During Body Control Module (BCM) related service, the procedures below are designated to set-up the BCM correctly. Before you start, read these procedures carefully and completely.

Important: The following procedures must be followed:

1. Read this procedure carefully and completely.
2. The BCM will not function properly if the Setup New BCM procedure is not performed.
3. Perform the Programming Theft Deterrent System Components in Theft Deterrent after successfully finishing the Setup New BCM procedure. If the Programming Theft Deterrent System Components procedure is not performed after a BCM replacement, one of the following conditions will occur:

-	The vehicle will not be protected against theft by the Theft Deterrent system.

-	The engine will not crank or start.

NOTE: After the procedure is completed, personalization of the BCM defaults to a default setting. Inform the customer that the personalization must be set again.

The following procedure will set up the new BCM:

1. Connect a Tech 2 to the Data Link Connector (DLC).
2. Turn the ignition switch ON.
3. Select "Diagnostics" and input all of the required data to select the correct vehicle when prompted by the Tech 2.
4. Select the correct model year and vehicle type (example "2001", "Passenger Car").
5. Select "Body" and then the correct Product Line (example "W").
6. Select "Body Control Module" and then "Special Functions".
7. Select "New VIN" and follow the screen directions to input all required data.
8. Exit back to the "Special Functions" menu.
9. Select "BCM Reprogramming".
10. The Tech 2 will display "Do you want to setup a Body Control Module?". At the prompt, select "Setup BCM" soft-key on the scan tool.
11. The Tech 2 will prompt, "Is Vehicle a Century Custom (WS) ? Yes or No". Respond accordingly.
12. The Tech 2 will display "Now setting up the new Body Control Module".
13. When the BCM has been setup successfully, the Tech 2 will display 'Body Control Module setup is complete".
14. When the BCM Setup Procedure and VIN have been entered, proceed with the procedure Programming Theft Deterrent System Components in Theft Deterrent.

Perform the procedure Programming Theft Deterrent System Components in Theft Deterrent.

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.