Component Tests

Work Flow














Power Supply Circuit Check














Ground Circuit Check

Data Lines Open Circuit Check




Data lines open circuit check

NOTE: When checking data line circuit, disconnect BCM (Body Control Module) and all LCU connectors.

1. Disconnect BCM and LCU connectors.
2. Check continuity between BCM and LCU terminals.

Data Lines Short Circuit Check




1. Disconnect BCM and all LCU connectors.
2. Check continuity between BCM terminal and body ground.




3. Check voltage between BCM terminal and body ground.