INFINITI QX56 2006 Factory Service Manual

SE-50
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
2. CHECK FUNCTION
With CONSULT-II
Check operation with “TILT MOTOR” in ACTIVE TEST.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Steering wheel tilt motor circuit is OK.
NG >> GO TO 3.
3. CHECK STEERING WHEEL TILT MOTOR HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and steering wheel tilt motor.
3. Check continuity between automatic drive positioner control unit connector M34 terminals 35, 42 and steering wheel tilt motor
connector M68 terminals 1, 5.
4. Check continuity between automatic drive positioner control unit connector M34 terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector and steering wheel tilt motor.
2. Check voltage between automatic drive positioner control unit connector and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9, "TILT MOTOR AND TILT SENSOR" .
NG >> Replace automatic drive positioner control unit.
Test item Description
TILT MOTOR The pedal adjust motor is activated by receiving the drive signal.
PIIA0280E
35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
LIIA1431E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M34 35
Ground Tilt switch ON
(UP operation)
Battery voltage
Other than above 0
42 Tilt switch ON
(DOWN operation)
Battery voltage
Other than above 0
LIIA0482E

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Revision: November 2009 2006 QX56
Sliding Sensor Circuit InspectionEIS004XZ
1. CHECK FUNCTION
With CONSULT-II
Check operation with “SLIDE PULSE ” on the DATA MONITOR to
make sure the pulse changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and ground, with oscilloscope.
OK or NG
OK >> Sliding sensor circuit is OK.
NG >> GO TO 2.
2. CHECK SLIDING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit connector and sliding motor LH.
2. Check continuity between driver seat control unit connector P2 terminals 16, 24, 31 and sliding motor P4 terminals 1, 2, 3.
3. Check continuity between driver seat control unit P2 terminals 16, 24, 31 and ground.
OK or NG
OK >> Replace sliding motor. Refer to SE-91, "FRONT SEAT" .
NG >> Repair or replace harness.
Monitor item [OPERATION or UNIT] Contents
SLIDE PULSE —The seat sliding position (pulse) judged
from the sliding sensor signal is displayed
PIIA4558E
Connector Te r m i n a l s
Condition Signal
(+) (-)
P2 24 Ground Sliding
motor
operation
PIIA4556E
PIIA3277E
16 - 3 : Continuity should exist.
24 - 2 : Continuity should exist.
31 - 1 : Continuity should exist.
16 - Ground : Continuity should not exist.
24 - Ground : Continuity should not exist.
31 - Ground : Continuity should not exist.
LIIA0706E

SE-52
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
Reclining Sensor Circuit InspectionEIS004Y0
1. CHECK FUNCTION
With CONSULT-II
Check operation with “RECLN PULSE” on the DATA MONITOR to
make sure the pulse changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and ground, with oscilloscope.
OK or NG
OK >> Reclining sensor circuit is OK.
NG >> GO TO 2.
2. CHECK RECLINING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and reclining motor LH.
2. Check continuity between driver seat control unit connector P2 terminals 9, 31 and reclining motor LH connector P5 terminals 1,
2.
3. Check continuity between driver seat control unit connector P2 terminals 9, 31 and ground.
OK or NG
OK >> Replace reclining motor. Refer to SE-91, "FRONT SEAT" .
NG >> Repair or replace harness.
Monitor item [OPERATION or UNIT] Contents
RECLN PULSE —The seat reclining position (pulse) judged
from the reclining sensor is displayed
PIIA4558E
Connector Te r m i n a l s
Condition Signal
(+) (-)
P2 9 Ground Reclining
motor
operation
PIIA4559E
PIIA3278E
9 - 1 : Continuity should exist.
31 - 2 : Continuity should exist.
9 - Ground : Continuity should not exist.
31 - Ground : Continuity should not exist.
LIIA0707E

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Revision: November 2009 2006 QX56
Lifting Sensor (Front) Circuit InspectionEIS004Y1
1. CHECK FUNCTION
With CONSULT-II
Check operation with “LIFT FR PULSE ” on the DATA MONITOR to
make sure the pulse changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and ground, with oscilloscope.
OK or NG
OK >> Front lifting sensor is OK.
NG >> GO TO 2.
2. CHECK FRONT LIFTING MOTOR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect driver seat control unit and lifting motor (front).
2. Check continuity between driver seat control unit connector P2 terminals 16, 25, 31 and lifting motor (front) connector P6 terminals 1, 2, 3.
3. Check continuity between driver seat control unit connector P2 terminals 16, 25, 31 and ground.
OK or NG
OK >> Replace lifting motor (front). Refer to SE-91, "FRONT SEAT" .
NG >> Repair or replace harness.
Monitor item [OPERATION or UNIT] Contents
LIFT FR PULSE —The front lifting position (pulse) judged from
the lifting sensor (front) is displayed
PIIA4558E
Connector Terminals
Condition Signal
(+) (-)
P2 25 Ground Lifting
motor
(front)
operation
PIIA4561E
PIIA3278E
16 - 3 : Continuity should exist.
25 - 2 : Continuity should exist.
31 - 1 : Continuity should exist.
16 - Ground : Continuity should not exist.
25 - Ground : Continuity should not exist.
31 - Ground : Continuity should not exist.
LIIA0708E

SE-54
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
Lifting Sensor (Rear) Circuit InspectionEIS004Y2
1. CHECK FUNCTION
With CONSULT-II
Check operation with “LIFT RR PULSE ” on the DATA MONITOR to
make sure pulse changes.
Without CONSULT-II
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-91, "FRONT SEAT" .
NG >> Repair or replace harness.
Monitor item [OPERATION or UNIT]
LIFT RR PULSE —The rear lifting position (pulse) judged from
the lifting sensor (rear) is displayed.
PIIA4558E
Connector Te r m i n a l s
Condition Signal
(+) (-)
P2 10 Ground Lifting
motor (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

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Revision: November 2009 2006 QX56
Pedal Adjusting Sensor Circuit InspectionEIS004Y3
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
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.
Monitor item [OPERATION or UNIT] Contents
PEDAL SEN “V ” The pedal adjusting position (voltage) judged
from the pedal adjust sensor signal is displayed.
PIIA4568E
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 8 Ground Pedal 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-56
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
Mirror Sensor LH Circuit Check EIS004Y4
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 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.
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-
nector Terminals
Condition Voltage (V)
(Approx.)
(+) (-)
D4 7
Ground Mirror motor is
operated UP or
DOWN
Changes between
3.4 (close to peak) -
0.6 (close to valley)
8 Mirror motor is
operated LEFT or
RIGHT Changes between
3.4 (close to right edge) - 0.6 (close to left edge)
LIIA1482E

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Revision: November 2009 2006 QX56
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
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-94, "Door Mirror Assembly" .
NG >> Repair or replace harness.
Mirror Sensor RH Circuit Check EIS004Y5
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. 33 - 5
: Continuity should exist.
41 - 6 : Continuity should exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1483E
6 - 7: Continuity should exist.
22 - 8 : Continuity should exist.
6 - Ground : Continuity should not exist.
22 - Ground : Continuity should not exist.
LIIA1484E

SE-58
AUTOMATIC DRIVE POSITIONER
Revision: November 20092006 QX56
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
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.
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-
nector Terminals
Condition Voltage(V)
(Approx.)
(+) (-)
D107 7
Ground Mirror motor is
operated UP or
DOWN
Changes between
3.4 (close to peak) - 0.6 (close to valley)
8 Mirror motor is
operated LEFT or
RIGHT Changes between
3.4 (close to left edge) -
0.6 (close to right edge)
LIIA1485E
33 - 5 : Continuity should exist.
41 - 6 : Continuity should exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1486E

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Revision: November 2009 2006 QX56
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-94, "Door Mirror Assembly" .
NG >> Repair or replace harness.
Steering Wheel Tilt Sensor Circuit InspectionEIS004Y6
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-II
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. 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
Connector Terminals
ConditionVoltage (V)
(Approx.)
(+) (-)
M33 7 Ground Pedal front end position 0.6
Pedal back end position 4.5
LIIA0485E