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DTC codes / P24xx · Auxiliary emission controls / P2411

P2411Fuel Cap Sensor/Switch Circuit High

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.

SystemPowertrain
Code typeGeneric (all makes)
SeverityLow
Fix difficultyIntermediate
AreaAuxiliary emission controls

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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