Important: Any new 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 not programmed. Before the system will function properly it must be programmed to the code that matches the customer's keys.

1. Install the new BCM. Refer to Body Control Module Replacement .
2. Insert one of the customer's keys into the ignition cylinder and turn it to the on position. Start the engine at this time in order to verify system operation.
3. Observe the SECURITY indicator lamp for the following conditions:

•	The indicator lamp lights for approximately 5 seconds and then goes out.

•	This indicates that the BCM is programmed properly. The indicator lamp flashes at a rate of one flash per second until the ignition is turned off.

•	This indicates that the BCM did not program and the system components, wiring and contacts should be checked for a fault.

Important: After programming, perform the following to avoid future misdiagnosis:

1. Turn the ignition OFF for 10 seconds.
2. Connect the scan tool to the data link connector.
3. Turn the ignition ON with the engine OFF.
4. Use the scan tool in order to retrieve history DTCs from all modules.
5. Clear all history DTCs.