BCM (BODY CONTROL MODULE) : Diagnosis Procedure
- CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
SIGNAL NAME, FUSE AND FUSIBLE LINK NO REFERENCETerminal No. Signal name Fuse and fusible link No. 1 Battery power supply K 11 10 Is the fuse fusing?
YES: Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.
NO: GO TO 2.
- CHECK POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect BCM connectors.
- Check voltage between BCM harness connector and ground.VOLTAGE REFERENCE
Terminals Voltage (Approx.) (+) (-) BCM Ground Connector Terminal M118 1 Battery voltage M119 11
Is the measurement value normal?
YES: GO TO 3.
NO: Repair harness or connector.
- CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
CONTINUITY REFERENCEBCM Ground Continuity Connector Terminal M119 13 Existed Does continuity exist?
YES: INSPECTION END
NO: Repair harness or connector.