hey got a 2000 EM1 the car was sitting for a bit, enough for the battery to drain out, I recharged the battery and got it going but for some reason now the ABS kicks off randomly every now and then for no reason. Even at low speeds it will go off, no CEL or ABS lights.

I've tried searching for clues on how to test these as it feels a little unsafe driving it, so far I've read about the speed sensors or a possible hub that can be checked, I can't seem to find guides on how to test these things, can anyone point me in the right direction?

Thanks