Chevrolet Repair: Headlights wont work, daytime running lights, drl module

Question
I have a 2000 s10 chevy and the headlights will not turn on at all, I have taken my truck to the dealer and they could not find anything. They had my truck for two weeks and suddenly the lights turn on. this was back in 2001 Today I have the same problem with the headlights they will not work i have checked all fuses and lights any advice

Answer
Hi Hector... does this truck have daytime running lights...if it does replace the drl module.or by pass it...if not check for power in at the headlight switch and then power out to the lights. if power in and nothing out change the switch, if power both ways trace the circut and find the open... hope this helps