engine INFINITI QX4 2001 Factory Service Manual

SBR665E
CONSULT-II Inspection Procedure=NBBR0097SELF-DIAGNOSIS PROCEDURENBBR0097S011. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
3. Start engine.
4. Drive vehicle over 30 km/h (19 MPH) for at least one minute.
PBR455D
5. Stop vehicle with engine running and touch ªSTARTº on CON-
SULT-II screen.
SBR670E
6. Touch ªABSº.
SBR636E
7. Touch ªSELF-DIAG RESULTSº.
IThe screen shows the detected malfunction and how many
times the ignition switch has been turned ON since the mal-
function.
8. Make the necessary repairs following the diagnostic proce-
dures.
PBR950C
9. After the malfunctions are repaired, erase the self-diagnostic
results stored in the control unit by touching ªERASEº.
10. Check warning lamp for deactivation after driving vehicle over
30 km/h (19 MPH) for at least one minute.
11. Test the ABS in a safe area to verify that it functions properly.
NOTE:
ªSELF-DIAG RESULTSº screen shows the detected malfunction
and how many times the ignition switch has been turned since the
malfunction.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure
BR-44

PBR455D
ACTIVE TEST PROCEDURE=NBBR0097S04IWhen conducting Active test, vehicle must be stationary.
IWhen ABS warning lamp stays on, never conduct Active test.
1. Turn ignition switch OFF.
2. Connect CONSULT-II to data link connector.
3. Start engine.
4. Touch ªSTARTº on CONSULT-II screen.
SBR670E
5. Touch ªABSº.
SBR636E
6. Touch ªACTIVE TESTº.
SBR671E
7. Select active test item by touching screen.
SBR639E
8. Touch ªSTARTº.
9. Carry out the active test by touching screen key.
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-47

DATA MONITOR MODENBBR0097S05
MONITOR ITEM CONDITION SPECIFICATION
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSORDrive vehicle.
(Each wheel is rotating.)Wheel speed signal
(Almost the same speed as speedometer.)
STOP LAMP SW Brake is depressed.Depress the pedal: ON
Release the pedal: OFF
G-SWITCHHVehicle is driven.
Vehicle is stopped.
Brake is applied.During sudden braking while driving on high  roads (asphalt
roads, etc.): OFF
While vehicle is stopped or during constant-speed driving: ON
FR RH IN SOL
FR RH OUT SOL
FR LH IN SOL
FR LH OUT SOL
RR IN SOL
RR OUT SOL1. Drive vehicle at speeds
over 30 km/h (19 MPH) for at
least 1 minute.
2. Engine is running.Operating conditions for each solenoid valve are indicated. ABS
is not operating: OFF
MOTOR RELAYABS is not operating: OFF
ABS is operating: ON
ACTUATOR RELAY
Ignition switch is ON or
engine is running.Ignition switch ON (Engine stops): OFF
Engine running: ON
WARNING LAMPABS warning lamp is turned on: ON
ABS warning lamp is turned off: OFF
BATTERY VOLT Power supply voltage for control unit
ABS OPER SIGABS is not operating: OFF
ABS is operating: ON
H: 4WD model only
ACTIVE TEST MODENBBR0097S06
TEST ITEM CONDITION JUDGEMENT
FR RH SOLENOID
FR LH SOLENOID
RR SOLENOID
Engine is running.Brake fluid pressure control operation
IN SOL OUT SOL
UP (Increase): OFF OFF
KEEP (Hold): ON OFF
DOWN (Decrease): ON ON
ABS MOTORABS actuator motor
ON: Motor runs (ABS motor relay ON)
OFF: Motor stops (ABS motor relay OFF)
ABS OPER SIGIgnition switch is ON or
engine is running.ON: Set ABS OPER SIG ªONº (ABS is operating.)
OFF: Set ABS OPER SIG ªOFFº (ABS is not operating.)
G SWITCHHIgnition switch is ON.G SWITCH (G SENSOR)
ON: Set G SWITCH MONITOR ªONº (G switch circuit is
closed.)
OFF: Set G SWITCH MONITOR ªOFFº (G switch circuit is
open.)
H: 4WD models only
NOTE:
Active test will automatically stop ten seconds after the test starts. (TEST IS STOPPED monitor shows ON.)
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONABS
CONSULT-II Inspection Procedure (Cont'd)
BR-48

6 RECHECK BRAKE FLUID LEVEL
Check brake fluid level in reservoir tank again.
SBR451D
Is brake fluid filled between MAX and MIN lines on reservoir tank?
Ye s©GO TO 7.
No©Fill up brake fluid.
7 CHECK WARNING LAMP ACTIVATION
Check warning lamp activation.
SBR672E
Does warning lamp turn on when ignition switch is turned ON?
Ye s©GO TO 8.
No©Check fuse, warning lamp bulb and warning lamp circuit.
8 CHECK WARNING LAMP DEACTIVATION
Check warning lamp for deactivation after engine is started.
Does warning lamp turn off when engine is started?
Ye s©GO TO 9.
No©Go to Self-diagnosis (BR-41, 44).
9 DRIVE VEHICLE
Drive vehicle at speeds over 30 km/h (19 MPH) for at least one minute.
Does warning lamp remain off after vehicle has been driven at 30 km/h (19 MPH) for at least one minute?
Ye s©INSPECTION END
No©Go to Self-diagnosis (BR-41, 44).
TROUBLE DIAGNOSIS Ð BASIC INSPECTIONABS
Preliminary Check (Cont'd)
BR-52

2 CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom appear only when engine is started?
Ye s©Carry out self-diagnosis. Refer to BR-41, 44.
No©Go to ª3. CHECK WARNING LAMP INDICATIONº in ª2. Unexpected Pedal Actionº,
BR-70.
NOTE:
ABS may operate and cause vibration under any of the following
conditions.
IApplying brake gradually when shifting or operating clutch.
ILow friction (slippery) road.
IHigh speed cornering.
IDriving over bumps and pot holes.
IEngine speed is over 5,000 rpm with vehicle stopped.
6. Warning Lamp Does Not Come On When
Ignition Switch Is Turned On
NBBR0112
1 INSPECTION START
Warning lamp circuit inspection
SBR673E
©GO TO 2.
2 CHECK FUSE
Check 10A fuse No. 8. For fuse layout, refer to EL-16, ªPOWER SUPPLY ROUTINGº.
Is fuse OK?
Ye s©GO TO 3.
No©Replace fuse.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
5. Pedal Vibration and Noise (Cont'd)
BR-72

General SpecificationsNBBR0118Unit: mm (in)
Applied model2WD 4WD
Front brakeBrake model AD31VC
Cylinder bore diameter´number of pistons 44.45 (1.7500)´2
Pad
Length´width´thickness132.0´52.5´11
(5.20´2.067´0.43)
Rotor outer diameter´thickness 300´28 (11.81´1.10)
Rear brakeBrake model LT30C
Cylinder bore diameter 22.23 (7/8)
Lining length´width´thickness296´50´6.1
(11.65´1.97´0.240)
Drum inner diameter 295.0 (11.61)
Master cylinder Bore diameter 25.40 (1)
Control valveValve modelProportioning valve
within master cylinderLinkage type load
sensing valve
Split point
kPa (kg/cm
2, psi)´reducing ratio2,942 (30, 427)´0.2 (Variable)´0.18
Brake boosterBooster model M235T
Diaphragm diameterPri: 252 (9.92)
Sec: 205 (8.07)
Recommended brake fluidDOT 3
Disc BrakeNBBR0119Unit: mm (in)
Brake modelAD31VC
Pad wear limit Minimum thickness 2.0 (0.079)
Rotor repair limit Minimum thickness 26.0 (1.024)
Drum BrakeNBBR0120Unit: mm (in)
Brake modelLT30C
Lining wear limit Minimum thickness 1.5 (0.059)
Drum repair limitMaximum inner diameter 296.5 (11.67)
Out-of-round limit 0.03 (0.0012)
Brake PedalNBBR0121Unit: mm (in)
TransmissionA/T
Free height ªHº*175 - 185
(6.89 - 7.28)
Depressed height ªDº*
[under force of 490 N (50 kg, 110 lb) with engine running]70 (2.76)
Clearance ªCº between pedal stopper and threaded end of stop lamp switch or ASCD switch 0.3 - 1.0 (0.012 - 0.039)
Pedal free playAt clevis 1.0 - 3.0 (0.039 - 0.118)
At pedal pad1 - 3 (0.04 - 0.12)
*: Measured from surface of metal panel to pedal pad
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SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
BR-83

BODY & TRIM
SECTION
BT
CONTENTS
PRECAUTIONS...............................................................2
Service Notice..............................................................2
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............2
PREPARATION...............................................................3
Special Service Tools ..................................................3
Commercial Service Tools ...........................................3
SQUEAK AND RATTLE TROUBLE DIAGNOSES.........4
Work Flow ....................................................................4
CUSTOMER INTERVIEW...........................................4
DUPLICATE THE NOISE AND TEST DRIVE................5
CHECK RELATED SERVICE BULLETINS...................5
LOCATE THE NOISE AND IDENTIFY THE ROOT
CAUSE
.....................................................................5
REPAIR THE CAUSE.................................................5
CONFIRM THE REPAIR.............................................6
Generic Squeak and Rattle Troubleshooting ..............6
INSTRUMENT PANEL................................................6
CENTER CONSOLE..................................................6
DOORS.....................................................................6
TRUNK.....................................................................7
SUNROOF/HEADLINER.............................................7
SEATS......................................................................7
UNDERHOOD...........................................................7
Diagnostic Worksheet ..................................................8
CLIP AND FASTENER..................................................10
Description .................................................................10
BODY FRONT END.......................................................12
Removal and Installation ...........................................12
FRONT BUMPER ASSEMBLY..................................12
BODY REAR END AND OPENER................................15
Removal and Installation ...........................................15
REAR BUMPER ASSEMBLY....................................15
FRONT DOOR...............................................................18
Overhaul ....................................................................18
Front Door Limit Switch Reset ..................................19
RESET CONDITIONS..............................................19
RESET PROCEDURES............................................19
REAR DOOR.................................................................20
Overhaul ....................................................................20INSTRUMENT PANEL ASSEMBLY.............................21
Removal and Installation ...........................................21
SIDE AND FLOOR TRIM...............................................28
Removal and Installation ...........................................28
DOOR TRIM...................................................................30
Removal and Installation ...........................................30
ROOF TRIM...................................................................32
Removal and Installation ...........................................32
BACK DOOR TRIM.......................................................34
Removal and Installation ...........................................34
EXTERIOR.....................................................................35
Removal and Installation ...........................................35
FRONT SEAT................................................................41
Removal and Installation ...........................................41
HEATED SEAT........................................................43
REAR SEAT...................................................................44
Removal and Installation ...........................................44
SUNROOF......................................................................45
Adjustment .................................................................45
Removal and Installation ...........................................45
Trouble Diagnoses.....................................................49
DIAGNOSTIC TABLE................................................49
WIND DEFLECTOR.................................................49
ADJUSTMENT.........................................................50
DRAIN HOSES........................................................51
WEATHERSTRIP.....................................................51
LINK AND WIRE ASSEMBLY....................................52
WINDSHIELD AND WINDOWS....................................53
Removal and Installation ...........................................53
REMOVAL...............................................................53
INSTALLATION........................................................53
WINDSHIELD..........................................................54
REAR SIDE WINDOW..............................................55
DOOR MIRROR.............................................................56
Removal and Installation ...........................................56
BODY (ALIGNMENT)....................................................57
Alignment ...................................................................57
ENGINE COMPARTMENT........................................58
UNDERBODY..........................................................60
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Special Service ToolsNBBT0022The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool nameDescription
Ð
(J-39570)
Chassis ear
SBT839
Locating the noise
Ð
(J-43980)
Nissan Squeak and Rattle
kit
SBT840
Repairing the cause of noise
Commercial Service ToolsNBBT0023
Tool name Description
Engine ear
SBT841
Locating the noise
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PREPARATION
Special Service Tools
BT-3

DUPLICATE THE NOISE AND TEST DRIVENBBT0024S02If possible, drive the vehicle with the customer until the noise is duplicated. Note any additional information on
the Diagnostic Worksheet regarding the conditions or location of the noise. This information can be used to
duplicate the same conditions when you confirm the repair.
If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle ªtwistº.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
IDrive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
IIf it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINSNBBT0024S03After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSENBBT0024S041. Narrow down the noise to a general area. To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear: J-39565 and mechanics stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
Iremoving the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fastener can
be broken or lost during the repair, resulting in the creation of new noise.
Itapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated
only temporarily.
Ifeeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.
Iplacing a piece of paper between components that you suspect are causing the noise.
Ilooking for loose components and contact marks.
Refer to ªGeneric Squeak and Rattle Troubleshootingº, BT-6.
REPAIR THE CAUSENBBT0024S05IIf the cause is a loose component, tighten the component securely.
IIf the cause is insufficient clearance between components:
þ separate components by repositioning or loosening and retightening the component, if possible.
þ insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or ure-
thane tape. A Nissan Squeak and Rattle Kit (J-43980) is available through your authorized Nissan Parts
Department.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the Nissan Squeak and Rattle Kit (J-43980). Each item can be ordered
separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100 x 135 mm (3.94 x 5.31 in)/76884-71L01: 60 x 85 mm (2.36 x 3.35 in)/76884-71L02: 15 x
25 mm (0.59 x 0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50 x 50 mm (1.97 x 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50 x
50 mm (1.97 x 1.97 in)
INSULATOR (Light foam block)
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SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work Flow (Cont'd)
BT-5

TRUNK=NBBT0025S04Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINERNBBT0025S05Noises in the sunroof/headliner area can often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headliner and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATSNBBT0025S06When isolating seat noises it's important to note the position the seat is in and the load placed on the seat
when the noise is present. These conditions should be duplicated when verifying and isolating the cause of
the noise.
Cause of seat noise include:
1. Headrest rods and holders
2. A squeak between the seat pad cushion and frame
3. The rear seat back lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs. Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOODNBBT0025S07Some interior noises may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noises include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
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SQUEAK AND RATTLE TROUBLE DIAGNOSES
Generic Squeak and Rattle Troubleshooting (Cont'd)
BT-7