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Shimano STEPS error codes
76 codes. Tap a code for meaning, causes and the fix.
E010E011E012E013E014E015E020E021E022E023E024E025E030E031E033E034E035E043E044E050E201E203E206E209E229E239E254E255E259E295E299E401E503E504E505E609E814E903E905E906E910E914E915E916E925E934E944E973W010W011W012W013W020W030W031W032W103W205W206W207W208W209W222W232W233W240W242W256W292W935W945W954W960W965W966W967
All Shimano STEPS codes
- E010 – Drive unit internal fault detected Dealer needed
- E011 – Shimano Steps general system error Dealer needed
- E012 – Pedal Sensor Did Not Initialise Fix at home
- E013 – Drive unit firmware fault detected Dealer needed
- E014 – Speed sensor signal abnormal Fix at home
- E015 – Internal drive unit fault detected Dealer needed
- E020 – Communication fault between battery and drive unit Fix at home
- E021 – Battery not supported by drive unit Dealer needed
- E022 – Battery not recognized by drive unit Dealer needed
- E023 – Battery electrical abnormality detected Dealer needed
- E024 – Battery overcurrent protection triggered Dealer needed
- E025 – Drive unit not recognised by battery Dealer needed
- E030 – Shifting unit does not match system configuration Dealer needed
- E031 – Chain tension and crank position fault Dealer needed
- E033 – Firmware not supported by system Dealer needed
- E034 – Drive unit firmware fault on Shimano STEPS Dealer needed
- E035 – Abnormal bicycle settings detected Dealer needed
- E043 – Shimano Steps firmware corruption fault Dealer needed
- E044 – Drive system configuration error Dealer needed
- E050 – Abnormal speed signal from wheel sensor Fix at home
- E201 – Internal fault detected in drive unit Dealer needed
- E203 – Drive unit fault stops motor assist Dealer needed
- E206 – Drive unit motor fault detected Dealer needed
- E209 – Drive unit internal fault detected Dealer needed
- E229 – Drive unit CAN port communication fault Dealer needed
- E239 – Accessory power fault in drive unit Dealer needed
- E254 – Battery electrical fault detected by system Dealer needed
- E255 – Battery reports an internal electrical fault Dealer needed
- E259 – Electrical fault detected in the battery Dealer needed
- E295 – Abnormal speed sensor signal Dealer needed
- E299 – Drive Unit Locked in Safe Mode Dealer needed
- E401 – Rear derailleur or motor unit fault Dealer needed
- E503 – Electrical fault in rear freehub Dealer needed
- E504 – Electrical fault in the freehub Dealer needed
- E505 – Freehub Sensor Fault on Shimano STEPS E-Bike Dealer needed
- E609 – Drive unit fault detected on Shimano STEPS Dealer needed
- E814 – Inter-unit communication fault detected Dealer needed
- E903 – Drive unit settings out of sync Dealer needed
- E905 – Incompatible component combination detected Dealer needed
- E906 – Inter-unit Communication Fault Detected Dealer needed
- E910 – Incompatible component combination detected Dealer needed
- E914 – Drive unit and battery communication fault Dealer needed
- E915 – Incompatible battery fitted to drive unit Dealer needed
- E916 – Drive unit internal fault Dealer needed
- E925 – Battery charger not compatible with battery Fix at home
- E934 – Display loses link to drive unit Dealer needed
- E944 – Shifter to drive unit communication fault Dealer needed
- E973 – Freehub and rear derailleur setting mismatch Dealer needed
- W010 – Drive unit overheat warning Warning
- W011 – Loss of bicycle speed signal Warning
- W012 – Crank fitted in wrong direction Warning
- W013 – Pedal sensor failed to initialise Warning
- W020 – Battery temperature outside operating range Warning
- W030 – Extra assist switch connected to system Warning
- W031 – Chain tension or crank position warning Warning
- W032 – Shifting unit does not match system configuration Warning
- W103 – Sensor initialization warning at startup Warning
- W205 – Sensor initialization failed on start-up Warning
- W206 – Drive unit fault detected by system Warning
- W207 – Travel data update failed warning Warning
- W208 – Sensor initialization did not complete at startup Warning
- W209 – Travel data could not update on display Warning
- W222 – Drive unit CAN connection fault Warning
- W232 – Drive unit accessory power fault Warning
- W233 – Drive unit overheated, accessory power cut Warning
- W240 – Drive Unit Abnormality Detected Warning
- W242 – Light circuit fault in drive unit Warning
- W256 – Battery temperature outside operating range Warning
- W292 – No Speed Signal From Wheel Sensor Warning
- W935 – Cycle computer lost link with drive unit Warning
- W945 – Switch unit communication error detected Warning
- W954 – Rear Shifter Communication Fault Warning
- W960 – Communication error with the drive unit Warning
- W965 – Drive unit and can device mismatch Warning
- W966 – Drive Unit and CAN Device Mismatch Warning
- W967 – E-Bike system lock engaged Information
Manuals and video
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.