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 Reset Procedure
PCM reset procedure is used to clear codes. Scan tool is necessary to clear codes. When codes are cleared, freeze frame data, diagnostic monitoring test results, and system monitors are also reset. Follow scan tool equipment manufacturer's instructions to perform this function. If codes are cleared without satisfactorily performing identified drive cycle, DTC P1000 will set. DTC P1000 will be set in PCM memory until all OBD-II system monitors or components have been tested to satisfy OBD-II drive cycle without any faults occurring. To clear DTC P1000, perform DRIVE CYCLE PROCEDURES .
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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.