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DTC codes / P23xx · Ignition system and misfire / P235F

P235FCylinder 11 Pressure Sensor Circuit High

P235F indicates that the powertrain control module (PCM) has detected an abnormally high voltage signal from the cylinder 11 pressure sensor circuit. This sensor, used on engines with cylinder pressure monitoring for combustion feedback, reports a voltage above the expected range, which the PCM interprets as a circuit fault rather than a valid pressure reading.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaIgnition system and misfire

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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