Diagnosis Procedure

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT


Description

Provides the interior room lamp power supply. Also cuts the power supply when the interior room lamp battery saver is activating.





BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT


Diagnosis Procedure

Regarding Wiring Diagram information, refer to Coupe or Sedan.
1.CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT
CONSULT-III
1. Turn ignition switch ON.
2. Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.





3. While operating the test item, check voltage between BCM connector M17 terminal 4 and ground.





Is the inspection result normal?
YES - GO TO 2
NO - Replace BCM. Refer to BCM.
2.CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the following connectors.
- BCM M17
- Front room/map lamp assembly
- Room lamp (coupe)
- Vanity mirror lamp LH (if equipped)
- Vanity mirror lamp RH (if equipped)
- Trunk room lamp
- Step lamp LH
- Step lamp RH
3. Check continuity between BCM connector M17 terminal 4 and each interior room lamp connector.





Is the inspection result normal?
YES - GO TO 3
NO - Repair the harness or connectors.
3.CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT





Check continuity between BCM connector M17 terminal 4 and ground.





Is the inspection result normal?
YES - Check that each interior room lamp has no internal short circuit.
NO - Repair the harness or connectors.