'94 Cavalier ABS light on and brake lights not working - both happened at same time?

[Kangaroo]

Hi

I have checked the fuses and they seem ok.
ABS not working and light stays while driving.
Was thinking maybe a relay has failed or something(not too expensive)

Anyone able to help me out with this one?

Thanks

 

[malcolm burton]

Most likely a wheel speed sensor, bit It'll need scanning to be certain.

 

[Ken Morrow]

Most likely a wheel speed sensor, bit It'll need scanning to be certain.

I think that it is most likely the brake pedal switch.
I had the same symptoms on an Astra.
Switch was sticking open-circuit.
It would work for a while if wiggled. Try jamming the brake pedal down with
a krooklock or similar wedged to the seat, then operate the swich manually.
Get someone to watch the brake lights.
Replacement switch was about £10.

(I later had an open-circuit speed sensor. This also caused the ABS light to
illuminate, but brake lights continued to operate normally).

Good Luck,

Ken.