Error codes for the Hiboy Titan Pro electric scooter, from Hiboy's official FAQ page.
About the Hiboy Titan Pro electric scooter
Hiboy's FAQ lists E01, E02/E06, E03/E07 and E05 for the Titan Pro. The same code numbers mean different things on the Titan, so check your model name. source
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Hiboy Titan Pro electric scooter error codes, from the official source. 6 codes.