2005 INFINITI QX4 light

OIL PUMP
LU-13
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Revision: October 20052005 QX56
OIL PUMPPFP:15010
Removal and InstallationEBS00LMW
REMOVAL
1. Remove front cover. Refer to EM-35, "TIMING CHAIN" .
2. Remove the oil pump drive spacer.
3. Remove the oil pump.
INSTALLATION
Installation is in the reverse order of removal, paying attention of the following:

When inserting the oil pump drive spacer, align the crankshaft
key and the flat face of the inner rotor.

If they are not aligned, rotate the oil pump inner rotor by hand.

Make sure that the each part is aligned and tap lightly until it
reaches the end.
WBIA0415E
1. Oil pump body 2. Outer rotor 3. Inner rotor
4. Oil pump cover 5. Oil pump drive spacer 6. Regulator valve
7. Regulator spring 8. Regulator plug
KBIA2512E
KBIA2490E

ENGINE MAINTENANCE
MA-15
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Revision: October 20052005 QX56
4. Install the Tool by installing the radiator cap adapter onto the
radiator neck opening. Then attach the gauge body assembly
with the refill tube and the venturi assembly to the radiator cap
adapter.
5. Insert the refill hose into the coolant mixture container that is
placed at floor level. Make sure the ball valve is in the closed
position.

Use Genuine NISSAN Long Life Anti-freeze coolant or equiv-
alent, mixed 50/50 with distilled water or demineralized water.
Refer to MA-12, "
ANTI-FREEZE COOLANT MIXTURE
RATIO" .
6. Install an air hose to the venturi assembly, the air pressure must
be within specification.
CAUTION:
The compressed air supply must be equipped with an air
dryer.
7. The vacuum gauge will begin to rise and there will be an audible hissing noise. During this process open
the ball valve on the refill hose slightly. Coolant will be visible rising in the refill hose. Once the refill hose is
full of coolant, close the ball valve. This will purge any air trapped in the refill hose.
8. Continue to draw the vacuum until the gauge reaches 28 inches
of vacuum. The gauge may not reach 28 inches in high altitude
locations, refer to the vacuum specifications based on the alti-
tude above sea level.
9. When the vacuum gauge has reached the specified amount, disconnect the air hose and wait 20 seconds
to see if the system loses any vacuum. If the vacuum level drops, perform any necessary repairs to the
system and repeat steps 6 - 8 to bring the vacuum to the specified amount. Recheck for any leaks.
10. Place the coolant container (with the refill hose inserted) at the same level as the top of the radiator. Then
open the ball valve on the refill hose so the coolant will be drawn up to fill the cooling system. The cooling
system is full when the vacuum gauge reads zero.
CAUTION:
Do not allow the coolant container to get too low when filling, to avoid air from being drawn into
the cooling system.
11. Remove the Tool from the radiator neck opening and install the radiator cap.
12. Remove the non-vented reservoir cap.
13. Fill the cooling system reservoir tank to the specified level. Run the engine to warm up the cooling system
and top up the system as necessary before installing the vented reservoir cap.
FLUSHING COOLING SYSTEM
1. Drain the water from the engine cooling system. Refer to MA-13, "DRAINING ENGINE COOLANT" .
2. Fill the radiator and the reservoir tank (to the “MAX” line), with water. Reinstall the radiator cap and leave
the vented reservoir cap off.Tool number : KV991J0070 (J-45695)
Cooling system capacity
(with reservoir tank): Refer to MA-11, "
Flu-
ids and Lubricants" .
Compressed air
supply pressure: 5.7 - 8.5 kPa (5.6 - 8.4 kg/cm
2 ,
80 - 120 psi)
LLIA0058E
Altitude above sea level Vacuum gauge reading
0 - 100 m (328 ft) : 28 inches of vacuum
300 m (984 ft) : 27 inches of vacuum
500 m (1,641 ft) : 26 inches of vacuum
1,000 m (3,281 ft) : 24 - 25 inches of vacuum
LLIA0057E

PG-60
HARNESS
Revision: October 20052005 QX56
Wiring Diagram Codes (Cell Codes)EKS00BNE
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C,A ATC Auto Air Conditioner
A/SUSP RSU Rear Air Suspension
AF1B1 EC Air Fuel Ratio Sensor 1 (Bank 1)
AF1B2 EC Air Fuel Ratio Sensor 1 (Bank 2)
AF1HB1 EC Air Fuel Ratio Sensor 1 (Bank 1)
AF1HB2 EC Air Fuel Ratio Sensor 1 (Bank 2)
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
A/T AT A/T Assembly
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUTO/DP SE Automatic Drive Positioner
AUTO/L LT Auto Light Control
B/CLOS BL Back Door Auto Closure System
BACK/L LT Back-up Lamp
BRK/SW EC Brake Switch
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CLOCK DI Clock
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
COMM AV Audio Visual Communication System
COMPAS DI Compass and Thermometer
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
DVD AV DVD Entertainment System
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
ETC1 EC Electric Throttle Control Function
ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTTS EC Fuel Tank Temperature Sensor
FUELB1 EC Fuel Injection System Bank 1
FUELB2 EC Fuel Injection System Bank 2
H/AIM LT Headlamp Aiming Control
H/LAMP LT Headlamp
HORN WW Horn

PR-6
FRONT PROPELLER SHAFT
Revision: October 20052005 QX56
2. Remove the snap ring.
3. Push out and remove the journal bearing by lightly tapping the
yoke with a hammer, taking care not to damage the journal or
yoke hole.
4. Remove the bearing at the opposite side in above operation.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
ASSEMBLY
Journal
1. Assemble the journal bearings. Apply multipurpose grease on
the bearing inner surface.
NOTE:
During assembly, use caution so that the needle bearings do not
fall down.
APD0 11
SPD7 32
SPD1 31
WPD019

PR-10
REAR PROPELLER SHAFT
Revision: October 20052005 QX56
Disassembly and AssemblyEDS001WA
DISASSEMBLY
Journal
1. Put matching marks on the rear propeller shaft and flange yoke
as shown.
CAUTION:
For matching marks use paint. Never damage the rear pro-
peller shaft or flange yoke.
2. Remove the snap ring.
3. Push out and remove the journal bearing by lightly tapping the
yoke with a hammer, taking care not to damage the journal or
yoke hole.
4. Remove the bearing at the opposite side of above operation.
NOTE:
Put marks on the disassembled parts so that they can be rein-
stalled in their original positions from which they were removed.
SPD1 28
APD0 11
SPD7 32
SPD1 31

SERVICE DATA AND SPECIFICATIONS (SDS)
PR-13
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Revision: October 20052005 QX56
Snap RingEDS001WC
Model 2F1310
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.
Model 2S1350
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.Thickness Color Part Number*
1.99 (0.0783) White 37146-C9400
2.02 (0.0795) Yellow 37147-C9400
2.05 (0.0807) Red 37148-C9400
2.08 (0.0819) Green 37149-C9400
2.11 (0.0831) Blue 37150-C9400
2.14 (0.0843) Light brown 37151-C9400
2.17 (0.0854) Black 37152-C9400
2.20 (0.0866) No paint 37153-C9400
Thickness Color Part Number*
1.600 - 1.638 (0.0630 - 0.0645) Black 37146-7S000
1.549 - 1.588 (0.0610 - 0.0625) Black 37147-7S000
1.524 - 1.562 (0.0600 - 0.0615) Black 37148-7S000
1.499 - 1.537 (0.0590 - 0.0605) Black 37149-7S000

STEERING WHEEL
PS-7
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PS
Revision: October 20052005 QX56
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceEGS000UC
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check if the mounting nuts for steering gear assembly are loose.
Refer to PS-15, "
POWER STEERING GEAR AND LINKAGE" .
CHECKING STEERING WHEEL PLAY
1. Turn tires straight ahead, start engine, then turn steering wheel to the left and right lightly, and measure
steering wheel movement on the outer circumference when steering wheel is turned up to the point where
tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL

Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to
FSU-6, "
Front Wheel Alignment" .
1. Turn tires straight ahead, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot be attained by repositioning the steering wheel two teeth or less on steering
stem, loosen tie-rod lock nuts of steering outer sockets, then adjust tie-rods by the same amount in the
opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring power steering fluid up to operating temperature of 60° – 80°C (140° – 176°F).
4. Tires need to be inflated to specified pressure. Refer to WT-34, "
Tire" .
5. Check steering wheel turning force using Tool when steering
wheel has been turned 360° from the neutral position.
6. If steering wheel turning force is out of specification, inspect the
following:

Steering column. Refer to PS-11, "INSPECTION AFTER
REMOVAL" .

Power steering oil pump. Refer to PS-26, "CHECKING
RELIEF OIL PRESSURE" .
7. If steering column and power steering oil pump meet specifications, replace steering gear. Refer to PS-15,
"Removal and Installation" . End play of the axial direction for steering wheel : 0 mm (0 in)
LGIA0024E
Steering wheel play on the outer circumference : 0 − 35 mm (0 − 1.38 in)
Tool number : J-44372
Steering wheel
turning force: 39 N (4 kg-f, 9 lb-f) or less
WGIA0035E

PS-22
POWER STEERING GEAR AND LINKAGE
Revision: October 20052005 QX56
a. To avoid damaging inner rack oil seal, wrap an OHP sheet
[approximately 70 mm (2.76 in) × 100 mm (3.94 in)] around rack
teeth. Place oil seal on sheet. Then, pull oil seal along with OHP
sheet until they pass the toothed section of rack, then remove
sheet.
b. Insert rack oil seal (inner) to piston (rack Teflon® ring) position
and push retainer to adjust screw side with fingers lightly. Then
make rack move in gear housing assembly and install rack oil
seal (inner) to fit with gear housing assembly.
c. When installing outer rack oil seal, cover the end of rack with an
OHP sheet [70 mm (2.76 in) × 100 mm (3.94 in)]. It will avoid
damaging rack oil seal. Then place oil seal on sheet. Pull rack oil
seal along with OHP sheet until they pass rack end, then
remove sheet.
d. Install end cover assembly to rack, move it to gear housing assembly.
5. Using a 45 mm (1.77 in) open head wrench or suitable tool,
tighten end cover assembly to specification.
CAUTION:
Do not damage rack surface. If it is damaged, it may cause
oil leaks. Replace rack assembly.
SGIA0155E
WGIA0095E
SGIA0157E
SST 0 81 B