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

1. CHECK TRUNK ROOM LAMP OPERATION

CONSULT
1.Turn ignition switch ON.
2.Select "LUGGAGE LAMP TEST" of BCM (INT LAMP) active test item.
3.While operating the test item, check that trunk room lamp turns ON/OFF.

ON: Trunk room lamp ON
OFF: Trunk room lamp OFF

Is the inspection result normal?
YES- Trunk room lamp circuit is normal.
NO- Refer to "Diagnosis Procedure".


Diagnosis Procedure

Regarding Wiring Diagram information, Interior Room Lamp Coupe or Interior Room Lamp Sedan.

1. CHECK TRUNK ROOM LAMP OUTPUT

CONSULT
1.Turn ignition switch ON.
2.Select "LUGGAGE LAMP TEST" of BCM (INT LAMP) active test item.





3.While operating the test item, check voltage between BCM connector M20 terminal 110 and ground.





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

2. CHECK TRUNK ROOM LAMP OPEN CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect BCM connector M20 and trunk room lamp connector.
3.Check continuity between BCM connector M20 (A) terminal 110 and trunk room lamp connector B36 (B) terminal 2.





Is the inspection result normal?
YES- Check the trunk room lamp for an open. If OK, replace BCM. Service and Repair. If NG, replace the interior room lamp. Service and Repair.
NO- Repair harness or connectors.

3. CHECK TRUNK ROOM LAMP SHORT CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect BCM connector M20 and trunk room lamp connector.
3.Check continuity between BCM connector M20 terminal 110 and ground.





Is the inspection result normal?
YES- Check the trunk room lamp for a short circuit. If OK, replace BCM. Service and Repair. If NG, replace the interior room lamp. Service and Repair.
NO- Repair harness or connectors.