OBD-II code · Powertrain (generic, extended)
P28F5 Engine Disconnect Clutch Pressure Sensor Circuit Intermittent/Erratic
The engine disconnect clutch pressure sensor signal drops out or jumps intermittently. Loose connector or noisy ground reference.
Is it safe to drive with P28F5?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–9 h
- Emissions test
- Usually unaffected
- Parts involved
- Engine Disconnect Clutch Pressure Sensor, Wiring Harness
Related codes
- P28F2Engine Disconnect Clutch Pressure Sensor Circuit Range/Performance
- P28F3Engine Disconnect Clutch Pressure Sensor Circuit Low
- P28F4Engine Disconnect Clutch Pressure Sensor Circuit High
- P28F6Engine Disconnect Clutch Actuator Circuit Intermittent
- P28F7Exhaust Pressure Too High Bank 1
- P28F8Exhaust Pressure Too High Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.