tow INFINITI QX56 2004 Factory Owner's Manual

EM-20Revision: August 2007
EXHAUST MANIFOLD AND THREE WAY CATALYST
2004 QX56
c. Remove the air fuel ratio A/F sensors from both left and right
exhaust manifolds using Tool.
CAUTION:

Be careful not to damage the air fuel ratio A/F sensors

Discard any air fuel ratio A/F sensor which has been
dropped from a height of more than 0.5m (19.7 in) onto a
hard surface such as a concrete floor. Replace it with a
new one.
7. Remove the front cross bar.
8. Remove the exhaust manifold (left bank) using the following
steps.
a. Remove the exhaust front tube using power tool. Refer to EX-3,
"Removal and Installation" .
b. Remove the exhaust manifold cover.
c. Loosen the nuts in reverse order shown using power tool.
d. Remove the exhaust studs from positions 2, 4, 6, 8 and remove
the left exhaust manifold.
9. Remove the exhaust manifold (right bank) using the following
steps.
a. Remove the exhaust front tube using power tool. Refer to EX-3,
"Removal and Installation" .
b. Remove the oil level gauge guide. Refer to EM-22, "
OIL PAN
AND OIL STRAINER" .
c. Remove the exhaust manifold cover.
d. Loosen the nuts in reverse order shown using power tool.
e. Remove the exhaust studs from positions 2, 4, 6, 8 and remove the right exhaust manifold.
INSPECTION AFTER REMOVAL
Surface Distortion

Use a reliable straightedge and feeler gauge to check the flat-
ness of each exhaust manifold flange surface.

If flatness exceeds the limit, replace the exhaust manifold.
INSTALLATION
Installation is in the reverse order of removal.

Install a new exhaust manifold gasket with the top of the triangu-
lar up mark on it facing up and its coated face (gray side) toward
the exhaust manifold side.Tool number : — (J-44626)
WBIA0630E
KBIA2464E
Flatness limit : 0.3 mm (0.012 in)
KBIA2504E
KBIA2553E

DRIVE SHAFT
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Revision: August 20072004 QX56
4. Remove the snap ring, then remove the ball cage, steel ball,
inner race assembly from the drive shaft.
5. Remove the boot from the drive shaft.
6. Remove any old grease on the housing using paper towels.
Wheel Side
1. Mount the drive shaft in a vise.
CAUTION:
When mounting the drive shaft in a vise, use copper or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands, then remove the boot from the joint sub-assembly.
3. Screw a suitable drive shaft puller 30 mm (1.18 in) or more into
the threaded part of the joint sub-assembly. Pull the joint sub-
assembly off of the drive shaft as shown.
NOTE:
Align the sliding hammer and drive shaft and remove the joint
sub-assembly by pulling directly.
CAUTION:

If the joint sub-assembly cannot be removed after five or
more attempts, replace the drive shaft and joint sub-
assembly as a set.
4. Remove the boot from the drive shaft.
5. Remove the circlip from the drive shaft.
6. While rotating the ball cage, remove any old grease from the joint sub-assembly using paper towels.
INSPECTION AFTER DISASSEMBLY
Drive Shaft

Replace the drive shaft if there is any runout, cracking, or other damage.
Joint Sub-assembly

Check for any rough rotation or unusual axial looseness.

Clean any foreign material from inside the joint sub-assembly.

Check for any compression scars, cracks, or fractures.
CAUTION:
If any defective conditions are found in the joint sub-assembly components, replace the entire
joint sub-assembly.
Sliding Joint Side Housing

Check for any compression scars, cracks, fractures, or unusual wear on the ball rolling surface.

Check for any damage to the drive shaft screws.

Check for any deformation of the boot installation components.
Ball Cage

Check the sliding surface for any compression scars, cracks, or fractures.
SFA514A
SDIA0606E

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Description ............................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ................................................................. 3
General Precautions ................................................ 4
Precautions for Three Way Catalyst ......................... 5
Precautions for Fuel (Unleaded Premium Gasoline
Required) ................................................................. 5
Precautions for Multiport Fuel Injection System or
Engine Control System ............................................ 6
Precautions for Hoses .............................................. 6
HOSE REMOVAL AND INSTALLATION ............... 6
HOSE CLAMPING ................................................ 6
Precautions for Engine Oils ...................................... 7
HEALTH PROTECTION PRECAUTIONS ............. 7
Precautions for Air Conditioning ............................... 7
HOW TO USE THIS MANUAL ................................... 8
Description ............................................................... 8
Terms ....................................................................... 8
Units ......................................................................... 8
Contents ................................................................... 8
Relation between Illustrations and Descriptions ...... 9
Components ........................................................... 10
SYMBOLS ........................................................... 10
How to Follow Trouble Diagnoses ...........................11
DESCRIPTION .....................................................11
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ................................................11
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................... 13
How to Read Wiring Diagrams ............................... 15
CONNECTOR SYMBOLS ................................... 15
SAMPLE/WIRING DIAGRAM - EXAMPL - ......... 16DESCRIPTION .................................................... 17
Abbreviations .......................................................... 22
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ......................................................................... 24
How to Check Terminal ........................................... 24
CONNECTOR AND TERMINAL PIN KIT ............ 24
HOW TO PROBE CONNECTORS ...................... 24
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................... 27
WORK FLOW ...................................................... 27
INCIDENT SIMULATION TESTS ........................ 27
CIRCUIT INSPECTION ....................................... 30
Control Units and Electrical Parts ........................... 35
PRECAUTIONS .................................................. 35
SMJ INSTALLATION ........................................... 36
CONSULT-II CHECKING SYSTEM .......................... 37
Description .............................................................. 37
Function and System Application ........................... 37
Nickel Metal Hydride Battery Replacement ............ 38
Checking Equipment .............................................. 38
CONSULT-II Start Procedure .................................. 38
CONSULT-II Data Link Connector (DLC) Circuit .... 39
INSPECTION PROCEDURE .............................. 39
LIFTING POINT ......................................................... 40
Pantograph Jack ..................................................... 40
Garage Jack and Safety Stand ............................... 40
2-Pole Lift ............................................................... 41
TOW TRUCK TOWING ............................................. 42
Tow Truck Towing ................................................... 42
2WD MODELS .................................................... 42
4WD MODELS .................................................... 43
Vehicle Recovery (Freeing a stuck vehicle) ............ 43
TIGHTENING TORQUE OF STANDARD BOLTS .... 44
Tightening Torque Table ......................................... 44
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS ............................................................... 45
Recommended Chemical Products and Sealants ... 45
IDENTIFICATION INFORMATION ............................ 46
Model Variation ....................................................... 46
Identification Number .............................................. 47

GI-42
TOW TRUCK TOWING
Revision: August 20072004 QX56
TOW TRUCK TOWINGPFP:00000
To w Tr u c k To w i n gEAS0014Z
WAR NIN G:

Never get under the vehicle while it is supported only by the jack. Always use safety stands to
support the frame when you have to get under the vehicle.

Place wheel chocks at both front and back of the wheels on the ground.
CAUTION:

All applicable State or Provincial (in Canada) laws and local laws regarding the towing operation
must be obeyed.

It is necessary to use proper towing equipment to avoid possible damage during towing opera-
tion. Towing is in accordance with Towing Procedure Manual at dealer.

Always attach safety chains before towing.

When towing, make sure that the transmission, steering system and powertrain are in good order.
If any unit is damaged, dollies must be used.

Never tow an automatic transmission model from the rear
(i.e., backward) with four wheels on the ground as this may
cause serious and expensive damage to the transmission.
2WD MODELS
NISSAN does not recommend towing automatic transmission
equipped vehicles with the drive wheels on the ground.
CAUTION:

When towing with the front wheels on the ground: Turn the
ignition key to the OFF position and move the transmission
selector lever to N (neutral) position, turn the ignition key to
OFF position and secure the steering wheel in a straight
ahead position with a rope or similar device. Never place
the ignition key in the LOCK position. This will result in
damage to the steering lock mechanism.
Observe the following restricted towing speeds and distances.
WAIA0030E
Speed : Below 95 km/h (60 MPH)
Distance : Less than 800 km (500 miles)
WAIA0031E

TOW TRUCK TOWING
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4WD MODELS
NISSAN does not recommend towing automatic transmission
equipped vehicles with the drive wheels on the ground.
CAUTION:

When towing with the front wheels on the ground or rear
wheels on the ground (If you do not use towing dollies): Set
the free-running hubs to the free position and move the
transfer case shift lever into the “2H” position.

When towing with the front on the ground: Turn the ignition
key to the OFF position and secure the steering wheel in a
straight ahead position with a rope or similar device. Never
place the ignition key in the LOCK position. This will result
in damage to the steering lock mechanism.
Observe the following restricted towing speeds and distances.
Towing Point
CAUTION:
Never tow the vehicle using only the towing points. To avoid
damaging the vehicle body, use proper towing equipment when
towing.
Vehicle Recovery (Freeing a stuck vehicle)EAS00150

Tow chains or cables must be attached only to the main structural members of the vehicle or the
towing hooks (if so equipped). Otherwise, the vehicle body will be damaged.

Use the towing hook (if so equipped) only to free a vehicle stuck in sand, snow, mud, etc. Never
tow the vehicle for a long distance using only the towing hook.

The towing hook is under tremendous force when used to free a stuck vehicle. Never pull the hook
at an angle.

Always pull the cable straight out from the front or rear of the vehicle.

Pulling devices should be routed so they do not touch any part of the suspension, steering, brake,
or cooling systems.

Pulling devices such as ropes or canvas straps are not recommended for use in vehicle towing or
recovery.
WA RN ING:

Stand clear of a stuck vehicle.

Do not spin your tires at high speed. This could cause them to explode and result in serious injury.
Parts of your vehicle could also overheat and be damaged.Speed : Below 95 km/h (60 MPH)
Distance : Less than 800 km (500 miles)
WAIA0032E
WAIA0055E

FRONT DOOR GLASS AND REGULATOR
GW-69
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FRONT DOOR GLASS AND REGULATORPFP:80300
Removal and InstallationEIS00623
FRONT DOOR GLASS
Removal
1. Remove the front door speaker. Refer to AV-45, "Removal and Installation of Front Door Speaker" .
2. Remove the hole cover over rear door glass bolt.
3. Temporarily reconnect the power window switch to the door harness.
4. Operate the power window main switch to raise/lower the door glass until the door glass bolts can be
seen.
5. Remove the inside seal.
6. Remove the door glass bolts.
7. While holding the front door glass, raise it at the rear end and
pull the door glass out of the sash toward the outside of the
door.
Installation
Installation is in the reverse order of removal.
LIIA0959E
LIIA1687E
Door glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)

IDX-7
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ALPHABETICAL INDEX
Rear axle ........................................................... RAX-5
Rear bumper ....................................................... EI-15
Rear case (Transfer) ........................................ TF-112
Rear combination lamp removal and installation ... LT-
122
Rear cover packing replacement diff. .............. RFD-23
Rear door ........................................... BL-129, GW-72
Rear seat ......................................................... SE-103
Rear seat belt ...................................................... SB-6
Rear suspension ............................................. RSU-25
Rear view monitor ............................................... DI-72
Rear washer .................................................... WW-33
Rear window defogger ..................................... GW-78
Rear wiper ....................................................... WW-33
Refrigerant connection precaution .................... ATC-7
Refrigerant discharging evacuating charging ATC-162
Refrigerant general precaution .......................... ATC-6
Refrigerant lines ........... ATC-162, ATC-170, ATC-171
Refrigerant pressure sensor ............ EC-607, ATC-173
Relay box .......................................................... PG-78
Remote keyless entry system ............................ BL-44
Removal and installation (A/T) ........... AT-255, AT-258
Removal and installation (Transfer) ................. TF-109
Revolution sensor (A/T) ................................... AT-112
Ring gear diff. inspection ................................. RFD-12
Road wheel size ................................................. GI-49
Rocker cover ..................................................... EM-33
Room lamp ....................................................... LT-129
Room lamp - See Interior lamp ........................ LT-129
ROOM/L - Wiring diagram ................................ LT-135
RP/SEN - Wiring diagram ............................... EC-608
S
SEAT - Wiring diagram ..................................... SE-88
Seat belt inspection ............................... SB-10, MA-31
Seat belt pre-tensioner .................................... SRS-57
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-6
Seat, front .......................................................... SE-96
Seat, rear ........................................................ SE-103
Self-diagnosis (Transfer) .................................... TF-27
SEN/PW - Wiring diagram ............................... EC-425
SHIFT - Wiring diagram ................................... AT-237
Shift lock system .............................................. AT-236
Shock absorber (front) .................................... FSU-10
Shock absorber (rear) ..................................... RSU-34
Side air bag (satellite) sensor .......................... SRS-56
Side bearing preload diff. ................................ RFD-18
Side curtain air bag ......................................... SRS-53
Side trim .............................................................. EI-34
SMJ (super multiple junction) ............................ PG-74
SONAR - Wiring diagram .................................... DI-62
Spare tire size .................................................... GI-49
Spark plug ......................................................... EM-27
Spark plug replacement .................................... MA-17
Specification value .......................................... EC-123
Speedometer ......................................................... DI-5
Spiral cable ..................................................... SRS-47
SROOF - Wiring diagram .................................. RF-13
SRS - See Supplemental Restraint System ...... SRS-5
SRS - Wiring diagram ...................................... SRS-12
SRS Trouble diagnoses ..................................... SRS-8
Stabilizer bar (front) ......................................... FSU-12
Stabilizer bar (rear) ......................................... RSU-41
Stall test (A/T) .................................................... AT-58
Standardized relay ............................................. PG-72
START - Wiring diagram ................................... SC-11
Starting system .................................................. SC-10
Steering gear, linkage and transfer gear inspection .....
MA-28
Steering linkage ................................................. PS-15
Steering wheel and column ................................. PS-7
Step lamp ......................................................... LT-129
Stop lamp ......................................................... LT-103
Stop lamp switch ............................... EC-551, EC-621
STOP/L - Wiring diagram ................................. LT-104
Strut (front) ...................................................... FSU-10
Sun gear (Transfer) .......................................... TF-127
Sun roof, electric ................................................ RF-10
Sunload sensor .............................................. ATC-131
Sunroof .............................................................. RF-24
Supplemental Restraint System ........................ SRS-5
Supplemental restraint system - Wiring diagram . SRS-
12
Symbols and abbreviations ..................... GI-10, GI-22
Symptom matrix chart ........................................ EC-84
System readiness test (SRT) code .................... EC-55
T
T/TOW - Wiring diagram ................................... LT-126
Tachometer .......................................................... DI-5
Tail lamp ........................................................... LT-108
TAIL/L - Wiring diagram .................................... LT-111
TCM circuit diagram .......................................... AT-51
TCM inspection table ......................................... AT-90
TCS - Wiring diagram ..................................... BRC-16
TCS (traction control system) ........................... BRC-7
TCS component parts and connector location BRC-14
TCS wheel sensors ........................................ BRC-14
Thermometer ...................................................... DI-26
Three way catalyst ............................................. EM-19
Three way catalyst function (Bank 1) .............. EC-267
Three way catalyst function (Bank 2) .............. EC-267
Three way catalyst precautions ............................ GI-5
Throttle control motor ...................................... EC-378
Throttle control motor relay .............................. EC-373
Throttle position sensor (TPS) ... EC-171, EC-236, EC-
420, EC-422, EC-569
Throttle valve closed position learning .............. EC-44
Tie-rod ............................................................... PS-15
Timing chain ...................................................... EM-35
Tire rotation ....................................................... MA-27
Tire size .............................................................. GI-49
Tooth contact diff. ............................................ RFD-19
Torque converter installation AT-256, AT-257, AT-259,
AT-260

IDX-8
ALPHABETICAL INDEX
Torque convertor clutch solenoid valve ... AT-118, AT-
121
Tow truck towing ................................................. GI-42
Towing point ....................................................... GI-43
TPS1 - Wiring diagram .................................... EC-238
TPS2 - Wiring diagram .................................... EC-173
TPS3 - Wiring diagram .................................... EC-571
Traction control system - Wiring diagram ....... BRC-16
Transfer control device .................................... TF-104
Transfer control unit inspection table ................. TF-55
Transfer dropping resistor .................................. TF-96
Transfer fluid temperature sensor ...................... TF-95
Transfer motor ................................................. TF-106
Transfer motor relay .......................................... TF-97
Transfer oil replacement ................................... MA-24
Transfer serial number ........................................ GI-48
Transmission serial number ................................ GI-48
Tread-FR&RR (Dimensions) ............................... GI-49
Trim ..................................................................... EI-34
TRNSCV - Wiring diagram ............................... BL-157
Trouble diagnoses .............................................. GI-11
Turbine revolution sensor ................................ AT-134
TURN - Wiring diagram ...................................... LT-83
Turn signal lamp ................................................. LT-80
Two trip detection logic ...................................... EC-49
Two-pole lift ........................................................ GI-41
V
Vacuum hose (brake system) ............................ BR-20
Vacuum hose drawing (Engine control) ............. EC-24
Valve clearance ................................................ EM-52
Valve guide ....................................................... EM-66
Vanity mirror lamp ............................................. LT-129
VDC (vehicle dynamics control) ........................ BRC-7
VDC -Wiring diagram ...................................... BRC-16
Vehicle identification number .............................. GI-47
Vehicle recovery (freeing a stuck vehicle) .......... GI-43
Vehicle speed sensor (VSS) ............................ EC-340
VEHSEC - Wiring diagram ................................. BL-80
VENT/V - Wiring diagram .................. EC-294, EC-506
Video Monitor ..................................................... AV-60
Viscosity number (SAE) .................................... MA-11
W
W/ANT - Wiring diagram .................................... AV-49
Wait detection switch ......................................... TF-96
WARN - Wiring diagram ..................................... DI-32
Warning chime .................................................... DI-43
Warning lamps .................................................... DI-31
Washer, front ..................................................... WW-4
Washer, rear .................................................... WW-33
Water pump ...................................................... CO-15
Water temperature gauge ..................................... DI-5
Wheel alignment (front) ..................................... FSU-6
Wheel alignment (rear) ................................... RSU-27
Wheel balance .................................................. MA-25
Wheel bearing (front) ......................................... FAX-5
Wheel bearing (rear) ......................................... RAX-5
Wheel hub (rear) ............................................... RAX-5
Wheel size .......................................................... GI-49
Wheelbase (Dimensions) .................................... GI-49
Width (Dimensions) ............................................. GI-49
WINDOW - Wiring diagram .............................. GW-22
Window, door ...................................... GW-69, GW-72
Windshield ....................................................... GW-11
WIP/R - Wiring diagram ................................... WW-37
WIPER - Wiring diagram .................................... WW-9
Wiper, front ........................................................ WW-4
Wiper, rear ....................................................... WW-33
Wiring Diagram (Cell code) list ......................... PG-61
Wiring diagram (Transfer) .................................. TF-18
Wiring diagrams .................................................. GI-15
WT-T/WARN - Wiring diagram .......................... WT-10

IP-12
INSTRUMENT PANEL ASSEMBLY
Revision: August 20072004 QX56
REMOVAL AND INSTALLATION
Cluster Lid C
1. Remove center console. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Pull cluster lid C towards rear of vehicle to release clips.
3. Disconnect electrical connectors.
Installation is in the reverse order of removal.
CAUTION:
When removing and installing, place shop cloths onto surrounding parts to protect A/T finisher and
center console from damage.
Cluster Lid D
1. Remove cluster lid C. Refer to IP-12, "Cluster Lid C" .
2. Pull lid toward rear of vehicle to release clips, remove cluster lid D.

Disconnect electrical connectors.
Installation is in the reverse order of removal.
CAUTION:
When removing and installing, place shop cloths onto surrounding parts to protect A/T finisher and
center console from damage.
LIIA1336E
LIIA1337E

CAN COMMUNICATION
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Malfunction indicator lamp signal T R
Front wiper request signal T R
Front wiper stop position signal R T
Rear window defogger switch signal T R R
Rear window defogger control signal R R R T
Hood switch signalRT
Theft warning horn request signal T R
Horn chirp signalTR
Steering angle sensor signalTR
ABS warning lamp signal R T
VDC OFF indicator lamp signal R T
SLIP indicator lamp signal R T
Brake warning lamp signal R T
System setting signalRT
TR
Distance to empty signal T R
ASCD operation signal T R
ASCD OD cancel request T R
A/T CHECK indicator lamp signal T R
A/T position indicator lamp signal T R
Tire pressure signal R T
Tire pressure data signal R T
1st position switch signal R T
4th position switch signal R T
Tow mode switch signal R T
A/T fluid temperature sensor signal T RSignals ECM TCMDriver
seat
con-
trol
unitCom-
bina-
tion
meterDis-
play
con-
trol
unitBCMStee r-
ing
angle
sensorFront
air
control ABS
actua-
tor and
elec-
tric unit
(con-
trol
unit)IPDM
E/R