What does code P28F0 mean?

Q: What does code P28F0 mean?

Engine Disconnect Clutch Actuator Stuck On. P28F0 indicates that the powertrain control module (PCM) has detected the engine disconnect clutch actuator is stuck in the engaged or 'on' position when it should be disengaged. This clutch, used in hybrid and some automatic transmission systems, physically separates the engine from the drivetrain; the PCM monitors actuator position and current draw to confirm proper operation.

DTC codes / P28xx · Transmission / P28F0

P28F0Engine Disconnect Clutch Actuator Stuck On

P28F0 indicates that the powertrain control module (PCM) has detected the engine disconnect clutch actuator is stuck in the engaged or 'on' position when it should be disengaged. This clutch, used in hybrid and some automatic transmission systems, physically separates the engine from the drivetrain; the PCM monitors actuator position and current draw to confirm proper operation.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaTransmission

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