2004 INFINITI QX56 air condition

LT-86
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: August 20072004 QX56
How to Proceed With Trouble DiagnosisEKS007BN
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-80, "
System Description" .
3. Perform preliminary check. Refer to LT-87, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do turn signal and hazard warning lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
34 L Combination switch output 3 ONLighting, turn, wiper OFF
Wiper dial position 4
35 O/B Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/W Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 W CAN-H — — —
40 R CAN-L — — —
60 G/B Turn signal (left) ONCombina-
tion switchTu rn le ft O N
61 G/Y Turn signal (right) ONCombina-
tion switchTurn right ON
67 B Ground ON — 0V
70 W/B Battery power supply OFF — Battery voltage Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
SKIA5291E
SKIA5292E
SKIA3009J
SKIA3009J

LT-92
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: August 20072004 QX56
3. CHECK GROUND CIRCUIT
Check continuity between rear turn signal lamp harness connector
B35 LH and B105 RH terminal 3 (B) and ground.
OK or NG
OK >> Check rear turn signal lamp connector for proper con-
nection. Repair as necessary.
NG >> Repair harness or connector.
Hazard Warning Lamp Does Not Operate But Turn Signal Lamps OperateEKS007BS
1. CHECK BULB
Make sure bulb standard of each turn signal lamp is correct. Refer to LT-170, "
Exterior Lamp" .
OK or NG
OK >> GO TO 2.
NG >> Replace turn signal lamp bulb. Refer to LT- 9 4 , "
Bulb Replacement (Front Turn Signal Lamp)" for
front turn signal bulb. Refer to LT-122, "
Bulb Replacement (Turn Signal)" for rear turn signal bulb.
2. CHECK HAZARD SWITCH INPUT SIGNAL
With CONSULT-II
Select “BCM” on CONSULT-II. With “FLASHER” data monitor, make
sure “HAZARD SW” turns ON-OFF linked with operation of hazard
switch.
Without CONSULT-II
Check voltage between BCM harness connector M18 terminal 29
(W/B) and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-19, "Removal and Installa-
tion of BCM" .
NG >> GO TO 3.3 (B) - Ground : Continuity should exist.
WKIA1893E
When hazard switch is in
ON position : HAZARD SW ON
SKIA4500E
BCM
(–) ConditionVo ltag e
(Approx.) (+)
ConnectorTe r m i n a l
(wire color)
M18 29 (W/B) GroundHazard switch is ON 0V
Hazard switch is OFF 5V
WKIA1969E

TURN SIGNAL AND HAZARD WARNING LAMPS
LT-93
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Revision: August 20072004 QX56
3. CHECK HAZARD SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and hazard switch connector.
3. Check continuity between BCM harness connector M18 terminal
29 (W/B) and hazard switch harness connector M55 terminal 2
(W/B).
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK GROUND
Check continuity between hazard switch harness connector M55 ter-
minal 1 (B) and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK HAZARD SWITCH
1. Disconnect hazard switch connector.
2. Check continuity of hazard switch.
OK or NG
OK >> Replace BCM if turn signal lamps does not work after
setting the connector again. Refer to BCS-19, "
Removal
and Installation of BCM" .
NG >> Replace hazard switch. Refer to LT-96, "
Removal and Installation" .
Turn Signal Indicator Lamp Does Not OperateEKS007BT
1. CHECK CAN COMMUNICATION SYSTEM
Check CAN communication. Refer to LAN-5, "
CAN COMMUNICATION" .
OK or NG
OK >> Replace combination meter. Refer to IP-13, "Combination Meter" .
NG >> Repair as necessary.29 (W/B) - 2 (W/B) : Continuity should exist.
WKIA1894E
1 (B) - Ground : Continuity should exist.
WKIA1895E
Hazard switch
Condition Continuity
Te r m i n a l
12Hazard switch is ON Yes
Hazard switch is OFF No
WKIA1896E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-115
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Revision: August 20072004 QX56
Terminals and Reference Values for IPDM E/REKS007CJ
How to Proceed With Trouble DiagnosisEKS007CK
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 0 8 , "
System Description" .
3. Carry out the Preliminary Check. Refer to LT- 11 6 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Do the parking, license and tail lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
35 O/B Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 R/W Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 W CAN-H — — —
40 R CAN-L — — —
67 B Ground ON — 0V
70 W/B Battery power supply (fusible link) OFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
SKIA5292E
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
38 B Ground ON — 0V
39 W CAN-H — — —
40 R CAN-L — — —
57 R/LParking, license, and tail
lampONLighting switch
1ST positionOFF 0V
ON Battery voltage
59 B Ground ON — 0V

LT-142
INTERIOR ROOM LAMP
Revision: August 20072004 QX56
Terminals and Reference Values for BCMEKS007D1
How to Proceed With Trouble DiagnosisEKS007D2
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-130, "
System Description" .
3. Carry out the Preliminary Check. Refer to LT- 1 4 3 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the interior room lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
12 R/LFront door switch RH
signalOFFFront door switch
RHON (open) 0V
OFF (closed) Battery voltage
13 GRRear door switch RH
signalOFFRear door switch
RHON (open) 0V
OFF (closed) Battery voltage
22 W/VPower window switch
serial link——
37 B/RKey-in switch detec-
tion signalOFFVehicle key is removed. 0V
Vehicle key is inserted. Battery voltage
38 W/L Ignition power supply ON — Battery voltage
39 W CAN-H — — —
40 R CAN-L — — —
42 GRGlass hatch ajar
switch signalOFFGlass hatch ajar
switchON (open) 0V
OFF (closed) Battery voltage
43 R/BBack door latch (door
ajar switch) signalOFFBack door latch
(door ajar switch)ON (open) 0V
OFF (closed) Battery voltage
47 SBFront door switch LH
signalOFFFront door switch
LHON (open) 0V
OFF (closed) Battery voltage
48 R/YRear door switch LH
signalOFFRear door switch
LHON (open) 0V
OFF (closed) Battery voltage
56 R/GBattery saver output
signalOFF30 minutes after ignition switch is turned
to OFF0V
ON — Battery voltage
57 Y/R Battery power supply OFF — Battery voltage
62 R/W Step lamp signal OFFAny door is open (ON) 0V
All doors are closed (OFF) Battery voltage
63 LInterior room/map
lamp signalOFFEach interior lamp
switch in DOOR
positionAny door
switchON
(open)0V
OFF
(closed)Battery voltage
67 B Ground ON — 0V
70 W/B Battery power supply OFF — Battery voltage
PIIA2344J

LT-154
ILLUMINATION
Revision: August 20072004 QX56

to power liftgate switch terminal 4

to front room/map lamp assembly (console box illumination) terminal 8

to AV switch terminal 4

to hazard switch terminal 4

to audio unit terminal 7

to rear sonar system OFF switch terminal 4

to 4WD switch terminal 8 (with 4-wheel drive)

to front air control terminal 24 and

to rear power vent window switch terminal 6

to DVD player terminal 10 (with DVD entertainment system)

to pedal adjusting switch terminal 6

to A/T device terminal 12

to front heated seat switches terminal 6

to VDC OFF switch terminal 4

to tow mode switch terminal 4

to headlamp aiming switch terminal 4

to clock terminal 4 and

to combination meter terminal 18.
Ground is supplied

to illumination control switch terminal 3

to glove box lamp terminal –

to display control unit terminal 3

to rear heated seat switches terminal 6

to electric brake (pre-wiring) terminal 1 and

to compass and thermometer terminal 7

through grounds M57, M61 and M79, and

to NAVI control unit terminal 30

to rear air control terminal 3 and

to rear audio remote control unit terminal 15

through grounds B117 and B132.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, the illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionEKS007DB
Refer to LAN-5, "CAN COMMUNICATION" .

MA-4
GENERAL MAINTENANCE
Revision: August 20072004 QX56
GENERAL MAINTENANCEPFP:00000
General MaintenanceELS000ZZ
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have their NISSAN dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.ItemReference page
TiresCheck the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear.—
Wheel lug nutsWhen checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary.WT-6, "
Rotation"
WindshieldClean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary.
Tire rotationTires should be rotated every 12,000 km (7,500 miles).WT-6, "
Rotation"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed.WT-5, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
bladesCheck for cracks or wear if they do not wipe properly.
—
Doors and engine
hoodCheck that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the pri-
mary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently.MA-30, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis.LT- 3 1 , "Aiming Adjust-
ment" for US, LT- 4 6 ,
"Aiming Adjustment" f o r
Canada
ItemReference page
Warning lamps and
buzzers/chimesMake sure that all warning lamps and buzzers/chimes are operating properly.DI-25, "
Electrical Com-
ponents Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.—
Steering wheelCheck that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises.PS-7, "
CHECKING
STEERING WHEEL
PLAY"
SeatsCheck seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every
position. Check that the head restraints move up and down smoothly and that
the locks (if equipped) hold securely in all latched positions. Check that the
latches lock securely for folding-down rear seat backs.—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage.SB-10, "
Seat Belt
Inspection", MA-31,
"Checking Seat Belts,
Buckles, Retractors,
Anchors and Adjusters"
Accelerator pedalCheck the pedal for smooth operation. Keep the floor mats away from the pedal. —

GENERAL MAINTENANCE
MA-5
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Revision: August 20072004 QX56
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).BrakesCheck that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
boosterCheck the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Keep the floor
mats away from the pedal.BR-6, "
Inspection and
Adjustment", BR-17,
"On-Vehicle Service"
Parking brakeCheck that the parking brake control has the proper travel and make sure that
the vehicle is held securely on a fairly steep hill when only the parking brake is
applied.PB-3, "On-Vehicle Ser-
vice"
Automatic transmis-
sion “Park” mecha-
nismOn a fairly steep hill check that the vehicle is held securely with the selector
lever in the P position without applying the brakes. — ItemReference page
ItemReference page
Windshield washer
fluidCheck that there is adequate fluid in the tank.
—
Engine coolant levelCheck the coolant level when the engine is cold.MA-12
Radiator and hosesCheck the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation,
deterioration or loose connections.—
Brake fluid levelMake sure that the brake fluid level is between the “MAX” and “MIN” lines on the
reservoirsMA-27
BatteryCheck the fluid level in each cell. It should be between the “MAX” and “MIN”
lines. Vehicles operated in high temperatures or under severe conditions require
frequent checks of the battery fluid level.—
Engine drive beltMake sure that no belt is frayed, worn, cracked or oily.MA-12
Engine oil levelCheck the level on the dipstick after parking the vehicle on a level spot and turn-
ing off the engine.MA-16
Power steering fluid
level and linesCheck the level on the reservoir with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.MA-29
Automatic transmis-
sion fluid levelCheck the level on the dipstick after putting the selector lever in “P” with the
engine idling.MA-21
Exhaust systemMake sure there are no loose supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it.MA-21
UnderbodyThe underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate.—
Fluid leaksCheck under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately.—