Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Setup New Body Control Module (BCM)
The following procedure will set up the new BCM:
- Connect a Tech 2 to the Data Link Connector (DLC).
- Turn the ignition switch ON.
- Select "Diagnostics" and input all of the required data to select the correct vehicle when prompted by the Tech 2.
- Select "Body" and then "Body Control Module".
- Select "Special Functions".
- Select "New VIN" and follow the screen directions to input all required data.
- Exit back to the "Special Functions" menu.
- Select "BCM Reprogramming".
- The scan tool will display "Do you want to setup a Body Control Module?" At the prompt, select "Setup BCM" soft-key on the scan tool.
- The scan tool will display "Now setting up the new Body Control Module".
- When the BCM has been setup successfully, the scan tool will display "Body Control Module setup is complete".
- When the BCM Setup Procedure and VIN have been entered, proceed with the procedure PROGRAMMING THEFT DETERRENT SYSTEM COMPONENTS .
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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