E944 Code
Check M2S E944 e-Bike Error Code :
Indication conditions
A communication error was detected between the shifter/switch and the drive unit.
Operational restrictions being displayed
Assist will not be provided when riding.
Solution
Properly reconnect the electric wire connecting the shifter/switch and the drive unit.
If the situation does not improve, stop use and contact your place of purchase.
This error will be cleared when you turn the power OFF or connect to your e-bike cable, even if a problem with the connection state is displayed. If the operation limitation still applies after this error is cleared, contact the place of purchase.