Powertrain
generic / SAE
P25ED
Supercharger Disconnect Clutch Circuit High
Voltage on the supercharger clutch control line is above the expected window. Typical causes are a short to battery or an open coil that lets the driver float high.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / ED
Possible causes
- Control wire shorted to a B+ supply high
- Open clutch coil medium
- Connector pins corroded - high contact resistance low
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
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1500 €
- Estimated time: 1–5 h
- Component: supercharger clutch
- Component: clutch solenoid
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012