What does code P2323 mean?

Q: What does code P2323 mean?

Ignition Coil 'H' Secondary Circuit. P2323 indicates that the powertrain control module (PCM) has detected a fault in the secondary circuit of ignition coil 'H', which is the high-voltage side that fires the spark plug. The PCM monitors the coil's secondary circuit for expected electrical behavior and sets this code when the feedback signal falls outside the normal range, typically indicating an open, short, or excessive resistance in that circuit.

DTC codes / P23xx · Ignition system and misfire / P2323

P2323Ignition Coil 'H' Secondary Circuit

P2323 indicates that the powertrain control module (PCM) has detected a fault in the secondary circuit of ignition coil 'H', which is the high-voltage side that fires the spark plug. The PCM monitors the coil's secondary circuit for expected electrical behavior and sets this code when the feedback signal falls outside the normal range, typically indicating an open, short, or excessive resistance in that circuit.

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.