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!

Shimano STEPS System / software

W032

Installed shifting unit does not match system configuration

A shifting unit (electronic Di2 component) that differs from the stored system configuration has been detected. Electronic shifting will not work until the configuration matches the installed hardware. This typically appears after a component swap and must be resolved by checking the configuration at the dealer.

Drive system
Shimano STEPS
Category
System / software
Motor behavior
behavior unclear
DIY-friendly?
shop recommended

Roadside self-help

  1. Restart the system once; if the warning remains, contact the shop that built or serviced the bike.

Possible causes

  • Shifting unit installed that differs from the original system setup high
  • System configuration not updated after a component swap medium

Symptoms

  • Electronic gear shifting does not work
  • W032 appears after a shifting component was replaced

Inspection / repair

  • Difficulty: medium
  • DIY: shop recommended
  • dealer diagnostic tool required
  • Component: di2 shifting unit
  • Component: system configuration

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.