Brose Error Codes

Reviewed by certified eBike technicians · Last updated July 30, 2026

3 diagnostic codes for Brose e-bike systems.

Error 20

Battery temperature warning — battery outside optimal 10-40°C range

Drive S/Drive T/Drive C Error 04

Cadence sensor error — pedal cadence signal lost or reading outside expected range

Drive C/Drive C mag/Drive S Mag Error 10

Motor position sensor error — rotor position signal lost or out of range

Drive S/Drive T/Drive C/Drive S Mag

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