INFINITI QX56 2010 Factory Service Manual

SLIDING MOTORADP-97
< COMPONENT DIAGNOSIS >
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SLIDING MOTOR
DescriptionINFOID:0000000005147550
• The sliding motor LH is installed to the power seat frame assembly.
• The sliding motor LH is activated by the driver seat control unit.
• The seat is slid forward/backward by changing the rotation direction of sliding motor LH.
Component Function CheckINFOID:0000000005147551
1. CHECK FUNCTION
1. Select “SEAT SLIDE” in “Active test” mode with CONSULT-III.
2. Check the sliding motor LH operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-97, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147552
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK SLIDING MOTOR LH POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“SEA T SLIDE”) with CONSULT-lll
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> Replace sliding motor LH. (Built in power seat frame assembly). Refer to SE-69, "Disassembly
and Assembly".
NO >> GO TO 2
2. CHECK SLIDING MOTOR LH CIRCUIT
Test Item Description
SEAT SLIDE OFF
Seat sliding Stop
FR Forward
RR Backward
Te r m i n a l
Test ItemVoltage (V)
(Approx.)
(+)
(-)
Driver seat
control unit connector Te r m i n a l
B203 35
Ground SEAT
SLIDE OFF
0
FR (forward) Battery voltage
RR (backward) 0
42 OFF
0
FR (forward) 0
RR (backward) Battery voltage
PIIA4801E
Revision: April 20092010 QX56

ADP-98
< COMPONENT DIAGNOSIS >
SLIDING MOTOR
1. Disconnect driver seat control unit and sliding motor LH.
2. Check continuity between driver seat control unit harness con-nector and sliding motor LH harness connector.
3. Check continuity between driver seat control unit harness con- nector 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 driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Sliding motor LH
connector Terminal Continuity
B203 (A) 35
B204 (B) 5
Ye s
42 1
Driver seat control unit connector Te r m i n a l
GroundContinuity
B203 (A) 35
No
42
ALJIA0321ZZ
Revision: April 20092010 QX56

RECLINING MOTORADP-99
< COMPONENT DIAGNOSIS >
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RECLINING MOTOR
DescriptionINFOID:0000000005147553
• The reclining motor LH is installed to the seatback assembly.
• The reclining motor LH is activated with the driver seat control unit.
• The seatback is reclined forward/backward by changing the rotation direction of reclining motor LH.
Component Function CheckINFOID:0000000005147554
1. CHECK FUNCTION
1. Select “SEAT RECLINING” in “Active test” mode with CONSULT-III.
2. Check the reclining motor LH operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-99, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147555
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK RECLINING MOTOR LH POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“SEAT RECLINING”) with CONSULT-lll
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> Replace reclining motor LH. (Built in seatback assembly). Refer to SE-69, "Disassembly and
Assembly".
NO >> GO TO 2
2. CHECK RECLINING MOTOR LH CIRCUIT
Test Item Description
SEAT RECLINING OFF
Seat reclining St op
FR Forward
RR Backward
Te r m i n a l
Test ItemVoltage (V)
(Approx.)
(+)
(-)
Driver
seat con- trol unit
connector Te r m i n a l
B203 36
Ground SEAT RE-
CLINING OFF 0
FR (forward) Battery voltage
RR (backward) 0
44 OFF 0
FR (forward) 0
RR (backward) Battery voltage
PIIA4802E
Revision: April 20092010 QX56

ADP-100
< COMPONENT DIAGNOSIS >
RECLINING MOTOR
1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit harness con-nector and reclining motor harness connector.
3. Check continuity between driver seat control unit harness con- nector 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 driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Reclining motor LH
connector Terminal Continuity
B203 (A) 36
B205 (B) 4
Ye s
44 3
Driver seat control unit connector Te r m i n a l
Ground Continuity
B203 (A) 36
No
44
ALJIA0322ZZ
Revision: April 20092010 QX56

LIFTING MOTOR (FRONT)ADP-101
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LIFTING MOTOR (FRONT)
DescriptionINFOID:0000000005147556
• The lifting motor (front) is installed to the power seat frame assembly.
• The lifting motor (front) is activat ed with the driver seat control unit.
• The lifter (front) is moved upward/downward by changi ng the rotation direction of lifting motor (front).
Component Function CheckINFOID:0000000005147557
1. CHECK FUNCTION
1. Select “SEAT LIFTER FR” in “A ctive test” mode with CONSULT-III.
2. Check the lifting motor (front) operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-101, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147558
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK LIFTING MOTOR (FRONT) POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“SEAT LIFTER FR”) with CONSULT-lll.
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> Replace lifting motor (front). (Built in power seat frame assembly). Refer to SE-69, "Disassembly
and Assembly".
NO >> GO TO 2
2. CHECK LIFTING MOTOR (FRONT) CIRCUIT
Test Item Description
SEAT LIFTER FR OFF
Seat lifting (front) St op
UP Upward
DWN Downward
Te r m i n a l
Te s t I t e mVoltage (V)
(Approx.)
(+)
(-)
Driver seat
control unit connector Te r m i n a l
B203 37
Ground SEAT
LIFTER
FR OFF
0
UP 0
DWN (down) Battery voltage
45 OFF
0
UP Battery voltage
DWN (down) 0
PIIA4805E
Revision: April 20092010 QX56

ADP-102
< COMPONENT DIAGNOSIS >
LIFTING MOTOR (FRONT)
1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit harness con-nector and lifting motor (front) harness connector.
3. Check continuity between driver seat control unit harness con- nector 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 driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Lifting motor (front)
connector Terminal Continuity
B203 (A) 37
B206 (B) 1
Ye s
45 5
Driver seat control unit connector Terminal
GroundContinuity
B203 (A) 37
No
45
ALJIA0323ZZ
Revision: April 20092010 QX56

LIFTING MOTOR (REAR)ADP-103
< COMPONENT DIAGNOSIS >
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LIFTING MOTOR (REAR)
DescriptionINFOID:0000000005147559
• The lifting motor (rear) is installed to the power seat frame assembly.
• The lifting motor (rear) is activated with the driver seat control unit.
• The seat lifter (rear) is moved upward/downward by c hanging the rotation direction of lifting motor (rear).
Component Function CheckINFOID:0000000005147560
1. CHECK FUNCTION
1. Select “SEAT LIFTER RR” in “Act ive test” mode with CONSULT-III.
2. Check the lifting motor (rear) operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-103, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147561
Regarding Wiring Diagram information, refer to ADP-119, "Wiring Diagram".
1. CHECK LIFTING MOTOR (REAR) POWER SUPPLY
1. Turn the ignition switch OFF.
2. Perform “Active test” (“SEAT LIFTER RR”) with CONSULT-lll
3. Check voltage between driver s eat control unit harness connec-
tor and ground.
Is the inspection result normal?
YES >> Replace lifting motor (rear). (Built in power seat frame assembly). Refer to SE-69, "Disassembly
and Assembly".
NO >> GO TO 2
2. CHECK LIFTING MOTOR (REAR) CIRCUIT
Test Item Description
SEAT LIFTER RR OFF
Seat lifting (rear) Stop
UP Upward
DWN Downward
Te r m i n a l
Test ItemVoltage (V)
(Approx.)
(+)
(-)
Driver seat
control unit connector Te r m i n a l
B203 38
Ground SEAT
LIFTER
RROFF
0
UP Battery voltage
DWN (down) 0
39 OFF
0
UP 0
DWN (down) Battery voltage
PIIA4804E
Revision: April 20092010 QX56

ADP-104
< COMPONENT DIAGNOSIS >
LIFTING MOTOR (REAR)
1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit harness con-nector and lifting motor (rear) harness connector.
3. Check continuity between driver seat control unit harness con- nector 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 driver seat control unit. Refer to ADP-174, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Driver seat control
unit connector Te r m i n a l
Lifting motor (rear)
connector Terminal Continuity
B203 (A) 38
B207 (B) 5
Ye s
39 1
Driver seat control unit connector Te r m i n a l
GroundContinuity
B203 (A) 38
No
39
ALJIA0324ZZ
Revision: April 20092010 QX56

TILT MOTORADP-105
< COMPONENT DIAGNOSIS >
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TILT MOTOR
DescriptionINFOID:0000000005147562
• The tilt motor is installed to the steering column assembly.
• The tilt motor is activated with the automatic drive positioner control unit.
• The steering column is tilted upward/downward by changing the rotation direction of tilt motor.
Component Function CheckINFOID:0000000005147563
1. CHECK FUNCTION
1. Select “TILT MOTOR” in “Act ive test” mode with CONSULT-III.
2. Check the tilt motor operation.
Is the operation of relevant parts normal?
YES >> Inspection End.
NO >> Perform diagnosis procedure. Refer to ADP-105, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000005147564
Regarding Wiring Diagram information, refer to ADP-138, "Wiring Diagram".
1. CHECK TILT MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and tilt motor assembly.
3. Check continuity between automatic drive positioner control unit connector M34 (A) terminals 35, 42 and tilt motor assembly con-
nector M86 (B) terminals 1, 5.
4. Check continuity between automat ic drive positioner control unit
connector M34 (A) terminals 35, 42 and ground.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace harness.
2. CHECK AUTOMATIC DRIVE POSITION ER CONTROL UNIT OUTPUT SIGNAL
Test item Description
TILT MOTOR OFF
Steering tilt St op
UP Upward
DWN Downward
35 - 1: Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
ALJIA0293ZZ
Revision: April 20092010 QX56

ADP-106
< COMPONENT DIAGNOSIS >
TILT MOTOR
1. Connect the automatic drive positioner control unit and tilt motor
assembly.
2. Check voltage between automatic drive positioner control unit
connector and ground.
Is the inspection result normal?
YES >> Replace tilt motor assembly. Refer to ST-19, "Removal and Installation".
NO >> GO TO 3
3. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace automatic drive positioner control unit. Refer to ADP-175, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Connector Te r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 35
Ground ADP steering switch ON
(UP operation)
Battery voltage
Other than above 0
42 ADP steering switch ON
(DOWN operation)
Battery voltage
Other than above 0
LIIA0482E
Revision: April 20092010 QX56