2004 INFINITI QX56 ECO mode

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

GW-54
POWER WINDOW SYSTEM
Revision: August 20072004 QX56
Power Window Serial Link Check Front LH and RHEIS002V8
1. CHECK SERIAL LINK OUTPUT SIGNAL
With CONSULT-II
Check door lock and unlock switch (“LOCK SW DR/AS”, “UNLK SW DR/AS”) in DATA MONITOR mode for
“MULTI REMOTE ENT” with CONSULT-II. Refer to GW-34, "
DATA MONITOR" .

When door lock and unlock switch is turned to LOCK

When door lock and unlock switch is turned to UNLOCK
Without CONSULT-II
1. Remove key from ignition switch, and the door of driver side and passenger side is closed.
2. Check the signal between BCM connector and ground with oscilloscope when door lock and unlock
switch (front LH and front RH) is turned “LOCK” or “UNLOCK”.
3. Make sure signals which are shown in the figure below can be
detected during 10 second just after door lock and unlock switch
(front LH and front RH) is turned “LOCK” or “UNLOCK”.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK BCM OUTPUT SIGNAL
Check power window serial link (“POWER WINDOW DOWN”) in “ACTIVE TEST” mode with CONSULT-II.
Refer to GW-34, "
ACTIVE TEST" .
When “ACTIVE TEST” is executed, is the window of driver side and
passenger side lowered?
YES or NO
YES >> Further inspection is necessary. Refer to GW-36, "Tro u-
ble Diagnoses Symptom Chart" .
NO >> Replace BCM.LOCK SW DR/AS : ON
UNLK SW DR/AS : ON
LIIA0172E
ConnectorTerminals (Wire color)
Signal
(+) ( – )
M18 22 (W/V) Ground
LIIA0391E
PIIA2344E
PIIA3080E

IDX-6
ALPHABETICAL INDEX
M
MAFS - Wiring diagram ..................... EC-149
, EC-156
Magnet clutch ............................... ATC-104, ATC-167
MAIN - Wiring diagram .................................... EC-128
Main oil pump (Transfer) .................................. TF-122
Mainshaft (Transfer) ........................................ TF-116
Maintenance (engine)Schedule 1 ....................... MA-6
Maintenance (engine)Schedule 2 ....................... MA-8
Major overhaul (Final drive) .............. FFD-14, RFD-13
Major overhaul (Transfer) ................................ TF-110
Malfunction indicator lamp (MIL) ........................ EC-63
Map lamp .......................................................... LT-129
Mass air flow sensor (MAFS) ............. EC-146, EC-154
Meter ..................................................................... DI-5
METER - Wiring diagram .................................... DI-10
MIL data link connectors circuit ....................... EC-631
MIL/DL - Wiring diagram .................................. EC-631
MIRROR - Wiring diagram ................................ GW-99
Misfire .............................................................. EC-243
Mode door control linkage adjustment ............. ATC-65
Mode door motor ............................ ATC-63, ATC-152
Model variation ................................................... GI-46
Multiport fuel injection (MFI) system .................. EC-26
Multiport fuel injection precautions ....................... GI-6
Multi-remote control system ............................... BL-44
N
NATS - Wiring diagram .................................... BL-141
NAVI - Wiring diagram ....................................... AV-79
NAVI Control Unit ............................................ AV-157
Neutral-4LO switch ............................................ TF-96
Nissan torque demand (NTD) control system .... EC-29
NVH troubleshooting (AX) ................................. FAX-4
NVH troubleshooting (EM) .................................. EM-9
NVH troubleshooting (Final drive) ..................... RFD-5
NVH troubleshooting (Propeller shaft) ................. PR-3
NVH troubleshooting (RAX) .............................. RAX-4
NVH troubleshooting (RSU) .............................. RSU-5
NVH troubleshooting (ST) .................................... PS-5
NVH troubleshooting (WT)NVH troubleshooting (WT) .
WT-3
NVIS (Nissan vehicle immobilizer system) precautions
GI-3
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O2H2B1 - Wiring diagram ................................ EC-140
O2H2B2 - Wiring diagram ................................ EC-142
O2S2B1 - Wiring diagram .. EC-188, EC-199, EC-386,
EC-398
O2S2B2 - Wiring diagram .. EC-190, EC-201, EC-388,
EC-400
Oil cooler (engine) ............................................. LU-11
Oil filter ............................................................... LU-10
Oil filter (Transfer) ............................................ TF-107
Oil pan (engine) ................................................ EM-22
Oil pressure (engine) ........................................... LU-7
Oil pressure relief valve (engine) ......................... LU-5
Oil pump (engine) .............................................. LU-13
Oil seal replacement (engine) ........................... EM-56
Oil seal replacement (front of final drive) FFD-8, RFD-6
Oil seal replacement (side of final drive) FFD-10, RFD-
8
On board diagnostic system ............................. EC-49
ORVR (On-board Refueling Vapor Recovery) EC-640
Overheat ......................................................... EC-410
P
P/SCKT - Wiring diagram ................................. WW-54
Pantograph jack .................................................. GI-40
Park/Neutral position switch ............................ EC-546
Park/neutral position switch (A/T) .................... AT-109
Parking brake control ........................................... PB-4
Parking lamp .................................................... LT-108
PCV (positive crankcase ventilation) .............. EC-645
Periodic maintenance ......................................... MA-6
Personal lamp .................................................. LT-129
PGC/V - Wiring diagram ................... EC-287, EC-498
PHASE - Wiring diagram ................................ EC-261
Pinion bearing preload diff. ............................. RFD-21
Piston pin inspection ......................................... EM-89
Piston ring inspection ........................................ EM-90
Piston to bore clearance ................................... EM-94
Planetary carrier (Transfer) .............................. TF-127
PNP/SW - Wiring diagram .............................. EC-548
POS - Wiring diagram ..................................... EC-256
POWER - Wiring diagram ................................... PG-6
Power seat ......................................................... SE-88
Power steering fluid level .................................. MA-29
Power steering gear ........................................... PS-15
Power steering oil pump .................................... PS-26
Power steering pressure (PSP) sensor ........... EC-346
Power steering system bleeding .......................... PS-6
Power supply routing .......................................... PG-4
Power window .................................................. GW-15
PRE/SE - Wiring diagram ................. EC-304, EC-310
Precautions (General) ........................................... GI-4
Precautions in repairing high strength steel ..... BL-192
Pressure switch 1 ............................... AT-154, AT-175
Pressure switch 2 ............................................. AT-172
Pressure switch 3 ............................... AT-148, AT-178
Pressure switch 5 ............................... AT-160, AT-181
Pressure switch 6 ............................... AT-166, AT-184
Pressure test (A/T) ............................................. AT-59
Propeller shaft ........................................... PR-4, PR-8
Propeller shaft inspection .................................. MA-24
Propeller shaft on vehicle service ....................... PR-8
Propeller shaft vibration ............................ PR-4, PR-8
PS/SEN - Wiring diagram ............................... EC-347
R
R/VIEW - Wiring diagram .................................... DI-75
Radiator ............................................................ CO-10
Rear Audio Remote Control Unit ....................... AV-47

HEADLAMP (FOR USA)
LT-19
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4. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
WORK SUPPORT
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
3. Touch item on “SELECT WORK ITEM” screen.
4. Touch “START”.
5. Touch “CHANGE SETT”.
6. The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.
7. Touch “END”.
Display Item List
DATA MONITOR
Operation Procedure
1. Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR ITEM" screen.
4. Touch “START”.
5. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is selected, all the items will be monitored.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
Display Item List
LKIA0183E
Item Description CONSULT-II Factory setting
BATTERY SAVER SETExterior lamp battery saver control mode can be changed
in this mode. Selects exterior lamp battery saver control
mode between ON/OFF.ON×
OFF —
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects and monitors individual signal.
Monitor item Contents
IGN ON SW “ON/OFF” Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.
ACC ON SW “ON/OFF” Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.
HI BEAM SW “ON/OFF”Displays status (high beam switch: ON/Others: OFF) of high beam switch judged from lighting
switch signal.
HEAD LAMP SW 1 “ON/OFF”Displays status (headlamp switch 1: ON/Others: OFF) of headlamp switch 2 judged from light-
ing switch signal.
HEAD LAMP SW 2 “ON/OFF”Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from light-
ing switch signal.
LIGHT SW 1ST “ON/OFF”Displays status (lighting switch 1st position: ON/Others: OFF) of lighting switch judged from
lighting switch signal.

LT-22
HEADLAMP (FOR USA)
Revision: August 20072004 QX56
4. Select the desired part to be diagnosed on the “SELECT DIAG
MODE” screen.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE ” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on the “SELECT MONITOR
ITEM" screen.
3. Touch “START”.
4. Touch the required monitoring item on “SELECTION FROM MENU”. In “ALL SIGNALS”, all items are
monitored. In “MAIN SIGNALS”, predetermined items are monitored.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
All Items, Main Items, Select Item Menu
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is at ACC, the dis-
play may not be correct.
ACTIVE TEST
Operation Procedure
1. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Touch "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
3. Touch item to be tested, and check operation.
4. Touch “START”.
5. Touch “STOP” while testing to stop the operation.
BCIA0031E
ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.
Item nameCONSULT-II
screen displayDisplay or
unitMonitor item selection
Description
ALL
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
Parking, license plate
and tail lamps requestTAIL&CLR REQ ON/OFF×× ×Signal status input from BCM
Headlamp low beam
requestHL LO REQ ON/OFF×× ×Signal status input from BCM
Headlamp high beam
requestHL HI REQ ON/OFF×× ×Signal status input from BCM
Daytime lights request DTRL REQ ON/OFF×–×Signal status input from BCM
Front fog lamps request FR FOG REQ ON/OFF×× ×Signal status input from BCM

HEADLAMP (FOR USA)
LT-23
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Headlamp HI Does Not Illuminate (Both Sides)EKS007A0
1. CHECK COMBINATION SWITCH INPUT SIGNAL
Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “HI BEAM SW” turns ON-OFF linked with operation of
lighting switch.
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT-100, "
Combination
Switch Inspection" .
2. HEADLAMP ACTIVE TEST
1. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST”
on “SELECT DIAG MODE” screen.
2. Select “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
3. Touch “HI” on "ACTIVE TEST" screen.
4. Make sure headlamp high beam operates.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-II, and select “DATA MONI-
TOR” on “SELECT DIAG MODE” screen.
2. Make sure “HL LO REQ” and “HL HI REQ” turns ON when light-
ing switch is in HIGH position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-29, "Removal and
Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-19, "
Removal and Installa-
tion of BCM" .
Test item CONSULT-II screen display Description
Headlamp relay (HI, LO) out-
put
EXTERNAL LAMPSAllows headlamp relay (HI, LO) to operate by switching operation
(OFF, HI, LO) at your option (Headlamp high beam repeats ON-OFF
every 1 second).
Front fog lamp relay (FOG)
outputAllows fog lamp relay (FOG) to operate by switching operation ON-
OFF at your option.
Tail lamp relay outputAllows tail lamp relay to operate by switching operation ON-OFF at
your option.
When lighting switch is in
HIGH position: HI BEAM SW ON
SKIA4193E
Headlamp high beam should operate.
WKIA1438E
When lighting switch is in
HIGH position: HL LO REQ ON
: HL HI REQ ON
SKIA5775E

LT-48
AUTO LIGHT SYSTEM
Revision: August 20072004 QX56
System DescriptionEKS007AP
Automatically turns on/off the parking lamps and the headlamps in accordance with ambient light.
Timing for when the lamps turn on/off can be selected using four modes.
OUTLINE
The auto light control system uses an optical sensor that detects outside brightness.
When the lighting switch is in “AUTO” position, it automatically turns on/off the parking lamps and the head-
lamps in accordance with the ambient light. Sensitivity can be adjusted in four steps. For the details of the set-
ting, refer to LT-55, "
SETTING CHANGE FUNCTIONS" .
Optical sensor ground is supplied

to optical sensor terminal 3

through BCM (body control module) terminal 18.
When ignition switch is turned to “ON” position and when outside brightness is darker than prescribed level,
input is supplied

to BCM terminal 58

through optical sensor terminal 4.
The headlamps will then illuminate. For a description of headlamp operation, refer to LT- 6 , "
System Descrip-
tion" .
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the AUTO position, and the ignition switch is turned from
ON or ACC to OFF, and one of the front doors is opened, the battery saver control feature is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
DELAY TIMER FUNCTION
When the ignition switch is ON and auto light switch is ON, the BCM turns on/off the headlamps. In delay timer
function, ignition is OFF, auto light sensor power source is OFF and the headlamps are not turned on/off by the
BCM. On condition that:

when the state of ignition switch ON or ACC is ON and output judgment by auto light function is headlamp
ON changes to ignition switch and ACC are OFF and any door switch is ON, output judgment by BCM
should be headlamp ON for 5 minutes by timer. After time out, output judgment by BCM should be head-
lamp OFF.

when the state of any door switch is turned to ON from OFF while 45 second or 5 minute timer is counting,
timer stops, and restarts counting for 5 minutes, then BCM judges output as headlamp ON. After time out,
BCM judges output as headlamp OFF.

when the state of front door switch (driver side), front door switch (passenger side), rear door switch LH,
rear door switch RH or back door latch (door ajar switch) is ON turns to all door switches are OFF while 45
second or 5 minute timer is counting, timer stops, and restarts counting for 45 seconds, then BCM judges
output as headlamp ON. After timer out, BCM judges output as headlamp OFF.

when the state is ignition switch ON or ACC is ON or auto light switch OFF while timer is counting, timer
stops counting and BCM turns on/off lamps according to headlamp function, front fog lamp function, auto
light function and headlamp battery save function.
Delay timer control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionEKS007AQ
Refer to LAN-5, "CAN COMMUNICATION" .
Major Components and FunctionsEKS007AR
Components Functions
BCM

Turns on/off circuits of tail light and headlamp according to signals from light sensor, lighting switch
(AUTO), driver door switch, passenger door switch, rear door switch, and ignition switch (ON,
OFF).
Optical sensor

Converts ambient light (lux) to voltage, and sends it to BCM. (Detects lightness of 50 to 1,300 lux)