Good afternoon,
The ABS does not need to be reset. It resets itself every time you turn the key off and then back on.
If you have a rear-wheel locked up, it is a mechanical issue with the brakes, not the ABS system.
https://www.2carpros.com/articles/how-to-replace-a-wheel-cylinder
It could be a frozen emergency brake cable or a wheel cylinder that is frozen and will not retract.
The brake hose could also be bad not allowing fluid to return to the master cylinder.
Roy
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Sunday, February 21st, 2021 AT 1:11 PM