Diagnosis Procedure

Regarding Wiring Diagram information, refer to WARNING CHIME SYSTEM: WIRING DIAGRAM .

Step	Action	YES	NO
1	CHECK FUSE  Check if the key switch 10A fuse [No. 25, located in the fuse block (J/B)] is blown. Is the fuse blown?	Replace the blown fuse after repairing the affected circuit.	GO TO 2
2	CHECK BCM INPUT SIGNAL  Check voltage between BCM harness connector and ground. Is the inspection result normal?	Inspection End.	GO TO 3
3	CHECK KEY SWITCH CIRCUIT  Disconnect BCM and key switch. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 2. Check continuity between BCM harness connector M18 (A) and key switch harness connector M27 (B). Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 3. Check continuity between BCM harness connector M18 (A) and ground. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Is the inspection result normal?	GO TO 4	Repair or replace harness.
4	CHECK KEY SWITCH POWER SUPPLY CIRCUIT  Check voltage between key switch harness connector and ground. Is the inspection result normal?	Replace key switch.	Repair or replace harness.