Install differential gear lube apply tube using suitable tool.
CAUTION:
Do not bend or damage differential gear lube apply tube.

SCIA4272E

31. Tighten tube clamp bolt to specified torque. Refer to AT-634,

"Components" .

SCIA4164E

32. Install new governor apply gasket.

CAUTION:
● Do not reuse governor apply gasket.

● Apply petroleum jelly to new governor apply gasket.

33. Install new seal ring.

CAUTION:
● Do not reuse seal ring.

● Apply ATF to new seal ring.

SCIA4163E

Revision: November 2006 AT-692 2006 Altima

 ASSEMBLY
[RE5F22A]
34. Apply Liquid Gasket (Three Bond 1281B) or equivalent to tran-
saxle housing as shown. Refer to GI-45, "Recommended Chem- A
ical Products and Sealants" .
CAUTION:
Completely remove all moisture, oil and sealant from tran- B
saxle housing and transaxle case.

AT

WCIA0529E
D
35. Install transaxle housing in transaxle case.

G
SCIA4160E

36. Tighten transaxle housing bolts to specified torque. Refer to AT- H

634, "Components" .
CAUTION:
Do not reuse seal bolt. I
Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 13
J
B 35 (1.38) 2
C 45 (1.77) 1
D* — 1 SCIA5495E K
*:Torx bolt
37. Install new oil seal into oil pump assembly until it is flush with oil
pump face using Tool. L
Tool number : ST30720000 (J-25405)
CAUTION: M
● Do not reuse oil seal.

● Apply ATF to new oil seal.

SCIA5364E

Revision: November 2006 AT-693 2006 Altima

 ASSEMBLY
[RE5F22A]
38. Install thrust washer and one- way clutch outer race sub assem-
bly in oil pump assembly.
CAUTION:
Apply petroleum jelly to thrust washer.

SCIA4274E

39. Check the distance of “B”.

“B” : 51.09 - 51.71 mm (2.0114 - 2.0358 in)
CAUTION:
If the distance is out of standards, adjust within standards
again.

SCIA4275E

40. Place oil pump assembly through the input shaft in horizontal
position, and align the bolt holes of the oil pump assembly with
transaxle case. Lightly press oil pump assembly.
CAUTION:
Do not drop one-way clutch outer race sub assembly.

SCIA4276E

41. Tighten oil pump assembly bolts to specified torque. Refer to AT-
634, "Components" .

SCIA4156E

SCIA4157E

Revision: November 2006 AT-694 2006 Altima

 ASSEMBLY
[RE5F22A]
42. Set a dial indicator as shown, move the input shaft and measure
the end play. A
End play : 0.188 - 0.570 mm (0.0074 - 0.00224 in)

AT

SCIA4277E

D
If end play is out of standards, select another thrust bearing race.
Refer to AT-706, "FORWARD AND DIRECT CLUTCH ASSEMBLY" .
E

G
WCIA0386E

43. Remove transaxle case cover. H

44. Apply Liquid Gasket (Three Bond 1281B) or equivalent to tran-
saxle case cover as shown. Refer to GI-45, "Recommended
Chemical Products and Sealants" . I
CAUTION:
Completely remove all moisture, oil and sealant from tran-
saxle case cover and transaxle. J

WCIA0530E
K

45. Install transaxle case cover in transaxle case.

L

SCIA4197E

46. Tighten transaxle case cover bolts to specified torque. Refer to

AT-634, "Components" .
CAUTION:
Do not reuse seal bolts.
Bolt symbol Length mm (in) Number of bolts
A 30 (1.18) 8
B 45 (1.77) 2

SCIA4194E

Revision: November 2006 AT-695 2006 Altima

 ASSEMBLY
[RE5F22A]
Bolt symbol Length mm (in) Number of bolts
C 48 (1.89) 2
D* — 1
*:Stud bolt

WCIA0340E

47. Install new governor apply gaskets.

CAUTION:
● Do not reuse governor apply gaskets.

● Apply petroleum jelly to new governor apply gaskets.

SCIA4154E

48. Install terminal cord assembly.

CAUTION:
● Do not break the solenoid connector and A/T fluid tem-
perature sensor.
● Apply ATF to O-ring.

WCIA0471E

49. While holding control valve assembly, connect the parking lock
rod sub assembly to manual valve lever sub assembly.
NOTE:
Shift position is “N”.

SCIA4153E

Revision: November 2006 AT-696 2006 Altima

 ASSEMBLY
[RE5F22A]
50. Tighten control valve assembly bolts to specified torque. Refer
to AT-634, "Components" . A
Bolt symbol Length mm (in) Number of bolts
A 55 (2.17) 2
B
B 50 (1.97) 2
C 16 (0.63) 2
AT

SCIA4152E

D
51. Install suction cover and new suction cover gasket in control
valve assembly.
CAUTION: E
Do not reuse suction cover gasket.

G
SCIA4149E

52. Tighten new suction cover bolts to specified torque. Refer to AT- H
634, "Components" .

SCIA4150E K

53. Install sensor clamp and A/T fluid temperature sensor in control
valve assembly. L

SCIA4147E

54. Tighten sensor clamp bolts to specified torque. Refer to AT-634,

"Components" .

SCIA4148E

Revision: November 2006 AT-697 2006 Altima

 ASSEMBLY
[RE5F22A]
55. Connect the solenoid connectors.

SCIA4146E

56. Apply Liquid Gasket (Three Bond 1281B) or equivalent to side

cover as shown. Refer to GI-45, "Recommended Chemical
Products and Sealants" .
CAUTION:
Completely remove all moisture, oil and sealant from side
cover and transaxle case.

SCIA5508E

57. Install side cover in transaxle case.

SCIA4143E

58. Tighten side cover torx bolts to specified torque. Refer to AT-
634, "Components" .
CAUTION:
Do not reuse seal bolt.

SCIA4144E

Revision: November 2006 AT-698 2006 Altima

 ASSEMBLY
[RE5F22A]
59. Install new O-rings in ATF cooler assembly.
CAUTION: A
● Do not reuse O-rings.

● Apply ATF to new O-rings.

B
60. Install ATF cooler assembly, washer and new spring washer.
CAUTION:
Do not reuse spring washer.
AT
61. Tighten hexagon bolt to specified torque. Refer to AT-634,
"Components" .
SCIA4142E
D
62. Install PNP switch to manual valve lever sub assembly.
63. Temporarily tighten the bolts.
E
Bolt symbol Length mm (in) Number of bolts
A 20 (0.79) 1
B 33 (1.30) 1 F

G
SCIA4141E

64. Install new washer plate and new lock washer. H

CAUTION:
Do not reuse washer plate and lock washer.
65. Tighten nut specified torque. Refer to AT-634, "Components" . I

SCIA4140E K

66. Install Tool.

Tool number : KV991J0060 (J-45404) L

67. Adjust PNP switch so that Tool pointer aligns with neutral base
line on PNP switch body.
M

SCIA5374E

68. Tighten PNP switch bolts to specified torque. Refer to AT-634,

"Components" .

SCIA4434E

Revision: November 2006 AT-699 2006 Altima

 ASSEMBLY
[RE5F22A]
69. Bend the lock washer using suitable tool.

SCIA4139E

70. Install range lever in manual valve lever sub assembly.

71. Tighten range lever nut to specified torque. Refer to AT-634,
"Components" .

SCIA4138E

72. Install turbine revolution sensor in transaxle case.

73. Tighten new turbine revolution sensor bolt to specified torque.
Refer to AT-634, "Components" .
CAUTION:
● Do not reuse seal bolt.

● Apply ATF to O-ring.

SCIA4137E

74. Install revolution sensor in transaxle case.

75. Tighten new revolution sensor bolt to specified torque. Refer to
AT-634, "Components" .
CAUTION:
● Do not reuse seal bolt.

● Apply ATF to O-ring.

SCIA4136E

76. Install new O-ring in A/T fluid charging pipe.

CAUTION:
● Do not reuse O-ring.

● Apply petroleum jelly to new O-ring.

77. Install A/T fluid charging pipe in transaxle housing.

78. Install A/T fluid cooler tube.
CAUTION:
Do not reuse copper washer.
79. Tighten A/T fluid cooler tube union to specified torque. Refer to
AT-634, "Components" . SCIA4135E

Revision: November 2006 AT-700 2006 Altima

 ASSEMBLY
[RE5F22A]
80. Install air breather hose.
81. Install A/T fluid level gauge. A
82. Install drain plug with new gasket to transaxle housing.
CAUTION:
Do not reuse drain plug gasket. B
83. Tighten drain plug to specified torque. Refer to AT-634, "Components" .
84. Install torque converter.
AT

SCIA4134E
F
85. Check the dimension of “C”.
Dimension “C” : 14.0 mm (0.55 in)
G
CAUTION:
If the distance is out of standards, adjust within standards
again.
H

I
SCIA4279E

Revision: November 2006 AT-701 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030

General Specifications ECS009JV

Engine VQ35DE
Automatic transaxle model RE5F22A
Automatic transaxle model code number 9J500 8Y100
Stall torque ratio 1.8: 1
1st 4.657
2nd 3.033
3rd 1.982
Transaxle gear ratio 4th 1.342
5th 1.018
Reverse 5.114
Final drive 2.269 2.440
Recommended fluid Genuine Nissan Matic K ATF*

Fluid capacity (US qt, Imp qt) 7.3 (7-3/4, 6-3/8)

CAUTION:
● Use only Genuine Nissan Matic K ATF. Do not mix with other fluid.

● Using automatic transaxle fluid other than Genuine Nissan Matic K ATF will deteriorate driveability and automatic tran-
saxle durability, and may damage the automatic transaxle, which is not covered by the warranty.
*: Refer to MA-12, "RECOMMENDED FLUIDS AND LUBRICANTS" .

Shift Schedule ECS009JW

VEHICLE SPEED WHEN SHIFTING GEARS - 9J500 MODELS

Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
D1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1
63 100 156 230 219 150 88 43
100 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 219 150 88 43
90 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 219 150 88 43
80 %
(39) (62) (97) (143) (136) (93) (55) (27)
63 100 156 230 208 149 86 43
70 %
(39) (62) (97) (143) (129) (93) (53) (27)
63 100 156 230 201 143 80 43
60 %
(39) (62) (97) (143) (125) (89) (50) (27)
63 95 145 214 187 130 73 43
50 %
(39) (59) (90) (133) (116) (81) (45) (27)
53 87 124 182 156 97 57 34
40 %
(33) (54) (77) (113) (97) (60) (35) (21)
39 68 95 134 112 62 37 20
30 %
(24) (42) (59) (83) (70) (39) (23) (12)
29 49 65 92 63 42 23 8
20 %
(18) (30) (40) (57) (39) (26) (14) (5)
20 31 41 58 47 34 23 8
10 %
(12) (19) (25) (36) (29) (21) (14) (5)

Revision: November 2006 AT-702 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
VEHICLE SPEED WHEN SHIFTING GEARS - 8Y100 MODELS
Vehicle speed km/h (MPH) (Approx.)
A
Accelerator angle
D1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1
58 93 144 213 203 139 81 40
100 % B
(36) (58) (89) (132) (126) (86) (50) (25)
58 93 144 213 203 139 81 40
90 %
(36) (58) (89) (132) (126) (86) (50) (25)
AT
58 93 144 213 203 139 81 40
80 %
(36) (58) (89) (132) (126) (86) (50) (25)
58 93 144 213 193 138 80 40
70 %
(36) (58) (89) (132) (120) (86) (50) (25)
D
58 93 144 213 186 133 75 40
60 %
(36) (58) (89) (132) (116) (83) (47) (25)
E
58 88 135 199 173 121 68 40
50 %
(36) (55) (84) (124) (108) (75) (42) (25)
49 80 115 169 145 90 53 31
40 % F
(30) (50) (71) (105) (90) (56) (33) (19)
36 63 88 124 103 58 34 19
30 %
(22) (39) (55) (77) (64) (36) (21) (12)
27 46 61 86 59 39 22 8
G
20 %
(17) (29) (38) (53) (37) (24) (14) (5)
19 29 38 53 44 32 22 8
10 % H
(12) (18) (24) (33) (27) (20) (14) (5)

VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP - 9J500 MOD-
ELS I
Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
Lock-up “ON” Lock-up “OFF”
J
50 % 230 (143) 207 (129)
15% 115 (71) 74 (46)
0-8% 70 (43) 67 (42) K
● Lock-up vehicle speed indicates the speed in D position.
● Perform lock-up inspection after warming up engine.
● Lock-up vehicle speed may vary depending on the driving conditions and circumstances. L
VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP - 8Y100 MOD-
ELS
M
Vehicle speed km/h (MPH) (Approx.)
Accelerator angle
Lock-up “ON” Lock-up “OFF”
50 % 213 (132) 192 (119)
15% 106 (66) 69 (43)
0-8% 65 (40) 62 (39)
● Lock-up vehicle speed indicates the speed in D position.
● Perform lock-up inspection after warming up engine.
● Lock-up vehicle speed may vary depending on the driving conditions and circumstances.

Stall Speed ECS009JX

Stall speed 2,430 - 2,730 rpm

Revision: November 2006 AT-703 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
Line Pressure ECS009JY

Line pressure kPa (kg/cm2 , psi)

Engine speed
D, M positions R position
At idle speed 333 - 392 (3.4 - 4.0, 48 - 57) 500 - 608 (5.1 - 6.2, 73 - 88)
At stall speed 1,285 - 1,393 (13.1 - 14.2, 186 - 202) 1,706 - 1,981 (17.4 - 20.2, 247 - 287)

Time Lag ECS009JZ

Selector lever Time

N to D position Less than 0.7 sec.
N to R position Less than 1.2 sec.

Shift Solenoid Valves ECS009K0

Shift solenoid valve

Shift position Remarks
A B C D E
P OFF (Open) OFF (Closed) OFF (Closed) OFF (Open) OFF (Closed) PARK POSITION
R OFF (Open) OFF (Closed) ON (Open) OFF (Open) ON (Open) REVERSE POSITION
N OFF (Open) OFF (Closed) OFF (Closed) OFF (Open) OFF (Closed) NEUTRAL POSITION
1st ON (Closed) ON (Open) ON (Open) OFF (Open) OFF (Closed)
1⇔2 OFF (Open) OFF (Closed) ON (Open) OFF (Open) OFF (Closed)
2nd OFF (Open) OFF (Closed) ON (Open) OFF (Open) OFF (Closed)
2⇔3 OFF (Open) OFF (Closed) ON (Open) ON (Closed) ON (Open)
Automatic shift
D 3rd OFF (Open) OFF (Closed) ON (Open) ON (Closed) OFF (Closed)
1⇔2⇔3⇔4⇔5
3⇔4 OFF (Open) OFF (Closed) OFF (Closed) ON (Closed) ON (Open)
4th OFF (Open) OFF (Closed) OFF (Closed) ON (Closed) OFF (Closed)
4⇔5 OFF (Open) ON (Open) OFF (Closed) ON (Closed) OFF (Closed)
5th OFF (Open) ON (Open) OFF (Closed) ON (Closed) OFF (Closed)
M5 5th OFF (Open) ON (Open) OFF (Closed) ON (Closed) OFF (Closed) Locks in 5th gear*
M4 4th OFF (Open) OFF (Closed) OFF (Closed) ON (Closed) OFF (Closed) Locks in 4th gear*
M3 3rd OFF (Open) OFF (Closed) ON (Open) ON (Closed) OFF (Closed) Locks in 3rd gear*
M2 2nd OFF (Open) OFF (Closed) ON (Open) OFF (Open) OFF (Closed) Locks in 2nd gear*
M1 1st ON (Closed) ON (Open) ON (Open) OFF (Open) ON (Open) Locks in 1st gear*
*: Except when automated up/down shift control and up/down shift permission control are actuated. Refer to AT-424, "MANUAL MODE" .

Solenoid Valves ECS009K1

Solenoid valves Resistance (Approx.) Connector (Color) Terminal

Shift solenoid valve A (B) 1 - Ground
Shift solenoid valve B (GY) 1 - Ground
Shift solenoid valve C 11 - 16 Ω (GY) 1 - Ground
Shift solenoid valve D (L) 1 - Ground
Shift solenoid valve E (G) 1 - Ground
Pressure control solenoid valve A (G) 1-2
Pressure control solenoid valve B 5.0 - 5.6 Ω (B) 1-2
Pressure control solenoid valve C (L) 1-2
Specified resistance at 20°C (68°F).

Revision: November 2006 AT-704 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
Clutch and Brakes ECS009K2

2ND BRAKE A
Number of 2nd brake plates 4
Number of 2nd brake discs 4
B
Number of 2nd brake flange 1
Piston stroke mm (in) 1.10 - 1.50 (0.0433 - 0.0591)
Thickness mm (in) Part number* AT
Thickness of 2nd brake flanges 3.6 (0.142) 31537-8Y011
3.8 (0.150) 31537-8Y012
4.0 (0.157) 31537-8Y013 D
*: Always check with the Parts Department for the latest parts information.

2ND COAST BRAKE

E
Number of 2nd coast brake plates 3
Number of 2nd coast brake discs 3
Number of 2nd coast brake flange 1 F
Piston stroke mm (in) 0.76 - 1.44 (0.0299 - 0.0567)

Revision: November 2006 AT-705 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
B5 BRAKE
Number of B5 brake plates 6
Number of B5 brake discs 6
Number of B5 brake flange 1
Number of B5 brake cushion plate 1
Piston stroke mm (in) 2.34 - 2.70 (0.0921 - 0.1063)
Thickness mm (in) Part number*
5.0 (0.197) 31667-8Y016
Thickness of B5 brake flanges 5.1 (0.202) 31667-8Y017
5.2 (0.205) 31667-8Y018
5.3 (0.209) 31667-8Y019
5.5 (0.217) 31667-8Y020
*: Always check with the Parts Department for the latest parts information.

1ST AND REVERSE BRAKE

Number of 1st and reverse brake plates 4
Number of 1st and reverse brake discs 5
Number of 1st and reverse brake flanges 2
Piston stroke mm (in) 1.39 - 2.21 (0.0547 - 0.0870)

FORWARD AND DIRECT CLUTCH ASSEMBLY

Thickness mm (in) Part number*2
0.81 (0.0319) 31435 8Y060
0.90 (0.0350) 31435 8Y061
1.00 (0.0400) 31435 8Y062
Thickness of thrust washer races 1.10 (0.0430) 31435 8Y063
1.20 (0.0470) 31435 8Y064
1.30 (0.0510) 31435 8Y065
1.40 (0.0550) 31435 8Y066
1.50 (0.0590) 31435 8Y067
End play mm (in) 0.188 - 0.570 mm (0.0074 - 0.0224)

*2 : Always check with the Parts Department for the latest parts information.

U/D BRAKE
Piston type Mark Piston length mm (in) Part number*
A — 63.7 (2.508) 31615 8Y005
B 1 64.2 (2.528) 31615 8Y004
C 2 64.7 (2.547) 31615 8Y003
D 3 65.2 (2.567) 31615 8Y002
E 4 65.7 (2.587) 31615 8Y001
Piston stroke mm (in) 5.76 - 6.76 mm (0.2268 - 0.2661)
*: Always check with the Parts Department for the latest parts information.

Revision: November 2006 AT-706 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
U/D RR PLANETARY RING GEAR SUB ASSEMBLY
A
Thickness mm (in) Part number*2
0.81 (0.0319) 31435 8Y0100
0.90 (0.0350) 31435 8Y0101
1.00 (0.0400) 31435 8Y0102 B
Thickness of adjust shims 1.10 (0.0430) 31435 8Y0103
1.20 (0.0470) 31435 8Y0104
1.30 (0.0510) 31435 8Y0105
AT
1.40 (0.0550) 31435 8Y0106
1.50 (0.0590) 31435 8Y0107
1.60 (0.0630) 31435 8Y0108

*2 : Always check with the Parts Department for the latest parts information.
D

U/D GEAR ASSEMBLY

Thickness mm (in) Part number*2 E
0.80 (0.0310) 31435 8Y021
0.90 (0.0350) 31435 8Y068
1.00 (0.0400) 31435 8Y069 F
Thickness of thrust washers 1.10 (0.0430) 31435 8Y070
1.20 (0.0470) 31435 8Y071
1.30 (0.0510) 31435 8Y072
1.40 (0.0550) 31435 8Y073 G
1.50 (0.0590) 31435 8Y074

*2 : Always check with the Parts Department for the latest parts information.
H
PLANETARY SUN GEAR SUB ASSEMBLY
Inner diameter of planetary sun gear Standard 22.200 - 22.226 (0.8740 - 0.8750)
sub assembly bushing mm (in). Allowable limit 22.276 (0.8770) I

PLANETARY GEAR ASSEMBLY

Inner diameter of planetary gear Standard 30.056 - 30.082 (1.1833 - 1.1843) J
assembly bushing mm (in). Allowable limit 30.132 (1.1863)

Final Drive ECS009K3

K
DIFFERENTIAL SIDE BEARING ADJUSTING SHIMS
Thickness mm (in) Part number* Thickness mm (in) Part number*
1.00 (0.0394) 31438-8Y001 1.48 (0.0583) 31438-8Y013 L
1.05 (0.0413) 31438-8Y002 1.51 (0.0594) 31438-8Y014
1.10 (0.0433) 31438-8Y003 1.54 (0.0606) 31438-8Y015
1.15 (0.0453) 31438-8Y004 1.57 (0.0618) 31438-8Y016
1.20 (0.0472) 31438-8Y005 1.60 (0.0630) 31438-8Y017 M
1.25 (0.0492) 31438-8Y006 1.65 (0.0650) 31438-8Y018
1.30 (0.0512) 31438-8Y007 1.70 (0.0669) 31438-8Y019
1.33 (0.0524) 31438-8Y008 1.75 (0.0689) 31438-8Y020
1.36 (0.0535) 31438-8Y009 1.80 (0.0709) 31438-8Y021
1.39 (0.0547) 31438-8Y010 1.85 (0.0728) 31438-8Y022
1.42 (0.0559) 31438-8Y011 1.90 (0.0748) 31438-8Y023
1.45 (0.0571) 31438-8Y012
*: Always check with the Parts Department for the latest parts information.

TURNING TORQUE
Turning torque of final drive assembly 0.7 - 1.2 N·m (0.08 - 0.12kg-m, 7 - 10 in-lb)

Revision: November 2006 AT-707 2006 Altima

 SERVICE DATA AND SPECIFICATIONS (SDS)
[RE5F22A]
A/T Fluid Temperature Sensor ECS009K4

Condition Voltage (Approx.) Resistance (Approx.)

0°C (32°F) 4.0V 9.8 kΩ
20°C (68°F) 3.0V 4.2 kΩ
ATF temperature
80°C (176°F) 0.8V 0.54 kΩ
100°C (212°F) 0.5V 0.31 kΩ

Turbine Revolution Sensor ECS009K5

Condition Signal Voltage* (Approx.)

HIGH 1.2 - 1.6V
Connect 12V power supply and 100 Ω resistance, and then shake magnetic body.
LOW 0.4 - 0.8V
*: Voltage with both end of 100 Ω resistance.

Revolution Sensor ECS009K6

Condition Signal Voltage* (Approx.)

HIGH 1.2 - 1.6V
Connect 12V power supply and 100 Ω resistance, and then shake magnetic body.
LOW 0.4 - 0.8V
*: Voltage with both end of 100 Ω resistance.

Revision: November 2006 AT-708 2006 Altima