What does code P2427 mean?

DTC codes / P24xx · Auxiliary emission controls / P2427

P2427Exhaust Gas Recirculation Cooling Valve Control Circuit High

P2427 indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for the exhaust gas recirculation (EGR) cooling valve. This typically means the circuit is shorted to power, the valve's internal coil is open, or the valve is stuck and drawing no current, causing the ECM to see a high-voltage condition on the control wire.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaAuxiliary emission controls

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.