What it means
A general performance fault in the supercharger disconnect clutch. Engagement or release is slow, sticky, or out of tolerance without a clear electrical-side cause.
At a glance
- Usually lights the check-engine light
How it works
The supercharger disconnect clutch couples or uncouples the supercharger drive as operating conditions require. This performance code indicates that engagement or release is slower or less consistent than expected, with the supplied fault information pointing to clutch wear, air-gap change, or contamination rather than a clear electrical-side problem.
Common causes
Most likely first.
- Worn friction surfaces or air gap drift
- Oil or debris on the clutch face
Symptoms
- Reduced engine performance or boost
- Unusual noise from the supercharger drive
- Increased fuel consumption
How to diagnose it
- Review freeze-frame data and available clutch command or status information to identify whether the issue occurred during engagement or release.
- Inspect the supercharger drive area for unusual noise, visible contamination, or signs of oil reaching the clutch face.
- Check accessible clutch surfaces and linkage for wear, debris, or restricted movement using the manufacturer's service procedure.
- Measure clutch air gap, where applicable, and compare it with the manufacturer's specification.
- If the clutch and drive move freely, check the command and feedback circuits before attributing the fault to the module.
Common fixes
- Clean contamination from the clutch face if the manufacturer's procedure permits it.
- Correct an oil leak that is contaminating the supercharger clutch.
- Adjust the clutch air gap if the design allows adjustment and it is outside specification.
- Replace worn clutch friction components or a damaged clutch assembly.
Can I keep driving?
Drive gently if the vehicle remains quiet and responsive, but avoid hard acceleration and towing because supercharger assistance may be reduced. Stop if the drive noise becomes severe or the supercharger appears to bind.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.