What does code P25E9 mean?

Q: What does code P25E9 mean?

Supercharger Disconnect Clutch Stuck Open. P25E9 indicates that the supercharger disconnect clutch is stuck in the open position, meaning the clutch is not engaging to drive the supercharger. The engine control module (ECM) commands the clutch to close and monitors the circuit and its effect on boost; when the expected boost or circuit feedback is not seen, it sets this code.

DTC codes / P25xx · Vehicle speed, idle control and auxiliary inputs / P25E9

P25E9Supercharger Disconnect Clutch Stuck Open

P25E9 indicates that the supercharger disconnect clutch is stuck in the open position, meaning the clutch is not engaging to drive the supercharger. The engine control module (ECM) commands the clutch to close and monitors the circuit and its effect on boost; when the expected boost or circuit feedback is not seen, it sets this code.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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