INFINITI QX56 2008 Factory Service Manual

DRIVER AIR BAG MODULESR-5
< ON-VEHICLE REPAIR >
C
DE
F
G
I
J
K L
M A
B
SR
N
O P
ON-VEHICLE REPAIR
DRIVER AIR BAG MODULE
Removal and InstallationINFOID:0000000001602201
REMOVAL
CAUTION:
• Do not attempt to repair or replace damaged direct-connect SRS component connectors. If a driver air bag direct-connect harness connector is damaged, the spiral cable must be replaced.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Remove the left and right side bolts.
2. Lift the driver air bag module from the steering wheel.
3. Disconnect the air bag harness and horn connectors, then remove the driver air bag module. • For removal/installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS
Component Connectors".
CAUTION:
• When servicing the SRS, do not work from directly in front of air bag module.
• Always place air bag module wi th pad side facing upward.
• Do not insert any foreign object s (screwdriver, etc.) into air
bag module or harness connectors.
• Do not disassemble air bag module.
• Do not use old bolts after removal; replace with new bolts.
• Do not expose the air bag mo dule to temperatures exceeding
90° C (194 °F).
1. Horn harness 2. Steering wheel hook3. Inflator harness
4. Side lids RH/LH 5. Driver air bag module6. Steering wheel
WHIA0159E
LHIA0052E
Revision: March 2010 2008 QX56

SR-6
< ON-VEHICLE REPAIR >
DRIVER AIR BAG MODULE
• Replace the air bag module if it has been dropped or sus-
tained an impact.
• Do not allow oil, grease or water to come in contact with the
air bag module.
INSTALLATION
Installation is in the reverse order of removal.
• If driver air bag module is being replaced due to deployment, spiral cable must also be replaced. Refer toSR-7, "
Removal and Installation".
• For removal/installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS Compo-
nent Connectors".
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to SRC-
13, "SRS Operation Check".
SBF814E
Revision: March 2010 2008 QX56

SPIRAL CABLESR-7
< ON-VEHICLE REPAIR >
C
DE
F
G
I
J
K L
M A
B
SR
N
O P
SPIRAL CABLE
Removal and InstallationINFOID:0000000004894348
REMOVAL
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Remove the steering wheel. Refer to ST-18, "
Removal and Installation".
2. Remove the column cover upper and lower.
3. Remove wiper washer switch connector, then pinch the tabs at wiper and washer switch base and slide switch away from steer-
ing column to remove.
1. Steering wheel 2. Lighting and turn signal switch 3. Wiper and washer switch
4. Spiral cable 5. Driver air bag module connector 6. Column cover upper
7. Column assembly 8. Column cover lower9. Screw (Do not remove)
10. Screw A. Refer to ST-18, "
Removal and Instal-
lation"
AWHIA0141GB
LHIA0034E
Revision: March 2010 2008 QX56

SR-8
< ON-VEHICLE REPAIR >
SPIRAL CABLE
4. While pressing tabs, pull lighting and turn signal switch towarddriver door and disconnect from base.
5. Remove the screws, release the clip, and remove the spiral cable.
CAUTION:
• Do not disassemble spiral cable.
• Do not apply lubricant to the spiral cable.
6. Remove the spiral cable connectors. CAUTION:
With the steering linkage di sconnected, the spiral cable
may snap by turning the steer ing wheel beyond the limited
number of turns. The spiral cable can be turned counter-
clockwise about 2.5 turns fr om the neutral position.
7. Remove steering angle sensor.
INSTALLATION
Installation is in the reverse order of removal.
• Align spiral cable correctly when installing steering wheel. Make sure that the spiral cable is in the neutral position. The neutral
position is detected by turning left 2.5 revolutions from the right
end position and ending with the knob at the top.
• Refer to BRC-8, "
ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION : Special Repair Requirement" for
steering angle sensor adjustment.
• After the work is completed, perform self-diagnosis to make sure no malfunction is detected. Refer to SRC-13, "
SRS Operation
Check".
CAUTION:
LHIA0035E
LHIA0036E
SHIA0193E
WGIA0038E
Revision: March 2010 2008 QX56

SPIRAL CABLESR-9
< ON-VEHICLE REPAIR >
C
DE
F
G
I
J
K L
M A
B
SR
N
O P
• The spiral cable may snap du e to steering operation if the
cable is not installed in the correct position.
• With the steering linkage disconnected, the cable may snap
by turning the steering wheel beyond the limited number of
turns. The spiral cable can be turned counterclockwise about
2.5 turns from the neutral position.
PHIA0275E
Revision: March 2010 2008 QX56

SR-10
< ON-VEHICLE REPAIR >
FRONT PASSENGER AIR BAG MODULE
FRONT PASSENGER AIR BAG MODULE
Removal and InstallationINFOID:0000000001602203
The passenger air bag module originally installed in the vehicle uses direct-connect style harness connectors.
Service replacement passenger air bag modules use tab-locking style harness connectors. If the passenger
air bag module is replaced or if the direct-connect harness connectors are damaged, the vehicle wiring har-
ness must be modified to allow connection of the se rvice replacement passenger air bag module. Refer to
"Service Replacement Passenger Air Bag Module" within the INSTALLATION procedure in this section for wir-
ing harness modifiation procedure.
REMOVAL
CAUTION:
• Do not attempt to repair or replace damaged di rect-connect front passenger air bag module connec-
tors. If a direct-connect harness connector is damaged, the front passenger air bag must be
replaced and the wiri ng harness modified.
• Before servicing SRS, turn the ignition switch off, disco nnect both battery cables and wait at least
three minutes.
• Always work from the side of or under front passenger air bag module.
1. Remove the glove box. Refer to IP-17, "
Exploded View".
2. Remove two nuts (through glove box opening) retaining front passenger air bag module to instrument panel crossmember.
3. Disconnect the air bag module electrical connectors. • For removal/installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS
Component Connectors".
4. Remove the instrument panel assembly from the vehicle. Refer to IP-12, "
Removal and Installation".
5. Remove front passenger air bag module nuts and remove air bag module from the instrument panel assembly.
CAUTION:
• When servicing the SRS, do not work from directly in front of
air bag module.
• Always place front passenger air bag module with caution label side facing upward.
• Do not insert any foreign object s (screwdriver, etc.) into air
bag module or harness connectors.
• Do not disassemble air bag module.
• Do not use old nuts after removal; replace with new nuts.
• Do not expose the front passenger air bag module to tempera- tures exceeding 90 °C (194 °F).
WHIA0110E
WHIA0111E
Revision: March 2010 2008 QX56

FRONT PASSENGER AIR BAG MODULESR-11
< ON-VEHICLE REPAIR >
C
DE
F
G
I
J
K L
M A
B
SR
N
O P
• Replace the air bag module if it has been dropped or sus-
tained an impact.
• Do not allow oil, grease or water to come in contact with the
air bag module.
• For removal/installation of the direct-connect SRS connec- tors, refer to SRC-9, "
Direct-connect SRS Component Con-
nectors".
INSTALLATION
Original Passenger Air Bag Module
Installation is in the reverse order of removal.
• For removal and installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS
Component Connectors".
CAUTION:
• Always work from the side of or under front passenger air bag module.
• After the work is completed, perform self-diagnosi s to check that no malfunction is detected. Refer
to SRC-13, "
SRS Operation Check".
Service Replacement Passenger Air Bag Module
1. Install the front passenger air bag module to the instrument
panel pad assembly.
2. Install the instrument panel assembly. Refer to IP-12, "
Removal and Installation".
3. Connect the front passenger air bag module harness connector to yellow 4-pin service replacement air bag connector and fasten connector to mounting bracket.
CAUTION:
• Always work from the side of or under front passenger air bag module.
• After the work is completed, perform self-diagnosi s to check that no malfunction is detected. Refer
to SRC-13, "
SRS Operation Check".
WIRING HARNESS MODIFICATION
The passenger air bag module originally installed in t he vehicle uses direct-connect style harness connectors.
Service replacement passenger air bag modules use t ab-locking style harness connectors. If the passenger
air bag module is replaced or if the direct-connect harness connectors are damaged, the vehicle wiring har-
ness must be modified to allow connection of t he service replacement passenger air bag module.
NOTE:
The wiring harness modification is to be performed only if the vehicle is equipped with the original passenger
air bag which uses direct-connect harness connectors. If the passenger air bag is to be replaced in a vehicle
that has already had the service replacement passenger air bag installed, the wiring harness modification is
not required.
CAUTION:
• Do not attempt to repair or replace damaged dir ect-connect front passenger air bag module connec-
tors. If a direct-connect harness connector is damaged, the front passenger air bag must be
replaced and the wiri ng harness modified.
• Before servicing SRS, turn the igni tion switch off, disconnect both battery cables and wait at least 3
minutes.
SBF814E
WHIA0110E
Revision: March 2010 2008 QX56

SR-12
< ON-VEHICLE REPAIR >
FRONT PASSENGER AIR BAG MODULE
• Always work from the side of or under front passenger air bag module.
• After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer
to SRC-13, "
SRS Operation Check".
1. Locate the yellow and orange direct-connect passenger air bag module harness connectors.
2. Use wire cutters to cut back both previously used direct-connect passenger air bag module harness con-
nectors from the vehicle wiring harness approximately 50 mm (1.9 in) from the connectors.
3. Remove approximately 150 mm (5.9 in) of the vehicle harness covering from the cut end.
4. Slide a piece of dual-wall heat shrink tubing (provided in the pas- senger air bag service kit) onto each wire of the previously used
vehicle wiring harness.
5. Fold each wire back and insert into the end of the heat shrink tubing so that the end of the wire is approximately centered in
the heat shrink tubing.
6. Use a heat gun to shrink the heat shrink tubing and seal the wire.
7. Use electrical tape to secure the modified circuits to the outside of the wiring harness.
8. Locate the front passenger air bag service replacement connec- tor that is taped back to the main harness. Unwrap the tape to
access the yellow service replacement connector and remove
the dust cover from the connector.
LHIA0017E
WHIA0062E
WHIA0118E
Revision: March 2010 2008 QX56

SIDE CURTAIN AIR BAG MODULESR-13
< ON-VEHICLE REPAIR >
C
DE
F
G
I
J
K L
M A
B
SR
N
O P
SIDE CURTAIN AIR BAG MODULE
Removal and InstallationINFOID:0000000001602204
REMOVAL
CAUTION:
• Do not attempt to repair or replace damaged direct-connect SRS component connectors. If a direct- connect harness connector is damage d, the harness must be replaced.
• Before servicing the SRS, turn the ignition switch off, disconnect both battery cables and wait at least 3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
• Do not insert any foreign objects (screwdriver, etc.) into air bag module or harness connectors.
• Do not disassemble air bag module.
• Do not expose the air bag modu le to temperatures exceeding 90°C (194 °F).
• Replace side curtain air bag modu le if it has been dropped or
sustained an impact.
• Do not allow oil, grease or water to come in contact with the
air bag module.
1. Remove headlining. Refer to INT-17, "
Removal and Installation".
2. Disconnect front and rear side curtain air bag module connec- tors.
• For removal/installation of the direct-connect SRS connectors,refer to SRC-9, "
Direct-connect SRS Component Connectors".
3. Remove the bolts in order starting at the front or rear, and remove the side curtain air bag module.
INSTALLATION
Installation is in the reverse order of removal.
• For removal/installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS Compo-
nent Connectors".
• After replacement of side curtain air bag module, per form self-diagnosis to check that no malfunction is
detected. Refer to SRC-13, "
SRS Operation Check".
1. Rear side curtain air bag module
connector 2. Front side curtain air bag module
connector ⇐
Vehicle front
WHIA0294E
SBF814E
Revision: March 2010 2008 QX56

SR-14
< ON-VEHICLE REPAIR >
CRASH ZONE SENSOR
CRASH ZONE SENSOR
Removal and InstallationINFOID:0000000001602205
REMOVAL
CAUTION:
• Before servicing the SRS, turn the ignition switch off, disconnect both battery cables and wait at
least 3 minutes.
• Replace crash zone sensor if it has been dropped or sustained an impact.
• Do not disassemble crash zone sensor.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Remove front grille. Refer to EXT-17, "
Removal and Installation".
3. Disconnect the crash zone sensor harness connector.
4. Remove crash zone sensor nuts.
INSTALLATION
Installation is in the reverse order of removal.
• After the work is complete, perform self-diagnosis to check that no malfunction is detected. Refer to SRC-13,
"SRS Operation Check".
LHIA0056E
Revision: March 2010 2008 QX56