FixVault

Diagnostic Test

VERIFY DTC IS ACTIVE 

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs.

    Does the scan tool display; U0140-00-LOST COMMUNICATION WITH BODY CONTROL MODULE as active?

    Yes 

    • Refer to DIAGNOSIS AND TESTING and perform the NO RESPONSE FROM BCM (BODY CONTROL MODULE) diagnostic procedure.

    No