My 1992 Chevy K-1500 truck has ABS system. The brake light is staying on. I can reset this by turning the ignition off or unplugging the ABS module. Is it possible that the priority valve is sticking. there are no leaks. The brakes work fine while the brake light is illuminated. I have all new hydrulic hoses and tubing in the brake system as well as new front pads, disc, rear brake shoes and drums. I installed a servicable module for another K-1500 truck but the problem remains the same.

 

no, this light is for either the ebrake cable being pulled. or air in the brake lines.

 

Try bleeding your lines and see if it goes off..