2007 INFINITI QX56 sensor

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
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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

AUTOMATIC DRIVE POSITIONER
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Door Mirror Sensor Power Supply and Ground Circuit inspectionINFOID:0000000003533200
1.CHECK DOOR MIRROR SENSOR CIRCUIT HARNESS CONTINUITY
1. Disconnect automatic drive positioner control unit and door mir-
ror (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.
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 (Park Position Switch) Circuit InspectionINFOID:0000000003533201
1.CHECK FUNCTION
With CONSULT-II33 - 5 : Continuity should exist.
41 - 6 : Continuity should exist.
33 - Ground : Continuity should not exist.
41 - Ground : Continuity should not exist.
LIIA1023E
33 - Ground : Approx. 5V
LIIA1136E
41 - Ground : Continuity should exist.
LIIA1135E

FRONT SEAT
SE-85
< SERVICE INFORMATION >
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REMOVAL
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 connec-
tor 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 mod-
ule. 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 AssemblyINFOID:0000000003533211
SEATBACK TRIM AND PAD
WARNING:
Removal of front side air bag module should only be done to allow deployment of front side air bag
module prior to disposal of seatback assembly.
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.
1. Headrest 2. Headrest holder with multi-position
lock 3. Seatback board
4. Armrest assembly 5. Lumbar switch bezel 6. Fold flat link bar
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).
Removal of seatback assembly
1. After completing the steps 1 and 2 of "Seatback Trim and Pad", remove the side air bag harness connec-
tor from the seat cushion.
2. 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 (DRIVER) OR SEAT CUSHION ASSEMBLY (PASSENGER)
CAUTION:
• Front passenger seat is equipped with an Occupant Classification System sensor and control mod-
ule. 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 damage.
• During installation, the wire harness clips must be reinstalled in the holes they were originally in.
Do not add clips.
• The Occupant Classification System control module can only be replaced as part of the seat cushion
assembly.
NOTE:
If the vehicle has been involved in a collision the seat must be inspected for damage. Refer to SRS-49
.
1. Remove the power seat switch knobs, power seat switch
escutcheon and lumbar switch bezel.
2. Remove the power seat and power lumbar switches.
3. Remove four bolts and the seat cushion assembly.
4. Remove the retainer on the seat cushion frame, then remove the harness connector for the seat heater.
LRS023
LIIA1581E
SIIA0503E

SRS-1
RESTRAINTS
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SECTION SRS
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SRS
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CONTENTS
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for SRS "AIR BAG" and "SEAT BELT
PRE-TENSIONER" Service ......................................
2
Occupant Classification System Precaution .............2
PREPARATION ...................................................3
Special Service Tool .................................................3
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS) ...................................................................
4
SRS Configuration ....................................................4
Driver Air Bag Module ...............................................5
Front Passenger Air Bag Module ..............................5
Front Side Air Bag .....................................................5
Side Curtain Air Bag ..................................................5
Front Seat Belt Pre-tensioner with Load Limiter .......6
Occupant Classification System (OCS) ....................6
Direct-connect SRS Component Connectors ............6
TROUBLE DIAGNOSIS ......................................8
Trouble Diagnosis Introduction .................................8
SRS Component Parts Location .............................10
Schematic ...............................................................11
Wiring Diagram - SRS - ...........................................12
CONSULT-II Function (AIR BAG) ...........................17
CONSULT-II Function .............................................18
Self-Diagnosis Function (Without CONSULT-II) .....19
SRS Operation Check .............................................20
Trouble Diagnosis with CONSULT-II ......................21
Trouble Diagnosis without CONSULT-II .................28
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn Off ...................................................
32
Trouble Diagnosis: "AIR BAG" Warning Lamp
Does Not Turn On ...................................................
33
DRIVER AIR BAG MODULE ............................35
Removal and Installation .........................................35
SPIRAL CABLE ................................................37
Removal and Installation .........................................37
FRONT PASSENGER AIR BAG MODULE ......39
Removal and Installation .........................................39
SIDE CURTAIN AIR BAG MODULE ................42
Removal and Installation .........................................42
CRASH ZONE SENSOR ...................................44
Removal and Installation .........................................44
SIDE AIR BAG (SATELLITE) SENSOR ...........45
Removal and Installation .........................................45
FRONT SEAT BELT PRE-TENSIONER ...........46
Removal and Installation .........................................46
DIAGNOSIS SENSOR UNIT .............................47
Removal and Installation .........................................47
OCCUPANT CLASSIFICATION SYSTEM
CONTROL UNIT ................................................
48
Removal and Installation .........................................48
COLLISION DIAGNOSIS ..................................49
For Frontal Collision ................................................49
For Side and Rollover Collision ...............................50

SRS-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532849
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
INFOID:0000000003532850
• Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bags and seat belt
pre-tensioners to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
• The air diagnosis sensor unit must always be installed with the arrow mark “⇐” pointing toward the front of
the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or rust
before installation and replace as required.
• The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
• Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
• Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
• After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Occupant Classification System PrecautionINFOID:0000000003532851
Replace control unit and passenger front seat cushion as an assembly.

SRS-4
< SERVICE INFORMATION >
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SRS ConfigurationINFOID:0000000003532853
The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module, front seat belt pre-tensioners
and seat belt buckle pre-tensioner assemblies are activated in a frontal collision but not in a side collision.
SRS configurations for some collision modes are as follows:
WHIA0215E
SRS configuration Frontal collision Left side collisionRight side colli-
sionRollover
Driver air bag module x — — —
Front passenger air bag module x — — —
Front LH seat belt pre-tensioner x — — x
Front LH seat belt buckle pre-tensioner assembly x — — x
Front RH seat belt pre-tensioner x — — x
Front RH seat belt buckle pre-tensioner assembly x — — x
Front LH side air bag module — x — —
Front RH side air bag module — — x —
LH side curtain air bag module — x — x
RH side curtain air bag module — — x x