What does code P2325 mean?

Q: What does code P2325 mean?

Ignition Coil 'I' Primary Control Circuit High. P2325 means the powertrain control module (PCM) has detected an abnormally high voltage on the primary control circuit for ignition coil 'I', which is the low-voltage side that the PCM uses to switch the coil on and off. The circuit is expected to pulse between battery voltage and ground, so a sustained high reading tells the PCM that the coil driver is not pulling the circuit low as commanded, pointing to an open circuit, a failed coil, or a driver fault inside the module.

DTC codes / P23xx · Ignition system and misfire / P2325

P2325Ignition Coil 'I' Primary Control Circuit High

P2325 means the powertrain control module (PCM) has detected an abnormally high voltage on the primary control circuit for ignition coil 'I', which is the low-voltage side that the PCM uses to switch the coil on and off. The circuit is expected to pulse between battery voltage and ground, so a sustained high reading tells the PCM that the coil driver is not pulling the circuit low as commanded, pointing to an open circuit, a failed coil, or a driver fault inside the module.

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.