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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Programming A New Body Control Module (BCM)

Important
^ Any new body control module (BCM) will automatically program to the resistance of the key (or interrogator setting) being used at the first ignition "ON" cycle. This can only be done once for the life of the module.

A new BCM is unprogrammed. Before the system will function properly it must be programmed to the code that matches the customer's keys:

1. Install new unprogrammed BCM.

2. Insert one of the customer's keys into the ignition lock cylinder and turn it to the "ON" position.
^ It is good to start the engine at this time to verify system operati9n.

3. Observe the "SECURITY" indicator lamp.
^ The indicator lamp lights for about five seconds and then goes out.
- Indicates that the BCM is programmed properly.
^ The indicator lamp flashes at a rate of one flash per second until ignition is "OFF."
- Indicates that the BCM did not program and the system components, wiring and contacts should be checked for a fault.