What does code P2359 mean?

Q: What does code P2359 mean?

Ignition Coil L Secondary Circuit. The engine control module (ECM) monitors the secondary ignition circuit for coil 'L' and detects an abnormal voltage pattern during the coil's firing event, indicating a fault in the coil's secondary winding, its high-voltage path, or the spark plug circuit. This code is stored when the ECM sees a secondary circuit signal that falls outside the expected range for a specified number of ignition cycles.

DTC codes / P23xx · Ignition system and misfire / P2359

P2359Ignition Coil L Secondary Circuit

The engine control module (ECM) monitors the secondary ignition circuit for coil 'L' and detects an abnormal voltage pattern during the coil's firing event, indicating a fault in the coil's secondary winding, its high-voltage path, or the spark plug circuit. This code is stored when the ECM sees a secondary circuit signal that falls outside the expected range for a specified number of ignition cycles.

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.