Power Supply and Ground Circuit Check [Bluetooth Control Unit]

Regarding Wiring Diagram information, refer to [MID AUDIO SYSTEM: WIRING DIAGRAM [CREW CAB] ] or [PREMIUM AUDIO SYSTEM: WIRING DIAGRAM [KING CAB] ].

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK FUSE  Check that the following fuses for the Bluetooth control unit are not blown. Is inspection result OK?	GO TO 2.	Be sure to eliminate cause of malfunction before installing new fuse [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: CIRCUIT INSPECTION ].
2	CHECK POWER SUPPLY CIRCUIT  Check voltage between Bluetooth control unit harness connector B141 and ground. Is battery voltage present as specified?	GO TO 3.	Check connector housings for disconnected or loose terminals. Repair or replace harness or connector.
3	CHECK GROUND CIRCUIT  Turn ignition switch OFF. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 2. Disconnect Bluetooth control unit connector. 3. Check continuity between Bluetooth control unit harness connector B141 and ground. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. Are continuity results as specified?	Inspection End.	Repair or replace harness or connector.