DTC codes / P24xx · Auxiliary emission controls / P2411
The powertrain control module (PCM) monitors the fuel cap sensor circuit and has detected a voltage reading that is higher than the expected range for the current operating conditions. This typically means the circuit is open, shorted to voltage, or the sensor's internal resistance has increased beyond specification, preventing the PCM from confirming the fuel cap is properly sealed.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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