Bosch error 861: ABS power supply fault

What it means

There is a fault in the power supply to the ABS.

Likely causes

• ABS power supply problem

Symptoms

• Code 861 on the display
• ABS warning light on

How to fix it

1. Switch the eBike system off, wait a few seconds, then switch it on again.
2. If the code comes back, contact your Bosch eBike dealer.

How urgent is it?

Do not rely on ABS until a Bosch eBike dealer has checked it.

Applies to

• Bosch classic system (Intuvia, Nyon, Kiox, Purion, SmartphoneHub)

More Bosch codes

• 850 Internal ABS fault
• 889 Internal ABS fault
• 860 ABS power supply fault
• 870 ABS communication error
• 871 ABS communication error
• 880 ABS communication error

All 123 Bosch codes →