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.
Reprogram Existing BCM
To program and setup an existing BCM, perform the following procedure:
- With a scan tool, access the Service Programming System (SPS) and follow the on-screen instructions. Refer to Service Programming System (SPS)Β .
- On the SPS Supported Controllers screen, select BCM Body Control Module Programming and follow the on-screen instructions.
- On the SPS Supported Controllers screen, select BCM Body Control Module Setup and follow the on-screen instructions.
- Check the driver information center display for additional messages regarding further calibration instructions. If there are no addition driver information center instructions present, programming is complete.
If the BCM fails to accept the program, verify all scan tool and BCM connections are secure.
- Turn the ignition OFF for 10 seconds.
- Open and close the door.
- Connect the scan tool to the data link connector.
- Ignition ON, engine OFF.
- With a scan tool, clear all DTCs from all control modules.
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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