P0650 – Malfunction Indicator Lamp (MIL) Control Circuit
Description
The MIL (check engine light) control circuit is malfunctioning.
Need More Than Just the Fault Code?
A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.
Compare Diagnostic ScannersSymptoms
- No check engine light
- Intermittent MIL
- Rough idle
- Poor acceleration
- Failed emissions test
Causes
- Faulty MIL bulb
- Damaged wiring
- Loose connector
- ECU issue
- Cluster issue
Diagnosis
- Inspect wiring
- Check MIL bulb
- Test cluster
- Scan live data
- Inspect connectors
Repair
- Replace MIL bulb
- Repair wiring
- Fix connectors
- Replace cluster
- Update ECU
