INFINITI QX56 2008 Factory User Guide

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)
Revision: March 2010 2008 QX56

ACCELERATOR CONTROL SYSTEMACC-5
< REMOVAL AND INSTALLATION >
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4. Disconnect the adjustable pedal electric motor electrical connec-
tor.
5. Disconnect the adjustable pedal electric motor memory electri- cal connector.
6. Disconnect the accelerator position sensor electrical connector.
7. Remove the two upper and one lower accelerator pedal nuts.
8. Remove the adjustable accelerator pedal assembly. CAUTION:
• Do not disassemble the accelerator pedal assembly.
• Do not remove the accelerator pedal position sensor fromthe accelerator pedal bracket.
• Do not disassemble the accelerator pedal adjusting mechanism.
• Avoid damage from dropping the acceler ator pedal assembly during handling.
• Keep the accelerator pedal assembly away from water.
INSTALLATION
Installation is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Check that the accelerator pedal move s smoothly within the specified ranges.
• Depress and release the accelerator pedal to check that it returns smoothly to the original released position.
• Perform an electrical inspection of the accelerator pedal position sensor. Refer to EC-197, "
Component
Inspection".
CAUTION:
When the harness connector of the accelerator pedal position sensor is disco\
nnected, perform
“Accelerator Pedal Released Position Learning”. Refer to EC-63, "
CONSULT-III Function (ENGINE)".
LBIA0380E
Adjustable accelerator pedal – total pedal applied stroke : 48.3 mm (1.90 in)
Adjustable accelerator pedal – total pedal adjustment travel : 73.2 mm (2.88 in)
Revision: March 2010 2008 QX56

ACC-6
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Accelerator ControlINFOID:0000000001534442
ADJUSTABLE ACCELERATOR PEDAL
Total Pedal Travel and StrokeUnit: mm (in)
Adjustable accelerator pedal - total pedal applied stroke48.3 (1.90)
Adjustable accelerator pedal - total pedal adjustment travel 73.2 (2.88)
Revision: March 2010 2008 QX56

ADP-1
BODY INTERIOR
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SECTION ADP
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CONTENTS
AUTOMATIC DRIVE POSITIONER
BASIC INSPECTION ....... .............................5
DIAGNOSIS AND REPAIR WORKFLOW ..... .....5
Work Flow ........................................................... ......5
INSPECTION AND ADJUSTMENT .....................8
Preliminary Check ............................................... ......8
Special Repair Requirement .....................................8
FUNCTION DIAGNOSIS .. .............................9
AUTOMATIC DRIVE POSITIONER SYSTEM .....9
AUTOMATIC DRIVE POSITIONER SYSTEM ....... ......9
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram ........................................................
9
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Parts Location ......................................
10
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description .................................................
10
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Description ..........................................
11
MANUAL FUNCTION ............................................ ....12
MANUAL FUNCTION : System Diagram ................13
MANUAL FUNCTION : System Description ............13
MANUAL FUNCTION : Component Parts Loca-
tion ..........................................................................
15
MANUAL FUNCTION : Component Description ....15
MEMORY FUNCTION ........................................... ....16
MEMORY FUNCTION : System Diagram ...............17
MEMORY FUNCTION : System Description ..........17
MEMORY FUNCTION : Component Parts Loca-
tion ..........................................................................
18
MEMORY FUNCTION : Component Description ....19
EXIT ASSIST FUNCTION ...................................... ....20
EXIT ASSIST FUNCTION : System Diagram .........20
EXIT ASSIST FUNCTION : System Description . ....20
EXIT ASSIST FUNCTION : Component Parts Lo-
cation .......................................................................
21
EXIT ASSIST FUNCTION :
Component Description ...................................... ....
22
ENTRY ASSIST FUNCTION .................................. ....22
ENTRY ASSIST FUNCTION : System Diagram .....23
ENTRY ASSIST FUNCTION : System Description
....
23
ENTRY ASSIST FUNCTION : Component Parts
Location ...................................................................
24
ENTRY ASSIST FUNCTION :
Component Description ..........................................
25
DIAGNOSIS SYSTEM (DRIVER SEAT C/U) ....26
Diagnosis Description ..............................................26
CONSULT-III Function ............................................26
COMPONENT DIAGNOSIS .........................29
U1000 CAN COMM CIRCUIT ...........................29
Description ........................................................... ....29
DTC Logic ................................................................29
Diagnosis Procedure ..............................................29
Special Repair Requirement ....................................29
B2112 SLIDING MOTOR ..................................30
Description ...............................................................30
DTC Logic ................................................................30
Diagnosis Procedure ..............................................30
B2113 RECLINING MOTOR .............................31
Description ...............................................................31
DTC Logic ................................................................31
Diagnosis Procedure ..............................................31
B2114 SEAT LIFTER FR ..................................32
Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure ..............................................32
B2115 SEAT LIFTER RR ..................................33
Description ...............................................................33
DTC Logic ................................................................33
Revision: March 2010 2008 QX56

ADP-2
Diagnosis Procedure .............................................33
B2117 ADJ PEDAL MOTOR .............................34
Description ..............................................................34
DTC Logic ...............................................................34
Diagnosis Procedure .............................................34
B2118 TILT SENSOR ........................................36
Description ........................................................... ...36
DTC Logic ...............................................................36
Diagnosis Procedure .............................................36
B2120 ADJ PEDAL SENSOR ...........................38
Description ........................................................... ...38
DTC Logic ...............................................................38
Diagnosis Procedure .............................................38
B2126 DETENT SW ...........................................40
Description ........................................................... ...40
DTC Logic ...............................................................40
Diagnosis Procedure .............................................40
B2128 UART COMMUNICATION LINE ............42
Description ........................................................... ...42
DTC Logic ...............................................................42
Diagnosis Procedure .............................................42
POWER SUPPLY AND GROUND CIRCUIT .....44
BCM ........................................................................ ...44
BCM : Diagnosis Procedure ...................................44
BCM : Special Repair Requirement ........................44
DRIVER SEAT CONTROL UNIT ........................... ...44
DRIVER SEAT CONTROL UNIT :
Diagnosis Procedure .............................................
44
DRIVER SEAT CONTROL UNIT : Special Repair
Requirement ........................................................ ...
45
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT ....................................................................... ...
45
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure ............................... ...
45
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Special Repair Re quirement .......................
45
SLIDING SWITCH ..............................................46
Description ........................................................... ...46
Component Function Check .................................46
Diagnosis Procedure .............................................46
Component Inspection ............................................47
RECLINING SWITCH ........................................48
Description ........................................................... ...48
Component Function Check .................................48
Diagnosis Procedure .............................................48
Component Inspection ............................................49
LIFTING SWITCH (FRONT) ..............................50
Description ........................................................... ...50
Component Function Check .................................50
Diagnosis Procedure .............................................50
Component Inspection ......................................... ...51
LIFTING SWITCH (REAR) ................................52
Description ........................................................... ...52
Component Function Check ..................................52
Diagnosis Procedure ..............................................52
Component Inspection ............................................53
TILT SWITCH ....................................................54
Description ........................................................... ...54
Component Function Check ..................................54
Diagnosis Procedure ..............................................54
Component Inspection ............................................55
PEDAL ADJUSTING SWITCH ..........................56
Description ........................................................... ...56
Component Function Check ..................................56
Diagnosis Procedure ..............................................56
Component Inspection ............................................58
SEAT MEMORY SWITCH .................................59
Description ..............................................................59
Component Function Check ..................................59
Diagnosis Procedure ..............................................59
Component Inspection ............................................60
DOOR MIRROR REMOTE CONTROL
SWITCH .............................................................
61
CHANGEOVER SWITCH ....................................... ...61
CHANGEOVER SWITCH : Description ..................61
CHANGEOVER SWITCH : Component Function
Check ......................................................................
61
CHANGEOVER SWITCH : Diagnosis Procedure ...61
CHANGEOVER SWITCH : Component Inspec-
tion ..........................................................................
62
MIRROR SWITCH .................................................. ...63
MIRROR SWITCH : Description .............................63
MIRROR SWITCH : Component Function Check ...63
MIRROR SWITCH : Diagnosis Procedure ..............63
MIRROR SWITCH : Component Inspection ...........65
POWER SEAT SWITCH GROUND CIRCUIT ...66
Diagnosis Procedure ..............................................66
DETENTION SWITCH .......................................67
Description ........................................................... ...67
Component Function Check ..................................67
Diagnosis Procedure ..............................................67
FRONT DOOR SWITCH (DRIVER SIDE) .........69
Description ........................................................... ...69
Component Function Check ...................................69
Diagnosis Procedure ...............................................69
Component Inspection ............................................69
SLIDING SENSOR ............................................71
Description ..............................................................71
Component Function Check ..................................71
Diagnosis Procedure ..............................................71
Revision: March 2010 2008 QX56

ADP-3
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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
Revision: March 2010 2008 QX56

ADP-4
PREPARATION ..........................................162
PREPARATION .............................................. .162
Special Service Tool ............................................ ..162
Commercial Service Tool ......................................162
REMOVAL AND INSTALLATION .............163
AUTOMATIC DRIVE POSITIONER ............... ..163
Removal and Installation .......................................163
Revision: March 2010 2008 QX56

DIAGNOSIS AND REPAIR WORKFLOWADP-5
< BASIC INSPECTION >
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001735407
WORK FLOW
DETAILED FLOW
ALKIA0538GB
Revision: March 2010 2008 QX56

ADP-6
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
1. GET INFORMATION FOR SYMPTOM
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred).
>> GO TO 2
2. CHECK DTC WITH AUTOMATIC DRIVE POSITIONER SYSTEM
Check “Self Diagnostic Result” with CONSULT-III.
Refer to ADP-123, "
DTCIndex".
Is any symptom described and any DTC is displayed?
Symptom is described, DTC is displayed.>>GO TO 3
Symptom is not described, DTC is displayed.>>GO TO 7
Symptom is described, DTC is not displayed.>>GO TO 4
3. CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
>> GO TO 7
4. CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer.
>> GO TO 5
5. CHECK NORMAL OPERATING CONDITION
Check normal operating condition. Refer to ADP-157, "
Description".
Is the incident normal operation?
YES >> INSPECTION END
NO >> GO TO 6
6. PERFORM BASIC INSPECTION
Isolate the malfunctioning point with the basic inspection. Refer to ADP-8, "
Preliminary Check".
>> GO TO 8
7. PERFORM DTC CONFIRMATION PROCEDURE
Perform the confirmation procedure for the detected DTC.
Is the DTC displayed?
YES >> GO TO 9
NO >> Check intermittent incident. Refer to GI-38, "
Intermittent Incident".
8. PERFORM COMPONENT FUNCTION CHECK
Perform the component function check for the isolated malfunctioning point.
>> GO TO 9
9. DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE
Isolate the malfunctioning point by performing the di agnosis procedure relevant to the symptom during the
component diagnosis.
>> GO TO 10
10. REPAIR OR REPLACE
Repair or replace the malfunctioning part.
Revision: March 2010 2008 QX56