DTC codes / P23xx · Ignition system and misfire / P2369
P2369 means the powertrain control module (PCM) has detected an abnormally high voltage on the signal circuit from the cylinder 12 pressure sensor, which is used on engines with cylinder pressure monitoring to detect combustion quality and misfires. The PCM expects the sensor signal to stay within a calibrated voltage range, and a sustained high reading indicates an open circuit, a short to voltage, or a failed sensor.
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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