Trunk Room Lamp Circuit

TRUNK ROOM LAMP CIRCUIT

Description

Controls the trunk room lamp (ground side) to turn the trunk room lamp ON and OFF.


Component Function Check


CAUTION:
Before performing the diagnosis, check that the following is normal.
- Battery saver output/power supply
- Trunk room lamp bulb


Diagnosis Procedure

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

1. CHECK TRUNK ROOM LAMP OUTPUT

1.Turn ignition switch OFF.
2.Remove the trunk room bulb.
3.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 after making sure battery saver output/power supply circuit is not shorted to voltage. Refer to "Removal and Installation" Service and Repair (with Intelligent Key) or "Removal and Installation" Service and Repair (without Intelligent Key).

2. CHECK TRUNK ROOM LAMP OPEN CIRCUIT

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





Is the inspection result normal?
YES- Replace trunk room lamp.
NO- Repair or replace the harness or connector.

3. CHECK TRUNK ROOM LAMP SHORT CIRCUIT

1.Disconnect BCM harness connector.
2.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- Replace BCM after making sure battery saver output/power supply circuit is not shorted to voltage. Refer to "Removal and Installation" Service and Repair (with Intelligent Key) or "Removal and Installation" Service and Repair (without Intelligent Key).
NO- Repair or replace the harness or connector.