Diagnosis Procedure

Regarding Wiring Diagram information, refer to INTERIOR ROOM LAMP CONTROL SYSTEM: WIRING DIAGRAM [WITH POWER DOOR LOCKS] .

Step	Action	YES	NO
1	CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT  SDT Turn ignition switch ON. Courtesy of SUZUKI OF AMERICA CORP. 2. Select "BATTERY SAVER" of BCM (BATTERY SAVER) active test item. 3. While operating the test item, check voltage between BCM connector M20 terminal 56 and ground. Courtesy of SUZUKI OF AMERICA CORP. Is the inspection result normal?	GO TO 2	Replace BCM. Refer to [BCM (BODY CONTROL MODULE): REMOVAL AND INSTALLATION ]
2	CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT  Turn ignition switch OFF. Disconnect the following connectors. BCM M20 Ignition keyhole illumination (if equipped) Front room/map lamp assembly (if equipped) Vanity lamp LH (if equipped) Vanity lamp RH (if equipped) Room lamp 2nd row Check continuity between BCM connector M20 terminal 56 and each interior room lamp connector. Is the inspection result normal?	GO TO 3	Repair the harness or connectors.
3	CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT  Check continuity between BCM connector M20 terminal 56 and ground. Is the inspection result normal?	Replace the interior room lamp. Refer to [INTERIOR ROOM LAMP: REMOVAL AND INSTALLATION [WITH POWER DOOR LOCKS] ].	Repair the harness or connectors.