INFINITI QX56 2008 Factory Service Manual

PEDAL ADJUSTING MOTORADP-97
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PEDAL ADJUSTING MOTOR
DescriptionINFOID:0000000001735540
• 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 adjusting
motor.
Component Function CheckINFOID:0000000001735541
1. CHECK FUNCTION
1. Select “ADJ PEDAL MOTOR” in “Active test” mode with CONSULT-III.
2. Check the pedal adjusting motor operation.
Is the operation of relevant parts normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-97, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735542
1. CHECK PEDAL ADJUSTING MOTOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“ADJ PEDAL MOTOR”) with CONSULT-lll.
3. Check voltage between automatic drive positioner control unit
harness connector and ground.
Is the inspection result normal?
YES >> Replace pedal adjusting motor.
NO >> GO TO 2
2. CHECK PEDAL ADJUSTING MOTOR CIRCUIT
Test item Description
ADJ PEDAL MOTOR OFF
Pedal adjusting motor St op
FR Forward
RR Backward
Te r m i n a l
Te s t I t e mVoltage
(V)
(Approx.)
(+)
(-)
Automatic
drive posi-
tioner con- trol unit
connector Te r m i n a l
M34 37
Ground ADJ PED-
AL MOTOR OFF 0
RR (backward) 0
FR (forward)
Battery
voltage
45 OFF
0
RR (backward) Battery
voltage
FR (forward) 0
PIIA4806E
Revision: March 2010 2008 QX56

ADP-98
< COMPONENT DIAGNOSIS >
PEDAL ADJUSTING MOTOR
1. Disconnect automatic drive positioner control unit and pedaladjusting motor.
2. Check continuity between automatic drive positioner control unit
harness connector and pedal adjusting motor harness connec-
tor.
3. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic drive positioner control unit.
NO >> Repair or replace the malfunctioning part.
Automatic drive
positioner control unit connector Te r m i n a l
Pedal adjusting
motor connector Terminal Continuity
M34 (A) 37
E109 (B) 1
Ye s
45 2
Automatic drive positioner control unit connector Terminal
GroundContinuity
M34 (A) 37
No
45
ALJIA0195ZZ
Revision: March 2010 2008 QX56

DOOR MIRROR MOTORADP-99
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DOOR MIRROR MOTOR
DescriptionINFOID:0000000001735543
It makes mirror face operate from side to side and up and down with the electric power that automatic drive
positioner control unit supplies.
Component Function CheckINFOID:0000000001735544
1. CHECK DOOR MIRROR MOTOR FUNCTION
Check the operation with “MIRROR MOTOR RH” and “MIRROR MOTOR LH” in “ACTIVE TEST” mode with
CONSULT-III
Refer to ADP-26, "
CONSULT-III Function".
Is the inspection result normal?
YES >> Door mirror motor function is OK.
NO >> Refer to ADP-99, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001735545
1. CHECK DOOR MIRROR MOTOR INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between door mirror connector and ground.
Is the inspection result normal?
YES >> Refer to ADP-101, "Component Inspection".
NO >> GO TO 2
2. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit connector and door mirror.
3. Check continuity between automat ic drive positioner control unit
connector and door mirror connector.
Door mirror LH
Te r m i n a l s
Door mirror re-
mote control
switch condition Voltage (V)
(Approx.)
(+)
(–)
Door mirror
connector Te r m i n a l
D4 (LH)
D107 (RH) 1
Ground UP
Battery voltage
Other than above 0
2 LEFT
Battery voltage
Other than above 0
3 DOWN / RIGHT Battery voltage
Other than above 0
ALJIA0196ZZ
Automatic drive
positioner control unit connector Te r m i n a l
Door mirror LH
connector Terminal Continuity
M33 16
D4 3
Ye s
31 1
32 2
LIIA1880E
Revision: March 2010 2008 QX56

ADP-100
< COMPONENT DIAGNOSIS >
DOOR MIRROR MOTOR
Door mirror RH
4. Check continuity between automatic drive positioner control unitconnector and ground.
Door mirror LH
Door mirror RH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect automatic drive positioner control unit.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit connector and ground.
Door mirror LH
Automatic drive posi-
tioner control unit con- nector Te r m i n a l
Door mirror
RH connector Terminal Continuity
M33 14
D107 1
Ye s
15 2
30 3
Automatic drive position- er control unit connector Te r m i n a l
GroundContinuity
M33 16
No
31
32
Automatic drive position- er control unit connector Te r m i n a l
GroundContinuity
M33 14
No
15
30
LIIA1888E
Te r m i n a l s
Mirror switch condition Voltage (V)
(Approx.)
(+)
(-)
Automatic drive
positioner control unit connector Te r m i n a l
M33 16
Ground DOWN / RIGHT Battery voltage
Other than above 0
31 UP
Battery voltage
Other than above 0
32 LEFT
Battery voltage
Other than above 0
ALJIA0197ZZ
Revision: March 2010 2008 QX56

DOOR MIRROR MOTORADP-101
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Door mirror RH
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace automatic drive positioner control unit.
4. CHECK DOOR MIRROR MOTOR
Check door mirror motor.
Refer to ADP-101, "
Component Inspection".
Is the inspection result normal?
YES >> Refer to GI-38, "Intermittent Incident".
NO >> Replace door mirror actuator. Refer to MIR-11, "
Door Mirror Assembly".
Component InspectionINFOID:0000000001735546
1. CHECK DOOR MIRROR MOTOR-I
Check that door mirror motor does not trap foreign objects and does not have any damage.
Refer to MIR-11, "
Door Mirror Assembly".
Is the inspection result normal?
YES >> GO TO 2
NO >> Replace door mirror actuator. Refer to MIR-11, "
Door Mirror Assembly".
2. CHECK DOOR MIRROR MOTOR-II
1. Turn ignition switch OFF.
2. Disconnect door mirror.
3. Apply 12V to each power supply terminal of door mirror motor.
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace door mirror actuator. Refer to MIR-11, "
Door Mirror Assembly".
Te r m i n a l s
Mirror switch con-dition Voltage (V)
(Approx.)
(+)
(-)
Automatic drive
positioner con-
trol unit connec-
tor Te r m i n a l
M33 14
GroundUP
Battery voltage
Other than above 0
15 LEFT
Battery voltage
Other than above 0
30 DOWN / RIGHT Battery voltage
Other than above 0
ALJIA0198ZZ
Door mirror connector Terminal
Operational direction
(+) (–)
D4 (LH)
D107 (RH) 32 R
IG HT
23 L EFT
13 U P
31 D OW N
ALJIA0199ZZ
Revision: March 2010 2008 QX56

ADP-102
< COMPONENT DIAGNOSIS >
SEAT MEMORY INDICATOR LAMP
SEAT MEMORY INDICATOR LAMP
DescriptionINFOID:0000000001735547
• Memory switch is equipped on the seat memory switch installed to the driver side door trim. The operation
signal is inputted to the automatic drive positioner control unit when the memory switch is operated.
• The status of automatic drive positioner system can be checked according to the illuminating/flashing status.
Component Function CheckINFOID:0000000001735548
1. CHECK FUNCTION
1. Select “MEMORY SW INDCTR” in “A ctive test” mode with CONSULT-III.
2. Check the memory indicator operation.
Is the operation of relevant parts normal?
YES >> INSPECTION END
NO >> Perform diagnosis procedure. Refer to ADP-102, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000001735549
1. CHECK SEAT MEMORY INDICATOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and seat memory switch.
3. Check continuity between automatic drive positioner control unit harness connector and seat memory switch harness connector.
4. Check continuity between automatic drive positioner control unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK MEMORY INDICATOR POWER SUPPLY
Test item Description
MEMORY SW INDCTR OFF
Memory switch indicator OFF
ON-1 Indicator 1: ON
ON-2 Indicator 2: ON
Automatic drive
positioner control
unit connector Te r m i n a l
Seat memory switch
connector Terminal Continuity
M33 12
D5 6
Ye s
13 7
Automatic drive position- er connector Te r m i n a l
GroundContinuity
M33 12
No
13
LIIA1022E
Revision: March 2010 2008 QX56

SEAT MEMORY INDICATOR LAMPADP-103
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Check voltage between seat memory switch harness connector and
ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Check the following. •Fuse
• Harness for open or short between memory indicator and fuse.
3. CHECK MEMORY INDICATOR
Refer to ADP-103, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4
NO >> Replace seat memory switch.
4. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic driv e positioner control unit.
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000001735550
1. CHECK SEAT MEMORY INDICATOR
1. Disconnect seat memory switch.
2. Check continuity between seat memory switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace seat memory switch.
Seat memory switch connector Te r m i n a l s
Voltage (V)
(Approx.)
(+) (–)
D5 5Ground Battery voltage
PIIA4595E
Te r m i n a l
Continuity
Seat memory switch
(+) (-)
6 5Y es
7
ALJIA0200ZZ
Revision: March 2010 2008 QX56

ADP-104
< ECU DIAGNOSIS >
DRIVER SEAT CONTROL UNIT
ECU DIAGNOSIS
DRIVER SEAT CONTROL UNIT
Reference ValueINFOID:0000000001735551
VALUES ON THE DIAGNOSIS TOOL
CONSULT-III MONITOR ITEM
Monitor ItemCondition Value/Status
SET SW Set switch Push
ON
Release OFF
MEMORY SW1 Memory switch 1 Push
ON
Release OFF
MEMORY SW2 Memory switch 2 Push
ON
Release OFF
SLIDE SW–FR Sliding switch (front) Operate
ON
Release OFF
SLIDE SW–RR Sliding switch (rear) Operate
ON
Release OFF
RECLN SW–FR Reclining switch (front) Operate
ON
Release OFF
RECLN SW–RR Reclining switch (rear) Operate
ON
Release OFF
LIFT FR SW–UP Lifting switch front (up) Operate
ON
Release OFF
LIFT FR SW–DN Lifting switch front (down) Operate
ON
Release OFF
LIFT RR SW–UP Lifting switch rear (up) Operate
ON
Release OFF
LIFT RR SW–DN Lifting switch rear (down) Operate
ON
Release OFF
MIR CON SW–UP Mirror switch Up
ON
Other than above OFF
MIR CON SW–DN Mirror switch Down
ON
Other than above OFF
MIR CON SW–RH Mirror switch Right
ON
Other than above OFF
MIR CON SW–LH Mirror switch Left
ON
Other than above OFF
MIR CHNG SW–R Chan geover switchRight
ON
Other than above OFF
MIR CHNG SW–L Chan geover switchLeft
ON
Other than above OFF
PEDAL SW-FR Pedal adjusting switch Forward
ON
Other than above OFF
PEDAL SW-RR Pedal adjusting switch Backward
ON
Other than above OFF
Revision: March 2010 2008 QX56

DRIVER SEAT CONTROL UNITADP-105
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TERMINAL LAYOUT
PHYSICAL VALUES
DETENT SW AT selector lever P position
OFF
Other than above ON
STARTER SW Ignition position Cranking
ON
Other than above OFF
SLIDE PULSE Seat sliding Forward
The numeral value decreases
Backward The numeral value increases
Other than above No change to numeral value
RECLN PULSE Seat reclining Forward
The numeral value decreases
Backward The numeral value increases
Other than above No change to numeral value
LIFT FR PULSE Seat lifter (front) Up
The numeral value decreases
Down The numeral value increases
Other than above No change to numeral value
LIFT RR PULSE Seat lifter (rear) Up
The numeral value decreases
Down The numeral value increases
Other than above No change to numeral value
MIR/SEN RH U–D Door mirror (passenger side) Close to peak
3.4
Close to valley 0.6
MIR/SEN RH R–L Door mirror (passenger side) Close to left edge
3.4
Close to right edge 0.6
MIR/SEN LH U–D Door mirror (driver side) Close to peak
3.4
Close to valley 0.6
MIR/SEN LH R–L Door mirror (driver side) Close to left edge
0.6
Close to right edge 3.4
PEDAL SEN Pedal position Forward
0.5
Backward 4.5
Monitor Item
Condition Value/Status
LIIA2449E
Revision: March 2010 2008 QX56

ADP-106
< ECU DIAGNOSIS >
DRIVER SEAT CONTROL UNIT
Te r m i n a lWire
Color Item
Condition Voltage (V)
(Approx.)
1 L UART LINE (RX) Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation)
3 L CAN-H ——
6 O Ignition switch (START) Ignition switch (START position) Battery voltage
9 L/R Reclining motor sensor signal ON (seat reclining motor opera-
tion)
Other than above
0 or 5
10 W Rear lifting motor sensor signal ON (rear lifting motor operation)
Other than above
0 or 5
11 R / B Sliding switch BACKWARD sig-
nal ON (seat sliding switch BACK-
WARD operation)
0
Other than above Battery voltage
12 O/B Reclining switch BACKWARD
signal ON (seat reclining switch BACK-
WARD operation)
0
Other than above Battery voltage
13 L/B Front lifting switch DOWN signal ON (front lifting switch DOWN op-
eration)
0
Other than above Battery voltage
14 G/W Rear lifting switch DOWN signal ON (rear lifting switch DOWN op-
eration)
0
Other than above Battery voltage
15 L/Y Pedal adjustin
g switch BACK-
WARD signal ON (pedal adjusting switch BACK-
WARD operation)
0
Other than above Battery voltage
16 W Seat sensor power Ignition switch ON 5
17 W UART LINE (TX) Pedal adjusting switch ON (FOR-
WARD or BACKWARD operation)
PIIA4813E
SIIA0692J
SIIA0693J
PIIA4814E
Revision: March 2010
2008 QX56