2009 INFINITI QX56 seat memory

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
PRE-INSPECTION FOR DIAGNOSTIC ..............9
Basic Inspection .................................................. ......9
FUNCTION DIAGNOSIS ..............................11
AUTOMATIC DRIVE POSITIONER SYSTEM ....11
AUTOMATIC DRIVE POSITIONER SYSTEM ....... ....11
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Diagram ......................................................
11
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Parts Location ......................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description .................................................
12
AUTOMATIC DRIVE POSITIONER SYSTEM :
Component Description ..........................................
13
MANUAL FUNCTION ............................................ ....14
MANUAL FUNCTION : System Diagram ................15
MANUAL FUNCTION : System Description ............15
MANUAL FUNCTION : Component Parts Loca-
tion ..........................................................................
17
MANUAL FUNCTION : Component Description ....17
MEMORY FUNCTION ........................................... ....18
MEMORY FUNCTION : System Diagram ...............19
MEMORY FUNCTION : System Description ..........19
MEMORY FUNCTION : Component Parts Loca-
tion ..........................................................................
20
MEMORY FUNCTION : Component Description ....21
EXIT ASSIST FUNCTION ...................................... ....22
EXIT ASSIST FUNCTION : System Diagram .........22
EXIT ASSIST FUNCTION : Sy stem Description .....22
EXIT ASSIST FUNCTION : Component Parts Lo-
cation ................................................................... ....
23
EXIT ASSIST FUNCTION :
Component Description ..........................................
24
ENTRY ASSIST FUNCTION .................................. ....24
ENTRY ASSIST FUNCTION : System Diagram .....25
ENTRY ASSIST FUNCTION : System Description
....
25
ENTRY ASSIST FUNCTION : Component Parts
Location ............................................................... ....
26
ENTRY ASSIST FUNCTION :
Component Description ..........................................
27
DIAGNOSIS SYSTEM (DRIVER SEAT C/U) ....28
Diagnosis Description ..............................................28
CONSULT-III Function ............................................28
COMPONENT DIAGNOSIS .........................31
U1000 CAN COMM CIRCUIT ...........................31
Description ........................................................... ....31
DTC Logic ................................................................31
Special Repair Requirement ....................................31
B2112 SLIDING MOTOR ..................................32
Description ...............................................................32
DTC Logic ................................................................32
Diagnosis Procedure ..............................................32
B2113 RECLINING MOTOR .............................33
Description ...............................................................33
DTC Logic ................................................................33
Diagnosis Procedure ..............................................33
B2114 SEAT LIFTER FR ..................................34
Description ...............................................................34
DTC Logic ................................................................34
Diagnosis Procedure ..............................................34
B2115 SEAT LIFTER RR ..................................35
Description ...............................................................35
Revision: December 20092009 QX56

ADP-2
DTC Logic ...............................................................35
Diagnosis Procedure .............................................35
B2117 ADJ PEDAL MOTOR .............................36
Description ........................................................... ...36
DTC Logic ...............................................................36
Diagnosis Procedure .............................................36
B2118 TILT SENSOR ........................................38
Description ........................................................... ...38
DTC Logic ...............................................................38
Diagnosis Procedure .............................................38
B2120 ADJ PEDAL SENSOR ...........................40
Description ........................................................... ...40
DTC Logic ...............................................................40
Diagnosis Procedure .............................................40
B2126 DETENT SW ...........................................42
Description ........................................................... ...42
DTC Logic ...............................................................42
Diagnosis Procedure .............................................42
B2128 UART COMMUNICATION LINE ............44
Description ........................................................... ...44
DTC Logic ...............................................................44
Diagnosis Procedure .............................................44
POWER SUPPLY AND GROUND CIRCUIT .....46
BCM ........................................................................ ...46
BCM : Diagnosis Procedure ...................................46
DRIVER SEAT CONTROL UNIT ........................... ...46
DRIVER SEAT CONTROL UNIT :
Diagnosis Procedure .............................................
47
DRIVER SEAT CONTROL UNIT : Special Repair
Requirement ........................................................ ...
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT ....................................................................... ...
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure ..................................
47
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Special Repair Requirement .......................
48
SLIDING SWITCH ..............................................49
Description ........................................................... ...49
Component Function Check .................................49
Diagnosis Procedure .............................................49
Component Inspection ............................................50
RECLINING SWITCH ........................................51
Description ........................................................... ...51
Component Function Check .................................51
Diagnosis Procedure .............................................51
Component Inspection ............................................52
LIFTING SWITCH (FRONT) ..............................53
Description ........................................................... ...53
Component Function Check .................................53
Diagnosis Procedure .............................................53
Component Inspection ......................................... ...54
LIFTING SWITCH (REAR) ................................55
Description ........................................................... ...55
Component Function Check ..................................55
Diagnosis Procedure ..............................................55
Component Inspection ............................................56
TILT SWITCH ....................................................57
Description ........................................................... ...57
Component Function Check ..................................57
Diagnosis Procedure ..............................................57
Component Inspection ............................................58
PEDAL ADJUSTING SWITCH ..........................59
Description ........................................................... ...59
Component Function Check ..................................59
Diagnosis Procedure ..............................................59
Component Inspection ............................................61
SEAT MEMORY SWITCH .................................62
Description ........................................................... ...62
Component Function Check ..................................62
Diagnosis Procedure ..............................................62
Component Inspection ............................................63
DOOR MIRROR REMOTE CONTROL
SWITCH .............................................................
64
CHANGEOVER SWITCH ....................................... ...64
CHANGEOVER SWITCH : Description ..................64
CHANGEOVER SWITCH : Component Function
Check ......................................................................
64
CHANGEOVER SWITCH : Diagnosis Procedure ...64
CHANGEOVER SWITCH : Component Inspec-
tion ..........................................................................
65
MIRROR SWITCH .................................................. ...66
MIRROR SWITCH : Description .............................66
MIRROR SWITCH : Component Function Check ...66
MIRROR SWITCH : Diagnosis Procedure ..............66
MIRROR SWITCH : Component Inspection ...........68
POWER SEAT SWITCH GROUND CIRCUIT ...69
Diagnosis Procedure ..............................................69
DETENTION SWITCH .......................................70
Description ........................................................... ...70
Component Function Check ..................................70
Diagnosis Procedure ..............................................70
FRONT DOOR SWITCH (DRIVER SIDE) .........72
Description ........................................................... ...72
Component Function Check ...................................72
Diagnosis Procedure ...............................................72
Component Inspection ............................................72
SLIDING SENSOR ............................................74
Description ........................................................... ...74
Component Function Check ..................................74
Diagnosis Procedure ..............................................74
Revision: December 20092009 QX56

ADP-3
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RECLINING SENSOR .................................... ....76
Description .......................................................... ....76
Component Function Check ..................................76
Diagnosis Procedure ..............................................76
LIFTING SENSOR (FRONT) ..............................78
Description .......................................................... ....78
Component Function Check ..................................78
Diagnosis Procedure ..............................................78
LIFTING SENSOR (REAR) ................................80
Description .......................................................... ....80
Component Function Check ..................................80
Diagnosis Procedure ..............................................80
TILT SENSOR ....................................................82
Description .......................................................... ....82
Component Function Check ..................................82
Diagnosis Procedure ..............................................82
PEDAL ADJUSTING SENSOR ..........................84
Description .......................................................... ....84
Component Function Check ..................................84
Diagnosis Procedure ..............................................84
MIRROR SENSOR .............................................86
DRIVER SIDE ........................................................ ....86
DRIVER SIDE : Description ....................................86
DRIVER SIDE : Component Function Check ........86
DRIVER SIDE : Diagnosis Procedure ....................86
PASSENGER SIDE ...................................................88
PASSENGER SIDE : Description ....................... ....88
PASSENGER SIDE :
Component Function Check ..................................
88
PASSENGER SIDE : Diagnosis Procedure ...........88
SLIDING MOTOR ...............................................90
Description .......................................................... ....90
Component Function Check ..................................90
Diagnosis Procedure ..............................................90
RECLINING MOTOR ..........................................92
Description .......................................................... ....92
Component Function Check ..................................92
Diagnosis Procedure ..............................................92
LIFTING MOTOR (FRONT) ................................94
Description .......................................................... ....94
Component Function Check ..................................94
Diagnosis Procedure ..............................................94
LIFTING MOTOR (REAR) ..................................96
Description .......................................................... ....96
Component Function Check ..................................96
Diagnosis Procedure ..............................................96
TILT MOTOR ......................................................98
Description .......................................................... ....98
Component Function Check ..................................98
Diagnosis Procedure ..............................................98
PEDAL ADJUSTING MOTOR ........................100
Description ........................................................... ..100
Component Function Check ................................100
Diagnosis Procedure ............................................100
DOOR MIRROR MOTOR ................................102
Description .............................................................102
Component Function Check ..................................102
Diagnosis Procedure .............................................102
Component Inspection ...........................................104
SEAT MEMORY INDICATOR LAMP ..............105
Description .............................................................105
Component Function Check ................................105
Diagnosis Procedure ............................................105
Component Inspection ...........................................106
ECU DIAGNOSIS .......................................107
DRIVER SEAT CONTROL UNIT ....................107
Reference Value .................................................. ..107
Wiring Diagram ......................................................112
Fail Safe ................................................................126
DTC Index .............................................................127
AUTOMATIC DRIVE POSITIONER CON-
TROL UNIT ......................................................
128
Reference Value ....................................................128
Wiring Diagram ......................................................131
BCM (BODY CONTROL MODULE) ...............146
Reference Value ....................................................146
Terminal Layout .....................................................148
Physical Values .....................................................148
Wiring Diagram ......................................................154
SYMPTOM DIAGNOSIS ............................159
ADP SYSTEM SYMPTOMS ............................159
Symptom Table ................................................... ..159
NORMAL OPERATING CONDITION .............161
Description .............................................................161
PRECAUTION ............................................162
PRECAUTIONS ...............................................162
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
162
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
162
Precaution for Work ...............................................163
PREPARATION .........................................164
PREPARATION ...............................................164
Special Service Tool ............................................ ..164
Commercial Service Tool ......................................164
ON-VEHICLE REPAIR ...............................165
Revision: December 20092009 QX56

ADP-4
DRIVER SEAT CONTROL UNIT .....................165
Removal and Installation ..................................... ..165
AUTOMATIC DRIVE POSITIONER CON-
TROL UNIT ......................................................
166
Removal and Installation ..................................... ..166
SEAT MEMORY SWITCH ...............................167
Removal and Installation ..................................... ..167
DOOR MIRROR REMOTE CONTROL
SWITCH ............................................................
168
Removal and Installation ...................................... .168
PEDAL ADJUSTING MOTOR ..........................169
Removal and Installation ...................................... .169
TILT SWITCH ...................................................170
Removal and Installation ...................................... .170
Revision: December 20092009 QX56

PRE-INSPECTION FOR DIAGNOSTICADP-9
< BASIC INSPECTION >
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PRE-INSPECTION FOR DIAGNOSTIC
Basic InspectionINFOID:0000000004055281
1. CHECK POWER SUPPLY AND DROUND CIRCUIT
Check the power supply and ground circuit as shown below.
 Driver seat control unit: Refer to ADP-47, "DRIVER SEAT CONTROL UNIT : Diagnosis Procedure"
.
 Automatic drive positioner control unit: Refer to ADP-47, "AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure".
Is the inspection result normally?
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part.
2. CHECK MANUAL FUNCTION
Check the manual function operati ons by operating the relevant switches as shown below.
 Seat (slide, reclining, lifting front, lifting rear)
 Pedal assembly (forward, backward)
 Steering wheel (upward, downward)
 Door mirror
Do all manual functions operate normally?
YES >> GO TO 3
NO (Seat, pedal, door mirror)>>Go to SYMPTOM 1, refer to ADP-159, "Symptom Table"
. And, GO TO 4 if
the result of SYMPTOM 1 is OK.
3. CHECK MEMORY FUNCTION 1
Register the seat positions (refer to Owner’s Manual) and check that all parts of the seat, pedals, steering
wheel and door mirrors move to their memory positions correctly.
Are the operations normal?
YES >> Check each malfunction according to the instruction of the SYMPTOM 4, refer to ADP-159,
"Symptom Table".
No (memory indicator operates normally)>> Go to SYMPTOM 2, refer to ADP-159, "Symptom Table"
.
No (memory indicator does not operate normally either)>> GO TO 5
4. CHECK MEMORY FUNCTION 2
Register the seat positions (refer to Owner’s Manual) and check that all parts of the seat, pedals, steering
wheel and door mirrors move to their memory positions correctly.
Are the operations normal?
YES >> Check intermittent incident. Refer to GI-38, "Intermittent Incident".
NO >> GO TO 7
5. CHECK SEAT MEMORY SW ITCH/MEMORY INDICATOR
Check the seat memory switch/memory switch indicator of the SYMPTOM 5, refer to ADP-159, "Symptom
Table".
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair or replace the malfunctioning part.
6. CHECK OPERATION CONDITION
Check the memory operation conditions (refer to ADP-12, "AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description").
Are all operation conditions fulfilled?
YES >> Go to SYMPTOM 6, refer to ADP-159, "Symptom Table".
NO >> Fulfill the operation conditions. Refer to ADP-12, "AUTOMATIC DRIVE POSITIONER SYSTEM :
System Description".
7. CHECK MECHANISM
Check for the following.
Revision: December 20092009 QX56

ADP-12
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM
AUTOMATIC DRIVE POSITIONER SYST EM : Component Parts Location
INFOID:0000000003775495
AUTOMATIC DRIVE POSITIONER SYSTEM : System DescriptionINFOID:0000000003775496
OUTLINE
The system automatically moves the driver seat, pedal assembly, steering wheel and door mirror position by
the driver seat control unit and the automatic drive posit ioner control unit. The driver seat control unit corre-
sponds with the automatic drive positioner control unit by UART communication.
ALJIA0347ZZ
1. A. Automatic drive positioner control
unit M33, M34
B. Pedal adjustin g motor assembly
E109, E110 2. A. Steering column
B. Key switch and ignition knob
switch M12
C. BCM M18, M19, M20 (view with
instrument panel removed) 3. A. Door mirror remo
te control switch
D10
B. Seat memory switch D5
4. Pedal adjusting switch M96 5 . A. Door mirrror LH D4, RH D107
B. Front door switch LH B 6. A. A/T selector lever
B. A/T shift selector (park position
switch) M203
7. A. Sliding motor LH B204 (driver seat
view), reclining motor LH B205, lift-
ing motor (front) B2 06, lifting motor
(rear) B207
B. Driver seat control unit B202,
B203
C. Power seat switch LH B208 8. A. ADP steering switch M16
B. Tilt sensor M85 and tilt motor M86
Function Description
Manual function The driving position (seat, pedal assembly, steering wheel and door mirror position)
can be adjusted by using the power seat switch, pedal adjusting switch, ADP steering
switch or door mirror
remote control switch.
Memory function The seat, pedal assembly and outside mirror move to the stored driving position by
pressing seat memory switch (1 or 2).
Revision: December 20092009 QX56

AUTOMATIC DRIVE POSITIONER SYSTEMADP-13
< FUNCTION DIAGNOSIS >
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AUTOMATIC DRIVE POSITIONER SYSTEM : Component DescriptionINFOID:0000000003775497
CONTROL UNITS
INPUT PARTS
Switches
Entry/Exit assist functionExit On exit, the seat moves backward and the steering wheel moves upward.
Entry
On entry, the seat and steering wheel return from exiting position to the previous driv-
ing position.
Function Description
Item Function
Driver seat control unit  Main unit of automatic drive positioner system
 It is connected to the CAN.
 It communicates with the automatic drive positioner control unit via UART com-
munication.
Automatic drive positioner control unit  It communicates with the driver seat control unit via UART communication.
 Perform various controls with the instructions of driver seat control unit.
 Perform the controls of the pedal adjusting, steering wheel, door mirror and the
seat memory switch.
BCM Transmit the following status to the driver seat control unit via CAN communication.
 Front door LH: OPEN/CLOSE
 Ignition switch position: ACC/ON
 Door lock: UNLOCK (with Intelligent Key or remote keyless entry request switch
operation)
 Key ID
 Key switch: Insert/Pull out Intelligent Key
 Starter: CRANKING/OTHER
Combination meter Transmit the vehicle speed signal to the driver seat control unit via CAN communi-
cation.
AV control unit The setting change of auto drive positioner system can be performed on the display.
A/T shift selector (park position switch) Transmit the shift position signal (P range) to the driver seat control unit.
Item Function
Key switch and ignition knob switch The key switch is installed to detect the key inserted/removed status.
Front door switch LH Detect front door (driver side) open/close status.
A/T shift selector (park position switch) Detect the P range position of A/T selector lever.
Set switch The registration and system setting can be performed with its operation.
Seat memory switch 1/2 The registration and operation can be performed with its operation.
Power seat switch The following switch is installed.
 Reclining switch
 Lifting switch (front)
 Lifting switch (rear)
 Sliding switch
The specific parts can be operated with the operation of each switch.
Pedal adjusting switch The following switch is installed.
 Pedal forward
 Pedal backward
The specific parts can be operated with the operation of each switch.
Revision: December 20092009 QX56

ADP-14
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM
Sensors
OUTPUT PARTS
MANUAL FUNCTION
ADP steering switchThe following switch is installed.
 Steering wheel UP
 Steering wheel down
The specific parts can be operated with the operation of each switch.
Door mirror remote control switch The following switch is installed.
 Mirror switch
 Changeover switch
The specific parts can be operated with the operation of each switch.
Item Function
Item Function
Door mirror sensor (LH/RH) Detect the up/down and left/right position of outside mirror face.
Pedal adjusting sensor Detect the forward/backward position of pedal assembly.
Tilt sensor Detect the upward/downward position of the steering wheel.
Lifting sensor (front) Detect the up/down position of seat lifting (front).
Lifting sensor (rear) Detect the up/down position of seat lifting (rear).
Reclining sensor Detect the tilt of seatback.
Sliding sensor Detect the front/rear position of seat.
Item Function
Door mirror motor (LH/RH) Move the outside mirror face upward/downward and left/right.
Pedal adjusting motor Move the pedal assembly forward/backward.
Tilt motor Move the steering wheel upward/downward.
Lifting motor (front) Move the seat lifting (front) upward/downward.
Lifting motor (rear) Move the seat lifting (rear) upward/downward.
Reclining motor Tilt and raise up the seatback.
Sliding motor Slide the seat forward/backward.
Seat memory indicator Illuminates or flashes according to the registration/operation status.
Revision: December 20092009 QX56