battery INFINITI QX56 2008 Factory Service Manual

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QUICK REFERENCE INDEX
AGENERAL INFORMATIONGIGeneral Information
BENGINEEMEngine Mechanical
LUEngine Lubrication System
COEngine Cooling System
ECEngine Control System
FLFuel System
EXExhaust System
STRStarting System
ACCAccelerator Control System
CHYBRIDHBCHybrid Control System
HBBHybrid Battery System
HBRHybrid Brake System
DTRANSMISSION & DRIVE-
LINETMTransaxle & Transmission
DLNDriveline
FAXFront Axle
RAXRear Axle
ESUSPENSIONFSUFront Suspension
RSURear Suspension
SCSSuspension Control System
WTRoad Wheels & Tires
FBRAKESBRBrake System
PBParking Brake System
BRCBrake Control System
GSTEERINGSTSteering System
STCSteering Control System
HRESTRAINTSSBSeat Belt
SBCSeat Belt Control System
SRSRS Airbag
SRCSRS Airbag Control System
IVENTILATION, HEATER &
AIR CONDITIONERVTLVentilation System
HAHeater & Air Conditioning System
HACHeater & Air Conditioning Control System
JBODY INTERIORINTInterior
IPInstrument Panel
SESeat
ADPAutomatic Drive Postioner
APAdjustable Pedal
KBODY EXTERIOR,
DOORS, ROOF & VEHICLE
SECURITYDLKDoor & Lock
SECSecurity Control System
GWGlass & Window System
PWCPower Window Control System
RFRoof
EXTExterior
BRMBody Repair Manual
LDRIVER CONTROLSMIRMirrors
EXLExterior Lighting System
INLInterior Lighting System
WWWiper & Washer
DEFDefogger
HRNHorn
MELECTRICAL & POWER
CONTROLPWOPower Outlet
BCSBody Control System
LANLAN System
PCSPower Control System
CHGCharging System
PGPower Supply, Ground & Circuit Elements
NDRIVER INFORMATION &
MULTIMEDIAMWIMeter, Warning Lamp & Indicator
WCSWarning Chime System
SNSonar System
AVAudio, Visual & Navigation System
OCRUISE CONTROLCCSCruise Control System
PMAINTENANCEMAMaintenance
All rights reserved. No part
of this Service Manual may
be reproduced or stored in a
retrieval system, or transmit-
ted in any form, or by any
means, electronic, mechani-
cal, photo-copying, record-
ing or otherwise, without the
prior written permission of
Nissan North America, Inc.
Edition: May 2007
Revision: March 2010
Publication No. SM8E-1J60U2

ACC-1
ENGINE
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SECTION ACC
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CONTENTS
ACCELERATOR CONTROL SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
REMOVAL AND INSTALLATION ................4
ACCELERATOR CONTROL SYSTEM ..............4
Removal and Installation ..................................... .....4
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ....
6
SERVICE DATA AND SPECIFICATIONS
(SDS) ..................................................................
6
Accelerator Control .............................................. .....6
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ACC-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000004874943
The Supplemental Restraint System such as “A IR 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, 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.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified by yellow and/or orange harnesses or har-
ness connectors.
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-
tion ON or engine running, DO NOT use air or electri c 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
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000004874942
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated.
4. Perform the necessary repair operation.
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PRECAUTIONSACC-3
< PRECAUTION >
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Revision: March 2010 2008 QX56

ACC-4
< REMOVAL AND INSTALLATION >
ACCELERATOR CONTROL SYSTEM
REMOVAL AND INSTALLATION
ACCELERATOR CONTROL SYSTEM
Removal and InstallationINFOID:0000000001534441
Adjustable Accelerator Pedal
CAUTION:
• Do not disassemble the accelerator pedal adjusting mechanism.
• Before removal and installation the accelerator and brake pedals must be in the frontmost position.
This is to align the base position of the accelerator and brake pedals.
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor from the accelerator pedal bracket.
• Avoid damage from dropping the accel erator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
REMOVAL
1. Move the accelerator and brake pedals to the frontmost position.
2. Turn the ignition switch OFF and disconnect the negative battery terminal.
3. Disconnect the adjustable brake pedal cable from the adjustable brake pedal. • Unlock, then pull the adjustable brake pedal cable to disconnect it from the adjustable brake pedal.
LBIA0379E
1. Adjustable accelerator pedal assem-
bly 2. A/T control cable mounting bracket (part
of the accelerator pedal assembly) 3. Adjustable pedal electric motor (part
of the accelerator pedal assembly)
4. Adjustable brake pedal cable (part of the accelerator pedal assembly)
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ADP-3
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ADP
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RECLINING SENSOR .................................... ....73
Description .......................................................... ....73
Component Function Check ..................................73
Diagnosis Procedure ..............................................73
LIFTING SENSOR (FRONT) ..............................75
Description .......................................................... ....75
Component Function Check ..................................75
Diagnosis Procedure ..............................................75
LIFTING SENSOR (REAR) ................................77
Description .......................................................... ....77
Component Function Check ..................................77
Diagnosis Procedure ..............................................77
TILT SENSOR ....................................................79
Description ..............................................................79
Component Function Check ..................................79
Diagnosis Procedure ..............................................79
PEDAL ADJUSTING SENSOR ..........................81
Description .......................................................... ....81
Component Function Check ..................................81
Diagnosis Procedure ..............................................81
MIRROR SENSOR .............................................83
DRIVER SIDE ........................................................ ....83
DRIVER SIDE : Description ....................................83
DRIVER SIDE : Component Function Check ........83
DRIVER SIDE : Diagnosis Procedure ....................83
PASSENGER SIDE ...................................................85
PASSENGER SIDE : Description ....................... ....85
PASSENGER SIDE :
Component Function Check ..................................
85
PASSENGER SIDE : Diagnosis Procedure ...........85
SLIDING MOTOR ...............................................87
Description ..............................................................87
Component Function Check ..................................87
Diagnosis Procedure ..............................................87
RECLINING MOTOR ..........................................89
Description .......................................................... ....89
Component Function Check ..................................89
Diagnosis Procedure ..............................................89
LIFTING MOTOR (FRONT) ................................91
Description .......................................................... ....91
Component Function Check ..................................91
Diagnosis Procedure ..............................................91
LIFTING MOTOR (REAR) ..................................93
Description .......................................................... ....93
Component Function Check ..................................93
Diagnosis Procedure ..............................................93
TILT MOTOR ......................................................95
Description .......................................................... ....95
Component Function Check ..................................95
Diagnosis Procedure ..............................................95
PEDAL ADJUSTING MOTOR ..........................97
Description ........................................................... ....97
Component Function Check ..................................97
Diagnosis Procedure ..............................................97
DOOR MIRROR MOTOR ..................................99
Description ...............................................................99
Component Function Check ....................................99
Diagnosis Procedure ...............................................99
Component Inspection ...........................................101
SEAT MEMORY INDICATOR LAMP ..............102
Description .............................................................102
Component Function Check ................................102
Diagnosis Procedure ............................................102
Component Inspection ...........................................103
ECU DIAGNOSIS .......................................104
DRIVER SEAT CONTROL UNIT ....................104
Reference Value .................................................. ..104
Wiring Diagram ......................................................109
Fail Safe ................................................................122
DTC Index .............................................................123
AUTOMATIC DRIVE POSITIONER CON-
TROL UNIT ......................................................
124
Reference Value ....................................................124
Wiring Diagram ......................................................127
BCM (BODY CONTROL MODULE) ...............141
Reference Value ....................................................141
Terminal Layout .....................................................143
Physical Values ................................................... ..143
Wiring Diagram ......................................................149
Fail Safe ................................................................152
DTC Inspection Priority Chart .............................153
DTC Index .............................................................153
SYMPTOM DIAGNOSIS ............................155
ADP SYSTEM SYMPTOMS ............................155
Symptom Table ................................................... ..155
NORMAL OPERATING CONDITION .............157
Description .............................................................157
PRECAUTION ............................................158
PRECAUTIONS ...............................................158
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
158
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
158
Precaution for Work ...............................................159
ON-VEHICLE MAINTENANCE ..................160
PRE-INSPECTION FOR DIAGNOSTIC ..........160
Basic Inspection .................................................. ..160
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DIAGNOSIS SYSTEM (DRIVER SEAT C/U)ADP-27
< FUNCTION DIAGNOSIS >
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ACTIVE TEST
CAUTION:
When driving vehicle, do not perform active test.
MIR CHNG SW–R “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to right) signal.
MIR CHNG SW–L “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (switching to left) signal.
TILT SW-UP “ON/OFF”×× ON/OFF status judged from the ADP steering switch (UP)
signal.
TILT SW-DOWN “ON/OFF”×× ON/OFF status judged from the ADP steering switch
(DOWN) signal.
PEDAL SW-FR “ON/OFF”×× ON/OFF status judged from the pedal adjusting switch (for-
ward) signal.
PEDAL SW-RR “ON/OFF”×× ON/OFF status judged from the pedal adjusting switch
(backward) signal.
DETENT SW “ON/OFF”×× The selector lever position “OFF (P position) / ON (other
than P position)” judged from the detention switch signal.
STARTER SW “ON/OFF”×× Ignition key switch ON (START, ON) /OFF (ACC, OFF) sta-
tus judged from the ignition switch signal.
SLIDE PULSE —–×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
RECLN PULSE —–×Value (32768) when battery connections are standard. If it
moves backward, the value increases. If it moves forward,
the value decreases.
LIFT FR PULSE —–×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
LIFT RR PULSE —–×Value (32768) when battery connections are standard. If it
moves DOWN, the value increases. If it moves UP, the val-
ue decreases.
MIR/SEN RH U–D “V”–×Voltage input from door mirror sensor (passenger side) up/
down is displayed.
MIR/SEN RH R–L “V”–×Voltage input from door mirror sensor (passenger side) left/
right is displayed.
MIR/SENLHU–D “V”–×Voltage input from door mirror
sensor (driver side) up/down
is displayed.
MIR/SENLHR–L “V”–×Voltage input from door mirror sensor (driver side) left/right
is displayed.
PEDAL SEN “V”–×Pedal position (voltage) judged from the pedal adjusting
sensor signal is displayed.
Monitor Item
UnitMain
Signals Selection
From
Menu Contents
Test item
Description
SEAT SLIDE Activates/deactivates the sliding motor.
SEAT RECLINING Activates/deactivates the reclining motor.
SEAT LIFTER FR Activates/deactivates the lifting motor (front).
SEAT LIFTER RR Activates/deactivates the lifting motor (rear).
ADJ PEDAL MOTOR Activates/deactivates the pedal adjusting motor.
TILT MOTOR Activates/deactivates the tilt motor.
MIRROR MOTOR RH Activates/deactivates the mirror motor (passenger side).
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B2117 ADJ PEDAL MOTORADP-35
< COMPONENT DIAGNOSIS >
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1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and pedal adjusting motor.
3. Check continuity between automatic drive positioner control unit connector M34 (A) terminals 37, 45 and pedal adjusting motor
connector E109 (B) terminals 1, 2.
4. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 37, 45 and ground.
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITION ER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit and pedal adjusting motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
Is the inspection result normal?
YES >> Replace pedal adjusting motor.
NO >> GO TO 5
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic driv e positioner control unit.
NO >> Repair or replace the malfunctioning part. 37 - 1
: Continuity should exist.
45 - 2 : Continuity should exist.
37 - Ground : Continuity should not exist.
45 - Ground : Continuity should not exist.
ALJIA0195ZZ
Connec-
tor Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 37
Ground Pedal adjusting switch ON
(FORWARD operation)
Battery voltage
Other than above 0
45 Pedal adjusting switch ON
(BACKWARD operation)
Battery voltage
Other than above 0
PIIA4806E
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ADP-44
< COMPONENT DIAGNOSIS >
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM
BCM : Diagnosis ProcedureINFOID:0000000001735461
Refer to BCS-32, "Diagnosis Procedure".
BCM : Special Repair RequirementINFOID:0000000001735462
1. REQUIRED WORK WHEN REPLACING BCM
Initialize control unit. Refer to CONSULT-III Operation Manual.
>> Work end.
DRIVER SEAT CONTROL UNIT
DRIVER SEAT CONTROL UN IT : Diagnosis ProcedureINFOID:0000000001735463
NOTE:
Do not disconnect the battery negative terminal and the driver seat control unit connector until DTC is con-
firmed with CONSULT-III.
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit harness connec- tor and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check the following. • Repair or replace harness between driver seat control unit and fuse block (J/B).
• Circuit breaker.
2. CHECK GROUND CIRCUIT
Check continuity between the driver seat control unit harness con-
nector and ground.
Is the inspection result normal?
YES >> Driver seat control unit power supply and ground circuit are OK.
NO >> Repair or replace harness.
Te r m i n a l s
Power
source ConditionVoltage (V)
(Approx.)
(+)
(–)
Driver seat
control unit connector Te r m i n a l
B202 6
Ground START
power sup-
ply Ignition
switch
START Battery
voltage
B203 33
Battery
power sup- ply Ignition
switch OFF
40
LIIA1897E
Driver seat control unit
connector Te r m i n a l
Ground Continuity
B202 32
Ye s
B203 48
PIIA4542E
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POWER SUPPLY AND GROUND CIRCUITADP-45
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DRIVER SEAT CONTROL UNIT : Special Repair RequirementINFOID:0000000001735464
1.PERFORM ADDITIONAL SERVICE
Perform additional service when removing battery negative terminal.
>> Refer to Owner’s Manual.
AUTOMATIC DRIVE POSITIONER CONTROL UNIT
AUTOMATIC DRIVE POSITIONER CO NTROL UNIT : Diagnosis Procedure
INFOID:0000000001735465
NOTE:
Do not disconnect the battery negative terminal and the dr iver seat control unit connector until DTC is con-
firmed with CONSULT-III.
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit
harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness.
2.CHECK GROUND CIRCUIT
Check continuity between the automatic drive positioner control unit
harness connector and ground.
Is the inspection result normal?
YES >> Automatic drive positioner control unit power supply and ground circuit are OK.
NO >> Repair or replace harness.
AUTOMATIC DRIVE POSITIONER CONTRO L UNIT : Special Repair Requirement
INFOID:0000000001735466
1.PERFORM ADDITIONAL SERVICE
Perform additional service when removing battery negative terminal.
>> Refer to Owner’s Manual.
Te r m i n a l s Voltage (V)(Approx.)
(+)
(–)
Automatic drive positioner
control unit connector Te r m i n a l
M33 34
Ground Battery voltage
39
PIIA4543E
Automatic drive positioner
control unit connector Te r m i n a l
GroundContinuity
M33 40
Ye s
48
PIIA4544E
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