service INFINITI QX56 2007 Factory Service Manual

SE-50
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> Rear lifting sensor circuit is OK.
NG >> GO TO 2.
2.CHECK REAR LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (rear).
2. Check continuity between driver seat control unit connector P2
terminals 10, 16, 31 and lifting motor (rear) connector P7 termi-
nals 1, 2, 3.
3. Check continuity between driver seat control unit connector P2
terminals 10, 16, 31 and ground.
OK or NG
OK >> Replace lifting motor (rear). Refer to SE-83.
NG >> Repair or replace harness.
Pedal Adjusting Sensor Circuit InspectionINFOID:0000000003533185
1.CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “PEDAL SEN” on the DATA
MONITOR to make sure the voltage changes.
Without CONSULT-II
ConnectorTe r m i n a l s
Condition Signal
(+) (-)
P2 10 GroundLifting mo-
tor (rear)
operation
PIIA4563E
PIIA3278E
10 - 2 : Continuity should exist.
16 - 3 : Continuity should exist.
31 - 1 : Continuity should exist.
10 - Ground : Continuity should not exist.
16 - Ground : Continuity should not exist.
31 - Ground : Continuity should not exist.
LIIA0709E
Monitor item [OPERATION or
UNIT]Contents
PEDAL SEN “V”The pedal adjusting position (voltage) judged
from the pedal adjust sensor signal is displayed.
PIIA4568E

AUTOMATIC DRIVE POSITIONER
SE-51
< SERVICE INFORMATION >
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1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Pedal adjusting sensor circuit is OK.
NG >> GO TO 2.
2.CHECK PEDAL ADJUSTING SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and pedal
adjusting sensor.
2. Check continuity between automatic drive positioner connector
M33, M34 terminals 8, 33, 41 and pedal adjusting sensor con-
nector E110 terminals 3, 4, 5.
3. Check continuity between automatic drive positioner control unit
connector M33, M34 terminals 8, 33, 41 and ground.
OK or NG
OK >> Replace pedal adjusting motor.
NG >> Repair or replace harness.
Mirror Sensor LH Circuit InspectionINFOID:0000000003533186
1.CHECK DOOR MIRROR FUNCTION
Check the following items.
Operation malfunction in memory control
NOTE:
If a door mirror face position is set to an implausible angle, the set position may not be reproduced.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning parts, and check the symptom again.
2.CHECK MIRROR SENSOR INSPECTION
With CONSULT-II
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 8 GroundPedal front end position 0.5
Pedal back end position 4.5
PIIA4569E
8 - 4 : Continuity should exist.
33 - 3 : Continuity should exist.
41 - 5 : Continuity should exist.
8 - Ground : Continuity should not exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1003E

SE-52
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Check that “ON” is displayed on “MIR/SEN LH R-L, MIR/
SEN LH U-D" in the DATA MONITOR.
Without CONSULT-II
1. Turn ignition switch to ACC.
2. Check voltage between door mirror LH connector and ground.
OK or NG
OK >> Mirror sensor LH is OK.
NG >> GO TO 3.
3.CHECK HARNESS CONTINUITY 1
1. Disconnect automatic drive positioner control unit and door mir-
ror LH.
2. Check continuity between automatic drive positioner control unit
connector M34 terminals 33, 41 and door mirror LH connector
D4 terminals 5, 6.
3. Check continuity between automatic drive positioner control unit
connector M34 terminal 33, 41 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK HARNESS CONTINUITY 2
Monitor item [OPERATION or
UNIT]Contents
MIR/SEN LH R-L “V”Voltage output from door mirror LH sensor (LH/
RH) is displayed.
MIR/SEN LH U-D “V”Voltage output from door mirror LH sensor (UP/
DOWN) is displayed.
PIIA4568E
Con-
nectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
D47
GroundMirror motor is op-
erated UP or
DOWN Changes between
3.4 (close to peak) -
0.6 (close to valley)
8Mirror motor is op-
erated LEFT or
RIGHTChanges between
3.4 (close to right edge) -
0.6 (close to left edge)
LIIA1482E
33 - 5 : Continuity should exist.
41 - 6 : Continuity should exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1483E

AUTOMATIC DRIVE POSITIONER
SE-53
< SERVICE INFORMATION >
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1. Disconnect automatic drive positioner control unit and door mir-
ror LH.
2. Check continuity between automatic drive positioner control unit
connector M33 terminals 6, 22 and door mirror LH connector D4
terminals 7, 8.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 6, 22 and ground.
OK or NG
OK >> Replace door mirror LH. Refer to GW-84, "Door Mirror Assembly".
NG >> Repair or replace harness.
Mirror Sensor RH Circuit InspectionINFOID:0000000003533187
1.CHECK DOOR MIRROR FUNCTION
Check the following items.
Operation malfunction in memory control
NOTE:
If a door mirror face position is set to an implausible angle, the set position may not be reproduced.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace the malfunctioning parts, and check the symptom again.
2.CHECK MIRROR SENSOR INSPECTION
With CONSULT-II
Check that “ON” is displayed on “MIR/SEN RH R-L, MIR/
SEN RH U-D" in the DATA MONITOR.
Without CONSULT-II
1. Turn ignition switch to ACC.
2. Check voltage between door mirror RH connector and ground.
OK or NG
6 - 7 : Continuity should exist.
22 - 8 : Continuity should exist.
6 - Ground : Continuity should not exist.
22 - Ground : Continuity should not exist.
LIIA1484E
Monitor item [OPERATION or
UNIT]Contents
MIR/SEN RH R-L “V”Voltage output from door mirror RH sensor (LH/
RH) is displayed.
MIR/SEN RH U-D “V”Voltage output from door mirror RH sensor (UP/
DOWN) is displayed.
PIIA4568E
Con-
nectorTe r m i n a l s
ConditionVoltage(V)
(Approx.)
(+) (-)
D1077
GroundMirror motor is op-
erated UP or
DOWN Changes between
3.4 (close to peak) -
0.6 (close to valley)
8Mirror motor is op-
erated LEFT or
RIGHTChanges between
3.4 (close to left edge) -
0.6 (close to right edge)
LIIA1485E

SE-54
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
OK >> Mirror sensor RH is OK.
NG >> GO TO 3.
3.CHECK HARNESS CONTINUITY 1
1. Disconnect automatic drive positioner control unit and door mir-
ror RH.
2. Check continuity between automatic drive positioner control unit
connector M34 terminals 33, 41 and door mirror RH connector
D107 terminals 5, 6.
3. Check continuity between automatic drive positioner control unit
connector M34 terminals 33, 41 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK HARNESS CONTINUITY 2
1. Disconnect automatic drive positioner control unit and door mir-
ror RH.
2. Check continuity between automatic drive positioner control unit
connector M33 terminals 5, 21 and door mirror RH connector
D107 terminals 7, 8.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 5, 21 and ground.
OK or NG
OK >> Replace door mirror RH. Refer to GW-84, "Door Mirror Assembly".
NG >> Repair or replace harness.
Steering Wheel Tilt Sensor Circuit InspectionINFOID:0000000003533188
1.CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “TILT SEN” on the DATA
MONITOR to make sure the voltage changes.
Without CONSULT-II33 - 5 : Continuity should exist.
41 - 6 : Continuity should exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1486E
5 - 7 : Continuity should exist.
21 - 8 : Continuity should exist.
5 - Ground : Continuity should not exist.
21 - Ground : Continuity should not exist.
LIIA1473E
Monitor item [OPERA-
TION or UNIT]Contents
TILT SEN “V”The tilt position (voltage) judged from the tilt sensor sig-
nal is displayed.
PIIA0295E

AUTOMATIC DRIVE POSITIONER
SE-55
< SERVICE INFORMATION >
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1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner connector
and ground.
OK or NG
OK >> Steering wheel tilt sensor circuit is OK.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and steering
wheel tilt sensor.
2. Check continuity between automatic drive positioner connector
M33, M34 terminals 7, 33, 41 and steering wheel tilt sensor con-
nector M69 terminals 2, 3, 4.
3. Check continuity between automatic drive positioner control unit
connectors M33, M34 terminals 7, 33, 41 and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9,
"Removal and Installation".
NG >> Repair or replace harness.
Sliding Switch Circuit InspectionINFOID:0000000003533189
1.CHECK FUNCTION
With CONSULT-II
With “SLIDE SW-FR, SLIDE SW-RR” on the DATA MONITOR, oper-
ate the sliding switch to check ON/OFF operation.
Without CONSULT-II
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 7 GroundPedal front end position 0.6
Pedal back end position 4.5
LIIA0485E
7 - 3 : Continuity should exist.
33 - 2 : Continuity should exist.
41 - 4 : Continuity should exist.
7 - Ground : Continuity should not exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1432E
Monitor item [OPERATION
or UNIT]Contents
SLIDE SW-FR"ON/
OFF"ON / OFF status judged from the sliding switch (FR)
signal is displayed.
SLIDE SW-RR"ON/
OFF"ON / OFF status judged from the sliding switch (RR)
signal is displayed.
PIIA0313E

SE-56
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Sliding switch circuit is OK.
NG >> GO TO 2.
2.CHECK SLIDING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and power seat
switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 11, 26 and power seat switch LH connector P8 termi-
nals 1, 7.
3. Check continuity between driver seat control unit connector P2
terminals 11, 26 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK SLIDING SWITCH
Check continuity between power seat switch LH terminals as fol-
lows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH. Refer to SE-83
.
Reclining Switch InspectionINFOID:0000000003533190
1.CHECK FUNCTION
With CONSULT-II
ConnectorTe r m i n a l
ConditionVoltage (V) (Ap-
prox.)
(+) (-)
P211
GroundSliding switch ON (BACK-
WARD operation)0
Other than above Battery voltage
26Sliding switch ON (FOR-
WARD operation)0
Other than above Battery voltage
PIIA4577E
11 - 7 : Continuity should exist.
26 - 1 : Continuity should exist.
11 - Ground : Continuity should not exist.
26 - Ground : Continuity should not exist.
LIIA1125E
Terminals Condition Continuity
7
3Sliding switch ON (BACKWARD operation) Yes
Other than above No
1Sliding switch ON (FORWARD operation) Yes
Other than above No
LIIA1126E

AUTOMATIC DRIVE POSITIONER
SE-57
< SERVICE INFORMATION >
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With “RECLN SW-FR, RECLN SW-RR” on the DATA MONITOR,
operate the reclining switch to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Reclining switch circuit is OK.
NG >> GO TO 2.
2.CHECK RECLINING SWITCH CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 12, 27 and power seat switch LH connector P8 termi-
nals 9, 10.
3. Check continuity between driver seat control unit connector P2
terminals 12, 27 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.RECLINING SWITCH INSPECTION
Monitor item [OPERATION or
UNIT]Contents
RECLN SW-FR“ON/
OFF”ON/OFF status judged from the reclining switch
(FR) signal is displayed.
RECLN SW-RR“ON/
OFF”ON/OFF status judged from the reclining switch
(RR) signal is displayed.
PIIA0313E
ConnectorTe r m i n a l s
ConditionVoltage (V) (Ap-
prox.)
(+) (-)
P212
GroundReclining switch ON
(BACKWARD operation)0
Other than above Battery voltage
27Reclining switch ON
(FORWARD operation)0
Other than above Battery voltage
PIIA4580E
12 - 9 : Continuity should exist.
27 - 10 : Continuity should exist.
12 - Ground : Continuity should not exist.
27 - Ground : Continuity should not exist.
LIIA1127E

SE-58
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Check continuity between power seat switch LH terminals as fol-
lows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH. Refer to SE-83
.
Lifting Switch (Front) Circuit InspectionINFOID:0000000003533191
1.CHECK FUNCTION
With CONSULT-II
With “LIFT FR SW-UP, LIFT FR SW-DN” on the DATA MONITOR,
operate the lifting switch (front) to check ON/OFF operation.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> Lifting switch (front) circuit is OK.
NG >> GO TO 2.
2.CHECK LIFTING SWITCH (FRONT) CIRCUIT HARNESS CONTINUITY
Terminal Condition Continuity
9
3Reclining switch ON (BACKWARD operation) Yes
Other than above No
10Reclining switch ON (FORWARD operation) Yes
Other than above No
LIIA1128E
Monitor item [OPERATION
or UNIT]Contents
LIFT FR SW-DN"ON/
OFF"ON / OFF status judged from the FR lifter switch
(DOWN) signal is displayed.
LIFT FR SW-UP"ON/
OFF"ON / OFF status judged from the FR lifter switch (UP)
signal is displayed.
PIIA0323E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
P213
GroundLifting switch (front) ON
(DOWN operation)0
Other than above Battery voltage
28Lifting switch (front) ON
(UP operation)0
Other than above Battery voltage
PIIA4583E

AUTOMATIC DRIVE POSITIONER
SE-59
< SERVICE INFORMATION >
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1. Disconnect driver seat control unit and power seat switch LH.
2. Check continuity between driver seat control unit connector P2
terminals 13, 28 and power seat switch LH connector P2 termi-
nals 5, 6.
3. Check continuity between driver seat control unit connector P2
terminals 13, 28 and ground
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK LIFTING SWITCH (FRONT)
Check continuity between power seat switch LH terminals as fol-
lows.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace power seat switch LH. Refer to SE-83
.
Lifting Switch (Rear) Circuit InspectionINFOID:0000000003533192
1.CHECK FUNCTION
With CONSULT-II
With “LIFT RR SW-UP, LIFT RR SW-DN” on the DATA MONITOR,
operate the rear lifting switch to check ON/OFF operation.
Without CONSULT-II13 - 5 : Continuity should exist.
28 - 6 : Continuity should exist.
13 - Ground : Continuity should not exist.
28 - Ground : Continuity should not exist.
LIIA1129E
Terminals Condition Continuity
5
3Lifting switch (front) ON (DOWN operation) Yes
Other than above No
6Lifting switch (front) ON (UP operation) Yes
Other than above No
LIIA1130E
Monitor item [OPERATION or
UNIT]Contents
LIFT RR SW-UP “ON/OFF”Operation (ON)/open (OFF) status judged from
the RR lifter switch (UP) signal is displayed.
LIFT RR SW-
DN“ON/OFF”Operation (ON)/open (OFF) status judged from
the RR lifter switch (DOWN) signal is displayed.
PIIA0323E