In Vehicle Multiplexing System (IVMS)

CIRCUIT CHECKS





Power Supply Circuit Check





Ground Circuit Check





Data Lines Open Circuit Check
NOTE: When checking data line circuit, disconnect Body Control Module (BCM) and all Local Control Unit (LCU) connectors.
1. Disconnect BCM and LCU connectors.
2. Check continuity between BCM and LCU terminals.

Data Lines Short Circuit Check
1. Disconnect Body Control Module (BCM) and all Local Control Unit (LCU) connectors.





2. Check continuity between BCM terminal and body ground.





3. Check Voltage between BCM terminal and body ground.