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.
DTC P04C2: General Description
The fuel fill door opener solenoid relay is installed to switch the power source of the actuator for the fuel lid open control for refueling. The fuel fill door opener solenoid relay is normally non-energized and the fuel lid is closed. The powertrain control module (PCM) detects a malfunction and stores a DTC when close signal is returned continuously for the prescribed time or more though open signal is not output to the fuel fill door opener solenoid relay.
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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.
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