E-bike reference

42 e-bike error codes, explained in plain language.

What does the code on your display mean? Causes, roadside self-help and sources — for Bosch, Shimano STEPS, Yamaha and more. Free and maintained with love for the detail. Enjoy the ride!

Bosch eBike Systems Remote

414

Operating unit connection problem

The drive cannot communicate reliably with the operating unit (remote) or on-board computer. The cause is usually a loose plug connection, a damaged cable or corroded contacts between remote, display holder and drive unit. Bosch recommends having the connections checked.

Drive system
Bosch eBike Systems
Category
Remote
Motor behavior
behavior unclear
DIY-friendly?
possible

Roadside self-help

  1. Remove the display from its holder, check contacts and reseat it
  2. Check visible plugs and cables at the remote for tight fit
  3. Restart the system

Possible causes

  • Loose plug connection high
  • Damaged or pinched cable medium
  • Corroded or dirty contacts medium

Symptoms

  • Error 414 on the display
  • Remote buttons intermittently without function
  • Display loses connection to the drive

Inspection / repair

  • Difficulty: medium
  • DIY: possible
  • no dealer tool needed
  • Component: control unit
  • Component: display holder
  • Component: wiring harness

Applies to

Sources

How to read e-bike error codes

Unlike cars (OBD-II), e-bike codes are manufacturer-specific: the same number means something different on a Bosch than on a Shimano system. What matters is always the combination of drive system and code.