89 S10 ABS Error code 3

Hi Everyone.

My Brake light flashes 3 times then one long flash. This looks to be a code 3 open dump valve. Does anyone know wher the dump valve is located ?
In my readings, the modulator/dump valve are the same.

Anyone know anything about this ?

Suggestions or advice is greatly appreciated.

Allan

Hello everyone,

The dump valve contact wire harness was corroded. I eplaced it, and reset my ecmb and brake circuit.

Everything works fine.

So if someone has an abs brake problem really check all the wiring.

Allan