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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Wake-Up State

Wake-up signals turn ON the BCM and cause the BCM to begin active control and/or monitoring of certain devices. The BCM wake-ups are:
^ Door ajar switches
^ Dome lamp
^ Park lamps
^ Power door lock switches
^ Interior lamp request active
^ Ignition key put into the ignition switch
^ Ignition key removed from the ignition switch
^ Ignition in the ON position
^ Rear compartment release switch
^ RFA request to the BCM
^ Any Class 2 communication requiring BCM interaction.