Power Supply, Ground & Circuit Elements: Section
Power Supply, Ground & Circuit Elements: Section
PG
A
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
E
CONTENTS
PRECAUTION ............................................... 3 IPDM E/R (INTELLIGENT POWER DISTRI- F
BUTION MODULE ENGINE ROOM) ................ 60
PRECAUTIONS ................................................... 3 IPDM E/R Terminal Arrangement ............................60
Precaution for Supplemental Restraint System G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- BASIC INSPECTION ................................... 61
SIONER" ................................................................... 3
Precaution for Power Generation Voltage Variable BATTERY .......................................................... 61
How to Handle Battery .............................................61 H
Control System .......................................................... 3
Work Flow ................................................................61
PREPARATION ............................................ 4
INSPECTION AND ADJUSTMENT .................. 64 I
PREPARATION ................................................... 4
Special Service Tools ................................................ 4 ADDITIONAL SERVICE WHEN REMOVING BAT-
Commercial Service Tool .......................................... 4 TERY NEGATIVE TERMINAL ...................................64
ADDITIONAL SERVICE WHEN REMOVING J
SYSTEM DESCRIPTION .............................. 5 BATTERY NEGATIVE TERMINAL : Special Re-
pair Requirement .....................................................64
ELECTRICAL UNITS LOCATION ....................... 5 K
Electrical Units Location ............................................ 5 FUSE INSPECTION .......................................... 65
How To Check .........................................................65
COMPONENT PARTS ........................................ 9
Circuit Breaker (Built Into BCM) ................................ 9 FUSIBLE LINK INSPECTION ........................... 69 L
Harness Connector ................................................... 9 Fusible Link .............................................................69
Standardized Relay ................................................. 12
REMOVAL AND INSTALLATION ............... 70
PG
WIRING DIAGRAM ...................................... 15
BATTERY .......................................................... 70
POWER SUPPLY ROUTING CIRCUIT ..............15 Exploded View .........................................................70
Wiring Diagram — Battery Power Supply — ........... 15 Removal and Installation (Battery) ..........................70 N
Wiring Diagram — Accessory Power Supply — .... 23 Removal and Installation (Battery Tray) ..................71
Wiring Diagram — Ignition Power Supply — .......... 27
BATTERY TERMINAL WITH FUSIBLE LINK ... 72
Exploded View .........................................................72 O
GROUND ............................................................35
Ground Distribution ................................................. 35 Removal and Installation .........................................72
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along C
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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
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 performed by
an authorized NISSAN/INFINITI dealer. E
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR 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 har-
ness connectors.
G
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni- H
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the I
battery and wait at least three minutes before performing any service.
Precaution for Power Generation Voltage Variable Control System INFOID:0000000012433112
J
CAUTION:
For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri- K
cal component or the ground wire is connected directly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
L
not connect the electrical component or the ground wire directly to the battery terminal.
PG
The actual shape of the tools may differ from those illustrated here.
Tool number Description
(TechMate No.)
Tool name
— Tests batteries, starting and charging
(—) Model GR8-1200 NI systems and charges batteries.
Multitasking battery and electrical diag- For operating instructions, refer to diag-
nostic station nostic station instruction manual.
AWIIA1239ZZ
JSMIA0806ZZ
PIIB1407E
ENGINE COMPARTMENT
C
PG
AAMIA2764GB
AAMIA2765GB
PG
AAMIA1786GB
AAMIA2766GB
SBF284E E
Harness Connector INFOID:0000000012433117
PG
SEL769DA
I
SEL769V
PG
LKIA0670E
1. Control unit with single lever 2. Control unit with dual lever 3. SMJ connector
A. Fasten A. Lever A. Lever
B. Loosen B. Fasten B. Fasten
C. Lever C. Loosen C. Loosen
WHIA0103E
SEL881H F
PG
SEL882H
SEL188W
PG
ABMWA3496GB
AAMWA1940GB
PG
AAMWA1398GB
AAMWA1399GB
PG
AAMWA1400GB
AAMIA1766GB
PG
ABMIA7853GB
AAMIA2761GB
PG
ABMWA3495GB
P
ABMIA7851GB
PG
AAMIA1770GB
ABMIA7852GB
PG
ABMWA3497GB
P
ABMWA3498GB
PG
AAMWA1404GB
AAMIA1772GB
PG
ABMIA7854GB
AAMIA2762GB
PG
ABMIA7855GB
ABMIA7856GB
MAIN HARNESS B
PG
ABMIA7432GB
AAMIA2772GB
PG
AAMIA2773GB
ABMIA7433GB
PG
AAMIA2777GB
AAMIA1782GB
PG
ABMIA7850GB
P
3. On the drawing, find the crossing of the grid reference letter col-
umn and number row.
4. Find the connector number in the crossing zone.
5. Follow the line (if used) to the connector.
OUTLINE
AAMIA1790GB
PG
AAMIA0551ZZ
P
B1 M1 W/8 : To R1 D3 M51 L/20 : Joint connector-M04
D2 M2 — : Diode C2 M53 B/8 : EPS control unit
B2 M3 W/1 : Fuse block (J/B) D1 M55 W/4 : Hazard switch
A3 M4 W/1 : Fuse block (J/B) D2 M56 W/8 : Audio unit (With display audio system)
C1 M5 W/20 : Joint connector–M03 B1 M57 — : Body ground
PG
AAMIA0382ZZ
F1 E1 GR/5 : Front wiper motor E2 E40 B/2 : Brake fluid level switch
A5 E2 GR/2 : Front and rear washer motor F2 E41 L/5 : Starter relay
PG
AAMIA0187ZZ
P
A3 E7 SMJ : To M69 C3 E36 BR/2 : Brake pedal position switch
A4 E11 B/2 : To M78 B2 E37 B/5 : Daytime running light relay 1
D3 E12 B/6 : Accelerator pedal position sensor A2 E38 L/4 : Daytime running light relay 2
C3 E13 W/4 : Stop lamp switch (With CVT) D2 E48 W/4 : Clutch pedal position switch
B3 E14 L/12 : Joint connector–E03 D3 E57 B/2 : Stop lamp switch (With M/T)
AAMIA0188ZZ
AAMIA0383ZZ
PG
AAMIA0190ZZ
I
AAMIA0191ZZ
AAMIA0192ZZ
I
AAMIA0193ZZ
PG
AAMIA0194ZZ
I
AAMIA0384ZZ
PG
P
D3 D501 B/6 : Rear view camera C3 D506 BR/2 : Back door request switch
D3 D502 W/4 : Rear wiper motor D3 D507 BR/2 : License plate lamp LH
E3 D503 W/8 : To B53 C4 D508 BR/2 : License plate lamp RH
E4 D504 W/4 : To B52 E5 D509 W/3 : Back door switch
D4 D505 W/2 : Back door lock actuator
AAMIA2767GB
PG
ABMIA7435GB
AAMIA0161ZZ
H
MEL040F
ELA0349D L
PG
BATTERY DIAGNOSIS WITH EXP-800 NI OR GR8-1200 NI
To diagnose and confirm the condition of the battery, use the following special service tools:
• EXP-800 NI Battery and electrical diagnostic analyzer N
• GR8-1200 NI Multitasking battery and electrical diagnostic station
NOTE:
Refer to the applicable Instruction Manual for proper battery diagnosis procedures.
O
BATTERY DIAGNOSIS WITHOUT EXP-800 NI OR GR8-1200 NI
Checking Electrolyte Level
WARNING: P
Never allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, never touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
Failure to do this may cause personal injury or damage to clothing or the painted surfaces.
MEL043F
SULFATION
• A battery will be completely discharged if it is left unattended
for a long time and the specific gravity will become less than
1.100. This may result in sulfation on the cell plates.
• To determine if a battery has been “sulfated”, note its voltage
and current when charging it. As shown in the figure, less cur-
rent and higher voltage are observed in the initial stage of
charging sulfated batteries.
• A sulfated battery may sometimes be brought back into ser-
vice by means of a long, slow charge, 12 hours or more, fol-
lowed by a battery capacity test.
PKIA2353E
MEL042FA
CEL083 E
EXTENDED STORAGE SWITCH (IF EQUIPPED)
NOTE:
• When extended storage switch is pulled out, a message may be shown in the meter or display. To turn mes- F
sage/display off, push extended storage switch in.
• The following information is related to extended storage switch (shipping mode). For information related to
BCM transit mode, refer to BCS-15, "TRANSIT MODE CONTROL SYSTEM : System Description".
G
The following switch may be mounted on the fuse block (Junction Box) for transportation and storage.
PG
JSMIA0793ZZ P
JSMIA0472ZZ
- To turn the extended storage switch OFF, pull out in direction as shown in the figure.
- To turn the extended storage switch ON, press in direction as shown in the figure.
• Type B
JSMIA0473ZZ
- To turn the extended storage switch OFF, pinch tabs of the switch and pull out in direction as shown in
the figure.
- To turn the extended storage switch ON, press in direction as shown in the figure.
• Type C
JSMIA0794ZZ
- To turn the extended storage switch OFF, pull out in direction as shown in the figure.
- To turn the extended storage switch ON, press in direction as shown in the figure.
JSMIA0476ZZ
E
CAUTION:
For bus bar type extended storage switch, never replace bus bar with a fuse, or fuse may continu- F
ally open.
NOTE:
• Extended storage switch and fuse (or bus bar) are removed together. Remove fuse (or bus bar) from G
extended storage switch, if necessary.
• Install removed fuse (or bus bar) to fuse block.
• Extended storage switch is for transportation and storage. Reinstallation of switch is not required after
removal, but fuse (or bus bar) must be reinstalled/pushed back in to activate all electrical systems and H
turn message off (which may be shown in meter/display).
Type B
I
1. Turn the ignition switch OFF.
2. Turn the extended storage switch OFF.
3. Pinch tabs and firmly pull out the extended storage switch in
direction. J
JSMIA0477ZZ
PG
CAUTION:
For bus bar type extended storage switch, never replace bus bar with a fuse, or fuse may continu-
ally open. N
NOTE:
• Extended storage switch and fuse (or bus bar) may be removed together. Remove fuse (or bus bar)
from extended storage switch, if necessary. O
• Install removed fuse (or bus bar) to fuse block.
• Extended storage switch is for transportation and storage. Reinstallation of switch is not required after
removal, but fuse (or bus bar) must be reinstalled/pushed back in to activate all electrical systems and
turn message off (which may be shown in meter/display). P
Type C
1. Turn the ignition switch OFF.
2. Turn the extended storage switch OFF.
JSMIA0795ZZ
CAUTION:
For bus bar type extended storage switch, never replace bus bar with a fuse, or fuse may continu-
ally open.
NOTE:
• Extended storage switch and fuse (or bus bar) are removed together. Remove fuse (or bus bar) from
extended storage switch, if necessary.
• Install removed fuse (or bus bar) to fuse block.
• Extended storage switch is for transportation and storage. Reinstallation of switch is not required after
removal, but fuse (or bus bar) must be reinstalled/pushed back in to activate all electrical systems and
turn message off (which may be shown in meter/display).
1 : Fusible link C
: Vehicle front
CAUTION: D
• 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 malfunc-
tion. AAMIA0805GB E
• Never wrap outside of fusible link with vinyl tape. Important: Never let fusible link touch any other
wiring harness, vinyl or rubber parts.
F
PG
AWGIA0296ZZ
CAUTION:
To prevent damage to the parts, disconnect the battery cable from the negative terminal first.
REMOVAL
1. Remove the air duct inlet. Refer to EM-26, "Exploded View".
2. Disconnect the battery cable from the negative terminal and set aside.
3. Disconnect the battery cable from the positive terminal and set aside.
4. Remove the battery wedge bracket.
5. Remove the battery cover and the battery.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace the battery if it has been dropped or sustained and impact.
To install the battery, carefully read the following instructions:
• To prevent damage to the parts, connect the battery cable to the positive terminal first.
• After connecting battery cables, to securely supply battery voltage, ensure that they are tightly
clamped to battery terminals for good contact.
• To securely supply battery voltage, check battery terminal for poor connection caused by corrosion.
Reset electronic systems as necessary. Refer to PG-64, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
A
CAUTION:
To prevent damage to the parts, disconnect the battery cable from the negative terminal first.
REMOVAL B
1. Remove the battery. Refer to PG-70, "Removal and Installation (Battery)".
2. Remove the battery tray bracket. Refer to PG-70, "Exploded View".
C
3. Remove the IPDM E/R. Refer to PCS-30, "Removal and Installation".
4. Disconnect the harness from the TCM and remove the TCM bracket. Refer to TM-239, "Removal and
Installation" (FOR CVT MODEL).
D
5. Disconnect the harness from the battery tray.
6. Remove the nuts and bolts and remove the battery tray. Refer to PG-70, "Exploded View".
INSTALLATION E
Installation is in the reverse order of removal.
CAUTION:
Replace electrical components as necessary, if any have been dropped or sustained and impact. F
To install the battery, carefully read the following instructions:
• To prevent damage to the parts, connect the battery cable to the positive terminal first.
• After connecting battery cables, to securely supply battery voltage, ensure that they are tightly
clamped to battery terminals for good contact. G
• To securely supply battery voltage, check battery terminal for poor connection caused by corrosion.
Reset electronic systems as necessary. Refer to PG-64, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement". H
PG
AWGIA0297ZZ
CAUTION:
To prevent damage to the parts, disconnect the battery cable from the negative terminal first.
REMOVAL
1. Disconnect the battery cable from the negative terminal and set aside. Refer to PG-70, "Exploded View".
2. Disconnect the battery cable with the fusible link box (battery) from positive terminal.
3. Open cover of the fusible link box (battery).
4. Remove harness nut from the fusible link box (battery) and separate the fusible link box (battery) from ter-
minal connector.
5. Disconnect harness connectors and remove the fusible link box (battery).
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Replace the fusible link box (battery) if it has been dropped or sustained and impact.
To install the battery, carefully read the following instructions:
• To prevent damage to the parts, connect the battery cable to the positive terminal first.
• After connecting battery cables, to securely supply battery voltage, ensure that they are tightly
clamped to battery terminals for good contact.
• To securely supply battery voltage, check battery terminal for poor connection caused by corrosion.
Reset electronic systems as necessary. Refer to PG-64, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
I
AWGIA0298ZZ
CAUTION:
To prevent damage to the parts, disconnect the battery cable from the negative terminal first.
L
REMOVAL
1. Disconnect the battery cable from the negative terminal. Refer to PG-70, "Exploded View".
2. Remove current sensor nut and separate the current sensor from terminal connector. PG
3. Disconnect harness connector and remove the current sensor.
INSTALLATION N
Installation is in the reverse order of removal.
CAUTION:
Replace the current sensor if it has been dropped or sustained and impact.
To install the battery, carefully read the following instructions: O
• To prevent damage to the parts, connect the battery cable to the positive terminal first.
• After connecting battery cables, to securely supply battery voltage, ensure that they are tightly
clamped to battery terminals for good contact. P
• To securely supply battery voltage, check battery terminal for poor connection caused by corrosion.
Reset electronic systems as necessary. Refer to PG-64, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
Type T4
5 hour rate minimum [V – Ah] 12 – 36
Cold cranking current A (For reference value) A 470
*: Always check with the Parts Department for the latest parts information.