POWER SUPPLY, GROUND & CIRCUIT ELEMENTS

K ELECTRICAL

B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C

E
CONTENTS
POWER SUPPLY ROUTING CIRCUIT ...................... 3 GROUND ................................................................... 29 F
Schematic ................................................................ 3 Ground Distribution ................................................. 29
Wiring Diagram — POWER — ................................. 4 MAIN HARNESS ................................................. 29
BATTERY POWER SUPPLY — IGNITION SW. ENGINE ROOM HARNESS ................................ 32 G
IN ANY POSITION ................................................ 4 ENGINE CONTROL HARNESS .......................... 34
ACCESSORY POWER SUPPLY — IGNITION BODY HARNESS ................................................ 35
SW. IN “ACC” OR “ON” ......................................... 9 BODY NO. 2 HARNESS ..................................... 37
H
IGNITION POWER SUPPLY — IGNITION SW. HARNESS ................................................................. 38
IN “ON” AND/OR “START” .................................. 10 Harness Layout ...................................................... 38
Fuse ....................................................................... 16 HOW TO READ HARNESS LAYOUT ................. 38
Fusible Link ............................................................ 16 OUTLINE ............................................................. 39 I
Circuit Breaker ....................................................... 16 MAIN HARNESS ................................................. 40
IPDM E/R (INTELLIGENT POWER DISTRIBUTION ENGINE ROOM HARNESS ................................ 43
MODULE ENGINE ROOM) ...................................... 17 ENGINE CONTROL HARNESS .......................... 46 J
System Description ................................................ 17 BODY HARNESS ................................................ 48
SYSTEMS CONTROLLED BY IPDM E/R ........... 17 BODY NO. 2 HARNESS ..................................... 50
CAN COMMUNICATION LINE CONTROL ......... 17 ROOM LAMP HARNESS .................................... 51
PG
IPDM E/R STATUS CONTROL ........................... 18 FRONT DOOR HARNESS .................................. 52
CAN Communication System Description .............. 18 REAR DOOR HARNESS .................................... 53
CAN Communication Unit ...................................... 18 BACK DOOR HARNESS .................................... 54
Function of Detecting Ignition Relay Malfunction ... 18 Wiring Diagram Codes (Cell Codes) ...................... 55 L
CONSULT-II Function (IPDM E/R) ......................... 19 ELECTRICAL UNITS LOCATION ............................ 58
CONSULT-II INSPECTION PROCEDURE ......... 19 Electrical Units Location ......................................... 58
SELF-DIAG RESULTS ........................................ 19 ENGINE COMPARTMENT .................................. 58 M
DATA MONITOR ................................................. 19 PASSENGER COMPARTMENT ......................... 59
ACTIVE TEST ..................................................... 21 LUGGAGE COMPARTMENT .............................. 61
Auto Active Test ..................................................... 21 HARNESS CONNECTOR ......................................... 62
DESCRIPTION .................................................... 21 Description .............................................................. 62
OPERATION PROCEDURE ............................... 21 HARNESS CONNECTOR (TAB-LOCKING
INSPECTION IN AUTO ACTIVE TEST MODE ... 22 TYPE) .................................................................. 62
Schematic .............................................................. 24 HARNESS CONNECTOR (SLIDE-LOCKING
IPDM E/R Terminal Arrangement ........................... 25 TYPE) .................................................................. 63
IPDM E/R Power/Ground Circuit Inspection .......... 26 ELECTRICAL UNITS ................................................ 64
Inspection with CONSULT-II (Self-Diagnosis) ........ 27 Terminal Arrangement ............................................ 64
Removal and Installation of IPDM E/R ................... 28 SMJ (SUPER MULTIPLE JUNCTION) ..................... 66
REMOVAL ........................................................... 28 Terminal Arrangement ............................................ 66
INSTALLATION ................................................... 28 STANDARDIZED RELAY .......................................... 67
Description .............................................................. 67
NORMAL OPEN, NORMAL CLOSED AND

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 MIXED TYPE RELAYS ........................................ 67 FUSE, FUSIBLE LINK AND RELAY BOX ................70
TYPE OF STANDARDIZED RELAYS .................. 67 Terminal Arrangement .............................................70
FUSE BLOCK - JUNCTION BOX (J/B) .................... 69
Terminal Arrangement ............................................ 69

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 POWER SUPPLY ROUTING CIRCUIT

POWER SUPPLY ROUTING CIRCUIT PFP:24110

A
Schematic NKS0025A

PG

TKWB2680E

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 POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram — POWER — NKS0025B

BATTERY POWER SUPPLY — IGNITION SW. IN ANY POSITION

TKWB2681E

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 POWER SUPPLY ROUTING CIRCUIT

PG

TKWB2682E

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 POWER SUPPLY ROUTING CIRCUIT

TKWB2683E

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 POWER SUPPLY ROUTING CIRCUIT

PG

TKWB2684E

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 POWER SUPPLY ROUTING CIRCUIT

TKWB2685E

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 POWER SUPPLY ROUTING CIRCUIT

ACCESSORY POWER SUPPLY — IGNITION SW. IN “ACC” OR “ON”

A

PG

TKWB2686E

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 POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY — IGNITION SW. IN “ON” AND/OR “START”

TKWB2687E

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 POWER SUPPLY ROUTING CIRCUIT

PG

TKWB2688E

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 POWER SUPPLY ROUTING CIRCUIT

TKWB0538E

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 POWER SUPPLY ROUTING CIRCUIT

PG

TKWB0539E

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 POWER SUPPLY ROUTING CIRCUIT

TKWB2689E

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 POWER SUPPLY ROUTING CIRCUIT

PG

TKWA1753E

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 POWER SUPPLY ROUTING CIRCUIT

Fuse NKS0025C

● If fuse is blown, be sure to eliminate cause of malfunction before

installing new fuse.
● Use fuse of specified rating. Never use fuse of more than speci-
fied rating.
● Do not partially install fuse; always insert it into fuse holder prop-
erly.
● Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.

CEL083

Fusible Link NKS0025D

A melted fusible link can be detected either by visual inspection or by

feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:
● If fusible link should melt, it is possible that critical circuit
(power supply or large current carrying circuit) is shorted.
In such a case, carefully check and eliminate cause of mal-
function.
● Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl
or rubber parts. CKIB0293E

Circuit Breaker NKS0025E

The PTC thermistor generates heat in response to current flow. The

temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.

SEL109W

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

PFP:284B7 A
System Description NKS0025F

● IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block B
which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
cuit.
● IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, and hood switch signal reception, etc. C
● It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed. D

SYSTEMS CONTROLLED BY IPDM E/R

IPDM E/R receives a request signal from each control unit with CAN communication. It controls each system. E
Control system Transmit control unit Control part
● Head lamps (HI, LO)
Lamp control BCM ● Front fog lamps F
● Parking, license plate, side marker and tail lamps
Wiper control BCM Front wipers
G
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor (magnet clutch)
Cooling fan control ECM Cooling fan H
Horn control BCM Horn

CAN COMMUNICATION LINE CONTROL I

With CAN communication, by connecting each control unit using two communication lines (CAN L line, CAN H
line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
J
1. Fail-safe control
● When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication recovers normally, it also returns to normal control.
PG
● Operation of control parts by IPDM E/R during fail-safe mode is as follows:

Controlled system Fail-safe mode

● With the ignition switch ON, the headlamp (LO) is ON.
L
Headlamp
● With the ignition switch OFF, the headlamp (LO) is OFF.

Parking, license plate, side marker ● With the ignition switch ON, the parking, license plate, side marker and tail lamps are ON.
M
and tail lamps ● With the ignition switch OFF, the parking, license plate, side marker and tail lamps are OFF.
● With the ignition switch ON, the cooling fan HI operates.
Cooling fan
● With the ignition switch OFF, the cooling fan stops.
Until the ignition switch is turned OFF, the front wiper LO and HI remains in the same status it
Front wiper
was in just before fail−safe control was initiated.
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R STATUS CONTROL

In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status
● CAN communication is normally performed with other control units.

● Individual unit control by IPDM E/R is normally performed.

● When sleep request signal is received from BCM, mode is switched to sleep waiting status.

2. Sleep waiting status

● Process to stop CAN communication is activated.

● All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communi-
cation with other control units is stopped, mode switches to sleep status.
3. Sleep status
● IPDM E/R operates in low power mode.

● CAN communication is stopped.

● When a change in CAN communication line is detected, mode switches to CAN communication status.

● When a change hood switch or ignition switch signal is detected, mode switches to CAN communica-
tion status.
CAN Communication System Description NKS0025G

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. Modern
vehicles are equipped with many electronic control units 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.
CAN Communication Unit NKS0025H

Refer to LAN-32, "CAN Communication Unit" .

Function of Detecting Ignition Relay Malfunction NKS0025I

● When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON tail
and parking lamps for 10 minutes to indicate ignition relay malfunction.
● When a state of ignition relay having built-in does not agree with a state of Ignition switch signal input by a
CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

CONSULT-II Function (IPDM E/R) NKS0025J

A
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
Inspection Item, Diagnosis Mode Description
SELF-DIAG RESULTS The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis. B
DATA MONITOR The input/output data of the IPDM E/R is displayed in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
C
ACTIVE TEST The IPDM E/R sends a drive signal to electronic components to check their operation.

CONSULT-II INSPECTION PROCEDURE

D
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAG RESULTS
Operation Procedure E
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Display Item List F

CONSULT-II TIME
Display Items Malfunction detecting condition Possible causes
display code CRNT PAST G
NO DTC IS
DETECTED.FURTHER
- - - - -
TESTING MAY BE
H
REQUIRED.
● If CAN communication reception/transmis- Any of or several items
sion data has a malfunction, or if any of the below have errors.
control units malfunction, data reception/ I
CAN COMM CIRC U1000 transmission cannot be confirmed. × × ● TRANSMIT DIAG
● ECM
● When the data in CAN communication is not
received before the specified time ● BCM/SEC J
NOTE:
The details for display of the period are as follows:
PG
● CRNT: Error currently detected with IPDM E/R.
● PAST: Error detected in the past and memorized with IPDM E/R.

DATA MONITOR L
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT MONITOR ITEM ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” M
screen.

ALL SIGNALS All items will be monitored.

MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.

3. Touch the required monitoring item on “SELECTION FROM MENU”. In “ALL SIGNALS”, all items are
monitored. In “MAIN SIGNALS”, predetermined items are monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

All Signals, Main Signals, Selection From Menu

Monitor item selection

CONSULT-II SELEC-
Item name Display or unit ALL MAIN TION Description
screen display
SIGNALS SIGNALS FROM
MENU
Motor fan request MOTOR FAN REQ 1/2/3/4 × × × Signal status input from ECM
Compressor request AC COMP REQ ON/OFF × × × Signal status input from ECM
Tail & clear request TAIL&CLR REQ ON/OFF × × × Signal status input from BCM
H/L LO request HL LO REQ ON/OFF × × × Signal status input from BCM
H/L HI request HL HI REQ ON/OFF × × × Signal status input from BCM
Front fog request FR FOG REQ ON/OFF × × × Signal status input from BCM
Head lamp washer HL WASHER
ON/OFF × × Signal status input from BCM
request REQ*1
STOP/1LOW/
Front wiper request FR WIP REQ × × × Signal status input from BCM
LOW/HI
Wiper auto stop WIP AUTO STOP ACT P/STOP P × × × Output status of IPDM E/R
Wiper protection WIP PROT OFF/BLOCK × × × Control status of IPDM E/R
Starter request ST RLY REQ*2 ON/OFF × × Status of input signal
Ignition relay status monitored
Ignition relay status IGN RLY ON/OFF × × ×
with IPDM E/R
Rear window defog-
RR DEF REQ ON/OFF × × × Signal status input from BCM
ger request
Oil pressure switch OIL P SW OPEN/CLOSE × × Signal status input in IPDM E/R
Day time light request DTRL REQ*1 ON/OFF × × Signal status input from BCM
Hood switch HOOD SW ON/OFF × × Signal status input in IPDM E/R
Theft warning horn
THFT HRN REQ ON/OFF × × Signal status input from BCM
request
Horn chirp HORN CHIRP ON/OFF × × Output status of IPDM E/R
NOTE:
● Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the display may not be cor-
rect.
● *1: This item is displayed, but does not function.
● *2: The vehicle without the Intelligent Key system displays only ON without change.

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

ACTIVE TEST
Operation Procedure A
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch item to be tested.
B
3. Touch “START”, and confirm its operation.
4. Touch “STOP” while testing to stop the operation.
Test item CONSULT-II screen display Description C
With a certain ON-OFF operation, the tail lamp relay can be oper-
Tail lamp operation TAIL LAMP
ated.
Rear window defogger opera- With a certain ON-OFF operation, the rear window defogger relay D
REAR DEFOGGER
tion can be operated.
With a certain operation (OFF, HI ON, LO ON), the front wiper relay
Front wiper (HI, LO) operation FRONT WIPER
(Lo, Hi) can be operated.
E
Cooling fan operation MOTOR FAN With a certain operation (1,2,3,4), the cooling fan can be operated.
Headlamp washer operation HEAD LAMP WASHER NOTE —
With a certain operation (OFF, HI ON, LO ON, FOG ON), the lamp F
Lamp (HI, LO, FOG) operation LAMPS
relay (Lo, Hi, Fog) can be operated.
Horn operation HORN Push “ON” button, horn relay operates 20ms.
G
NOTE:
Headlamp washer item is displayed, but cannot be tested.

Auto Active Test NKS0025K H

DESCRIPTION
In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems: I
● Rear window defogger
● Front wipers
● Parking lamps, license plate lamps, tail lamps and side marker lamps J
● Front fog lamps
● Headlamps (Hi, Lo)
● A/C compressor (magnetic clutch) PG
● Cooling fan
OPERATION PROCEDURE L
1. Close hood and front door (passenger side), and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE: M
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON, and within 20 seconds, open and close 10 times of front door LH. Then turn igni-
tion switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once. Oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
Be sure to inspect BL-44, "Check Door Switch" when the auto active test cannot be performed.

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

INSPECTION IN AUTO ACTIVE TEST MODE

When auto active test mode is actuated, the following eight steps are repeated three times.

SKIB7835E

(A): Oil pressure warning lamp is blinking when the auto active test operating.
Operation steps
Test item Operation time/ frequency
1 Rear window defogger 10 seconds
2 Front wiper LO 5 seconds → HI 5 seconds
3 Parking lamps, license plate lamps, tail lamps and side marker lamps 10 seconds
4 Front fog lamps 10 seconds
5 Headlamp (LO) 10 seconds
6 NOTE ON⇔OFF 5 times
Headlamp (HI)
7 A/C compressor (magnetic clutch) ON⇔OFF 5 times
8 Cooling fan LO 5 seconds → HI 5 seconds
NOTE:
Turns ON-OFF the solenoid to switch HI/LO. In this case, the bulb does not illuminate.

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Concept of Auto Active Test

● IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu- A
nication line. Therefore, when auto active test mode is activated successfully, CAN communication
between IPDM E/R and BCM is normal.
● If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed B
using auto active test.
Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause C
YES ● BCM signal input system malfunction
Any of front wipers, tail ● Lamp/wiper motor malfunction
and parking lamps, front Perform auto active D
● Lamp/wiper motor ground circuit malfunction
fog lamps, and head test. Does system in
lamps (Hi, Lo) do not question operate? NO ● Harness/connector malfunction between IPDM E/R and system in
operate. question
E
● IPDM E/R (integrated relay) malfunction
YES ● BCM signal input circuit malfunction

Perform auto active ● Rear window defogger relay malfunction F

Rear window defogger test. Does rear win- ● Harness/connector malfunction between IPDM E/R and rear window
does not operate. dow defogger oper- NO defogger relay
ate?
● Open circuit of rear window defogger G
● IPDM E/R malfunction
● BCM signal input circuit malfunction
YES ● CAN communication signal between BCM and ECM. H
Perform auto active ● CAN communication signal between ECM and IPDM E/R
A/C compressor does
test. Does magnetic ● Magnetic clutch malfunction
not operate.
clutch operate? I
● Harness/connector malfunction between IPDM E/R and magnetic
NO
clutch
● IPDM E/R (integrated relay) malfunction
J
● ECM signal input circuit
YES
● CAN communication signal between ECM and IPDM E/R
Perform auto active
Cooling fan does not ● Cooling fan motor malfunction PG
test. Does cooling fan
operate. ● Harness/connector malfunction between IPDM E/R and cooling fan
operate?
NO
motor
● IPDM E/R (integrated relay) malfunction L
● Harness/connector malfunction between IPDM E/R and oil pressure
switch
YES
Perform auto active ● Oil pressure switch malfunction M
Oil pressure warning test. Does oil pres-
● IPDM E/R malfunction
lamp does not operate. sure warning lamp
blink? ● CAN communication signal between BCM and Unified Meter and A/C
NO Amp.
● Combination meter

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Schematic NKS0025L

TKWB2690E

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R Terminal Arrangement NKS0025M

PG

CKIB0042E

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R Power/Ground Circuit Inspection NKS0025N

1. CHECK FUSE AND FUSIBLE LINK

Make sure the following fusible links or IPDM E/R fuses are not blown.
Terminal No. Power source Fuse and fusible link No.
1 E
2 C
Battery power
71
—
78

OK or NG
OK >> GO TO 2.
NG >> Replace fuse or fusible link.

2. CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E3.
3. Check voltage between IPDM E/R harness connector E3 termi-
nals 1, 2 and ground.
1, 2 - Ground : Battery voltage
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
PKIB6562E

3. CHECK GROUND CIRCUIT

1. Disconnect IPDM E/R harness connectors E8 and E9.
2. Check continuity between IPDM E/R harness connectors E8 ter-
minal 38, E9 terminal 50, 60 and ground.
38, 50, 60 - Ground : Continuity should exist.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.

SKIA6184E

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Inspection with CONSULT-II (Self-Diagnosis) NKS0025O

A
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.
B
1. CHECK SELF DIAGNOSTIC RESULT
1. Connect CONSULT-II and select “IPDM E/R” on “SELECT SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen. C
3. Check display content in self diagnostic results.

CONSULT-II TIME D
CONSULT-II display Details of diagnosis result
display code CRNT PAST
NO DTC IS DETECTED.
- - - No malfunction
FURTHER TESTING MAY BE REQUIRED. E
Any of or several items below have errors.
● TRANSMIT DIAG
CAN COMM CIRC U1000 × ×
● ECM F
● BCM/SEC
NOTE:
G
The details for display of the period are as follows:
● CRNT: Error currently detected with IPDM E/R.
● PAST: Error detected in the past and memorized with IPDM E/R. H
Contents displayed
NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.>>INSPECTION END
CAN COMM CIRC>>After print-out of the monitor items, refer to LAN-3, "Precautions When Using CON- I
SULT-II" .

PG

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 IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

Removal and Installation of IPDM E/R NKS0025P

REMOVAL
1. Remove IPDM E/R cover A and IPDM E/R cover.
2. While spreading pawls on both side of IPDM E/R cover B,
remove IPDM E/R from IPDM E/R cover B.
3. Remove harness connector from IPDM E/R.

SKIA4048E

INSTALLATION
Installation is the revers order of removal.

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 GROUND

GROUND PFP:00011
A
Ground Distribution NKS0025Q

MAIN HARNESS
B

PG

CKIB0294E

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 GROUND

CKIB0295E

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 GROUND

PG

CKIB0296E

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 GROUND

ENGINE ROOM HARNESS

CKIB0297E

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 GROUND

PG

CKIB0309E

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 GROUND

ENGINE CONTROL HARNESS

CKIB0298E

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 GROUND

BODY HARNESS
A

PG

CKIB0300E

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 GROUND

CKIB0301E

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 GROUND

BODY NO. 2 HARNESS

A

PG

CKIB0302E

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 HARNESS

HARNESS PFP:00011

Harness Layout NKS0025R

HOW TO READ HARNESS LAYOUT

The following Harness Layouts use a map style grid to help locate
connectors on the figures:
● Main Harness
● Engine Room Harness (Engine Compartment)
● Engine Control Harness
● Body Harness

SEL252V

To Use the Grid Reference

1. Find the desired connector number on the connector list.
2. Find the grid reference.
3. On the figure, find the crossing of the grid reference letter column and number row.
4. Find the connector number in the crossing zone.
5. Follow the line (if used) to the connector.
CONNECTOR SYMBOL
Main symbols of connector (in Harness Layout) are indicated in the below.

CKIT0108E

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 HARNESS

OUTLINE
A

TKIA0022E I

PG

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 HARNESS

MAIN HARNESS

TKIB0607E

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 HARNESS

PG

TKIB0608E

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 HARNESS

TKIB0609E

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 HARNESS

ENGINE ROOM HARNESS

Engine Compartment A

PG

TKIB0610E

Revision: 2006 August PG-43 2006 Murano

 HARNESS

TKIB0611E

Revision: 2006 August PG-44 2006 Murano

 HARNESS

Passenger Compartment
A

PG

TKIB0612E

Revision: 2006 August PG-45 2006 Murano

 HARNESS

ENGINE CONTROL HARNESS

TKIB0613E

Revision: 2006 August PG-46 2006 Murano

 HARNESS

PG

TKIB0614E

Revision: 2006 August PG-47 2006 Murano

 HARNESS

BODY HARNESS

TKIB0615E

Revision: 2006 August PG-48 2006 Murano

 HARNESS

PG

TKIB0616E

Revision: 2006 August PG-49 2006 Murano

 HARNESS

BODY NO. 2 HARNESS

TKIB0617E

Revision: 2006 August PG-50 2006 Murano

 HARNESS

ROOM LAMP HARNESS

A

PG

TKIB0618E

Revision: 2006 August PG-51 2006 Murano

 HARNESS

FRONT DOOR HARNESS

LH Side

TKIB0619E

RH Side

TKIB0620E

Revision: 2006 August PG-52 2006 Murano

 HARNESS

REAR DOOR HARNESS

LH Side A

I
TKIB0100E

RH Side
J

PG

TKIB0101E

Revision: 2006 August PG-53 2006 Murano

 HARNESS

BACK DOOR HARNESS

TKIB0621E

Revision: 2006 August PG-54 2006 Murano

 HARNESS

Wiring Diagram Codes (Cell Codes) NKS0025S

A
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
B
Code Section Wiring Diagram Name
A/C ATC Air Conditioner
ABS BRC Anti-Lock Brake System C
AF1B1 EC Air Fuel Ratio Sensor 1 Bank 1
AF1B2 EC Air Fuel Ratio Sensor 1 Bank 2
AF1HB1 EC Air Fuel Ratio Sensor 1 Heater Bank 1
D
AF1HB2 EC Air Fuel Ratio Sensor 1 Heater Bank 2
APPS1 EC Accelerator Pedal Position Sensor E
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch F
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
G
ASCIND EC Automatic Speed Control Device (ASCD) Indicator
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner H
AUTO/L LT Automatic Light System
AWD TF AWD System
I
B/DOOR BL Back Door Opener
BACK/L LT Back-Up Lamp
BRK/SW EC Brake Switch J
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
PG
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime L
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COMPAS DI Compass M
COOL/F EC Cooling Fan Control
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp – With Daytime Light System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
EMNT EC Engine Mount
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump

Revision: 2006 August PG-55 2006 Murano

 HARNESS

Code Section Wiring Diagram Name

FTS CVT CVT Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Function (Bank 1)
FUELB2 EC Fuel Injection System Function (Bank 2)
H/AIM LT Headlamp Aiming Control System
H/LAMP LT Headlamp
HORN WW Horn
HSEAT SE Heated Seat
I/KEY BL Intelligent Key System
I/MIRR GW Inside Mirror (Auto Anti-Dazzling Mirror)
IATS EC Intake Air Temperature Sensor
IGNSYS EC Ignition System
ILL LT Illumination
INF/D AV Vehicle Information and Integrated Switch System
INJECT EC Injector
IVCB1 EC Intake Valve Timing Control Solenoid Valve Bank 1
IVCB2 EC Intake Valve Timing Control Solenoid Valve Bank 2
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
L/USSV CVT Lock-Up Select Solenoid Valve
LPSV CVT Line Pressure Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN EC Main Power Supply and Ground Circuit
METER DI Speedometer, Tachometer, Temp. and Fuel Gauges
MIL/DL EC MIL & Data Link Connector
MIRROR GW Power Door Mirror
MMSW CVT Manual Mode Switch
NATS BL Nissan Anti-Theft System
NAVI AV Navigation System
NONDTC CVT Non-Detective Items
O2H2B1 EC Heated Oxygen Sensor 2 Heater Bank 1
O2H2B2 EC Heated Oxygen Sensor 2 Heater Bank 2
O2S2B1 EC Heated Oxygen Sensor 2 Bank 1
O2S2B2 EC Heated Oxygen Sensor 2 Bank 2
P/SCKT WW Power Socket
PEDAL AP Adjustable Pedal System
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHSB1 EC Camshaft Position Sensor (PHASE) (Bank1)
PHSB2 EC Camshaft Position Sensor (PHASE) (Bank2)
PNP/SW CVT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (CKPS) (POS)
POWER CVT Transmission Control Module (Power Supply)
POWER PG Power Supply Routing Circuit

Revision: 2006 August PG-56 2006 Murano

 HARNESS

Code Section Wiring Diagram Name

A
PRE/SE EC EVAP Control System Pressure Sensor
PRIPS CVT Primary Pressure Sensor
PRSCVT CVT Primary Speed Sensor CVT (Revolution Sensor) B
PS/SEN EC Power Steering Pressure Sensor
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor C
SEAT SE Power Seat
SECPS CVT Secondary Pressure Sensor
D
SECPSV CVT Secondary Pressure Solenoid Valve
SEN/PW EC Sensor Power Supply
SESCVT CVT Secondary Speed Sensor CVT (Revolution Sensor) E
SHIFT CVT CVT Shift Lock System
SPSW CVT Second Position Switch
F
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System G
STM CVT Step Motor
STOP/L LT Stop Lamp
H
STSIG CVT Start Signal Circuit
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps I
TCV CVT Torque Converter Clutch Solenoid Valve
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
J

TPS3 EC Throttle Position Sensor

TRNSCV BL Homelink Universal Transceiver PG
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VEHSEC BL Vehicle Security System L
VENT/V EC EVAP Canister Vent Control Valve
VIAS EC Variable Induction Air Control System
M
VIAS/V EC VIAS Control Solenoid Valve
WARN DI Warning Lamps
WINDOW GW Power Window
WIP/R WW Rear Wiper and Washer
WIPER WW Front Wiper and Washer

Revision: 2006 August PG-57 2006 Murano

 ELECTRICAL UNITS LOCATION

ELECTRICAL UNITS LOCATION PFP:25230

Electrical Units Location NKS0025T

ENGINE COMPARTMENT

CKIB0303E

Revision: 2006 August PG-58 2006 Murano

 ELECTRICAL UNITS LOCATION

PASSENGER COMPARTMENT
A

PG

CKIB0304E

Revision: 2006 August PG-59 2006 Murano

 ELECTRICAL UNITS LOCATION

CKIB0305E

Revision: 2006 August PG-60 2006 Murano

 ELECTRICAL UNITS LOCATION

LUGGAGE COMPARTMENT
A

PG

CKIB0306E

Revision: 2006 August PG-61 2006 Murano

 HARNESS CONNECTOR

HARNESS CONNECTOR PFP:00011

Description NKS0025U

HARNESS CONNECTOR (TAB-LOCKING TYPE)

● The tab-locking type connectors help prevent accidental looseness or disconnection.
● The tab-locking type connectors are disconnected by pushing or lifting the locking tab(s). Refer to the fig-
ure below.
Refer to the next page for description of the slide-locking type connector.
CAUTION:
Never pull the harness or wires when disconnecting the connector.

[Example]

SEL769DA

Revision: 2006 August PG-62 2006 Murano

 HARNESS CONNECTOR

HARNESS CONNECTOR (SLIDE-LOCKING TYPE)

● A new style slide-locking type connector is used on certain systems and components, especially those A
related to OBD.
● The slide-locking type connectors help prevent incomplete locking and accidental looseness or discon-
nection. B
● The slide-locking type connectors are disconnected by pushing or pulling the slider. Refer to the figure
below.
CAUTION: C
● Never pull the harness or wires when disconnecting the connector.
● Be careful not to damage the connector support bracket when disconnecting the connector.
D
[Example]

PG

SEL769V

Revision: 2006 August PG-63 2006 Murano

 ELECTRICAL UNITS

ELECTRICAL UNITS PFP:00011

Terminal Arrangement NKS0025V

CKIA0322E

Revision: 2006 August PG-64 2006 Murano

 ELECTRICAL UNITS

PG

CKIB0051E

Revision: 2006 August PG-65 2006 Murano

 SMJ (SUPER MULTIPLE JUNCTION)

SMJ (SUPER MULTIPLE JUNCTION) PFP:B4341

Terminal Arrangement NKS0025W

CKIA0292E

Revision: 2006 August PG-66 2006 Murano

 STANDARDIZED RELAY

STANDARDIZED RELAY PFP:00011

A
Description NKS0025X

NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYS

Relays can mainly be divided into three types: normal open, normal closed and mixed type relays. B

SEL881H
H

TYPE OF STANDARDIZED RELAYS

1M ···················· 1 Make 2M ···················· 2 Make I
1T ···················· 1 Transfer 1M·1B ···················· 1 Make 1 Break

PG

SEL882H

Revision: 2006 August PG-67 2006 Murano

 STANDARDIZED RELAY

SEL188W

Revision: 2006 August PG-68 2006 Murano

 FUSE BLOCK - JUNCTION BOX (J/B)

FUSE BLOCK - JUNCTION BOX (J/B) PFP:24350

A
Terminal Arrangement NKS0025Y

PG

CKIB0307E

Revision: 2006 August PG-69 2006 Murano

 FUSE, FUSIBLE LINK AND RELAY BOX

FUSE, FUSIBLE LINK AND RELAY BOX PFP:24382

Terminal Arrangement NKS0025Z

CKIB0308E

Revision: 2006 August PG-70 2006 Murano