2004 INFINITI QX56 steering wheel

SRS-48
SPIRAL CABLE
Revision: August 20072004 QX56
6. 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.
7. While pressing tabs, pull lighting and turn signal switch toward
driver door and disconnect from base.
8. 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.
9. Remove the spiral cable connectors.
CAUTION:
With the steering linkage disconnected, the spiral 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.
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 2.6 revolutions from the right
end position and ending with the knob at the top.

If equipped with VDC, refer to BRC-62, "Adjustment of Steering
Angle Sensor Neutral Position" for steering angle sensor
adjustment.

After the work is completed, perform self-diagnosis to make sure
no malfunction is detected. Refer to SRS-20, "
SRS Operation
Check" .
LHIA0034E
LHIA0035E
LHIA0036E
WGIA0038E

SPIRAL CABLE
SRS-49
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SRS
Revision: August 20072004 QX56
CAUTION:

The spiral cable may snap due 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
Steering wheel center nut : Refer to PS-10, "STEERING COLUMN"

SRS-60
COLLISION DIAGNOSIS
Revision: August 20072004 QX56
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionEHS000WW
Check the SRS components using the following table.

After the work is completed, perform self-diagnosis to check that no malfunction is detected. Refer to
SRS-20, "
SRS Operation Check" .
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Air bag module
(driver and front pas-
senger air bag mod-
ule)REPLACE
Install with new fas-
teners.1. Remove air bag module. Check harness cover and connectors for damage, termi-
nals for deformities, and harness for binding.
2. Install driver air bag module into the steering wheel to check fit and alignment with
the wheel.
3. Install passenger air bag module into the instrument panel to check fit with the
instrument panel.
4. If no damage is found, reinstall with new fasteners.
5. If damaged—REPLACE. Install air bag modules with new fasteners.
Crash zone sensor REPLACE the crash
zone sensor and
bracket with new fas-
teners.1. Remove the crash zone sensor. Check harness connectors for damage, terminals
for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone
sensor and bracket.
3. Install the crash zone sensor to check fit.
4. If no damage is found, reinstall with new fasteners.
5. If damaged—REPLACE the crash zone sensor and bracket with new fasteners.
Seat belt pre-ten-
sioner assemblies
and seat belt buckle
pre-tensioner assem-
bliesREPLACE
Install seat belt pre-
tensioner and seat
belt buckle pre-ten-
sioner assemblies
with new fasteners.1. Remove seat belt pre-tensioners and seat belt buckle pre-tensioner assemblies.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. If no damage is found, reinstall seat belt pre-tensioner assembly.
6. If damaged—REPLACE. Install the seat belt pre-tensioners or seat belt buckle pre-
tensioner assemblies with new fasteners.
Diagnosis sensor unit REPLACE
Install with new fas-
teners.1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new fasteners.
4. If damaged—REPLACE. Install diagnosis sensor unit with new fasteners.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install driver air bag module into the steering wheel to check fit and alignment with the wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall.
6. If damaged—REPLACE.
Spiral cable REPLACE the spiral
cable.1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall.
5. If damaged—REPLACE.
Occupant classifica-
tion system (Passen-
ger seat)1. Remove passenger seat.
2. Check control unit case for dents, cracks of deformities.
3. Check connectors and pressure sensor tube for damage, and terminals for deformities.
4. Check seat frame and cushion pan for dents or deformities.
5. If no damage is found, reinstall seat with new fasteners.
6. If damaged — REPLACE seat cushion assembly with new fasteners.

TF-54
TROUBLE DIAGNOSIS — BASIC INSPECTION
Revision: August 20072004 QX56
4. (1) CHECK TIGHT CORNER BRAKING SYMPTOM
1. Set 4WD shift switch to AUTO position.
2. Drive vehicle at speed lower than 20 km/h (12 MPH) with steering wheel fully turned.
3. Does tight corner braking symptom occur?
Ye s o r N o
Yes >> GO TO 5.
No >> GO TO 6.
5. CONFIRM SYMPTOM AGAIN
Confirm symptom and self-diagnosis again.
Refer to TF-27, "
Trouble Diagnosis without CONSULT-II" and TF-31, "Trouble Diagnosis with CONSULT-II" .
OK or NG
OK >> GO TO 6.
NG >> Go to Symptoms 8 and 9. Refer to TF-93, "
Symptom 8. Tight Corner Braking Symptom (Tight Cor-
ner Braking Symptom Occurs-Hydraulic System Failure)" and TF-94, "Symptom 9. 4WD System
Does Not Operate (The Vehicle Cannot Be Put Into 4WD Mode-Hydraulic System Failure)" .
6. (2) CHECK TIGHT CORNER BRAKING SYMPTOM
1. Set 4WD shift switch to 4H position.
2. Drive vehicle at speed lower than 20 km/h (12 MPH) with steering wheel fully turned.
3. Does tight corner braking symptom occur?
Ye s o r N o
Yes >> Inspection End.
No >> GO TO 7.
7. CONFIRM SYMPTOM AGAIN
Confirm symptom and self-diagnosis again.
Refer to TF-27, "
Trouble Diagnosis without CONSULT-II" and TF-31, "Trouble Diagnosis with CONSULT-II" .
OK or NG
OK >> Inspection End.
NG >> Go to Symptoms 8 and 9. Refer to TF-93, "
Symptom 8. Tight Corner Braking Symptom (Tight Cor-
ner Braking Symptom Occurs-Hydraulic System Failure)" and TF-94, "Symptom 9. 4WD System
Does Not Operate (The Vehicle Cannot Be Put Into 4WD Mode-Hydraulic System Failure)" .

TF-92
TROUBLE DIAGNOSES FOR SYMPTOMS
Revision: August 20072004 QX56
Symptom 7. 4WD Shift Indicator Lamp Repeats Flickering (4WD Shift Indicator
Lamp Keeps Flickering)
EDS0018K
1. CHECK 4WD SHIFT INDICATOR LAMP
1. Set 4WD shift switch to 2WD position.
2. Move vehicle forward and backward. Or drive straight increasing
or decreasing speed under 20 km/h (12 MPH).
3. Does 4WD shift indicator lamp keep flickering?
Ye s o r N o
Yes >> GO TO 2.
No >> Inspection End.
2. CHECK TIGHT CORNER BRAKING SYMPTOM
Drive vehicle at speed under 20 km/h (12 MPH), turning steering wheel to the limit. Does tight corner braking
symptom occur?
Ye s o r N o
Yes >> GO TO 3.
No >> GO TO 4.
3. CHECK 4WD SHIFT INDICATOR LAMP
Does the 4WD shift indicator lamp keep flickering when the front wheels are jacked up?
Ye s o r N o
Yes >> Check transfer unit operating system.
No >> Check tires.
4. CHECK 4WD WARNING LAMP
Does 4WD warning lamp flicker? (4WD shift indicator lamp is turned OFF.)
Ye s o r N o
Yes >> Perform self-diagnosis. Refer to TF-27, "Trouble Diagnosis without CONSULT-II" .
No >> GO TO 5.
5. CHECK 4WD SHIFT INDICATOR LAMP
Does 4WD shift indicator lamp keep flickering?
Ye s o r N o
Yes >> Check again.
No >> Inspection End.
WDIA0071E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
WT-3
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WT
Revision: August 20072004 QX56
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEES00122
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
WT-4WT-5WT-33WT-6—
—
WT-33
RFD-5, "
NVH Troubleshooting Chart
" (FFD),
RFD-5, "
NVH Troubleshooting Chart
" (RFD)
FAX -4, "
NVH Troubleshooting Chart
" (FAX),
FSU-4, "
NVH Troubleshooting Chart
" (FSU)
RAX-4, "
NVH Troubleshooting Chart
" (RAX),
RSU-5, "
NVH Troubleshooting Chart
" (RSU)
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED PARTS
Out-of-round
Imbalance
Incorrect tire pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
BRAKE
STEERING
SymptomTIRESNoise× ××××× × × × × ××
Shake××××× × ××× ××
Vibration××××××
Shimmy× ×××××× × × × ××
Shudder××××× × ××× ××
Poor quality ride or
handling××××× × ×××
ROAD
WHEELNoise×× × ××× ×××
Shake×× × ×× ×××
Shimmy, shudder×× × ×× ×××
Poor quality ride or
handling×× × ×× ×

WT-32
REMOVAL AND INSTALLATION
Revision: August 20072004 QX56
3. Place wheel on turntable of tire machine. Ensure that transmitter
is 270 degrees from mounting/dismounting head.
NOTE:
Do not touch transmitter with mounting head.
4. Lubricate tire well, and install second side of tire as normal.
Ensure that tire does not rotate relative to rim.
5. Inflate tire and balance the wheel and tire assembly. Refer to
WT-5
.
6. Install wheel and tire assembly in appropriate wheel position on
vehicle.
NOTE:
If replacing transmitter, transmitter wake up operation must be performed. Refer to WT-15, "
Transmitter
Wake Up Operation" .
7. Adjust neutral position of steering angle sensor. Refer to BRC-62, "
Adjustment of Steering Angle Sensor
Neutral Position" .
SEIA0048E