steering INFINITI QX4 2005 Factory Service Manual

PERIODIC MAINTENANCE
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PERIODIC MAINTENANCEPFP:00026
Introduction of Periodic MaintenanceELS001BJ
Two different maintenance schedules are provided, and should be used, depending upon the conditions in
which the vehicle is mainly operated. After 60,000 miles (96,000 km) or 48 months, continue the periodic
maintenance at the same mileage or time intervals, whichever comes first.
Maintenance For Off-road Driving (4WD only)ELS001BK
After driving the vehicle off-road through sand, mud, or water; more frequent maintenance may be required for
the following items:
Brake pads and rotors
Brake lines and hoses
Rear final drive oil, transmission fluid, and transfer fluid
Steering linkage
Drive shafts
Engine air cleaner filter
In-cabin microfilters
Schedule 1ELS001BL
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only Schedule 1Follow Periodic Maintenance Schedule 1 if your driving habits frequently includes
one or more of the following driving conditions:

Repeated short trips of less than 5 miles (8 km).

Repeated short trips of less than 10 miles (16 km) with outside temperatures
remaining below freezing.

Operating in hot weather in stop-and-go “rush hour” traffic.

Extensive idling and/or low speed driving for long distances, such as police,
taxi or door-to-door delivery use.

Driving in dusty conditions.

Driving on rough, muddy, or salt spread roads.

Towing a trailer or using a car-top carrier.Emission Control Sys-
tem MaintenanceMA-7
Chassis and Body
MaintenanceMA-8
Schedule 2Follow Periodic Maintenance Schedule 2 if none of the driving conditions shown
in Schedule 1 apply to the driving habits.Emission Control Sys-
tem MaintenanceMA-7Chassis and Body
MaintenanceMA-8
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title Perform at number of miles, kilo-
meters or months, whichever
comes first.Miles x 1,000
(km x 1,000)
Months3.75
(6)
37.50
(12)
611 . 2 5
(18)
915
(24)
1218.75
(30)
1522.5
(36)
1826.25
(42)
2130
(48)
24
Drive belts NOTE (1)MA-13
Air cleaner filter NOTE (2) [R]MA-16
EVAP vapor linesI*MA-20
Fuel linesI*MA-16
Fuel filter NOTE (3)—
Engine coolant NOTE (4)MA-13
Engine oil R R R R R R R RMA-17
Engine oil filter R R R R R R R RMA-17
Spark plugs (double PLATINUM-
TIPPED type)Replace every 105,000 miles (169,000 km).MA-18
Intake and exhaust valve clear-
ance*NOTE (5)EM-51

MA-8
PERIODIC MAINTENANCE
Revision: October 20052005 QX56
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace drive belts if damaged.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, go to the FL section.
(4) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(5) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are
required.
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate. [ ]: At the mileage intervals only. MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title Perform at number of miles, kilo-
meters or months, whichever
comes first.Miles x 1,000
(km x 1,000)
Months33.75
(54)
2737.5
(60)
3041.25
(66)
3345
(72)
3648.75
(78)
3952.5
(84)
4256.25
(90)
4560
(96)
48
Drive belts NOTE (1) I*MA-13
Air cleaner filter NOTE (2) [R]MA-16
EVAP vapor linesI*MA-20
Fuel linesI*MA-16
Fuel filter NOTE (3)—
Engine coolant NOTE (4) R*MA-13
Engine oil R R R R R R R RMA-17
Engine oil filter R R R R R R R RMA-17
Spark plugs (double PLATINUM-
TIPPED type)Replace every 105,000 miles (169,000 km).MA-18
Intake and exhaust valve clear-
ance*NOTE (5)EM-51
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section
- Page
or
- Content
Title Perform at number of miles, kilometers or
months, whichever comes first.Miles x
1,000
(km x
1,000)
Months3.75
(6)
37.5
(12)
611 . 2 5
(18)
915
(24)
1218.75
(30)
1522.5
(36)
1826.25
(42)
2130
(48)
24
Brake lines and cables I IMA-28
Brake pads and rotors I I I IMA-28
Automatic transmission fluid NOTE (1) I I MA-22
Transfer fluid and front final drive oil NOTE (1) I IMA-25,
MA-25
Rear final drive oil NOTE (1) I IMA-25,
MA-25
Steering gear, linkage, axle, and suspension
partsII I IMA-29,
MA-30
Tire Rotation NOTE (2)MA-28
Drive shaft boots and propeller shaft (4WD) I I I IMA-25
Exhaust system I I I IMA-22
In-cabin microfilter R RMA-21

PERIODIC MAINTENANCE
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(1) If towing a trailer, or using a car-top carrier, or driving on rough or muddy roads, change (not just inspect) oil at every 30,000 miles
(48,000 km) or 24 months.
(2) Refer to “Tire rotation” under the “General maintenance” heading earlier in this section.
Schedule 2ELS001BM
EMISSION CONTROL SYSTEM MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. [ ]: At the mileage intervals only
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace drive belts if damaged.
(2) Maintenance-free item. For service procedures, go to FL section.
(3) After 60,000 miles (96,000 km) or 48 months, replace every 30,000 miles (48,000 km) or 24 months.
(4) If valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by NISSAN for reliable vehicle operation. The owner need not perform
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and intervals are
required. MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section
- Page
or
- Content
Title Perform at number of miles, kilometers or
months, whichever comes first.Miles x
1,000
(km x
1,000)
Months33.75
(54)
2737.5
(60)
3041.25
(66)
3345
(72)
3648.75
(78)
3952.5
(84)
4256.25
(90)
4560
(96)
48
Brake lines and cables I IMA-28
Brake pads and rotors I I I IMA-28
Automatic transmission fluid NOTE (1) I IMA-22
Transfer fluid and front final drive oil NOTE (1) I IMA-25,
MA-25
Rear final drive oil NOTE (1) I IMA-25,
MA-25
Steering gear, linkage, axle, and suspension
partsIIIIMA-29,
MA-30
Tire Rotation NOTE (2)MA-28
Drive shaft boots and propeller shaft (4WD) I I I IMA-25
Exhaust system I I I IMA-22
In-cabin microfilter R RMA-21
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section - Page
or - Content
Title Perform at number of miles, kilome-
ters or months, whichever comes first.Miles x 1,000
(km x 1,000)
Months7.5
(12)
615
(24)
1222.5
(36)
1830
(48)
2437.5
(60)
3045
(72)
3652.5
(84)
4260
(96)
48
Drive belts NOTE (1) I*MA-13
Air cleaner filter [R] [R]MA-16
EVAP vapor lines I* I*MA-20
Fuel lines I* I*MA-16
Fuel filter NOTE (2)—
Engine coolant NOTE (3) R*MA-13
Engine oil R R R R R R R RMA-17
Engine oil filter R R R R R R R RMA-17
Spark plugs (PLATINUM-TIPPED
type)Replace every 105,000 miles (169,000 km).MA-18
Intake and exhaust valve clearance* NOTE (4)EM-51

MA-10
PERIODIC MAINTENANCE
Revision: October 20052005 QX56
CHASSIS AND BODY MAINTENANCE
Abbreviations: R = Replace. I = Inspect. Correct or replace if necessary. L = Lubricate. [ ]: At the mileage interval only.
(1) Refer to “Tire rotation” under the “General maintenance” heading earlier in this section.MAINTENANCE OPERATIONMAINTENANCE INTERVAL Reference
Section
- Page
or
- Content
Title Perform at number of miles, kilometers or
months, whichever comes first.Miles x 1,000
(km x 1,000)
Months7.5
(12)
615
(24)
1222.5
(36)
1830
(48)
2437.5
(60)
3045
(72)
3652.
5
(84)
4260
(96)
48
Brake lines and cables I I I IMA-28
Brake pads and rotors I I I IMA-28
Automatic transmission fluid I I I IMA-22
Transfer fluid and front final drive oil I I I IMA-25,
MA-25
Rear final drive oil I I I IMA-25,
MA-25
Steering gear, linkage, axle, and suspension
parts.IIMA-29,
MA-30
Tire rotation NOTE (1)MA-28
Drive shaft boots and propeller shaft
(4x4)IIIIMA-25
Exhaust systemIIMA-22
In-cabin microfilter R R R RMA-21

RECOMMENDED FLUIDS AND LUBRICANTS
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RECOMMENDED FLUIDS AND LUBRICANTSPFP:00000
Fluids and LubricantsELS001BN
*1: For further details, refer to MA-12, "SAE Viscosity Number" .
*2: Using automatic transmission fluid other than Genuine NISSAN Matic J ATF will cause deterioration in driveability and automatic
transmission durability, and may damage the automatic transmission, which is not covered by the NISSAN new vehicle limited warran ty.
*3: For Canada, NISSAN Automatic Transmission Fluid (ATF), DEXRON
TM III or MERCONTM or equivalent ATF may also be used.
*4: Available in mainland U.S.A. through your NISSAN dealer.
*5: For further details, see “Air conditioner specification label”.
*6: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0° C (32° F).
*7: DEXRON
TM III, MERCONTM or equivalent may also be used. Outside the continental United States and Alaska contact a NISSAN
dealership for more information regarding suitable fluids, including recommended brand(s) of DEXRONTM III or MERCONTM Automatic
Transmission Fluid.
*8: For further details, refer to GI-5, "
Precautions for Fuel (Unleaded Regular Gasoline Recommended)" . DescriptionCapacity (Approximate)
Recommended Fluids/Lubricants
Metric US measure Imp measure
Fuel
105.8 28 US gal 23 1/4 Imp galUnleaded gasoline with octane rating of
at least 91 AKI (RON 96) *8
Engine oil
Drain and refillWith oil filter
change6.2 6 1/2 qt 5 1/2 qt

API Certification Mark *1

API grade SL, Energy Conserving *1

ILSAC grade GF-III *1 Without oil filter
change5.9 6 1/4 qt 5 1/4 qt
Dry engine (engine overhaul)
7.6 8 qt 6 3/4 qt
Cooling systemWith reservoir
at MAX level14.4 3 3/4 gal 3 1/8 galGenuine NISSAN Long Life Anti-freeze
coolant or equivalent
Automatic transmission fluid (ATF)
10.6 11 1/4 qt 9 3/8 qt Genuine NISSAN Matic J ATF *2
Rear final drive oil
1.75 3 3/4 pt 3 1/8 pt API GL-5 Viscosity SAE 80W-90 *6
Transfer fluid
3.0 3 1/8 qt 2 5/8 qtGenuine NISSAN Matic D ATF (Conti-
nental U.S and Alaska) or Canada NIS-
SAN Automatic Transmission Fluid *7
Front final drive oil
1.6 3 3/8 pt 2 7/8 pt API GL-5 Viscosity SAE 80W-90 *6
Power steering fluid (PSF)
1.0 2 1/8 pt 1 3/4 pt Genuine NISSAN PSF or equivalent *3
Brake fluid — — —Genuine NISSAN Super Heavy Duty
Brake Fluid or equivalent,
DOT 3 (US FMVSS No. 116) *4
Brake grease — — —PBC (poly butyl cuprysil) grease or
equivalent
Multi-purpose grease — — — NLGI No. 2 (lithium soap base)
Windshield washer fluid
4.5 1 1/4 gal 1 galGenuine NISSAN Windshield Washer
Concentrate Cleaner & Anti-freeze or
equivalent
Air conditioning system refrigerant 1.08 ± 0.05 kg 2.38 ± 0.11 lb 2.38 ± 0.11 lb HFC-134a (R-134a) *5
Air conditioning system lubricants
290 m9.8 fl oz 10.2 fl ozNISSAN A/C System Lubricant Type S or
equivalent *5

ENGINE MAINTENANCE
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ENGINE MAINTENANCEPFP:00000
Checking Drive BeltsELS001BP
WA RN ING:
Be sure to perform when the engine is stopped.
1. Remove air duct and resonator assembly (inlet) when inspecting drive belt.
2. Make sure that indicator (single line notch) of each auto tensioner is within the allowable working range
“A” (between three line notches) as shown.
NOTE:

Check the auto tensioner indication when the engine is cold.

When the new drive belt is installed, the range should be as shown.

The indicator notch is located on the moving side of the auto tensioner.
3. Visually check entire belt for wear, damage or cracks.
4. If the indicator is out of allowable working range or belt is damaged, replace the belt. Refer to EM-12,
"DRIVE BELTS" .
DRIVE BELT TENSION
There is no manual drive belt tension adjustment. The drive belt tension is automatically adjusted by the auto
tensioner.
Changing Engine CoolantELS001BQ
WA RN ING:

To avoid being scalded, never change the coolant when the engine is hot.

Wrap a thick cloth around the cap to carefully remove the cap. First, turn the cap a quarter of a
turn to release any built-up pressure, then push down and turn the cap all the way to remove it.
DRAINING ENGINE COOLANT
1. Turn ignition switch ON and set temperature control lever all the way to HOT position or the highest tem-
perature position. Wait 10 seconds and turn ignition switch OFF.
2. Remove the engine front undercover using power tool.
1. Drive Belt 2. Power Steering Pump Pulley 3. Generator pulley
4. Crankshaft Pulley 5. A/C Compressor 6. Idler Pulley
7. Cooling Fan Pulley 8. Water Pump Pulley 9. Drive Belt Tensioner
LBIA0391E

CHASSIS AND BODY MAINTENANCE
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CALIPER
Check the caliper for any leaks, repair as necessary.
PA D
Check the pads for wear or damage. Refer to BR-31, "Front Disc
Brake" , BR-32, "Rear Disc Brake" .
Checking Steering Gear and LinkageEL S00 1C D
STEERING GEAR

Check the steering gear housing for looseness, damage and oil
leakage as shown.

Check the steering column connections for looseness.
STEERING LINKAGE

Check the ball joint, dust cover and other component parts for looseness, wear, damage, and grease leak-
age.
Checking Power Steering Fluid and LinesELS001CE
CHECKING FLUID LEVEL

Check the power steering fluid level with the engine off.

Check fluid level on reservoir. Use “HOT” range at fluid tempera-
tures of 50° to 80°C (122° to 176°F). Use “COLD” range at fluid
temperatures of 0° to 30°C (32° to 86°F).
CAUTION:

Do not overfill.

Refer to MA-11, "Fluids and Lubricants" .
SM A92 2A
LMA051
SGIA0506E
LGIA0021E

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

HARNESS
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HSEAT SE Heated Seat
ICC ACS Intelligent Cruise Control
ICCBOF EC ICC Brake Switch
ICC/BS EC ICC Steering Switch
ICC/SW EC ICC Brake Switch
I/MIRR GW Inside Mirror (Auto Anti-Dazzling Mirror)
IATS EC Intake Air Temperature Sensor
IGNSYS EC Ignition System
ILL LT Illumination
INJECT EC Injector
INT/L LT Room/Map, Vanity, Cargo, Personal, Foot, Step, and Puddle Lamps
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
MAFS EC Mass Air Flow Sensor
MAIN EC Main Power Supply and Ground Circuit
METER DI Speedometer, Tachometer, Temp. and Fuel Gauges
MIL/DL EC Malfunction Indicator Lamp
MIRROR GW Door Mirror
NATS BL Nissan Anti-Theft System
NAVI AV Navigation System
O2H2B1 EC Rear Heated Oxygen Sensor 2 Heater Bank 1
O2H2B2 EC Rear Heated Oxygen Sensor 2 Heater Bank 2
O2S2B1 EC Heated Oxygen Sensor 2 Bank 1
O2S2B2 EC Heated Oxygen Sensor 2 Bank 2
P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE) (Bank 1)
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (POS)
POWER PG Power Supply Routing
PRE/SE EC EVAP Control System Pressure Sensor
PS/SEN EC Power Steering Pressure Sensor
R/VIEW DI Rear View Monitor
RP/SEN EC Refrigerant Pressure Sensor
SEN/PW EC Sensor Power Supply
SHIFT AT A/T Shift Lock System
SONAR DI Rear Sonar System
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System
STOP/L LT Stop Lamp
T/TOW LT Trailer Tow
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps
T/F TF Transfer Case
TPS1 EC Throttle Position Sensor
TPS2 EC Throttle Position Sensor
TPS3 EC Throttle Position Sensor
TRNSCV BL HOMELINK® Universal Transceiver
TURN LT Turn Signal and Hazard Warning Lamps
VDC BRC Vehicle Dynamic Control System
VEHSEC BL Vehicle security (theft warning) system

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
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NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001W4
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PR-4
(front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
PR-4 (front)
PR-8 (rear)
FFD-6, "
NVH Troubleshooting Chart
"
RFD-5, "
NVH Troubleshooting Chart
"
FAX -4, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-4, "
NVH Troubleshooting Chart
"
RSU-5, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
FAX -4, "
NVH Troubleshooting Chart
"
BR-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tire s
Road wheel
Drive shaft
Brakes
Steering
SymptomNoise×××××××××××
Shake×××××××
Vibration××× ××× × ×