2002 Chevrolet Cavalier head lights/tail light

Hi. I have a 2002 Cavalier. The Daytime Running Lights aren't working. When I start the car and put it into gear, the serves light on the dash comes on and starts flashing and I hear a clicking noise and the headlights flicker off and on. When I turn the switch to headlights, the flashing stops but my headlights don't come on and my driver side tail light don't come on but it comes on when I flip on the turn single or when I hit the brakes and only the High-beams works on the driver side only works... the hazards work, turn singles work, and brakes lights work... It's not the bulbs, fuses, relay, multi-function switch, grounds or the 9 pin connector. I need help please.