What does code P2356 mean?

Q: What does code P2356 mean?

Cylinder 10 Pressure Sensor Circuit Intermittent or Erratic. P2356 indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the cylinder 10 pressure sensor, which is used to monitor combustion pressure for that specific cylinder. The PCM sets this code when the sensor voltage or signal pattern falls outside expected parameters for a calibrated period, often due to wiring faults, sensor degradation, or mechanical issues affecting the cylinder.

DTC codes / P23xx · Ignition system and misfire / P2356

P2356Cylinder 10 Pressure Sensor Circuit Intermittent or Erratic

P2356 indicates that the powertrain control module (PCM) has detected an intermittent or erratic signal from the cylinder 10 pressure sensor, which is used to monitor combustion pressure for that specific cylinder. The PCM sets this code when the sensor voltage or signal pattern falls outside expected parameters for a calibrated period, often due to wiring faults, sensor degradation, or mechanical issues affecting the cylinder.

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.