Table of Contents Toggle TL;DR Quick fix (safe DIY first) 60-second checks (the things that cause repeat codes) What usually causes E025 When to stop DIY (go to a Shimano STEPS dealer) Don’t do this Related guides (closed-loop) Sources (official manuals) TL;DR Quick Specs Comparison Feature Spec Key Specification 1 – Key Specification 2 –…
Table of Contents Toggle TL;DR Quick fix (safe DIY first) 60-second checks (the things that cause repeat codes) What usually causes E024 When to stop DIY (go to a Shimano STEPS dealer) Don’t do this Related guides (closed-loop) Sources (official manuals) TL;DR Quick Specs Comparison Feature Spec Key Specification 1 – Key Specification 2 –…
TL;DR E023 = An electrical failure inside the battery is indicated; system may not start. Official next step: Turn power off then on with the battery power button. If it persists, consult a dealer/distributor. Quick fix (safe DIY first) Power the system off and back on using the battery power button. If you have a…
TL;DR E022 = Battery connected to the drive unit does not conform to system standards; system may not start. Official next step: Restart (battery power) and consult an agency/dealer. Quick fix (safe DIY first) Power off and re-seat the battery firmly. Restart the system using the battery power switch/button. If it persists, stop DIY—this usually…
TL;DR E021 = Battery conforms to system standards but is not supported by the system. Official next step: Consult an agency/dealer (some manuals also note restarting). Quick fix (safe DIY first) Restart the system (battery power switch/button). Confirm you’re using a supported Shimano STEPS battery for your drive unit generation. If the battery was recently…
TL;DR E020 = A communication error between the battery and drive unit was detected. Official next step: Check that the cable between drive unit and battery is properly connected. If it persists, consult a dealer/agency. Quick fix (safe DIY first) Power off and remove the battery (if removable), then re-seat it firmly and latch it….
TL;DR E014 = The speed sensor may be installed in the wrong position; assistance may stop. Official next step: Check speed sensor position; ride briefly after correcting. If not resolved, consult a dealer/agency. Quick fix (safe DIY first) Locate the speed sensor and magnet (often on chainstay/rotor area). Align the magnet to pass the sensor…
TL;DR E013 = An anomaly/error was detected in the drive unit firmware; assistance may stop. Official next step: If it persists, contact a dealer/agency. (Some manuals also suggest checking the speed sensor placement first.) Quick fix (safe DIY first) Restart the system (battery power switch/button). If your bike uses a spoke magnet + speed sensor,…
TL;DR E012 = Torque sensor initialization failed; assistance may stop. Official next step: Restart with no pressure on the pedals. Shimano also notes checking chain tension (on systems where that applies). If unresolved, consult an agency. Quick fix (safe DIY first) Stop, put a foot down, and make sure there is no load on the…
Most common cause: a loose or corroded cable connection between the battery, motor, display, or speed sensor. The E010 code means the system lost communication between components. In most cases, inspecting and reseating the connectors resolves the error. If the error does not clear after reseating all visible connectors and performing a hard reset, move…
