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…
Table of Contents Toggle TL;DR What this code means (Bosch official intent) Quick fixes (safe DIY first) 1) Proper restart (the Bosch way) 2) 60-second check 3) If it started after rain / washing Most common causes When to stop DIY and go to a Bosch dealer Related guides on this site (closed-loop) Notes (practical)…
Table of Contents Toggle TL;DR What this code means (Bosch official intent) Quick fixes (safe DIY first) 1) Proper restart (the Bosch way) 2) 60-second check 3) If it started after rain / washing Most common causes When to stop DIY and go to a Bosch dealer Related guides on this site (closed-loop) Notes (practical)…
Table of Contents Toggle TL;DR What this code means (Bosch official intent) Quick fixes (safe DIY first) 1) Proper restart (the Bosch way) 2) 60-second check 3) If it started after rain / washing Most common causes When to stop DIY and go to a Bosch dealer Related guides on this site (closed-loop) Notes (practical)…
Table of Contents Toggle TL;DR What this code means (Bosch official intent) Quick fixes (safe DIY first) 1) Proper restart (the Bosch way) 2) 60-second check 3) If it started after rain / washing Most common causes When to stop DIY and go to a Bosch dealer Related guides on this site (closed-loop) Notes (practical)…
Table of Contents Toggle TL;DR What this code means (Bosch official intent) Quick fixes (safe DIY first) 1) Proper restart (the Bosch way) 2) 60-second check 3) If it started after rain / washing Most common causes When to stop DIY and go to a Bosch dealer Related guides on this site (closed-loop) Notes (practical)…
