What does Bosch (Purion, Intuvia, Kiox, Nyon) error code 503 mean?

Q: What does Bosch (Purion, Intuvia, Kiox, Nyon) error code 503 mean?

The speed sensor isn’t giving a correct signal Check that the spoke magnet is secure and passes right by the sensor. Switch the bike off and on again.

Bosch (Purion, Intuvia, Kiox, Nyon) · Speed sensor

Bosch (Purion, Intuvia, Kiox, Nyon) error code 503

The speed sensor isn’t giving a correct signal

What you can check

Check that the spoke magnet is secure and passes right by 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

All Bosch (Purion, Intuvia, Kiox, Nyon) error codes

Sources

Bosch Intuvia BUI251/BUI255 original instructions (1 270 020 XBI), error code table (2018-05-14)

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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