Anti-lock brakes engaging at the wrong times

My 99 Lumina has started doing something weird.

When I hit the brakes (no matter how fast or slow), the anti-locks engage.
After a short time the anti lock brake light comes on and the anti locks do
not engage anymore.


does anyone have an idea what's causing this?


Thanks in advance!

Peter wrote in


> My 99 Lumina has started doing something weird.
>
> When I hit the brakes (no matter how fast or slow), the anti-locks
> engage. After a short time the anti lock brake light comes on and the
> anti locks do not engage anymore.
>
>
> does anyone have an idea what's causing this?
>
>
> Thanks in advance!
>

Have the codes checked it should give you more info whre to look and for
what