Internal processor fault within the engine/powertrain control module.
SYMPTOMS
- Check-engine light
- Reduced power / limp mode
- Possible no-start
LIKELY CAUSES
- Failed control-module processor
- Power/ground fault
- Internal hardware failure
DIAGNOSIS STEPS
- Verify module power and grounds
- Clear and retest
- Replace and code the module if confirmed
RELATED PARTS
- Engine control module (DME)