E30 - Controller Communication Error
Display and controller cannot communicate.
High severity
Caution rideability
Soon urgency
What it means
Main system communication has failed.
Common causes
- Damaged display cable
- Wrong protocol
- Controller port fault
Symptoms
- No assist
- Display error 30
- Buttons not controlling system
How to fix it
- Check display plug
- Inspect harness
- Try known-compatible display
- Replace controller/display as needed