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Pinion MGU (FIT) · Gears

Pinion MGU (FIT) error code 4D-01

Gear fault caused by a bug in the motor software

What you can check

You cannot fix this yourself. Your dealer needs to update the motor software (fixed from version 1.2.1).

A job for your dealer

Trolda reads live data from Pinion MGU (FIT) bikes. What Trolda shows on your bike

Same part: Gears

All Pinion MGU (FIT) error codes

Sources

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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Trolda connects to your Pinion MGU (FIT) bike and shows what you did, what the motor did, and what it cost the battery.

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