2004 INFINITI QX56 Air

AUTOMATIC DRIVE POSITIONER
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Seat Memory Indicator Lamp Circuit InspectionEIS002Z7
1. CHECK FUNCTION
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch indicator lamp circuit is OK.
NG >> GO TO 2.
2. CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch.
3. Check voltage between seat memory switch connector D5 ter-
minal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK SEAT MEMORY INDICATOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and seat memory switch con-
nector D5 terminals 6, 7.
4. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
Test item Description
MEMORY SW
INDCTRThe memory switch indicator is lit by receiving the drive signal.
PIIA0319E
5 (Y/R) - Ground : Battery voltage
PIIA4595E
12 (P) - 6 (P) : Continuity should exist.
13 (Y/G) - 7 (Y/G) : Continuity should exist.
12 (P) - Ground : Continuity should not exist.
13 (Y/G) - Ground : Continuity should not exist.
LIIA1022E

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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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

AUTOMATIC DRIVE POSITIONER
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2. CHECK ADP STEERING WHEEL TILT SWITCH HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit connector and ADP steering wheel tilt switch.
2. Check continuity between automatic drive positioner control unit
connector M33 terminals 1, 17 and ADP steering wheel tilt
switch connector M16 terminals 2, 3.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 1, 17 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK ADP STEERING WHEEL TILT SWITCH
Check continuity between ADP steering wheel tilt switch as follows.
OK or NG
OK >> GO TO 4.
NG >> Replace ADP steering wheel tilt switch.
4. CHECK ADP STEERING WHEEL TILT SWITCH GROUND CIRCUIT
Check continuity between ADP steering wheel tilt switch connector
M16 terminal 1 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Replace or replace harness.1 (W/G) - 2 (W/G) : Continuity should exist.
17 (G/B) - 3 (G/B) : Continuity should exist.
1 (W/G) - Ground : Continuity should not exist.
17 (G/B) - Ground : Continuity should not exist.
LIIA1434E
Te r m i n a l s
Condition Continuity
(+) (–)
2
1Tilt switch ON (UP operation) Yes
Other than above No
3Tilt switch ON (DOWN operation) Yes
Other than above No
LIIA1435E
1 (B) - Ground : Continuity should exist.
LIIA0490E

SE-84
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Front Door Switch LH Circuit InspectionEIS0 02 ZA
1. CHECK FUNCTION
With CONSULT-II
Touch "BCM" with “DOOR SW DR” on the DATA MONITOR, check
ON/OFF operation when the front door is open and closed.
*:Refer to SE-40, "DATA MONITOR" .
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> GO TO 2.
2. CHECK FRONT DOOR SWITCH LH
1. Turn ignition switch OFF.
2. Disconnect front door switch.
3. Check continuity between front door switch LH terminal 2 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace front door switch LH.
3. CHECK HARNESS CONTINUITY
1. Disconnect BCM.
2. Check continuity between BCM connector M19 terminal 47 and
front door switch LH connector B8 terminal 2.
3. Check continuity between BCM connector M19 terminal 47 and
ground.
OK or NG
OK >> Front door switch LH circuit is OK.
NG >> Repair or replace harness.
Monitor item [OPERA-
TION or UNIT]Contents
DOOR SW
DR*“ON/
OFF”Door open (ON)/door closed (OFF) status judged from
the front door switch is displayed.
PIIA0291E
Terminals
Condition Continuity
(+) (–)
2GroundWith the front door switch LH pressed No
With the front door switch LH released Yes
LIIA1493E
47 (SB) - 2 (SB) : Continuity should exist.
47 (SB) - Ground : Continuity should not exist.
LIIA1027E

SE-86
AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
3. CHECK UART LINE HARNESS
1. Disconnect driver seat control unit and automatic drive posi-
tioner control unit.
2. Check continuity between driver seat control unit connector P2
terminals 1, 17, and automatic drive positioner connector M33
terminals 10, 26.
3. Check continuity between driver seat control unit connector P2
terminals 1, 17 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4. CHECK DRIVER SEAT CONTROL UNIT
Does the automatic drive positioner operate when the driver seat control unit is exchanged?
OK or NG
OK >> Replace driver seat control unit.
NG >> Replace automatic drive positioner control unit.1 (L) - 10 (L) : Continuity should exist.
17 (W) - 26 (W) : Continuity should exist.
1 (L) - Ground : Continuity should not exist.
17 (W) - Ground : Continuity should not exist.
PIIA4598E

FRONT SEAT
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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

FRONT SEAT
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4. From inside of the seatback, squeeze the headrest holder tabs
at the base of the stay pipe and pull up to remove.
NOTE:
Before installing the headrest holder, check its orientation (front/
rear and right/left).
Assembly
Assembly is in the reverse order of disassembly.
REMOVAL OF SEATBACK ASSEMBLY
1. Remove the headrest.
2. For driver seatback unhook the j-channel. For passenger seatback, remove the seatback board from the
back of the seatback.
3. Remove the side air bag harness connector from the seat cushion.
4. Remove the mounting bolts (2 for each side) and seatback assembly.
INSTALLATION OF SEATBACK ASSEMBLY

Installation is in the reverse order of removal.
SEAT CUSHION TRIM AND PAD
Disassembly
CAUTION:

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.

When removed, the passenger seat cushion must always be placed pan side UP to prevent dam-
age.

During installation, the wire harness clips must be reinstalled in the holes they were originally in.
Do not add additional clips.

The Occupant Classification System control module can only be replaced as part of the seat cush-
ion assembly.
NOTE:
If the vehicle has been involved in a collision the seat must be inspected for damage. Refer to SRS-60, "
COL-
LISION DIAGNOSIS" .
1. Remove the power seat switch knobs, power seat switch
escutcheon and lumbar switch bezel.
2. Remove the power seat and power lumbar switches.
LRS023
LIIA1581E