Sevcon CAN Fault
Communication lost with Sevcon motor controller
What it means
Communication lost with Sevcon motor controller
Error — Issue detected, may affect performance.
Likely causes
- Loose CAN bus connection
- Controller not responding
- CAN bus termination issue
What to do
- 1Check all wiring connections
- 2Inspect CAN bus connectors for corrosion
- 3Power cycle the bike
Which bikes use this table
Recorded in the binary log rather than shown on the dash — every generation writes them.
Related codes
Other log file Communication (CAN) codes:
Dashboard codes for the same subsystem:
Questions
What does "Sevcon CAN Fault" mean in a Zero log?
Communication lost with Sevcon motor controller. It is written by the MBB. It is classed as error: issue detected, may affect performance.
What should I do about it?
Check all wiring connections. Inspect CAN bus connectors for corrosion. Power cycle the bike.
See when this actually happened on your bike
A dash code tells you the fault; the log tells you the pack temperature, the state of charge and the ten minutes leading up to it.
Sources:
Community reference: ZeroManual wiki entry
The code and its name are transcribed from Zero's own owner manuals; the severity, category and troubleshooting notes are ours. For official diagnostics, consult an authorized Zero Motorcycles dealer.