What does code P2310 mean?

Q: What does code P2310 mean?

Ignition Coil 'D' Primary Control Circuit High. P2310 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the primary control circuit for ignition coil 'D', which is the coil responsible for a specific cylinder in the engine's firing order. The PCM commands the coil by grounding the primary circuit to build current and then releasing it to fire the spark plug; a high voltage on this circuit means the PCM sees voltage above the expected threshold when it should be low, indicating an open circuit, a short to voltage, or a failed coil driver.

DTC codes / P23xx · Ignition system and misfire / P2310

P2310Ignition Coil 'D' Primary Control Circuit High

P2310 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the primary control circuit for ignition coil 'D', which is the coil responsible for a specific cylinder in the engine's firing order. The PCM commands the coil by grounding the primary circuit to build current and then releasing it to fire the spark plug; a high voltage on this circuit means the PCM sees voltage above the expected threshold when it should be low, indicating an open circuit, a short to voltage, or a failed coil driver.

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.