2001 INFINITI QX4 light

SPD322
5. Apply gear oil to gear tooth surfaces and thrust surfaces and
check to see they turn properly.
6. Install differential case assembly on ring gear.
Tighten bolts in a criss-cross pattern, lightly tapping bolt head
with a hammer.
PD244
7. Press-fit side bearing inner cones on differential case with Tool.
Tool number:
A ST33190000 (J25523)
B ST33081000 ( Ð )
SPD580
DIFFERENTIAL CARRIERNBPD0041S021. Press-fit front and rear bearing outer races with Tools.
Tool number:
A ST30611000 (J25742-1)
B ST30621000 (J25742-5)
C ST30613000 (J25742-3)
SPD377
2. Select drive pinion height adjusting washer. Refer to
ªAdjustmentº, PD-53.
3. Install drive pinion adjusting washer in drive pinion, and press-
fit pinion rear bearing inner cone in it, with press and Tool.
Tool number:
ST30901000 (J26010-01)
REAR FINAL DRIVEH233B
Assembly (Cont'd)
PD-58

SPD149
SPD684
9. Turn drive pinion in both directions several times, and measure
pinion bearing preload.
Tool number: ST3127S000 (J25765-A)
Pinion bearing preload (Without front oil seal):
1.2 - 2.0 N´m (12 - 20 kg-cm, 10 - 17 in-lb)
If preload is out of specification, adjust the thickness of spacer and
shim combination by replacing shim and spacer with thinner one.
IStart from the combination of thickest spacer and shim.
ICombine each spacer and shim thickness one by one until the
correct specification are achieved.
Drive pinion bearing preload adjusting spacer and
shim:
Refer to SDS, PD-64.
10. Install differential case assembly with side bearing outer races
into gear carrier.
11. Position side bearing adjusters on gear carrier with threads
properly engaged; screw in adjusters lightly at this stage of
assembly.
Tool number: ST32580000 (J34312)
SPD265
12. Align mark on bearing cap with that on gear carrier and install
bearing cap on gear carrier.
IDo not tighten at this point to allow further tightening of side
bearing adjusters.
SPD246
13. Tighten both right and left side bearing adjusters alternately
and measure ring gear backlash and total preload at the same
time. Adjust right and left side bearing adjusters by tightening
them alternately so that proper ring gear backlash and total
preload can be obtained.
Ring gear-to-drive pinion backlash:
0.13 - 0.18 mm (0.0051 - 0.0071 in)
SPD149
IWhen checking preload, turn drive pinion in both direc-
tions several times to set bearing rollers.
Tool number: ST3127S000 (J25765-A)
Total preload:
P
1+ [0.3 - 0.4 N´m (3 - 4 kg-cm, 2.6 - 3.5 in-lb)]
P
1: Drive pinion preload
REAR FINAL DRIVEH233B
Assembly (Cont'd)
PD-60

IWhen deploying the air bag module and seat belt pre-
tensioner, stand at least 5 m (16 ft) away from the deployment
component.
IWhen deploying air bag module and seat belt pre-tensioner, a
fairly loud noise is made, followed by smoke being released.
The smoke is not poisonous, however, be careful not to inhale
smoke since it irritates the throat and can cause choking.
IAlways activate one air bag module at a time.
IDue to heat, leave air bag module unattended for more than
30 minutes after deployment. Also leave seat belt pre-ten-
sioner unattended for move than 10 minutes after deployment.
IBe sure to wear gloves when handling a deployed air bag
module and seat belt pre-tensioner.
INever apply water to the deployed air bag module and seat
belt pre-tensioner.
IWash your hands clean after finishing work.
IPlace the vehicle outdoors with an open space of at least 6 m
(20 ft) on all sides when deploying air bag module and seat belt
pre-tensioner while mounted in vehicle.
IUse a voltmeter to make sure the vehicle battery is fully
charged.
IDo not dispose of the air bag module and seat belt pre-ten-
sioner un-deployed.
SRS019
CHECKING DEPLOYMENT TOOLNBRS0018S01Connecting to BatteryNBRS0018S0101CAUTION:
The battery must show voltage of 9.6V or more.
Remove the battery from the vehicle and place it on dry wood
blocks approximately 5 m (16 ft) away from the vehicle.
IWait 3 minutes after the vehicle battery is disconnected before
proceeding.
IConnect red clip of deployment tool to battery positive termi-
nal and black clip to negative terminal.
Make sure the polarity is correct. The right side lamp in the
tool, marked ªdeployment tool powerº, should glow with a
green light. If the right side lamp glows red, reverse the con-
nections to the battery.
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SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Disposal of Air Bag Module and Seat Belt Pre-tensioner (Cont'd)
RS-23

HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II=NBRS0040S03From User Mode to Diagnosis ModeNBRS0040S0301After selecting ªAIR BAGº on the ªSELECT SYSTEMº screen, User mode automatically changes to Diagno-
sis mode.
SRS803
From Diagnosis Mode to User ModeNBRS0040S0302To return to User mode from Diagnosis mode, touch ªBACKº key of CONSULT-II until ªSELECT SYSTEMº
appears, Diagnosis mode automatically changes to User mode.
SRS804
HOW TO CHANGE SELF-DIAGNOSIS MODE WITHOUT CONSULT-IINBRS0040S04From User Mode to Diagnosis ModeNBRS0040S0401Diagnosis mode activates only when a malfunction is detected, by turning ignition switch as follows:
1) Turn ignition switch ªONº.
2) After ªAIR BAGº warning lamp lights for 7 seconds, turn ignition switch ªOFFº within 1 second.
3) Wait more than 3 seconds.
4) Repeat steps 1 to 3 three times.
5) Turn ignition switch ªONº.
SRS will not enter Diagnosis mode, if no malfunction is detected.
From Diagnosis Mode to User ModeNBRS0040S0402After a malfunction is repaired, switch the ignition ªOFFº for at least one second, then back ªONº. Diagnosis
mode is returned to User mode.
If switching Diagnosis mode to User mode is required while malfunction is being detected, by turning ignition
switch as follows:
1) Turn ignition switch ªONº.
2) After ªAIR BAGº warning lamp lights for 7 seconds, turn ignition switch ªOFFº within 1 second.
3) Wait more than 3 seconds.
4) Repeat steps 1 to 3 three times.
5) Turn ignition switch ªONº.
HOW TO ERASE SELF-DIAGNOSIS RESULTSNBRS0040S05With CONSULT-IINBRS0040S0501IªSELF-DIAG [CURRENT]º
A current Self-diagnosis result is displayed on the CONSULT-II screen in real time.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Trouble Diagnoses Introduction (Cont'd)
RS-30

Diagnostic item Explanation Repair order
CONTROL UNITIDiagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check is OK, replace
the diagnosis sensor unit.
* Follow the procedures in numerical order when repairing malfunctioning parts, then make the final system check.
SRS800
Trouble Diagnoses without CONSULT-IINBRS0046DIAGNOSTIC PROCEDURE 6NBRS0046S01Inspecting SRS malfunctioning parts by using ªAIR BAGº
warning lamp Ð Diagnosis mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is
detected in User mode.
1. Turn ignition switch ªONº.
2. After ªAIR BAGº warning lamp lights for 7 seconds, turn igni-
tion switch ªOFFº within 1 second.
3. Wait more than 3 seconds.
4. Repeat steps 1 to 3 three times.
5. Turn ignition switch ªONº.
SRS is now in Diagnosis mode.
6. ªAIR BAGº warning lamp operates in Diagnosis mode as fol-
lows:
NOTE:
If SRS does not enter Diagnosis mode even though malfunction is
detected in User mode, check the battery voltage.
If the battery voltage is less than 9V, charge the battery. Then go
to DIAGNOSTIC PROCEDURE 7, page RS-53.
If the battery voltage is OK, replace the diagnosis sensor unit.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Trouble Diagnoses with CONSULT-II (Cont'd)
RS-48

No. ªAIR BAGº warning lamp flash pattern Ð Diagnosis mode Ð SRS condition
1
SRS333
athroughbare repeated. No malfunction
is detected or
repair is com-
pleted.
No further
action is nec-
essary.
2
SRS341
athroughdare repeated.
bÐ Driver and passenger air
bag and seat belt pre-tensioner
marker (For identifying driver
air bag, passenger air bag
and/or seat belt pre-tensioners
malfunctioning)
dÐ Indicates malfunctioning
part. The number of flashes
varies with malfunctioning part
(0.5 sec. ON and 0.5 sec. OFF
is counted as one flash.)The system is
malfunctioning
and needs to
be repaired.
3
SRS342-A
athroughfare repeated.
b,c,dÐ Side air bag marker
(For identifying side air bag
malfunctioning)
fÐ Indicates malfunctioning
part. The number of flashes
varies with malfunctioning part
(0.5 sec. ON and 0.5 sec. OFF
is counted as one flash.)
NOTE:
When diagnosis sensor unit is replaced with new one, ªAIR BAGº
warning lamp will operate in User mode. Checking ªAIR BAGº
warning lamp operation in Diagnosis mode is not required. Go to
step 6.
5. If ªAIR BAGº warning lamp operates as shown in No. 1 in chart
above, turn ignition switch ªOFFº to reset from Diagnosis mode
to User mode and to erase the memory of the malfunction.
Then go to step 6.
If ªAIR BAGº warning lamp operates as shown in No. 2 or No.
3 in chart above, the malfunctioning part is not repaired
completely, or another malfunctioning part is detected. Go to
DIAGNOSTIC PROCEDURE 6, page RS-48, and repair mal-
functioning part completely.
6. Turn ignition switch ªONº. ªAIR BAGº warning lamp operates in
User mode. Compare ªAIR BAGº warning lamp operation to
the chart below.
NOTE:
If switching Diagnosis mode to User mode is required while mal-
function is being detected, by turning ignition switch as follows:
1) Turn ignition switch ªONº.
2) After ªAIR BAGº warning lamp lights for 7 seconds, turn igni-
tion switch ªOFFº within 1 second.
3) Wait more than 3 seconds.
4) Repeat steps 1 to 3 three times.
5) Turn ignition switch ªONº.
SRS is now in User mode.
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Trouble Diagnoses without CONSULT-II (Cont'd)
RS-54

Trouble Diagnoses with
Battery/Starting/Charging System Tester
NBSC0018CAUTION:
When working with batteries, always wear appropriate eye
protection.
NOTE:
ITo ensure a complete and thorough diagnosis, the battery,
starter and alternator test segments must be done as a set
from start to finish.
IIf battery surface charge is detected while testing, the tester
will prompt you to turn on the headlights to remove the surface
charge.
IIf necessary, the tester will prompt you to determine if the bat-
tery temperature is above or below 0ÉC (32ÉF). Choose the
appropriate selection by pressing the up or down arrow button,
then press ªENTERº to make the selection.
SEL404X
1. Turn off all loads on the vehicle electrical system. Clean or
repair as necessary.
2. Visually inspect the battery, battery terminals and cable ends
with ignition switch in ªOFFº position.
NOTE:
The contact surface between the battery terminals, cable ends and
tester leads must be clean for a valid test. A poor connection will
prevent testing and a ªCHECK CONNECTIONº message will
appear during the test procedures. If this occurs, clean the battery
post and terminals, reconnect them and restart the test.
3. Connect the red tester lead clamp to the positive battery
terminal, and the black to the negative terminal.
SEL405X
4. The tester will turn on automatically. Using the arrow keys,
select ªIN VEHICLEº on the tester and then press the ªENTERº
key.
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BATTERY
Trouble Diagnoses with Battery/Starting/Charging System Tester
SC-7

SST601C
Checking Gear Housing MovementNBST00081. Check the movement of steering gear housing during station-
ary steering on a dry paved surface.
IApply a force of 49 N (5 kg, 11 lb) to steering wheel to check
the gear housing movement.
Turn off ignition key while checking.
Movement of gear housing:
±2mm(±0.08 in) or less
2. If movement exceeds the limit, replace mount insulator after
confirming proper installation of gear housing clamps.
SST602C
Adjusting Rack RetainerNBST0009IPerform this driving test on a flat road.
a) Check whether vehicle moves in a straight line when steering
wheel is released.
b) Check whether steering wheel returns to neutral position when
steering wheel is released from a slightly turned (approx. 20É)
position.
IIf any abnormality is found, correct it by resetting adjusting
screw.
Checking and Adjusting Drive BeltsNBST0010Refer to MA-13, ªChecking Drive Beltsº.
SST280BA
Checking Fluid LevelNBST0011Check fluid level.
Use the correct range of the dipstick depending on the fluid tem-
perature. Use the ªHOTº range at 50 to 80ÉC (122 to 176ÉF), or the
ªCOLDº range at 0 to 30ÉC (32 to 86ÉF).
CAUTION:
IDo not overfill.
IRecommended fluid is Genuine Nissan PSF II or equiva-
lent. Refer to MA-11, ªFluids and Lubricantsº.
SST458C
Checking Fluid LeakageNBST0012Check the lines for improper attachment and for leaks, cracks,
damage, loose connections, chafing and deterioration.
1. Run engine between idle speed and 1,000 rpm.
Make sure temperature of fluid in oil tank rises to 60 to 80ÉC
(140 to 176ÉF).
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each ªlockº position for five seconds
and carefully check for fluid leakage.
ON-VEHICLE SERVICE
Checking Gear Housing Movement
ST-8