sensor INFINITI QX56 2004 Factory Service Manual

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
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).
NG >> Repair or replace harness.
Lifting Sensor (Rear) Circuit InspectionEIS002YT
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 2.16 (W) - 3 (W) : Continuity should exist.
25 (LG) - 2 (LG) : Continuity should exist.
31 (L/Y) - 1 (L/Y) : Continuity should exist.
16 (W) - Ground : Continuity should not exist.
25 (LG) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0708E
Monitor item [OPERATION or UNIT]
LIFT RR PULSE —The rear lifting position (pulse) judged from
the lifting sensor (rear) is displayed.
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 10 (W) GroundLifting
motor
(rear)
operation
PIIA4563E
PIIA3278E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
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 terminals 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).
NG >> Repair or replace harness.
Pedal Adjusting Sensor Circuit InspectionEIS002YU
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 2.10 (W) - 2 (W) : Continuity should exist.
16 (W) - 3 (W) : Continuity should exist.
31 (L/Y) - 1 (L/Y) : Continuity should exist.
10 (W) - Ground : Continuity should not exist.
16 (W) - Ground : Continuity should not exist.
31 (L/Y) - Ground : Continuity should not exist.
LIIA0709E
Monitor item [OPERA-
TION or UNIT]Contents
PEDAL
SEN“V”The pedal adjusting position (voltage) judged from the
pedal adjust sensor signal is displayed.
PIIA4568E
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M33 8 (BR/Y) GroundPedal
front end position0.5
Pedal
back end position4.5
PIIA4569E

SE-60
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
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 connector 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 Check EIS002YV
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 the malfunctioning parts, and check the symptom again.8 (BR/Y) - 4 (BR/Y) : Continuity should exist.
33 (W/L) - 3 (W/L) : Continuity should exist.
41 (W/G) - 5 (W/G) : Continuity should exist.
8 (BR/Y) - Ground : Continuity should not exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1003E

AUTOMATIC DRIVE POSITIONER
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2. CHECK MIRROR SENSOR INSPECTION
With CONSULT–II
Check that “ON” is displayed on “MIR/SE LH R–L, MIR/SE 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 mirror 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.
Monitor item [OPERATION or
UNIT]Contents
MIR/
SENLHR–L“V”Voltage output from door mirror LH sensor (LH/
RH) is displayed.
MIR/
SENLHU–D“V”Voltage output from door mirror LH sensor (UP/
DOWN) is displayed.
Con-
nectorTerminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
D47 (L/Y)
GroundMirror motor is
operated UP or
DOWN Changes between
3.4 (close to peak) –
0.6 (close to valley)
8 (G)Mirror motor is
operated LEFT or
RIGHTChanges between
3.4 (close to right edge) –
0.6 (close to left edge)
PIIA0197E
LIIA1482E
33 (W/L) - 5 (W/L) : Continuity should exist.
41 (W/G) - 6 (W/G) : Continuity should exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1483E

SE-62
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK HARNESS CONTINUITY 2
1. Disconnect automatic drive positioner control unit and door mirror 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.
NG >> Repair or replace harness.
Mirror Sensor RH Circuit Check EIS002YW
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 the malfunctioning parts, and check the symptom again.
2. CHECK MIRROR SENSOR INSPECTION
With CONSULT–II
Check that “ON” is displayed on “MIR/SE RH R–L, MIR/SE 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 3.6 (L/Y) - 7 (L/Y) : Continuity should exist.
22 (G) - 8 (G) : Continuity should exist.
6 (L/Y) - Ground : Continuity should not exist.
22 (G) - Ground : Continuity should not exist.
LIIA1484E
Monitor item [OPERATION
or UNIT]Contents
MIR/
SENRHR–L“V”Voltage output from door mirror RH sensor (LH/
RH) is displayed.
MIR/
SENRHU–D“V”Voltage output from door mirror RH sensor (UP/
DOWN) is displayed.
Con-
nectorTerminals (Wire color)
ConditionVoltage(V)
(Approx.)
(+) (–)
D1077 (R/B)
GroundMirror motor is
operated UP or
DOWN Changes between
3.4 (close to peak) –
0.6 (close to valley)
8 (L/W)Mirror motor is
operated LEFT or
RIGHTChanges between
3.4 (close to left edge) –
0.6 (close to right edge)
PIIA0197E
LIIA1485E

SE-64
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Steering Wheel Tilt Sensor Circuit InspectionEIS0038M
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.
Monitor item [OPERA-
TION or UNIT]Contents
TILT
SEN“V”The tilt position (voltage) judged from the tilt sensor sig-
nal is displayed.
PIIA0295E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M33 7 (Y/BR) GroundPedal
front end position0.6
Pedal
back end position4.5
LIIA0485E

AUTOMATIC DRIVE POSITIONER
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2. CHECK HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and steering wheel tilt sensor connector.
2. Check continuity between automatic drive positioner connector M33, M34 terminals 7, 33, 41 and steering
wheel tilt sensor connector 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.
NG >> Repair or replace harness.7 (Y/BR) - 3 (Y/BR) : Continuity should exist.
33 (W/L) - 2 (W/L) : Continuity should exist.
41 (W/G) - 4 (W/G) : Continuity should exist.
7 (Y/BR) - Ground : Continuity should not exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1432E

SE-80
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
1. Connect seat memory switch.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> Replace automatic drive positioner control unit.
NG >> Replace seat memory switch.
Door Mirror Sensor Power Supply and Ground Circuit inspectionEIS002Z8
1. CHECK DOOR MIRROR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and door mirror (LH and RH).
2. Check continuity between automatic drive positioner control unit connector M34 terminals 33, 41 and door
mirror connector D4 (LH), D107 (RH) 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 2.
NG >> Repair or replace harness.
2. CHECK MIRROR SENSOR POWER SUPPLY
1. Connect automatic drive positioner control unit and door mirror
LH.
2. Turn ignition switch to ACC.
3. Check voltage between automatic drive positioner control unit
connector M34 terminal 33 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace automatic drive positioner control unit.12 (P) - Ground : Battery voltage
13 (Y/G) - Ground : Battery voltage
LIIA1134E
33 (W/L) - 5 (W/L) : Continuity should exist.
41 (W/G) - 6 (W/G) : Continuity should exist.
33 (W/L) - Ground : Continuity should not exist.
41 (W/G) - Ground : Continuity should not exist.
LIIA1023E
33 (W/L) - Ground : Approx. 5V
LIIA1136E

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56
3. CHECK MIRROR SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between automatic drive positioner control unit
connector M34 terminal 41 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace automatic drive positioner control unit.
A/T Device (Detent Switch) Circuit InspectionEIS002Z9
1. CHECK FUNCTION
With CONSULT-II
Check that when the A/T shift lever is in P position, “DETENT SW”
on the DATA MONITOR becomes OFF.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> A/T device (detent switch) circuit is OK.
NG >> GO TO 2.
2. CHECK A/T DEVICE (DETENT SWITCH) HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/T device and driver seat control unit.
3. Check continuity between A/T device connector M203 terminal 6
and driver seat control unit connector P2 terminal 21.
4. Check continuity between A/T device connector M203 terminal 6
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.41 (W/G) - Ground : Continuity should exist.
LIIA1135E
Monitor item
[OPERATION or UNIT]Contents
DETENT SW“ON/
OFF”The selector lever position “P position (OFF)/other than P
position (ON)” judged from the park switch signal is dis-
played.
PIIA0291E
6 (L/R) - 21 (L/R) : Continuity should exist.
6 (L/R) - Ground : Continuity should not exist.
LIIA1024E

FRONT SEAT
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Revision: August 20072004 QX56
Removal and InstallationEIS007N5
REMOVAL
NOTE:
When removing or installing the seat trim, handle it carefully to keep dirt out and avoid damage.
CAUTION:

Before removing the front seat, turn the ignition switch off, disconnect both battery cables and
wait at least 3 minutes.

When checking the power seat circuit for continuity using a circuit tester, do not confuse its con-
nector with the side air bag module connector. Such an error may cause the air bag to deploy.

Do not drop, tilt, or bump the side air bag module while installing the seat. Always handle it with
care.

After front side air bag module inflates, front seatback assembly must be replaced.

Front passenger seat is equipped with an Occupant Classification System sensor and control
module. Do not disassemble front passenger seat cushion assembly or remove the trim as this
will affect the Occupant Classification System calibration.

Always replace passenger seat cushion as an assembly.
1. Slide the seat until the four body mounting bolts are visible and a tool can be inserted.
NOTE:

If disassembling the seat after removal, set the front/rear cushion lifters to the top position.
2. Disconnect both battery cables and wait at least 3 minutes.
3. Disconnect the side air bag module harness connector.
4. Remove the four body mounting bolts.
5. Disconnect the power seat harness connectors and remove the seat from the vehicle.
NOTE:
When removing and installing the seat, use shop cloths to protect the vehicle from damage.
INSTALLATION

Installation is in the reverse order of removal.
Disassembly and AssemblyEIS002ZJ
SEATBACK TRIM AND PAD
Disassembly
NOTE:
Only complete seatback assemblies can be replaced on vehicles equipped with side air bags.
NOTE:
Be sure to set the front/rear cushion lifter to the top position.
Driver Seat
1. Remove the headrest.
7. Outboard reclining arm outer cover 8. Outboard reclining arm inner cover 9. Inboard reclining arm inner cove
10. Latch cover 11. LH outer leg cover 12. Outboard reclining arm inner cover
13. Seat cushion inner cover 14. Passenger seat wiring harness 15. Inner front leg cover
16. Power seat frame assembly 17. NVH assembly 18. Seat cushion front finisher
19. Outer pedestal finisher 20. Seat cushion outer finisher 21. Seat cushion assembly
22. Power seat switch escutcheon 23. Slide switch knob 24. Recliner switch knob
25. Seatback assembly 26. Headrest holder 27. Seat slide/ recline switch
28. Power lumbar switch