Interior Room Lamp Control Circuit

INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

Controls the room lamp control circuit (ground side) to turn the room lamps ON and OFF.


Component Function Check


CAUTION:
Before performing the diagnosis, check that the following are normal.
- Battery saver output/power supply
- Front room/map lamp bulb
- Personal lamp bulb
- Cargo lamp bulb

1. CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT
1.Set the front room/map lamp switch, personal lamp switch and cargo lamp switch to DOOR.
2.Turn ignition switch ON.
3.Select INT LAMP of BCM (INT LAMP) active test item.
4.While operating the test item, check that each interior room lamp turn ON/OFF.
On: Interior room lamp On


Off: Interior room lamp Off
Does the interior room lamp turn ON/OFF?
YES- Interior room lamp control circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Interior Room Lamp Control System.

1. CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT
1.Turn ignition switch ON.
2.Select INT LAMP of BCM (INT LAMP) active test item.
3. While operating the test item, check voltage between BCM harness connector M81 terminal 136 and ground.





Is the inspection result normal?
YES- Interior room lamp control circuit is operating normally.
Fixed ON-GO TO 3.
Fixed OFF-GO TO 2.

2. CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM harness connector M81, front room/map lamp harness connector R107 and cargo lamp harness connector R104.
3.Check continuity between BCM harness connector M81 terminal 136 and front room/map lamp assembly harness connector R107 terminal 7 and cargo lamp harness connector R104 terminal 3.
Revision: March 20122013 Infiniti JX





4.Reconnect the front room/map lamp assembly harness connector.
5.Check continuity between BCM harness connector M81 terminal 136 and personal lamps 2nd row harness connector R106 terminal 3.





Is the inspection result normal?
YES- Check interior room lamps for an open. If NG, replace lamp in question. Refer to "Removal and Installation" Removal and Installation or "Removal and Installation" Removal and Installation or "Removal and Installation" Removal and Installation. If OK, replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness or connectors.

3. CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM harness connector M81and front room/map lamp harness connector R107 and cargo lamp harness connector R104.
3.Check continuity between BCM harness connector M81 terminal 136 and ground.





Is the inspection result normal?
YES- Check interior room lamps for a short circuit. If NG, replace lamp in question. Refer to "Removal and Installation" Removal and Installation or "Removal and Installation" Removal and Installation or "Removal and Installation" Removal and Installation. If OK, replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness or connectors.
Revision: March 20122013 Infiniti JX