E22 - Communication Fault
Display and controller communication failed.
Medium severity
Caution rideability
Soon urgency
What it means
Control data is not passing correctly.
Common causes
- Loose display plug
- Damaged cable
- Wrong display/controller pair
Symptoms
- Error after startup
- No assist
- Display data missing
How to fix it
- Reconnect display cable
- Inspect pins
- Confirm compatibility