Code result
P25E9
Supercharger Disconnect Clutch Stuck Open
Moderate severity
What it means
The clutch that engages the mechanical supercharger to the engine drive will not close. The supercharger stays disengaged so boost from this stage is unavailable, which limits torque and may also affect cooling pump drives shared with the same belt.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Open electromagnetic clutch coil
highOne of the most commonly reported causes for this code — check this first.
Worn friction surfaces leave the air gap too large to attract
mediumA plausible cause — test and verify before replacing parts.
Corroded armature plate stuck open
lowLess common, but worth ruling out after the more likely causes.
Related help
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