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.
Powertrain Control Module Programming: Notes
If replacing Powertrain Control Module (PCM), the correct vehicle mileage and Vehicle Identification Number (VIN) must be programmed into the PCM to prevent Diagnostic Trouble Codes (DTCs) from being set in the Anti-Lock Brake System (ABS) module, Supplemental Restraint System (SRS) module and Sentry Key Immobilizer Module (SKIM) (theft alarm). To program PCM and clear DTCs from ABS, SRS and SKIM modules, proceed to appropriate procedure listed below. If replacing PCM on models equipped with a Sentry Key Immobilizer Module (SKIM), the sentry key data must also be updated to enable engine starting. To update sentry key data, proceed to appropriate procedure listed below.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.