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 (PCM)
The PCM verifies that the signal received from the theft deterrent control module. The theft deterrent control module can learn only one fuel enable signal. If the fuel enable signal is correct, the PCM enables the fuel delivery systems.
The PCM disables the fuel delivery systems if any of the following conditions occur:
- The fuel enable signal is incorrect.
- The system fuel disable signal is sent by the theft deterrent control module.
- No fuel signals are received - there is no communication with the theft deterrent control module.
NO RELATED
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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.