2011 INFINITI QX56 Factory Service Manual

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Page 3321 of 5598

INFINITI QX56 2011 Factory Service Manual
INL-54
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000006216064
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
In

Page 3322 of 5598

INFINITI QX56 2011 Factory Service Manual
DIAGNOSIS AND REPAIR WORKFLOWINL-55
< BASIC INSPECTION >
C
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>> GO TO 2.
2.SYMPTOM CHECK
Check the symptom from the customers information.
>> GO TO 3.
3.BASIC INSPECTION

Page 3323 of 5598

INFINITI QX56 2011 Factory Service Manual
INL-56
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
DTC/CIRCUIT DIAGNOSIS
INTERIOR ROOM LAMP PO WER SUPPLY CIRCUIT
DescriptionINFOID:0000000006216065
Provides the interior room l

Page 3324 of 5598

INFINITI QX56 2011 Factory Service Manual
INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT
INL-57
< DTC/CIRCUIT DIAGNOSIS >
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YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK INTERIOR ROOM LAMP POWER SUPPLY OPEN CIRCUIT
1. Turn

Page 3325 of 5598

INFINITI QX56 2011 Factory Service Manual
INL-58
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
INTERIOR ROOM LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000006216068
Controls each interior room lamp (ground side) by PWM signal.

INL-58
< DTC/CIRCUIT DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL CIRCUIT
INTERIOR ROOM LAMP CONTROL CIRCUIT
DescriptionINFOID:0000000006216068
Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).
Component Function CheckINFOID:0000000006216069
CAUTION:
Before performing the diagnosis, check that the following are normal.
Interior room lamp power supply
Map lamp bulb
Personal lamp bulb
Foot lamp bulb
1.CHECK INTERIOR ROOM LAMP CONTROL FUNCTION
CONSULT-III ACTIVE TEST
1. Switch the map lamp switch and personal lamp switch to DOOR.
2. Turn ignition switch ON.
3. Select “INT LAMP” of BCM (INT LAMP) active test item.
4. With operating the test items, c heck that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).
Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?
YES >> Interior room lamp control circuit is normal.
NO >> Refer to INL-58, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006216070
1.CHECK INTERIOR ROOM LAMP CONTROL OUTPUT
CONSULT-III ACTIVE TEST
1. Switch the map lamp switch and personal lamp switch to DOOR.
2. Turn ignition switch OFF.
3. Remove all the bulbs of map lamp, foot lamp and personal lamp.
4. Turn ignition switch ON.
5. Select “INT LAMP” of BCM (INT LAMP) active test item.
6. With operating the test item, check c ontinuity between BCM harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM. Refer to BCS-81, "
Removal and Installation".
2.CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector, map lamp connector, personal lamp connector and foot lamp connector.
3. Check continuity between BCM harness connector and foot lamp harness connector.
On : Interior room lamp gradual brightening
Off : Interior room lamp gradual dimming
BCM
Ground Test item Continuity
Connector Terminal
M70 63 INT LAMP On Existed
Off Not existed
Revision: 2010 May2011 QX56

Page 3326 of 5598

INFINITI QX56 2011 Factory Service Manual
INTERIOR ROOM LAMP CONTROL CIRCUITINL-59
< DTC/CIRCUIT DIAGNOSIS >
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4. Check continuity between BCM harness connector and map lamp harness connector.
5. Check continui

Page 3327 of 5598

INFINITI QX56 2011 Factory Service Manual
INL-60
< DTC/CIRCUIT DIAGNOSIS >
LUGGAGE ROOM LAMP CIRCUIT
LUGGAGE ROOM LAMP CIRCUIT
DescriptionINFOID:0000000006216071
Controls the luggage room lamp and automatic back door close switch illuminatio

Page 3328 of 5598

INFINITI QX56 2011 Factory Service Manual
LUGGAGE ROOM LAMP CIRCUITINL-61
< DTC/CIRCUIT DIAGNOSIS >
C
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INL
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NO >> Repair or replace harnesses.
Revision: 2010 May2011 QX56

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