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 OPRATION
CONSULT-III
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.





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




Diagnosis Procedure
Regarding Wiring Diagram information, Interior Room Lamp.
1.CHECK TRUNK ROOM LAMP OUTPUT
CONSULT-III
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 trunk room lamp for an open. If OK, replace BCM. Service and Repair. If NG, replace trunk 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 harness connector M20 terminal
110 and ground.





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