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.
PCM Reprogramming: Notes
This procedure will need to be done when one or more of the following situations are true:
-- A vehicle's PCM has been replaced.
-- DTC P1602 - PCM Not Programmed is set.
-- An updated calibration or software release is available for either the PCM or TCM.
This procedure assumes that the StarMOBILE® devices are configured to your dealership's network with either a wired or wireless connection. The StarMOBILE® must also be running at the latest operating system and software release level.
Table Of Contents
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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.