Bosch error 820: Front wheel speed sensor wire fault (ABS)

What it means

There is a fault in the wire to the front wheel speed sensor used by the ABS.

Likely causes

• Damaged or disconnected front sensor wire

Symptoms

• Code 820 on the display
• ABS warning light on

How to fix it

1. 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

• 7xx Fault in a third-party component
• 800 Internal ABS fault
• 810 Implausible wheel speed sensor signals (ABS)
• 821 Implausible front wheel speed signals (ABS)
• 822 Implausible front wheel speed signals (ABS)
• 823 Implausible front wheel speed signals (ABS)

All 123 Bosch codes →