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…
The Shimano STEPS E010 error code signifies a communication breakdown between your electric bicycle’s core components, typically the battery and the drive unit. This error prevents the system from powering on or functioning, similar to how a faulty ignition switch can stop a car from starting. Resolving this often starts with simple physical checks, much…
TL;DR Bosch error code 640 indicates an internal battery fault. Official guidance: restart the system; if it persists, contact your Bosch eBike dealer. Do this first: 1. Restart the system (off → wait 10–20 seconds → on). 2. Reseat the battery (remove → reinsert) and restart if it returns. 3. If it persists, contact a…
TL;DR Bosch error code 603 indicates an internal battery fault. Official guidance: restart the system; if it persists, contact your Bosch eBike dealer. Do this first: 1. Restart the system (off → wait 10–20 seconds → on). 2. Reseat the battery (remove → reinsert) and restart if it returns. 3. If it persists, contact a…
TL;DR Bosch error code 593 indicates a configuration error. Official guidance: restart the system; if it persists, contact your Bosch eBike dealer. Do this first: 1. Restart the system (off → wait 10–20 seconds → on). 2. If you recently changed a display/battery/component, note what changed (helps dealer diagnostics). 3. If it persists, contact a…
