Bosch Intuvia (BUI255) error codes, 2024 manual with ABS codes · Bosch Intuvia (2024, with ABS)
Error 831 on Bosch Intuvia (2024, with ABS)
What it means + how to fix it From the manual
Quick answer
Error 831 on the Bosch Intuvia (BUI255), 2024 manual with ABS codes means “Implausible signals from the rear wheel speed sensor.” Most likely cause: a fault in the ABS (anti-lock braking system), its wheel speed sensors or their wiring. Try this first: turn it off and on again.
Some e-bikes have ABS, which stops a wheel locking when you brake hard. This code means the ABS found a fault and may not work until it's fixed. Brake gently and carefully, and have a dealer for your bike's system check it.
Step-by-step checklist
Work from the top. Steps go from free and easy to shop jobs. Switch the bike off before touching any connector. Tick each step as you go. Your progress is saved on this device.
When it's time for a shop: if you've worked through every step and the problem is still there, take the bike to an e-bike shop. Bring your notes on when it happens, plus the code.