22 - BMS Communication Error
Battery BMS communication is missing or abnormal.
High severity
Stop rideability
Immediate urgency
What it means
Smart battery data cannot be read.
Common causes
- Battery communication wire fault
- BMS issue
- Connector problem
Symptoms
- Battery not recognised
- No assist
- Random shutdown
How to fix it
- Reseat battery
- Clean contacts
- Check communication cable
- Battery diagnostic