What it means
The A/C compressor clutch control circuit reports a control circuit condition. Clutch engagement cannot be commanded reliably.
At a glance
- Usually lights the check-engine light
How it works
The A/C compressor clutch control circuit lets the control module command the compressor clutch to engage. This code sets when the module detects a fault in that circuit, so it may not be able to engage the clutch reliably and the air conditioning may not cool.
Common causes
Most likely first.
- Wiring or connector fault
- Clutch coil fault
Symptoms
- A/C may not cool
How to diagnose it
- Check freeze-frame data and A/C live data to see whether the module requested clutch engagement when the fault appeared.
- Inspect the clutch wiring and connectors for loose connections, damaged insulation, corrosion, or heat damage.
- Check whether the clutch engages when commanded with a scan tool, while observing whether the circuit fault returns.
- Test the clutch control circuit for continuity and shorts, following the manufacturer's procedure.
- Test the compressor clutch coil against the manufacturer's specification.
Common fixes
- Reconnect a loose clutch circuit connector.
- Repair damaged A/C clutch control wiring.
- Clean or repair corroded connector terminals.
- Replace the clutch coil if testing confirms it is faulty.
Can I keep driving?
The main effect is loss of air conditioning; ordinary driving is generally unaffected. Do not keep commanding the A/C if the clutch or wiring becomes hot or produces a burning smell.
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.