2008 INFINITI QX56 ignition

AUTOMATIC DRIVE POSITIONER SYSTEMADP-25
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ENTRY ASSIST FUNCTION : Component DescriptionINFOID:0000000001735429
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: March 2010 2008 QX56

DIAGNOSIS SYSTEM (DRIVER SEAT C/U)ADP-27
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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).
Revision: March 2010 2008 QX56

U1000 CAN COMM CIRCUITADP-29
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COMPONENT DIAGNOSIS
U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000001735433
Refer to LAN-4, "System Description".
DTC LogicINFOID:0000000001735434
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 ADP-29, "DiagnosisProcedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735435
Refer to LAN-10, "Self-Diagnosis".
Special Repair RequirementINFOID:0000000001735436
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: March 2010 2008 QX56

ADP-30
< COMPONENT DIAGNOSIS >
B2112 SLIDING MOTOR
B2112 SLIDING MOTOR
DescriptionINFOID:0000000001735437
• The seat sliding motor is installed to the seat cushion frame.
• 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:0000000001735438
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-30, "DiagnosisProcedure".
NO >> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735439
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-30, "
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-71, "
ComponentFunctionCheck" and ADP-87, "ComponentFunctionCheck".
>> 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: March 2010
2008 QX56

B2113 RECLINING MOTORADP-31
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B2113 RECLINING MOTOR
DescriptionINFOID:0000000001735440
• The seat reclining motor is installed to the seatback frame.
• The seat reclining motor is activated with the driver seat control unit.
• Tilts the seatback frontward/rearward by changi ng the rotation direction of reclining motor.
DTC LogicINFOID:0000000001735441
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-31, "DiagnosisProcedure".
NO >> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735442
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-31, "
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-73, "
ComponentFunctionCheck" and ADP-89, "ComponentFunctionCheck".
>> INSPECTION END
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2113 SEAT RECLINING The driver seat control unit detects the output of re-
clining motor output terminal for 0.1 second or more
even if the reclining switch is not input. • Driver seat control unit
Revision: March 2010
2008 QX56

ADP-32
< COMPONENT DIAGNOSIS >
B2114 SEAT LIFTER FR
B2114 SEAT LIFTER FR
DescriptionINFOID:0000000001735443
• The lifting motor (front) is installed to the seat cushion frame.
• The lifting motor (front) is activated with the driver seat control unit.
• Tilts the seat front up/down by changing the rotation direction of lifting motor (front).
DTC LogicINFOID:0000000001735444
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, "DiagnosisProcedure".
NO >> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735445
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-75, "
ComponentFunctionCheck" and ADP-91, "ComponentFunctionCheck".
>> INSPECTION END
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2114 SEAT LIFTER FR The driver seat control unit detects the output of lift-
ing motor (front) output te
rminal for 0.1 second or
more even if the lifting switch is not input. • Driver seat control unit
Revision: March 2010
2008 QX56

B2115 SEAT LIFTER RRADP-33
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B2115 SEAT LIFTER RR
DescriptionINFOID:0000000001735446
• The lifting motor (rear) is installed to the seat cushion frame.
• The lifting motor (rear) is activated with the driver seat control unit.
• Tilts the seat rear up/down by changing the rotation direction of lifting motor (rear).
DTC LogicINFOID:0000000001735447
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-33, "DiagnosisProcedure".
NO >> INSPECTION END
NOTE:
First perform diagnosis for B2126 if B2126 is detected. Refer to ADP-40, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735448
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-33, "
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-77, "
ComponentFunctionCheck" and ADP-93, "ComponentFunctionCheck".
>> INSPECTION END
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2115 SEAT LIFTER RR The driver seat control unit detects the output of lift-
ing motor (rear) output terminal for 0.1 second or
more even if the lifting switch is not input. • Driver seat control unit
Revision: March 2010
2008 QX56

ADP-34
< COMPONENT DIAGNOSIS >
B2117 ADJ PEDAL MOTOR
B2117 ADJ PEDAL MOTOR
DescriptionINFOID:0000000001735449
• The pedal adjusting motor is installed to the pedal assembly.
• The pedal adjusting motor is activated with the automatic drive positioner control unit.
• The pedal assembly is adjusted forward/backward by changing the rotation direction of pedal adjustingmotor.
DTC LogicINFOID:0000000001735450
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-34, "DiagnosisProcedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001735451
1. CHECK PEDAL ADJUSTING MECHANISM
Check the following.
• Operation malfunction caused by pedal adjusting mechanism deformation or pinched harness or other for- eign materials
• Operation malfunction and interference wit h other parts by poor installation
Is the inspection result normal
YES >> GO TO 2
NO >> Repair or replace the malfunctioning part and check again.
2. CHECK FUNCTION
1. Turn ignition switch ON.
2. Check “ADJ PEDAL MOTOR” in "Active test" mode with CONSULT-III.
Is the inspection result normal?
YES >> Pedal adjusting motor circuit is OK.
NO >> GO TO 3
3. CHECK PEDAL ADJUSTING MOTOR CIRCUIT HARNESS CONTINUITY
DTC No. Trouble diagnosis
name DTC detecting condition
Possible cause
B2117 ADJ PEDAL MOTOR When any manual or automatic operations are not
performed, if motor operation is detected for 0.1
second or more, status is judged "Output error". • Harness and connectors
(pedal adjusting motor circuit is
opened/shorted, pedal adjusting
motor power supp ly circuit is
opened/shorted.)
• Pedal adjusting motor
Test item Description
ADJ PEDAL MOTOR The pedal adjusting motor is activated by receiving the drive signal.
Revision: March 2010 2008 QX56