Observed arrival · 2026-09-19

E-bike error codes, explained by mechanics

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Editorial interest 74/100 Selection signal · not a rating of the site

A searchable troubleshooting reference covering 178 e-bike error codes across 10 drive systems and brands.

Landing page captured for the 2026-09-19 issue.

For: E-bike riders diagnosing a displayed fault code
Worth noticing: The reference lists 178 codes across 10 systems, including Bosch, Bafang, VanMoof, Shimano STEPS, Yamaha, and Rad Power Bikes.

Field notes

The homepage provides two routes into the reference: an exact-code lookup and brand or system browsing. Coverage is uneven by brand, ranging from 50 Bosch codes and 36 Bafang codes to three Tongsheng TSDZ2 codes. It also handles failures with no displayed code, including batteries that will not charge, displays that stay off, loss of pedal assist, and cutouts while riding.

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