ignition INFINITI QX56 2009 Factory User Guide

AUTOMATIC DRIVE POSITIONER SYSTEMADP-21
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MEMORY FUNCTION : Component DescriptionINFOID:0000000003775505
CONTROL UNITS
INPUT PARTS
Switches
Sensors
OUTPUT PARTS
1. A. Automatic drive positioner control unit M33, M34
B. Pedal adjusting 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
Item Function
Driver seat control unit  The address of each part is recorded.
 Operates each motor of seat to the registered position.
 Requests the operations of pedal assembly and door mirror to automatic drive po-
sitioner control unit.
Automatic drive positioner control unit Operates the pedal adjusting motor, tilt motor and door mirror with the instructions
from the driver seat control.
Item Function
Memory switch 1/2 The registration and memory function can be performed with its operation.
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 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 lifter (front) upward/downward.
Lifting motor (rear) Move the seat lifter (rear) upward/downward.
Reclining motor Tilt and raise up the seatback.
Revision: December 20092009 QX56

ADP-22
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM
EXIT ASSIST FUNCTION
EXIT ASSIST FUNCTION : System DiagramINFOID:0000000003775506
EXIT ASSIST FUNCTION : System DescriptionINFOID:0000000003775507
OUTLINE
When exiting, if the conditions are satisfied, the seat is moved backward and steering wheel is moved upward-
from normal sitting position.
The seat slide amount at ent ry/exit operation can be changed.
NOTE:
 This function is set to OFF before delivery (initial setting).
 Further information for the system sett ing procedure. Refer to Owner’s Manual.
OPERATION PROCEDURE
1. Open the driver door with ignition switch in OFF position.
2. Front seat LH and steering wheel will move to the exiting position.
OPERATION CONDITION
Satisfy all of the following items. The exit assist f unction is not performed if these items are not satisfied.
Sliding motor Slide the seat forward/backward.
Memory indicator Illuminates or blinks according to the registration/operation status.Item Function
ALJIA0238GB
Item Request status
Ignition switch OFF
System setting [Entry/exit assist function] ON
Initialization Done
Revision: December 20092009 QX56

AUTOMATIC DRIVE POSITIONER SYSTEMADP-23
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DETAIL FLOW
EXIT ASSIST FUNCTION : Component Parts LocationINFOID:0000000004055687
Switch inputs
 Power seat switch
 Pedal adjusting switch
 ADP steering switch
 Door mirror remote control switch
 Set switch
 Seat memory switch OFF
(Not operated)
A/T selector lever P position
Item Request status
Order Input Output Control unit condition
1 Front door switch LH — Driver seat control unit receives front door switch LH signal (open)
from BCM via CAN communication.
2— Motors (seat sliding,
tilt)Driver seat control unit operates the seat sliding motor, which recog-
nizes that the front door LH is opened with ignition switch OFF. Driv-
er seat control unit then requests the operation of the tilt motor to the
automatic drive positioner control unit via UART communication.
The automatic drive positioner control unit operates the motor for a
constant amount.
ALJIA0347ZZ
Revision: December 20092009 QX56

ADP-24
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AUTOMATIC DRIVE POSITIONER SYSTEM
EXIT ASSIST FUNCTION : Component Description
INFOID:0000000003775509
CONTROL UNITS
INPUT PARTS
Switches
Sensors
OUTPUT PARTS
ENTRY ASSIST FUNCTION
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
Item Function
Driver seat control unit  Operates the seat sliding motor for a constant amount.
 Driver seat control unit requests the operation of the tilt motor to the automatic
drive positioner control unit via UART communication.
Automatic drive positioner control unit Operates the tilt motor for a constant amount.
BCM Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
 Front door LH: OPEN/CLOSE
Item Function
Front door switch LH Detect front door LH open/close status.
Item Function
Sliding sensor Detect the front/rear position of seat.
Tilt sensor Detect the up/down position of steering wheel.
Item Function
Sliding motor Slide the seat forward/backward.
Tilt motor Moves the steering wheel upward/downward.
Revision: December 20092009 QX56

AUTOMATIC DRIVE POSITIONER SYSTEMADP-25
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ENTRY ASSIST FUNCTION : System DiagramINFOID:0000000003775510
ENTRY ASSIST FUNCTION : System DescriptionINFOID:0000000003775511
OUTLINE
The seat and steering wheel are in the exiting position when either following condition (A or B) is satisfied, the
seat and steering wheel return from exiting position to the previous driving position.
NOTE:
 This function is set to OFF before delivery (initial setting).
 Further information for the system setting procedure. Refer to Owner’s Manual.
OPERATION PROCEDURE
1. A: Turn the ignition switch ON. B: Turn the ignition switch from OFF to ACC after closing the driver door.
2. Front seat LH and steering wheel will return from the exiting position to entry position.
OPERATION CONDITION
Satisfy all of the following items. The entry assist f unction is not performed if these items are not satisfied.
DETAIL FLOW
ALJIA0238GB
Item Request status
Seat, steering wheel The vehicle is not moved after performing the
exit assist function.
Switch inputs
 Power seat switch
 Pedal adjusting switch
 ADP steering switch
 Door mirror control switch
 Set switch
 Memory switch OFF
(Not operated)
A/T selector lever P position
Revision: December 20092009 QX56

ADP-26
< FUNCTION DIAGNOSIS >
AUTOMATIC DRIVE POSITIONER SYSTEM
ENTRY ASSIST FUNCTION : Component Parts Location
INFOID:0000000004055688
Order Input Output Control unit condition 1 Door switch/Ignition
switch —
Driver seat control unit receives the signals of ignition switch signal
and front door switch from BCM via CAN communication.
2 — Motors (sliding, tilt) Driver seat control unit operates the sliding motor when the operating
conditions are satisfied. Driver seat control unit then requests the op-
eration of the tilt motor to the automatic drive positioner control unit
via UART communication. The automatic drive positioner control unit
operates the motor for a constant amount.
Sensors (sliding, tilt) — Sensors monitor the operating positions of seat and steering wheel
and then stops the operation of each motor when each part reaches
the recorded address.
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
Revision: December 20092009 QX56

AUTOMATIC DRIVE POSITIONER SYSTEMADP-27
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ENTRY ASSIST FUNCTION : Component DescriptionINFOID:0000000003775513
CONTROL UNITS
INPUT PARTS
Switches
Sensors
OUTPUT PARTS
Item Function
Driver seat control unit According to the ignition signal and front door switch LH signal from BCM,
 Operates the seat sliding motor for a constant amount.
 Driver seat control unit then requests the operation of the tilt motor to the auto-
matic drive positioner control unit via UART communication.
Automatic drive positioner control unit Operates the tilt motor for a constant amount.
BCM Recognizes the following status and transmits it to the driver seat control unit via
CAN communication.
 Front door LH: OPEN/CLOSE
 Ignition switch position: ACC/ON
Item Function
Front door switch LH Detect front door LH open/close status.
Item Function
Sliding sensor Detect the front/rear position of seat.
Tilt sensor Detect the up/down position of steering wheel.
Item Function
Sliding motor Slide the seat forward/backward.
Tilt motor Moves the steering wheel upward/downward.
Revision: December 20092009 QX56

DIAGNOSIS SYSTEM (DRIVER SEAT C/U)ADP-29
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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 Unit
Main
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).
Revision: December 20092009 QX56

U1000 CAN COMM CIRCUITADP-31
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COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000003775516
Refer to LAN-4, "System Description".
DTC LogicINFOID:0000000003775517
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON and wait at least 3 seconds.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to LAN-14, "Trouble Diagnosis Procedure".
NO >> Inspection End.
Special Repair RequirementINFOID:0000000003775519
Refer to Owner’s Manual.
DTC Trouble diagnosis
name DTC detecting condition Possible cause
U1000 CAN COMM CIR-
CUIT  Driver seat control unit cannot communicate to other
control units.
 Driver seat control unit c annot communicate for more
than the specified time.  Harness or connectors
(CAN communication line is
open or shorted)
Revision: December 20092009 QX56

ADP-32
< COMPONENT DIAGNOSIS >
B2112 SLIDING MOTOR
B2112 SLIDING MOTOR
DescriptionINFOID:0000000003775520
 The seat sliding motor is installed to the power seat frame assembly.
 The seat sliding motor is installed with the driver seat control unit.
 Slides the seat frontward/rearward by changing the rotation direction of sliding motor.
DTC LogicINFOID:0000000003775521
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1. STEP 1
Turn ignition switch ON.
>> GO TO 2
2. STEP 2
Check “Self diagnostic result” with CONSULT-III.
Is the DTC detected?
YES >> Perform diagnosis procedure. Refer to ADP-32, "Diagnosis Procedure".
NO >> Inspection End.
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-42, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000003775522
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-32, "DTC Logic"
.
Is the DTC displayed again?
YES >> GO TO 2
NO >> Check intermittent incident. Refer to GI-38, "Intermittent Incident"
.
2. CHECK COMPONENTS
Refer to ADP-74, "Component Function Check"
and ADP-90, "Component Function Check".
>> Inspection End.
DTC No. Trouble diagnosis
name DTC detecting condition Possible cause
B2112 SEAT SLIDE The driver seat control unit detects the output of slid-
ing motor output terminal for 0.1 second or more
even if the sliding switch is not input.
 Driver seat control unit
Revision: December 20092009 QX56