Bafang error codes

Bafang mid-drive (M-series, BBS) and hub motor systems with Bafang displays

03 Brakes applied low
04 Throttle fault high
05 Throttle not back in its rest position high
07 Overvoltage protection medium
08 Motor hall sensor fault medium
09 Motor phase fault high
10 Motor too hot medium
11 Motor temperature sensor fault medium
12 Controller current sensor fault medium
13 Battery temperature sensor fault medium
14 Controller too hot medium
15 Controller temperature sensor fault medium
21 Speed sensor fault medium
22 Battery (BMS) communication fault medium
25 Torque sensor signal fault medium
26 Torque sensor speed signal fault medium
27 Controller overcurrent medium
28 Torque sensor start-up error low
30 Communication fault medium
33 Brake sensor signal fault high
35 15 V detection circuit fault medium
36 Keypad detection circuit fault medium
37 Controller watchdog (WDT) fault medium
38 Sensor watchdog (WDT) fault medium
41 Battery voltage too high high
42 Battery voltage too low medium
43 Battery cell power too high high
44 Battery cell voltage too high high
45 Battery too hot high
46 Battery too cold low
47 Battery state of charge too high medium
48 Battery state of charge too low medium
61 Gear shift detection fault low
62 Electronic derailleur cannot release low
71 Electronic lock jammed low
81 Bluetooth module fault low

Systems and displays covered

Bafang DP C244 / C245 (CAN, colour) – Colour CAN display with Eco–Boost modes; C245 adds Bluetooth
Bafang DP C18 (UART / CAN) – Compact colour display used on many M-series and BBS bikes
Bafang DP C10 (CAN) – Segment LCD with USB charging
Bafang DP E180 / E181 (CAN, LED) – Small LED remote; error shown as flashing level LEDs