INFINITI QX56 2011 Factory Service Manual

TURN SIGNAL LAMP CIRCUITEXL-101
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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Rear turn signal lamp
Is the inspection result normal?
YES >> Check corresponding bulb socket and harness. Repair or replace if necessary.
NO >> Repair or replace harness.
Rear combination lamp GroundContinuity
Connector Terminal
LH B60 4 Existed
RH B232
Revision: 2010 May2011 QX56

EXL-102
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
OPTICAL SENSOR
OPTICAL SENSOR
Component Function CheckINFOID:0000000006213969
1.CHECK OPTICAL SENSOR SI
GNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “OPTISEN (DTCT)” of BCM (HEADLAMP) data monitor item.
3. Turn lighting switch 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 inspection result normal?
YES >> Optical sensor is normal.
NO >> Refer to EXL-102, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213970
1.CHECK OPTICAL SENSOR POWER SUPPLY INPUT
1. Turn ignition switch ON.
2. Turn lighting switch AUTO.
3. Check voltage between optical sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK OPTICAL SENSOR GROUND INPUT
Check voltage between optical sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 6.
3.CHECK OPTICAL SENSOR SIGNAL OUTPUT
With illuminating the optical sensor, check vo ltage between optical sensor harness connector and ground.
Monitor item Condition Voltage (Approx.)
OPTISEN (DTCT) Optical sensor When illuminating 3.1 V or more *
When shutting off light 0.6 V or less
(+)
(− ) Vo l ta g e
(Approx.)
Optical sensor
Connector Terminal M17 1 Ground 5 V
(+) (− ) Vo l ta g e
(Approx.)
Optical sensor
Connector Terminal M17 3 Ground 0 V
Revision: 2010 May2011 QX56

OPTICAL SENSOREXL-103
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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*: Illuminate the optical sensor. The value may be less than the standard if brightness is weak.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace the optical sensor.
4.CHECK OPTICAL SENSOR OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect optical sensor connector and BCM connector.
3. Check continuity between optical sensor harness connector and BCM harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
5.CHECK OPTICAL SENSOR SHORT CIRCUIT
Check continuity between optical sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
6.CHECK OPTICAL SENSOR GROUND OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect optical sensor connector and BCM connector.
3. Check continuity between optical sensor harness connector and BCM harness connector.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
7.CHECK OPTICAL SENSOR SIGNAL OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect optical sensor connector and BCM connector.
3. Check continuity between optical sensor harness connector and BCM harness connector.
(+)
(− ) Condition Vo l ta g e
(Approx.)
Optical sensor
Connector Terminal
M17 2 Ground Optical sensor When illuminating 3.1 V or more *
When shutting off light 0.6 V or less
Optical sensor BCM
Continuity
Connector Terminal Connector Terminal
M17 1 M68 17 Existed
Optical sensor GroundContinuity
Connector Terminal
M17 1 Not existed
Optical sensor BCM Continuity
Connector Terminal Connector Terminal
M17 3 M68 18 Existed
Revision: 2010 May2011 QX56

EXL-104
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
OPTICAL SENSOR
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace harness.
8.CHECK OPTICAL SENSOR SHORT CIRCUIT
Check continuity between optical sensor harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
Optical sensor BCM Continuity
Connector Terminal Connector Terminal
M17 2 M68 14 Existed
Optical sensor GroundContinuity
Connector Terminal
M17 2 Not existed
Revision: 2010 May2011 QX56

HAZARD SWITCHEXL-105
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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HAZARD SWITCH
Component Function CheckINFOID:0000000006213971
1.CHECK HAZARD SWITCH SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “HAZARD SW” of BCM (FLASHER) data monitor item.
3. With operating the hazard switch, check the monitor status.
Is the inspection result normal?
YES >> Hazard switch circuit is normal.
NO >> Refer to EXL-105, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213972
1.CHECK HAZARD SWITCH SIGNAL INPUT
1. Turn ignition switch OFF.
2. Disconnect hazard switch connector.
3. Check voltage between hazard switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between hazard switch harness connector and BCM harness connector.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT
Check continuity between hazard switch harness connector and ground.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-81, "Removal and Installation".
NO >> Repair or replace harness.
Monitor item Condition Monitor status
HAZARD SW Hazard switch ON On
OFF Off
(+)
(− ) Vo l ta g e
(Approx.)
Hazard switch
Connector Terminal M45 2 Ground 12 V
Hazard switch BCM Continuity
Connector Terminal Connector Terminal
M45 2 M68 29 Existed
Hazard switch GroundContinuity
Connector Terminal
M45 2 Not existed
Revision: 2010 May2011 QX56

EXL-106
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
HAZARD SWITCH
4.CHECK HAZARD SWITCH
GROUND OPEN CIRCUIT
Check continuity between hazard switch harness connector and ground.
Is the inspection result normal?
YES >> Replace hazard switch.
NO >> Repair or replace harness.
Hazard switch
GroundContinuity
Connector Terminal
M45 1 Existed
Revision: 2010 May2011 QX56

AFS SWITCHEXL-107
< DTC/CIRCUIT DIAGNOSIS > [XENON TYPE]
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AFS SWITCH
Component Function CheckINFOID:0000000006213973
1.CHECK AFS SWITCH SIGNAL BY CONSULT-III
CONSULT-III DATA MONITOR
1. Turn ignition switch ON.
2. Select “AFS SW” of ADAPTIVE LIGHT data monitor item.
3. With operating the AFS switch , check the monitor status.
Is the inspection result normal?
YES >> AFS switch circuit is normal.
NO >> Refer to EXL-107, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006213974
1.CHECK AFS SWITCH FUSE
1. Turn ignition switch OFF.
2. Check that the following fuses is not fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the applicable. And then replace the fuse.
2.CHECK POWER SUPPLY CIRCUIT
1. Disconnect triple switch connector.
2. Check voltage between triple switch harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness.
3.CHECK AFS SWITCH CIRCUIT
1. Disconnect AFS control unit connector.
2. Check continuity between AFS control unit har ness connector and triple switch harness connector.
3. Check continuity between AFS control unit harness connector and ground.
Monitor item Condition Monitor status
AFS SW AFS switch ON On
OFF Off
Location Fuse No. Capacity
Fuse block (J/B) #3 10 A
(+) (–)Voltage (V)
(Approx.)
Triple switch
Connector Terminal M126 3 Ground Battery voltage
AFS control unit Triple switch Continuity
Connector Terminal Connector Terminal
M1353M1264Existed
AFS control unit GroundContinuity
Connector Terminal
M135 3 Not existed
Revision: 2010 May2011 QX56

EXL-108
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
AFS SWITCH
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness.
4.CHECK AFS SWITCH
Refer to EXL-108, "
Component Inspection".
Is the inspection result normal?
YES >> Replace AFS control unit. Refer to EXL-135, "Removal and Installation".
NO >> Replace AFS switch.
Component InspectionINFOID:0000000006213975
1.CHECK AFS SWITCH
1. Turn ignition switch OFF.
2. Disconnect triple switch connector.
3. Check continuity between triple switch terminals.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace AFS switch.
Triple switch Condition Continuity
Te r m i n a l
3 4 AFS switch Pressed Existed
Released Not existed
Revision: 2010 May2011 QX56

TAIL LAMP CIRCUITEXL-109
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TAIL LAMP CIRCUIT
BODY SIDE
BODY SIDE : Component Function CheckINFOID:0000000006213976
1.CHECK TAIL LAMP OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the test items, chec k that the tail lamp is turned ON.
Is the inspection result normal?
YES >> Tail lamp circuit is normal.
NO >> Refer to EXL-109, "
BODY SIDE : Diagnosis Procedure".
BODY SIDE : Diagnosis ProcedureINFOID:0000000006213977
1.CHECK TAIL LAMP FUSE
1. Turn ignition switch OFF.
2. Check that the following fuses are not fusing.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the malfunctioning part before replacing the fuse.
2.CHECK TAIL LAMP OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Disconnect rear combination lamp connector.
2. Turn ignition switch ON.
3. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
4. With operating the test items, check vo ltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK TAIL LAMP OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- IPDM E/R
- Front combination lamp
- Rear combination lamp TAIL : Tail Lamp ON
Off : Tail lamp OFF
Unit Location Fuse No. Capacity
Tail lamp IPDM E/R #46
10 A
#47
(+)
(− )Test item Vo l ta g e
(Approx.)
IPDM E/R
Connector Terminal
E14 38
GroundEXTERNAL
LAMPS TAIL Battery voltage
Off 0 V
44 TAIL Battery voltage
Off 0 V
Revision: 2010 May2011 QX56

EXL-110
< DTC/CIRCUIT DIAGNOSIS >[XENON TYPE]
TAIL LAMP CIRCUIT
- Tail lamp (back door side)
- License plate lamp
3. Check continuity between IPDM E/R harness connec
tor and rear combination lamp harness connector.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness.
4.CHECK TAIL LAMP SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- IPDM E/R
- Front combination lamp
- Rear combination lamp
- Tail lamp (back door side)
- License plate lamp
3. Check continuity between IP DM E/R harness connector and ground.
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness.
5.CHECK TAIL LAMP GROUND OPEN CIRCUIT
Check continuity between rear combination lamp harness connector and ground.
Is the inspection result normal?
YES >> Replace rear combination lamp.
NO >> Repair or replace harness.
BACK DOOR SIDE
BACK DOOR SIDE : Co mponent Function CheckINFOID:0000000006238402
1.CHECK TAIL LAMP (BODY SIDE) OPERATION
Check that the tail lamp (body side) is turned ON.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EXL-109, "
BODY SIDE : Component Function Check".
2.CHECK TAIL LAMP (BACK DOOR SIDE) OPERATION
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the lighting switch, check that the tail lamp (back door side) is turned ON.
IPDM E/R Rear combination lamp
Continuity
Connector Terminal Connector Terminal
RH E1438 B232
1 Existed
LH 44 B60
IPDM E/R
GroundContinuity
Connector Terminal
RH E1438
Not existed
LH 44
Rear combination lamp
GroundContinuity
Connector Terminal
RH B232 4 Existed
LH B60
Revision: 2010 May2011 QX56