ok i have 2 04 cavaliers and the headlights work on one but only on the high beams. I have changed the DRL relay and that did not work so i put he old one back in but sometimes when i start the car the relay will click really fast? i need help on trying to fix the headlights so i can get rid of this car and focus on my other cav. plz any info will help thanks.

that usually means you have a burnt out bulb somewhere... check all your bulbs over looking for burn outs.. Could also be a short in the wiring somewhere, don't ask me where.. i wouldn't know where to start with that car...

burn out bulb.
in your bulb you have both low and high beam
remove it for inspection

thanks for the help! i had to run all new wires to the main light harness by/under the battery. now they work great.

Was it your pass or driver side that was out? My pass side went out and I still haven't found a cure. I've changed out the bulbs but that didn't help.