Operation CHARM: Car repair manuals for everyone.

Loss of BCM Messages

Tests 1 - 2:





SYMPTOM
LOSS OF BCM MESSAGES

WHEN MONITORED
Whenever the ignition is ON.

SET CONDITION
If the PLG Module losses communication with the BCM for over 5 seconds, this code will set.

POSSIBLE CAUSES
- Attempt to communicate with the body control module
- Power liftgate module - loss of BCM messages