P28EF
Engine Disconnect Clutch Actuator Performance/Stuck Off
P28EF is an OBD-II diagnostic trouble code meaning: Engine Disconnect Clutch Actuator Performance/Stuck Off. Common causes: mechanical jamming of the clutch drive, open or short circuit in control circuit. Estimated repair cost: $56–167.
Symptoms
- Gear shifting problems
- Vibrations when starting off
- Transmission transition to emergency mode
- Check Engine Light Illuminates
- Reduced engine power
Causes
- Mechanical jamming of the clutch drive
- Open or short circuit in control circuit
- Drive solenoid valve malfunction
- Problems with the transmission control unit
- Worn or damaged mechanical drive components
How to Fix
- Check the integrity of the wiring and connectors of the clutch drive
- Diagnose the operation of the drive solenoid valve
- Check the mechanical components of the drive for jamming
- Scan the transmission control unit for errors
- If necessary, replace the clutch drive
Related codes
Error P28EF by Vehicle Brand
FAQ
What does the P28EF code mean?
P28EF is an OBD-II diagnostic trouble code that indicates: Engine Disconnect Clutch Actuator Performance/Stuck Off
What causes a P28EF error code?
The most common causes of P28EF include: Mechanical jamming of the clutch drive; Open or short circuit in control circuit; Drive solenoid valve malfunction; Problems with the transmission control unit.
How do I fix a P28EF diagnostic trouble code?
To fix P28EF: Check the integrity of the wiring and connectors of the clutch drive. Diagnose the operation of the drive solenoid valve. Check the mechanical components of the drive for jamming. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P28EF?
Limited driving only, diagnose soon
How much does it cost to fix P28EF?
The estimated repair cost for P28EF is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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