Infiniti QX56 (Z62). Manual - part 832

INL-58

< DTC/CIRCUIT DIAGNOSIS >

INTERIOR ROOM LAMP CONTROL CIRCUIT

INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID: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 Check

INFOID: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, check 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 Procedure

INFOID: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 continuity 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

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-59

< DTC/CIRCUIT DIAGNOSIS >

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4.

Check continuity between BCM harness connector and map lamp harness connector.

5.

Check continuity between personal lamp harness connector and map lamp harness connector.

Is the inspection result normal?

YES

>> Replace map lamp, personal lamp or foot lamp.

NO

>> Repair or replace harnesses.

3.

CHECK INTERIOR ROOM LAMP CONTROL SHORT 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 ground.

4.

Check continuity between personal lamp harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

NO

>> Repair or replace harnesses.

BCM

Foot lamp

Continuity

Connector

Terminal

Connector

Terminal

M70

63

Driver side

M89

2

Existed

Passenger side

M90

1

Rear LH

B479

66

Rear RH

B480

BCM

Map lamp

Continuity

Connector

Terminal

Connector

Terminal

M70

63

R18

7

Existed

Personal lamp

Map lamp

Continuity

Connector

Terminal

Connector

Terminal

R21

2

R18

5

Existed

BCM

Ground

Continuity

Connector

Terminal

M70

63

Not existed

Personal lamp

Ground

Continuity

Connector

Terminal

R21

2

Not existed

INL-60

< DTC/CIRCUIT DIAGNOSIS >

LUGGAGE ROOM LAMP CIRCUIT

LUGGAGE ROOM LAMP CIRCUIT

Description

INFOID:0000000006216071

Controls the luggage room lamp and automatic back door close switch illumination (ground side) to turn the
luggage room lamp and automatic back door close switch illumination ON and OFF.

Diagnosis Procedure

INFOID:0000000006216072

CAUTION:

 Before performing the diagnosis, check that the following are normal.
• Interior room lamp power supply
• Luggage room lamp bulb

1.

CHECK LUGGAGE ROOM LAMP OUTPUT

1.

Turn ignition switch OFF.

2.

Remove the luggage room bulb.

3.

Disconnect automatic back door close switch connector.

4.

Check continuity 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 LUGGAGE ROOM LAMP OPEN CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and luggage room lamp harness connector.

3.

Check continuity between BCM harness connector and automatic back door close switch harness con-
nector.

Is the inspection result normal?

YES

>> Replace luggage room lamp or automatic back door close switch.

NO

>> Repair or replace harnesses.

3.

CHECK LUGGAGE ROOM LAMP SHORT CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

BCM

Ground

Condition

Continuity

Connector

Terminal

M69

49

Back door

Open

Existed

Closed

Not existed

BCM

Luggage room lamp

Continuity

Connector

Terminal

Connector

Terminal

M69

49

B11

1

Existed

BCM

Automatic back door close switch

Continuity

Connector

Terminal

Connector

Terminal

M69

49

D158

4

Existed

BCM

Ground

Continuity

Connector

Terminal

M69

49

Not existed

LUGGAGE ROOM LAMP CIRCUIT

INL-61

< DTC/CIRCUIT DIAGNOSIS >

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NO

>> Repair or replace harnesses.