Battery Saver Output/Power Supply Circuit

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 activated.


Component Function Check


1. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION

CONSULT
1.Turn ignition switch ON.
2.Turn each interior room lamp ON.
-Front room/map lamp assembly
-Personal lamps rear
-Foot lamps
-Front step lamps
-Rear step lamps
-Trunk room lamp
-Vanity mirror lamps
3.Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item.
4. While operating the test item, check that each interior room lamp turns ON/OFF.
OFF: Interior room lamp OFF
ON: Interior room lamp ON
Is the inspection result normal?
YES- Battery saver output/power supply circuit is normal.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, Interior Room Lamp Control System.

1. CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

CONSULT





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 after making sure battery saver output/power supply circuit is not shorted to voltage. Service and Repair.

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
-Vanity mirror lamp LH
-Vanity mirror lamp RH
-Foot lamp LH
-Foot lamp RH
-Front step lamp LH
-Front step lamp RH
-Rear step lamp LH
-Rear step lamp RH
-Trunk room lamp
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- Replace the interior room lamp. Service and Repair.
NO- Repair the harness or connectors.