2008 INFINITI QX56 turn signal

TURN SIGNAL LAMP CIRCUITEXL-39
< COMPONENT DIAGNOSIS >
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1. Check continuity between the front turn/fog lamp harness con- nectors and ground.
2. Check continuity between the rear combination lamp harnness connectors and ground.
3. Check continuity between the door mirrors and ground.
Are continuity test results as specified?
YES >> Replace the malfunctioning lamp.
NO >> Repair the harnesses or connectors.
Connector Terminal— Continuity
Front LH E11
3Ground Yes
Front RH E107
ALLIA0721GB
Connector Terminal— Continuity
Rear LH B35
6Ground Yes
Rear RH B105
WKIA4775E
Connector Terminal— Continuity
Door mirror RH D107 11Ground Yes
Door mirror LH D4
WKIA4525E
Revision: March 2010 2008 QX56

EXL-40
< COMPONENT DIAGNOSIS >
OPTICAL SENSOR
OPTICAL SENSOR
DescriptionINFOID:0000000001547140
The optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to
the BCM.
Component Function CheckINFOID:0000000001547141
1.CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III
CONSULT-III
1. Turn the ignition switch ON.
2. Select "OPTICAL SENSOR" of BCM (HEAD LAMP) DATA MONITOR item.
3. Turn the lighting switch to AUTO.
4. With the optical sensor illuminating, check the monitor status.
*: Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.
Is the item status normal?
YES >> Optical sensor is normal.
NO >> Refer to EXL-40, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001547142
1.CHECK OPTICAL SENSOR GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect BCM connector M18 and optical sensor connector M302.
3. Check continuity between BCM harness connector M18 (A) ter-
minal 18 and optical sensor harness connector M302 (B) termi-
nal 3.
4. Check continuity between BCM harness connector M18 (A) ter- minal 18 and ground.
Are continuity test results as specified?
YES >> GO TO 2
NO >> Repair harness or connector.
2.CHECK OPTICAL SENSOR SIGNAL CIRCUIT
Monitor item ConditionVoltage
OPTICAL SENSOR When illuminating
3.1V or more *
When shutting off light 0.6V or less
AB
Connector Terminal Connector Terminal Continuity M18 18M302 3Yes
A —Continuity
Connector Terminal
M18 18Ground No
ALLIA0406GB
Revision: March 2010 2008 QX56

EXL-68
< COMPONENT DIAGNOSIS >
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
Wiring DiagramINFOID:0000000001547147
AALWA0088GB
Revision: March 2010 2008 QX56

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEMEXL-69
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ALLIA0519GB
Revision: March 2010 2008 QX56

EXL-70
< COMPONENT DIAGNOSIS >
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
AALIA0190GB
Revision: March 20102008 QX56

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEMEXL-71
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AALIA0191GB
Revision: March 2010 2008 QX56

EXL-72
< COMPONENT DIAGNOSIS >
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
AALIA0192GB
Revision: March 20102008 QX56

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEMEXL-73
< COMPONENT DIAGNOSIS >
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AWLIA0163GB
Revision: March 2010 2008 QX56