What does code P2345 mean?

Q: What does code P2345 mean?

Cylinder #10 Above Knock Threshold. P2345 means the engine computer has detected an abnormal vibration or noise signature on cylinder number 10 that exceeds the calibrated knock threshold, indicating that combustion in that cylinder is producing excessive knock or mechanical noise. The powertrain control module (PCM) uses a knock sensor or ion-sensing ignition system to monitor each cylinder individually, and it sets this code when the signal from cylinder 10 crosses the threshold for a calibrated time period.

DTC codes / P23xx · Ignition system and misfire / P2345

P2345Cylinder #10 Above Knock Threshold

P2345 means the engine computer has detected an abnormal vibration or noise signature on cylinder number 10 that exceeds the calibrated knock threshold, indicating that combustion in that cylinder is producing excessive knock or mechanical noise. The powertrain control module (PCM) uses a knock sensor or ion-sensing ignition system to monitor each cylinder individually, and it sets this code when the signal from cylinder 10 crosses the threshold for a calibrated time period.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.