Common symptoms of a bad Body Control Module (BCM) and What to Check to see if it has failed.
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What is a Body Control Module?
The body control module (BCM) monitors and controls electronics located in the body of the vehicle. This includes power windows, power mirrors, AC system, immobilizer system, central locking, lights, horn, wipers, and more. The BCM also communicates with other on-board computer modules such as the ECM.

Symptoms of a Bad Body Control Module (BCM)
Electrical Components Don't Work or Work Erratically
Dash Warning Lights
Battery Keeps Draining
Security System Problems
Failure in Driver Assist Systems
Communication Failure Codes (U0140)

Things Check with a Failed Body Control Module
Check Battery and Alternator are Good.
Check Fuses
Check BCM Ground Wire
Check Wire Harness for Damage
Check for Brunt Smell

By using this information user assumes all risk of use.

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