Bosch (Purion, Intuvia, Kiox, Nyon) · Speed sensor
Bosch (Purion, Intuvia, Kiox, Nyon) error code 504
The system has detected a tampered speed signal and reduced the motor assistance
What you can check
Remove any tuning kit and check that the spoke magnet is lined up with the sensor. Switch the bike off and on again.
Dealer if the fault comes back
Trolda cannot read Bosch (Purion, Intuvia, Kiox, Nyon) motors yet. The code list is here to help you anyway.
Same part: Speed sensor
Sources
- Bosch Kiox BUI330 original instructions (1 270 020 Kde), error codes — copy hosted by emtb-news.de (2020-08-25, published by a dealer or bike brand)
Explained in Trolda's own words from the manufacturer's public documentation. Trolda is not affiliated with the manufacturer. If in doubt, ask your dealer.
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