Introduction
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.
Setup New Body Control Module (BCM)
Important:
• | The BCM will not function properly if the Setup New BCM procedure is
not performed. |
• | Make sure the battery is fully charged before performing the setup procedure. |
• | Make sure all disconnected devices and connectors have been reconnected |
• | Perform the Theft Deterrent Re-learn procedure after successfully finishing
the Setup New BCM procedure. Refer to
Programming Theft Deterrent System Components
in Theft Deterrent. If the Theft Deterrent
Re-learn procedure is not performed after a BCM replacement, the following conditions
may occur: |
- | The vehicle will not be protected against theft by the PASSLOCK system. |
- | The engine will not crank nor start. |
- Connect a Scan Tool
(Tech 2) to the Data Link Connector (DLC).
- Turn the ignition switch on.
- Select Diagnostics and input all of the required data when prompted by
the Scan Tool
(Tech 2).
- Select BODY CONTROL MODULE.
- Select SPECIAL FUNCTIONS.
- Select Setup New BCM.
- Note, Input all of the required data when prompted by the scan tool.
- Select Setup SDM Part Number in BCM, and follow the onscreen directions.
- Select New VIN, and follow the onscreen directions.
- Select Option Configuration, and follow the onscreen directions. .
- Select Point of Sale, and follow the onscreen directions. .
- Exit back to the SPECIAL FUNCTIONS menu.
- When the BCM, VIN, Point of Sale and Option Configuration have been entered,
proceed with the Theft Deterrent Re-learn procedure.
- If the scan tool displays UNABLE TO PROGRAM BCM. BCM IS SECURED, then
the BCM must be replaced and this procedure must be repeated on a new BCM.
NOTE: After the above procedure has been completed,
personalization of the BCM defaults to a default setting. Inform the customer that
the personalization settings must be set again.
Important: After programming, perform the following to avoid future misdiagnosis:
- Turn the ignition OFF for 10 seconds.
- Connect the scan tool to the data link connector.
- Turn the ignition ON with the engine OFF.
- Use the scan tool in order to retrieve history DTCs from all modules.
- Clear all history DTCs.