What does code P2306 mean?

Q: What does code P2306 mean?

Ignition Coil 'C' Primary Control Circuit Low. P2306 means the engine computer (PCM) commanded ignition coil 'C' to fire, but the primary control circuit stayed at a low voltage when it expected the coil driver to pull the circuit high. The PCM detects this as a short-to-ground or excessive current draw on the coil's primary control wire, so it flags the circuit as faulty.

DTC codes / P23xx · Ignition system and misfire / P2306

P2306Ignition Coil 'C' Primary Control Circuit Low

P2306 means the engine computer (PCM) commanded ignition coil 'C' to fire, but the primary control circuit stayed at a low voltage when it expected the coil driver to pull the circuit high. The PCM detects this as a short-to-ground or excessive current draw on the coil's primary control wire, so it flags the circuit as faulty.

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.