E-bike error codes — 85 documented codes
Diagnostic codes extracted from controller/display documentation, with the model or family each applies to and the source page. This reference is free; the licensed dataset adds the full component relations and compatibility matrix.
| Brand | Subject / display | Code | Meaning | Model / family | Source |
|---|---|---|---|---|---|
| KT (Kunteng) | KT LCD11 01 | 01 | Throttle Abnormality | http://www.szktdz.com/upload/202509280934433.pdf | |
| KT (Kunteng) | KT LCD11 03 | 03 | Motor hall signal Abnormality | http://www.szktdz.com/upload/202509280934433.pdf | |
| KT (Kunteng) | KT LCD11 04 | 04 | Torque sensor signal Abnormality | http://www.szktdz.com/upload/202509280934433.pdf | |
| KT (Kunteng) | KT LCD11 05 | 05 | Axis speed sensor Abnormality(only applied to torque) | http://www.szktdz.com/upload/202509280934433.pdf | |
| KT (Kunteng) | KT LCD10H 01 | 01 | Throttle Abnormality | http://www.szktdz.com/upload/202509280939524.pdf | |
| KT (Kunteng) | KT LCD10H 03 | 03 | Motor hall signal Abnormality | http://www.szktdz.com/upload/202509280939524.pdf | |
| KT (Kunteng) | KT LCD10H 04 | 04 | Torque sensor signal Abnormality | http://www.szktdz.com/upload/202509280939524.pdf | |
| KT (Kunteng) | KT LCD10H 05 | 05 | Axis speed sensor Abnormality(only applied to torque) | http://www.szktdz.com/upload/202509280939524.pdf | |
| KT (Kunteng) | KT LCD10H 06 | 06 | Motor or controller has short circuit Abnormality | http://www.szktdz.com/upload/202509280939524.pdf | |
| KT (Kunteng) | KT LCD7 01 | 01 | Throttle Abnormality | http://www.szktdz.com/upload/202509280941004.pdf | |
| KT (Kunteng) | KT LCD7 03 | 03 | Motor hall signal Abnormality | http://www.szktdz.com/upload/202509280941004.pdf | |
| KT (Kunteng) | KT LCD7 04 | 04 | Torque sensor signal Abnormality | http://www.szktdz.com/upload/202509280941004.pdf | |
| KT (Kunteng) | KT LCD7 05 | 05 | Axis speed sensor Abnormality(only applied to torque sensor) | http://www.szktdz.com/upload/202509280941004.pdf | |
| KT (Kunteng) | KT LCD7 06 | 06 | Motor or controller has short circuit Abnormality | http://www.szktdz.com/upload/202509280941004.pdf | |
| Bafang | Bafang E161 04 | 04 | The throttle has fault. 2. Disconnect the throttle, If the problem still | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 05 | 05 | position. improve, please change to a new throttle.(only) | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 07 | 07 | Overvoltage protection | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 08 | 08 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 09 | 09 | Error with the Engine phase’s Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 10 | 10 | has reached its maximum protection | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 11 | 11 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 12 | 12 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 13 | 13 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 14 | 14 | the controller has reached its maxi- | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 15 | 15 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 21 | 21 | Speed sensor Error mm | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 25 | 25 | Torque signal Error | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 26 | 26 | 2.Check the speed sensor for signs of damage | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 27 | 27 | Overcurrent from controller Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 30 | 30 | Communication problem | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 33 | 33 | 2. If the error continues to occur, please con- | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 35 | 35 | Detection circuit for 15V has an error Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 36 | 36 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 37 | 37 | WDT circuit is faulty Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 41 | 41 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 42 | 42 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 43 | 43 | Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Bafang | Bafang E161 44 | 44 | Voltage of the single cell is too high Please contact your retailer | https://www.bafang-e.com/uploaded/manual/BF-UM-C-DP%20E161-EN.pdf | |
| Shimano | Shimano E010 | E010 | A system error was detected | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E013 | E013 | An anomaly was detected in the drive unit’s firmware | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E014 | E014 | The speed sensor may have been installed in the wrong position | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E020 | E020 | A communication error between the battery and drive unit was detected | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E021 | E021 | Battery connected to drive unit conforms with system standards but is not supported | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E022 | E022 | Battery connected to drive unit does not conform with system standards | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E023 | E023 | Electrical failure inside the battery | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E024 | E024 | Communication error with the bicycle system | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E025 | E025 | unit is not No system is displayed if of the cables | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E033 | E033 | disconnected. current doesn’t Power system provided | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Shimano | Shimano E043 | E043 | of the cycle Power may be provided (EW-EN100) the two LEDs on one of the procedures | https://si.shimano.com/en/pdfs/um/72F0B/UM-72F0B-001-ENG.pdf | |
| Bosch eBike Systems | Bosch 800 | 800 | interner ABS-Fehler | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 810 | 810 | Ursache unplausible Signale am Radgeschwindig- keits-Sensor | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 820 | 820 | Fehler an Leitung zum vorderen Radge- schwindigkeits-Sensor | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 826 | 826 | schwindigkeits-Sensor Sensorscheibe möglicherweise nicht vor- handen, defekt oder falsch montiert; deut | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 830 | 830 | lich unterschiedliche Reifendurchmesser Vorderrad und Hinterrad; extreme Fahrsi- tuation, z.B. Fahren auf dem Hinterrad Fehler an Leitung zum hinteren Radge- schwindigkeits-Sensor | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 831 | 831 | unplausible Signale am hinteren Radge | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 835 | 835 | Sensorscheibe möglicherweise nicht vor- handen, defekt oder falsch montiert; deut | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 840 | 840 | lich unterschiedliche Reifendurchmesser Vorderrad und Hinterrad; extreme Fahrsi- tuation, z.B. Fahren auf dem Hinterrad interner ABS-Fehler | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 850 | 850 | interner ABS-Fehler | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 861 | 861 | Fehler der Spannungsversorgung | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 871 | 871 | Kommunikationsfehler | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 889 | 889 | interner ABS-Fehler | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 890 | 890 | ABS-Kontrollleuchte ist defekt oder fehlt; ABS ist möglicherweise ohne Funktion. interner Fehler des Bordcomputers und Service und Reinigung inklusive der Antriebseinheit dürfen nicht oder mit Druckwasser gereinigt werden. Sie für die Reinigung Ihres Bordcomputers ein mit Wasser befeuchtetes Tuch. Verwenden | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 821 | 821 | Causa | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Bosch eBike Systems | Bosch 833 | 833 | stighedssensor | https://www.bosch-ebike.com/fileadmin/EBC/Service/Downloads/Bedienungsanleitungen/MY2025/BES2/Purion_BUI215/Purion_BUI215_MY25_WEU_oReg_v1.pdf | |
| Yamaha | Yamaha 12 | 12 | Communicatie met het display is onderbroken. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 13 | 13 | Communicatiedata kan niet worden weergegeven. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 31 | 31 | Geen communicatiesignalen. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 32 | 32 | Bedradingsfout tussen spoel en printplaat. (Klapperende bedrading: bijna losgekoppeld.) | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 33 | 33 | Abnormale nullastspanning. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 34 | 34 | Abnormale spanning (gedetecteerd tijdens bediening / met hoge constante spanning). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 36 | 36 | Abnormale spanning (gedetecteerd tijdens bediening / overig). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 37 | 37 | Abnormale spanning (gedetecteerd tijdens bediening bij lage snelheid). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 38 | 38 | Fout trapkrachtsensor of krukassensor. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 39 | 39 | Kortsluiting of defect krukassensor. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 61 | 61 | Abnormale spanning in U-fase stroomsensor, terwijl de motor niet in bedrijf is. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 63 | 63 | Fout bij het lezen van de gegevens. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 66 | 66 | Gegevensfout in extern geheugen. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 64 | 64 | Gedetecteerde temperatuur printplaat is te laag (-20 graden). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 67 | 67 | 2 verbindingskabels zijn losgekoppeld. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 68 | 68 | Niet aangesloten of geleide kabel heeft kortsluiting. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 71 | 71 | Gegevens van accu konden niet correct worden ontvangen. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 73 | 73 | De gedetecteerde accuspanning is te hoog (45V). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 79 | 79 | Abnormale gelijkstroom. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 35 | 35 | Abnormale spanning (gedetecteerd tijdens bediening / met hoge constante spanning). | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf | |
| Yamaha | Yamaha 62 | 62 | Abnormale spanning toegepast bij U-fase motor. | http://hollandbikeshop.com/pdf_dutch_repairs/65-2-yamaha-e-bike-foutcodes.pdf |
Source links open the original document; quotes are stored per row in the licensed build.