remote control INFINITI QX56 2011 Factory Service Manual

ADP-2
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Description ................................
51
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Special Repair Requirement .....
52
SYSTEM INITIALIZATION . .......................................52
SYSTEM INITIALIZATION : Description .................52
SYSTEM INITIALIZATION : Special Repair Re-
quirement ............................................................. ...
52
MEMORY STORING .............................................. ...53
MEMORY STORING : Description .........................53
MEMORY STORING : Special Repair Require-
ment ........................................................................
53
INTELLIGENT KEY INTERLOCK STORING ........ ...53
INTELLIGENT KEY INTERLOCK STORING : De-
scription ..................................................................
54
INTELLIGENT KEY INTERLOCK STORING :
Special Repair Requirement ...................................
54
SYSTEM SETTING ...................................................54
SYSTEM SETTING : Descrip tion ...........................54
SYSTEM SETTING : Specia l Repair Requirement
...
55
DTC/CIRCUIT DIAGNOSIS ...................... ...56
U1000 CAN COMM CIRCUIT ......................... ...56
Description ........................................................... ...56
DTC Logic ...............................................................56
Diagnosis Procedure .............................................56
Special Repair Requirement ...................................56
U1010 CONTROL UNIT (CAN) .........................57
DTC Logic ............................................................ ...57
Diagnosis Procedure ..............................................57
B2112 SLIDING MOTOR ...................................58
DTC Logic ............................................................ ...58
Diagnosis Procedure .............................................58
B2113 RECLINING MOTOR ..............................60
DTC Logic ............................................................ ...60
Diagnosis Procedure .............................................60
B2116 TILT MOTOR ..........................................62
DTC Logic ............................................................ ...62
Diagnosis Procedure .............................................62
B2128 UART COMMUNICATION LINE ............64
Description ........................................................... ...64
DTC Logic ...............................................................64
Diagnosis Procedure .............................................64
B2130 EEPROM ................................................66
DTC Logic ............................................................ ...66
Diagnosis Procedure .............................................66
POWER SUPPLY AND GROUND CIRCUIT .....67
DRIVER SEAT CONTROL UNIT ........................... ...67
DRIVER SEAT CONTROL UNIT :
Diagnosis Procedure ..............................................
67
DRIVER SEAT CONTROL UNIT : Special Repair
Requirement ...........................................................
67
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT ........................................................................ ...
67
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Diagnosis Procedure ..................................
67
AUTOMATIC DRIVE POSITIONER CONTROL
UNIT : Special Repair Requirement ........................
68
SLIDING SWITCH .............................................69
Component Function Check ............................... ...69
Diagnosis Procedure ..............................................69
Component Inspection ............................................70
RECLINING SWITCH ........................................71
Component Function Check ............................... ...71
Diagnosis Procedure ..............................................71
Component Inspection ............................................72
LIFTING SWITCH (FRONT) ..............................73
Component Function Check ............................... ...73
Diagnosis Procedure ..............................................73
Component Inspection ............................................74
LIFTING SWITCH (REAR) ................................75
Component Function Check ............................... ...75
Diagnosis Procedure ..............................................75
Component Inspection ............................................76
TILT SWITCH ....................................................77
Component Function Check ............................... ...77
Diagnosis Procedure ..............................................77
Component Inspection ............................................78
TELESCOPIC SWITCH .....................................79
Component Function Check ............................... ...79
Diagnosis Procedure ..............................................79
Component Inspection ............................................80
SEAT MEMORY SWITCH .................................81
Component Function Check ............................... ...81
Diagnosis Procedure ..............................................81
Component Inspection ............................................82
DOOR MIRROR REMOTE CONTROL
SWITCH .............................................................
83
CHANGEOVER SWITCH ....................................... ...83
CHANGEOVER SWITCH : Component Function
Check ......................................................................
83
CHANGEOVER SWITCH : Diagnosis Procedure ...83
CHANGEOVER SWITCH : Component Inspec-
tion ..........................................................................
84
MIRROR SWITCH .................................................. ...84
MIRROR SWITCH : Component Function Check ...84
MIRROR SWITCH : Diagnosis Procedure ..............85
MIRROR SWITCH : Component Inspection ...........86
Revision: 2010 May2011 QX56

COMPONENT PARTSADP-7
< SYSTEM DESCRIPTION >
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Component DescriptionINFOID:0000000006248302
7. ABS actuator and electric unit (con- trol unit)
Refer to BRC-10, "
Component Parts
Location" (With VDC) or BRC-142,
"Component Parts Location" (With
BRAKE ASSIST) or BRC-149,
"Component Parts Location" (With
INTELLIGENT BRAKE ASSIST) 8. Door mirror remote
control switch 9. Seat memory switch
10. Sliding, lifting switch 11. Reclining switch 12. Driver side door switch
13. Door mirror (driver side) 14. T ilt motor 15. Telescopic motor
16. Automatic drive positioner control unit 17. Lifting motor (rear) 18.
Diver seat control unit
19. Lifting motor (front) 20. Sliding motor 21. Reclining motor
A. View with steering column cover low- er removed B. View with instrument lower panel LH
removed C. View with seat cushion pad and seat
back pad removed
D. Backside of seat cushion E. View with seat cushion pad and seat back pad removed
Component parts Description
Driver seat control unit  Main units of automatic drive positioner system.
 It is connected to the CAN.
 It communicates with automatic drive positioner control unit via
UART communication.
 It perform memory function after receiving the door unlock signal
from BCM.
 The address of each part is recorded.
 Operates each motor of seat to the registered position.
 Requests the operation of steering column and door mirror to automatic drive positioner control unit
 Operates the specific seat motor with the signal from power seat
switch.
 Transmits the ignition switch signal (ACC/ON) via UART com- munication to automatic driver positioner control unit.
Automatic drive positioner control unit  It communicates with driver seat control unit via UART commu-
nication.
 Perform various controls with the instructions of driver seat con- trol unit.
 Perform the controls of tilt & telescopic, door mirror and seat memory switch.
 Operates steering column and door mirror with the signal from the driver seat control
BCM Recognizes the following status and transmits it to driver seat con-
trol unit via CAN communication.
 Handle position: LHD
 Driver door: OPEN/CLOSE
 Ignition switch position: ACC/ON
 Steering lock unit status: LOCK/UNLOCK
 Door lock: UNLOCK (with Intelligent key or driver side door re-
quest switch operation)
Key ID
 Starter: CRANKING/OTHER
IPDM E/R ON/OFF signal of A/T shift selector (detention switch) is transmit-
ted to driver seat control unit via CAN communication.
TCM The following signals are transmitted to driver seat control unit via
CAN communication.
 Shift position signal (P range)
 Identification of transmission: A/T
Unified meter and A/C amp. Transmit the vehicle speed signal to driver seat control unit via
CAN communication.
Revision: 2010 May2011 QX56

ADP-8
< SYSTEM DESCRIPTION >
COMPONENT PARTS
ABS actuator and electric unit (control unit)Transmit the vehicle speed signal to driver seat control unit via
CAN communication.
A/T sift selector (Detention switch)  Detention switch is installed on A/T shift selector. It is turned
OFF when A/T shift selector is in P position.
 Driver seat control unit judges that A/T shift selector is in P posi- tion if continuity does not exist in this circuit.
Door mirror remote con-
trol switch Mirror switch
 Mirror switch is integrated in
door mirror remote control switch.
 It operates angle of door mirror face.
 It transmits mirror face adjust operation to automatic drive posi- tioner control unit.
Changeover switch  Changeover switch is integrated
in door mirror remote control
switch.
 Changeover switch has three positions (L, N and R).
 It changes operating door mirror motor by transmitting control signal to automatic drive positioner control unit.
Open/close switch  Open/close switch is integrated in door mirror remote control
switch.
 Power is supplied to folding mi rror from door mirror remote con-
trol switch when operating switch.
Tilt & telescopic switch Tilt switch
 Tilt switch is equipped to steering column.
 The operation signal is input to automatic drive positioner control
unit when tilt switch is operated.
Telescopic switch  Telescopic switch is equipped to steering column.
 The operation signal is input to automatic drive positioner control
unit when telescopic switch is operated.
Seat memory switch Set switch
It is used for registration and setting change of driving position and
Intelligent Key interlock function.
Seat memory switch  The maximum 2 driving positions can be registered by memory
switch 1 to 2.
 Driving position is set to the registered driving position when memory switch is pressed while operation conditions are satis-
fied.
Seat memory indicator Memory indicator indicates the status of auto driving position sys-
tem by turning ON or blinking.
Power seat switch Sliding switch
 Sliding switch is equipped to power seat switch on seat cushion
side surface.
 The operation signal is input to driver seat control unit when slid- ing switch is operated.
Reclining switch  The operation signal is input to driver seat control unit when re-
clining switch is operated.
 The operation signal is input to driver seat control unit when re-
clining switch is operated.
Lifting switch (front)  Lifting switch (front) is equipped to power seat switch on seat
cushion side surface.
 The operation signal is input to driver seat control unit when lift-
ing switch (front) is operated.
Lifting switch (rear)  Lifting switch (rear) is equipped to power seat switch on seat
cushion side surface.
 The operation signal is input to driver seat control unit when lift-
ing switch (rear) is operated.
Component parts Description
Revision: 2010 May2011 QX56

ADP-12
< SYSTEM DESCRIPTION >
SYSTEM
NOTE:
The lumbar support system are controlled independently with no link to the automatic drive positioner system.
Refer to SE-16, "
LUMBAR SUPPORT SYSTEM : System Description".
Sleep control
Driver seat control unit equips sleep control for reducing power consumption.
The system switches to sleep control when al l of the following conditions are satisfied.
 Ignition switch is OFF (steering lock status).
 All devices of auto driving pos ition system are not operating.
 45 seconds timer of driver s eat control unit is not operating.
 Set switch and memory switch (1 and 2) are OFF.
Wake-up control
Sleep control releases when detecting status change in either of the following item.
 CAN communication
 Power seat switch
 Set switch and seat memory switch (1 and 2)
 Tilt & telescopic switch
MANUAL FUNCTION
Function Description
Manual function The driving position (seat, steering column and door mirror position) can be adjusted
by using the power seat switch, tilt & telescopic switch or door mirror remote control
switch.
Memory function The seat, steering column and door mirror move to the stored driving position by
pressing seat memory switch (1 or 2).
Entry/Exit assist function Exit On exit, the seat moves backward and the steering column moves upward.
Entry
On entry, the seat and steering column returns from exiting position to the previous
driving position.
Intelligent Key interlock function Perform memory operation, exiting operation and entry operation by Intelligent Key
unlock operation or driver side door request switch unlock operation.
Revision: 2010 May2011 QX56

SYSTEMADP-13
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MANUAL FUNCTION : System DiagramINFOID:0000000006248305
MANUAL FUNCTION : System DescriptionINFOID:0000000006248306
The driving position (seat, steering column and door mi rror position) can be adjusted manually with power seat
switch, tilt & telescopic switch and door mirror remote control switch.
OPERATION PROCEDURE
1. Turn ignition switch ON.
2. Operate power seat switch, tilt & telescopic switch or door mirror remote control switch.
3. The driver seat, steering column or door mirror operates according to the operation of each switch.
NOTE:
Seat operates only up to two places at the same time.
JMJIA3774GB
Revision: 2010 May2011 QX56

ADP-14
< SYSTEM DESCRIPTION >
SYSTEM
DETAIL FLOW
Seat
NOTE:
The power seat can be operated manually regardless of the ignition switch position.
Tilt & Telescopic
Door Mirror
NOTE:
The door mirrors can be operated manually when ignition switch is in either ACC or ON position.
MEMORY FUNCTION
Order Input Output Control unit condition
1 Power seat switch
(sliding, lifting, reclin-
ing)
—The power seat switch signal is inputted to the driver seat control
unit when the power seat switch is operated.
2— Motors
(sliding, lifting, reclin-
ing)The driver seat control unit outputs signals to each motor accord-
ing to the power seat switch input signal.
Order Input Output Control unit condition
1 Tilt & telescopic switch — The tilt & telescopic switch signal is inputted to the automatic
drive positioner control unit when the tilt & telescopic switch is op-
erated.
2— Motors
(Tilt, telescopic)The automatic drive positioner control unit actuates each motor
according to the operation of the tilt & telescopic switch.
Order Input Output Control unit condition
1 Door mirror remote
control switch — The door mirror remote control switch signal is inputted to the au-
tomatic drive positioner control unit when the door mirror remote
control switch is operated.
2— Motors
(Door mirror motor)The automatic drive positioner control unit actuates each motor
according to the operation of the door mirror remote control switch.
Revision: 2010 May2011 QX56

SYSTEMADP-17
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EXIT ASSIST FUNCTION
EXIT ASSIST FUNCTION : System DiagramINFOID:0000000006248309
EXIT ASSIST FUNCTION : System DescriptionINFOID:0000000006248310
 When exiting, the condition is satisfied, the seat is moved backward 40 mm (1.57 in) from normal sitting
position and the steering is moved to the most upper position.
 The seat slide amount and the steering oper ation at entry/exit operation can be changed.
NOTE:
 This function is set to ON before delivery (initial setting).
 Further information for the system setting procedure. Refer to ADP-54, "
SYSTEM SETTING : Description".
OPERATION PROCEDURE
1. Shift position P position.
2. Open the driver door with ignition switch in OFF position.
3. Driver seat and steering column will move to the exiting position.
OPERATION CONDITION
Satisfy all of the following items. The exit assist function is not performed if these items are not satisfied.
JMJIA3776GB
Item Request status
Ignition position OFF
System setting [Entry/exit assist function (seat/steering)] ON
Initialization Done
Switch inputs
 Power seat switch
 Tilt & telescopic switch
 Door mirror remote control switch
 Set switch
 Memory switch OFF
(Not operated)
A/T shift selector P position
Handle position LHD
Revision: 2010 May2011 QX56

DIAGNOSIS SYSTEM (DRIVER SEAT CONTROL UNIT)
ADP-23
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TELESCO SW-FR “ON/OFF” ××ON/OFF status judged from the telescoping switch (for-
ward) signal.
TELESCO SW-RR “ON/OFF” ××ON/OFF status judged from the telescoping switch (back-
ward) signal.
MIR CON SW–UP “ON/OFF” ××ON/OFF status judged from the mirror switch (up) signal.
MIR CON SW–DN “ON/OFF” ××ON/OFF status judged from the mirror switch (down) signal.
MIR CON SW–RH “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (passenger side) signal.
MIR CON SW–LH “ON/OFF” ××ON/OFF status judged from the door mirror remote control
switch (driver side) signal.
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.
VEHICLE SPEED — ××Display the vehicle speed signal received from combination
meter by numerical value [km/h].
P RANG SW CAN “ON/OFF” ××ON/OFF status judged from the P range switch signal.
R RANGE (CAN) “ON/OFF” ××ON/OFF status judged from the R range switch signal.
DOOR SW–FL “ON/OFF” ××ON/OFF status judged from the door switch (front driver
side) signal.
DOOR SW–FR “ON/OFF” ××ON/OFF status judged from the door switch (front passen-
ger side) signal.
IGN ON SW “ON/OFF” ××ON/OFF status judged from the ignition switch signal.
ACC ON SW “ON/OFF” ××ON/OFF status judged from the ACC switch signal.
KEY ON SW “ON/OFF” ××ON/OFF status judged from the key on switch signal.
KEYLESS ID — ××Key ID status judged from the key ID signal.
KYLS DR UNLK “ON/OFF” ××ON/OFF status judged from the driver side door unlock ac-
tuator output switch signal.
VHCL SPEED (ABS) “ON/OFF” ××ON/OFF status judged from vehicle speed signal.
HANDLE “RHD/LHD” ××RHD/LHD status judged from handle position signal.
TRANSMISSION “AT or CVT/
MT” ××
AT or CVT/MT status judged from transmission.
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.
Monitor Item Unit
Main
Signals Selection
From
Menu Contents
Revision: 2010 May2011 QX56

ADP-64
< DTC/CIRCUIT DIAGNOSIS >
B2128 UART COMMUNICATION LINE
B2128 UART COMMUNICATION LINE
DescriptionINFOID:0000000006248348
Driver seat control unit performs UART communication with the automatic drive positioner control unit using 1
communication lines. Driver seat control unit receives t he operation signals of tilt & telescopic switch, door mir-
ror remote control switch, and the position signals of door mirror sensor from the automatic drive positioner
control unit and transmits the operation request signal.
DTC LogicINFOID:0000000006248349
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.STEP 1
Turn ignition switch ON.
>> GO TO 2.
2.PROCEDURE
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-64, "DiagnosisProcedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006248350
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check “Self diagnostic result” with CONSULT-III.
3. Erase the DTC.
4. Perform DTC confirmation procedure. Refer to ADP-62, "
DTC Logic".
Is the DTC displayed again?
YES >> GO TO 2.
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
2.CHECK UART COMMUNICATION LINE CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit and autom atic drive positioner control unit connector.
3. Check continuity between driver seat control uni t harness connector and automatic drive positioner con-
trol unit harness connector.
4. Check continuity between driver seat control unit harness connector and ground.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause B2128 UART COMM The communication between driver seat control unit
and auto drive positioner control unit is interrupted for
a period of time.  UART communication line
(UART communication line is
open or shorted)
 Driver seat control unit
 Automatic drive positioner
control unit
Driver seat control unit Automatic drive positioner control unit Continuity
Connector Terminal Connector Terminal
B452 2 M75 8 Existed
Revision: 2010 May2011 QX56

DOOR MIRROR REMOTE CONTROL SWITCHADP-83
< DTC/CIRCUIT DIAGNOSIS >
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DOOR MIRROR REMOTE CONTROL SWITCH
CHANGEOVER SWITCH
CHANGEOVER SWITCH : Comp onent Function CheckINFOID:0000000006248378
1.CHECK CHANGEOVER SWITCH FUNCTION
Check the operation on “MIR CHNG SW-R” or “MIR CHNG SW-L” in “DATA MONITOR” mode with CON-
SULT-III.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Refer to ADP-83, "
CHANGEOVER SWITCH : Diagnosis Procedure".
CHANGEOVER SWITCH : Diagnosis ProcedureINFOID:0000000006248379
1.CHECK CHANGEOVER SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect door mirror remote control switch connector.
3. Turn ignition switch ON.
4. Check voltage between door mirror remote control switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK CHANGEOVER SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit connector.
3. Check continuity between automatic drive posit ioner control unit harness connector and door mirror
remote control switch harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> Replace automatic drive positioner control unit.
NO >> Repair or replace harness.
Monitor item Condition
MIR CHNG SW-R/L When operating the changeover toward the right or left side. : ON
Other than the above. : OFF
(+)
(-)Voltage (V)
(Approx.)
Door mirror remote
control switch
Connector Terminal
M8 2
Ground 5
3
Automatic drive positioner control unit Door mirror remote control switch Continuity
Connector Terminal Connector Terminal
M75 2
M8 3
Existed
14 2
Automatic drive positioner control unit GroundContinuity
Connector Terminal
M75 2
Not existed
14
Revision: 2010 May2011 QX56