P25EB
Supercharger Disconnect Clutch Circuit Range/Performance
The supercharger clutch control current does not match the commanded value within tolerance. Either coil resistance has drifted or the driver feedback is implausible.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
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
Common causes
Ordered by how often each turns out to be the cause.
- Coil resistance increased due to thermal damagePossible
- High-resistance contact in the clutch connectorPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Supercharger Clutch
- Clutch Solenoid
- Wiring Harness
P25EB is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.