2007 INFINITI QX56 light

FRONT FOG LAMP
LT-53
< SERVICE INFORMATION >
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How to Proceed with Trouble DiagnosisINFOID:0000000003533394
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT-49, "
System Description" .
3. Perform the Preliminary Check. Refer toLT-53, "
Preliminary Check" .
4. Check symptom and repair or replace the component.
5. Does the front fog lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckINFOID:0000000003533395
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection" .
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to PG-26, "IPDM E/R Power/Ground Circuit Inspection" .
CONSULT-II Function for BCMINFOID:0000000003533396
Refer to BCS-16, "CONSULT-II Function (BCM)" .
CONSULT-II Function for IPDM E/RINFOID:0000000003533397
Refer to PG-18, "CONSULT-II Function (IPDM E/R)" .
Front Fog Lamps Do Not Illuminate (Both Sides)INFOID:0000000003533398
1.CHECK FUSE
Inspect 20A fuse (No. 56, located in the IPDM E/R).
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor,
make sure "FR FOG SW" turns ON-OFF linked with operation of
lighting switch.
OK or NG
OK >> GO TO 3.
NG >> Check lighting switch. Refer to LT-73, "
Combination
Switch Inspection".
3.FOG LAMP 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 "FOG" on "ACTIVE TEST" screen.
4. Make sure fog lamps operate.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.When lighting switch is in
FOG position: FR FOG SW ON
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Fog lamps should operate.
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LT-54
< SERVICE INFORMATION >
FRONT FOG LAMP
4.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 "FR FOG REQ" turns ON when lighting switch is in
FOG position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R".
NG >> Replace BCM. Refer to BCS-24, "
BCM".
5.IPDM E/R INSPECTION
1. Disconnect front turn/fog lamp connectors
2. Start auto active test. Refer to PG-20, "
Auto Active Test". When
front fog lamp relay is operating, check voltage between left/right
front turn/fog lamp connector terminal and ground.
OK or NG
OK >> Check front fog lamp bulbs and replace as necessary.
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R".
Front Fog Lamp Does Not Illuminate (One Side)INFOID:0000000003533399
1.BULB INSPECTION
Inspect bulbs of lamps which do not illuminate.
OK or NG
OK >> GO TO 2.
NG >> Replace lamp bulb. Refer to LT-55, "
Bulb Replacement".
2.INSPECTION BETWEEN IPDM E/R AND FRONT FOG LAMPS
1. Disconnect IPDM E/R connector and inoperative front fog lamp connector.
2. Check continuity between harness connector terminals of IPDM
E/R and harness connector terminal of front turn/fog lamps.
OK or NG
OK >> Check ground circuit. If OK, replace IPDM E/R. Refer to
PG-28, "
Removal and Installation of IPDM E/R". If NG,
repair harness or connector.
NG >> Check for short circuits and open circuits in harness between IPDM E/R and front turn/fog lamps. When lighting switch is in
FOG position: FR FOG REQ ON
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Front turn/fog lamp (+)
(–)Vo l ta g e
(Approx.) Connec-
torTe r m i n a l
LH E101 1
Ground Battery voltage
RH E102 1
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IPDM E/R Front turn/fog lamp Continuity
Connector Terminal Connector Terminal
E12350 LH E101 1
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51 RH E102 1
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LT-64
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
3. Perform preliminary check. Refer to LT-64, "Preliminary Check" .
4. Check symptom and repair or replace the component.
5. Do turn signal and hazard warning lamps operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. Inspection End.
Preliminary CheckINFOID:0000000003533410
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
CONSULT-II Function (BCM)INFOID:0000000003533411
Refer to BCS-16, "CONSULT-II Function (BCM)".
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure".
DATA MONITOR
Display Item List
ACTIVE TEST
Display Item List
Front Turn Signal Lamp Does Not OperateINFOID:0000000003533412
1.CHECK COMBINATION SWITCH INPUT SIGNAL
With CONSULT-II
Select "BCM" on CONSULT-II. With "FLASHER" data monitor, make
sure "TURN SIGNAL R" and "TURN SIGNAL L" turns ON-OFF
linked with operation of lighting switch.
Without CONSULT-II
Refer to LT-73, "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT-73, "
Combination Switch Inspection".
2.ACTIVE TEST
With CONSULT-II
Monitor item Contents
IGN ON SW "ON/OFF" Displays "IGN position (ON)/OFF, ACC position (OFF)" judged from the ignition switch signal.
HAZARD SW "ON/OFF" Displays "Hazard ON (ON)/Hazard OFF (OFF)" status, determined from hazard switch signal.
TURN SIGNAL R "ON/OFF" Displays "Turn right (ON)/Other (OFF)" status, determined from lighting switch signal.
TURN SIGNAL L "ON/OFF" Displays "Turn left (ON)/Other (OFF)" status, determined from lighting switch signal.
BRAKE SW "ON/OFF" Displays status of stop lamp switch.
Test item Description
FLASHER (RH) Turn signal lamp (right) can be operated by any ON-OFF operations.
FLASHER (LH) Turn signal lamp (left) can be operated by any ON-OFF operations.
When lighting switch is in
TURN RH position: TURN SIGNAL R ON
When lighting switch is in
TURN LH position: TURN SIGNAL L ON
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LT-66
< SERVICE INFORMATION >
TURN SIGNAL AND HAZARD WARNING LAMPS
Select "BCM" on CONSULT-II. With "FLASHER" data monitor, make
sure "TURN SIGNAL R" and "TURN SIGNAL L" turns ON-OFF
linked with operation of lighting switch.
Without CONSULT-II
Refer to LT-73, "
Combination Switch Inspection".
OK or NG
OK >> GO TO 2.
NG >> Check lighting switch. Refer to LT-73, "
Combination Switch Inspection".
2.ACTIVE TEST
With CONSULT-II
1. Select "FLASHER" during active test. Refer to LT-64, "
CON-
SULT-II Function (BCM)".
2. Make sure "FLASHER RH" and "FLASHER LH" operate.
Without CONSULT-II
GO TO 3.
OK or NG
OK >> Replace BCM. Refer to BCS-24, "BCM".
NG >> GO TO 3.
3.CHECK TURN SIGNAL LAMPS CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector and door mirror LH/RH connector.
3. Check continuity between BCM harness connector M20 (A) ter-
minal 60 (LH), 61 (RH) and door mirror harness connector (LH
D4), (RH D107) (B) terminal 15.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4.CHECK GROUND
1. Check continuity between door mirror harness connector (LH
D4), (RH D107) terminal 11 and ground.
OK or NG
OK >> Replace door mirror turn signal.
NG >> Repair harness or connector.
Rear Turn Signal Lamp Does Not OperateINFOID:0000000003533414
1.CHECK BULB
Check bulb standard of each turn signal lamp is correct. Refer to LT-138, "
Exterior Lamp" . When lighting switch is in
TURN RH position: TURN SIGNAL R ON
When lighting switch is in
TURN LH position: TURN SIGNAL L ON
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60, 61 - 15 : Continuity should exist.
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11 - Ground : Continuity should exist.
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LT-70
< SERVICE INFORMATION >
LIGHTING AND TURN SIGNAL SWITCH
LIGHTING AND TURN SIGNAL SWITCH
Removal and InstallationINFOID:0000000003533419
Removal
1. Remove steering column cover.
2. While pressing tabs, pull lighting and turn signal switch toward
driver door and disconnect from the base.
Installation
Installation is in the reverse order of removal.
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COMBINATION SWITCH
LT-73
< SERVICE INFORMATION >
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CONSULT-II Function (BCM)INFOID:0000000003533423
Refer to BCS-16, "CONSULT-II Function (BCM)" .
CONSULT-II START PROCEDURE
Refer to GI-36, "CONSULT-II Start Procedure" .
DATA MONITOR
Display Item List
Combination Switch InspectionINFOID:0000000003533424
1.SYSTEM CHECK
1. Referring to table below, check which system the malfunctioning switch belongs.
>> GO TO 2.
2.SYSTEM CHECK
With CONSULT-II
CAUTION:
Monitor item name
"OPERATION OR UNIT"Contents
TURN SIGNAL R "ON/OFF" Displays "Turn Right (ON)/Other (OFF)" status, determined from lighting switch signal.
TURN SIGNAL L "ON/OFF" Displays "Turn Left (ON)/Other (OFF)" status, determined from lighting 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 "Headlamp switch 1 (ON)/Other (OFF)" status, determined from lighting switch signal.
HEAD LAMP SW 2 "ON/OFF"Displays status (headlamp switch 2: ON/Others: OFF) of headlamp switch 2 judged from lighting
switch signal.
LIGHT SW 1ST "ON/OFF"Displays status (lighting switch 1st position: ON/Others: OFF) of lighting switch judged from lighting
switch signal.
PASSING SW "ON/OFF"Displays status (flash-to-pass switch: ON/Others: OFF) of flash-to-pass switch judged from lighting
switch signal.
AUTO LIGHT SW "ON/OFF" Displays "Auto light switch (ON)/Other (OFF)" status, determined from lighting switch signal.
FR FOG SW "ON/OFF" Displays "Front fog lamp switch (ON)/Other (OFF)" status, determined from lighting switch signal.
FR WIPER HI "ON/OFF" Displays "Front Wiper HI (ON)/Other (OFF)" status, determined from wiper switch signal.
FR WIPER LOW "ON/OFF" Displays "Front Wiper LOW (ON)/Other (OFF)" status, determined from wiper switch signal.
FR WIPER INT "ON/OFF" Displays "Front Wiper INT (ON)/Other (OFF)" status, determined from wiper switch signal.
FR WASHER SW "ON/OFF" Displays "Front Washer Switch (ON)/Other (OFF)" status, determined from wiper switch signal.
INT VOLUME [1 - 7] Displays intermittent operation knob setting (1 - 7), determined from wiper switch signal.
RR WIPER ON "ON/OFF" Displays "Rear Wiper (ON)/(OFF)" status, determined from wiper switch signal.
RR WIPER INT "ON/OFF" Displays "Rear Wiper INT (ON)/(OFF)" status, determined from wiper switch signal.
RR WASHER SW "ON/OFF" Displays "Rear Washer (ON)/(OFF)" status, determined from wiper switch signal.
System 1 System 2 System 3 System 4 System 5
— FR WASHER FR WIPER LO TURN LH TURN RH
FR WIPER HI — FR WIPER INT PASSING HEAD LAMP1
INT VOLUME 1 RR WASHER — HEAD LAMP2 HI BEAM
RR WIPER INT INT VOLUME 3 AUTO LIGHT — TAIL LAMP
INT VOLUME 2 RR WIPER ON — FR FOG —

LT-74
< SERVICE INFORMATION >
COMBINATION SWITCH
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. Connect CONSULT-II, and select "COMB SW" on "SELECT
TEST ITEM" screen.
2. Select "DATA MONITOR".
3. Select "START", and confirm that other switches in malfunction-
ing system operate normally.
Example: When auto light switch is malfunctioning, confirm that
"FRONT WIPER LOW" and "FRONT WIPER INT" in System 3,
to which the auto light switch belongs, turn ON-OFF normally.
Without CONSULT-II
Operate combination switch, and confirm that other switches in malfunctioning system operate normally.
Example: When auto light switch is malfunctioning, confirm that "FRONT WIPER LOW" and "FRONT WIPER
INT" in System 3, to which the auto light switch belongs, operate normally.
Check results
Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch.
Other switches in malfunctioning system do not operate normally.>>GO TO 3.
3.HARNESS INSPECTION
1. Turn ignition switch OFF.
2. Disconnect BCM and combination switch connectors.
3. Check for continuity between BCM harness connector of the suspect system and the corresponding com-
bination switch connector terminals.
4. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system
and ground.
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Sus-
pect
systemTe r m i n a l s
Continuity BCM Combination switch
Connector Terminal Connector Terminal
1
M18Input 1 6
M286
Ye s Output 1 36 1
2Input 2 5 7
Output 2 35 2
3Input 3 4 10
Output 3 34 3
4Input 4 3 9
Output 4 33 4
5Input 5 2 8
Output 5 32 5
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COMBINATION SWITCH
LT-75
< SERVICE INFORMATION >
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OK or NG
OK >> GO TO 4.
NG >> Check harness between BCM and combination switch for open or short circuit.
4.BCM OUTPUT TERMINAL INSPECTION
1. Turn lighting switch and wiper switch to OFF.
2. Set wiper dial to position 4.
3. Connect BCM and combination switch connectors.
4. Turn ignition switch on.
5. Check BCM output terminal voltage waveform of suspect mal-
functioning system.
OK or NG
OK >> Open circuit in combination switch, GO TO 5.
NG >> Replace BCM. Refer to BCS-24, "
BCM" .
5.COMBINATION SWITCH INSPECTION
Referring to table below, perform combination switch inspection.
Suspect
systemTe r m i n a l s
Continuity BCM
Connector Terminal
1
M18Input 1 6
Ground No Output 1 36
2Input 2 5
Output 2 35
3Input 3 4
Output 3 34
4Input 4 3
Output 4 33
5Input 5 2
Output 5 32
Suspect systemTe r m i n a l s
Combination switch (+)
Connector Terminal
1
M28Input 1 1
2 Input 2 2
3 Input 3 3
4 Input 4 4
5 Input 5 5
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