brake warning light stays lit as soon as you turn key on

replaced brakes front and back. new wheel cylinders and calipers. even new brake hoses. pressure bled with motive-pressure bleeder. still warning light stays on. should mention totally removed ABS system. connected brake lines directly from master cylinder to combination valve 1/4" line to back and 3/16 line split by 3-way connector. also in case your wondering problem was like that before i discontinued ABS. hope you can give me some insight to what it good be. thank you