2003 Chevy Trailblazer ABS Light On

Brakes problem
2003 Chevy Trailblazer 6 cyl Four Wheel Drive Automatic

ABS Light is On. After I turned off engine hissing or low wine from vechile continued removed abs fuse from fuse box noise went away brakes work fine but abs light and parking brake light are illuminated on panel display could you tell me what im dealing with here Thanks