Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Body Controls Module (BCM)

Body Control Module (BCM):




The Body Control Module (BCM) is the Content Theft Deterrent (CTD) system controller and monitors the status of the vehicle doors, lock cylinders, shock sensor, and keyless entry system. The BCM also operates the park lamps, horn, and status Light Emitting Diode (LED) according to the mode of operation the system is in, and communicates a fuel enable signal to the Powertrain Control Module (PCM).