NO HEADLIGHTS

I HAVE A 1998 CHEV PRISM LSI.....MY NIGHT LIGHTS QUIT WORKING,SO I CHANGED MY HALOGEN BULBS,STILL NO NIGHT LIGHTS,SO I CHANGED MY LIGHT SWITCH,STILL THE SAME PROBLEM....WHEN I TURN MY CAR ON MY DAYTIME RUNNING LIGHTS COME ON,BUT JUST FOR A FEW MINUTES....NOW I DO HAVE PARKLIGHTS,BACKUP LIGHTS,BRAKE LIGHTS,AND TURN SIGNALS,AND WHEN I TURN TO PUT MY NIGHT LIGHTS ON MY DAYTIME RUNNING LIGHTS GO OFF...ANY IDEAS WHAT IT COULD BE?  

i could not find a 98 wiring diagram.. but for a 2000 there are 2 or 3 relays.. depending on options on the car..

a day time running light module..

and a  pair of diodes in the underhood relay box to stop the feed back or power from the daytime running lights  back through the headlight circuit..  or maybe the other way... as the headlights run at full voltage .. the DRL run at reduced voltage.. hmm...  


there are 4 or 5 wiring diagrams for 2000 over at autozone.com...     if you need your exact.. you will have to get them from alldatadiy.com or eautorepair.net      having the exact info will make working on them easier..


it really sounds more and more like a relay.. or the power to the relay...   and dont forget that these work backwards... at least in the 2000 diagrams..   the power goes to the common connector..  the low  and hi beams are activated by various circuits that pull the low beam circuit to ground or the hight beam circuit..

just curious...   do the headlights come on high beam when you pull up on the flash to pass ....  you could have lost the ground in the head lamp switch wiring ...

someone else will know more than me about these...  

no high beam or low beam,like i said when i turn my light switch on for my nightlights nothing happens,but my daytime running lights go off,but everything else works......  

ok.. change the 2 headlight relays.. and the daytime running light module.. that will fix it..