OBD-II code · Powertrain (generic, extended)
P28F3 Engine Disconnect Clutch Pressure Sensor Circuit Low
Voltage on the engine disconnect clutch pressure sensor signal line is below the expected window. Wire shorted to ground or sensor short.
Is it safe to drive with P28F3?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
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
- P28F0Engine Disconnect Clutch Actuator Stuck On
- P28F1Engine Disconnect Clutch Pressure Sensor Circuit
- P28F2Engine Disconnect Clutch Pressure Sensor Circuit Range/Performance
- P28F4Engine Disconnect Clutch Pressure Sensor Circuit High
- P28F5Engine Disconnect Clutch Pressure Sensor Circuit Intermittent/Erratic
- P28F6Engine Disconnect Clutch Actuator Circuit Intermittent
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.