2003 sunfire lights stay on so for now i am

Right now, I'm thinking the head lamp switch assembly has a problem? See the wire color in the top of head lamp, that is voltage, fuse protected, hot all the time. When problem is ongoing, you could use a test lite, check for voltage at fuse circuit?
The headlamp switch assembly is located on headlamp ground circuit. There could be a wiring problem, somewhere. I can only help with testing.

if you have to hold the switch so the high beams stay on then that indicates a bad/worn switch,you could have 2 problems the day time running light relay may have a problem with it.i would first replace the headlight switch at the base of the steering colume as by the info you supply its not changing to the high beam side without holding the switch in position.

First check the R/S headlight fuse in the dash fuse panel (left side), second make sure the R/S low beam headlight bulb filament isn't blown, both these scenarios will do what you are saying. The DRL's work when both low beam lights are in series, thus only 6v going to each bulb at reduced brilliance. The high beam is a totally separate circuit controlled by the multifunction switch. The DRL relay is controlled by the Body Control Module, grounded there, and it will also illuminate the service vehicle soon light. It could also be a bad ground at G204. Its on the steering column support bracket.

Check your fuses.

I just worked on a Pontiac Sunfire on a light issue. The driving lights are on a separate switch on a 2003 from the dimmer switch. Have you checked to make sure both low beam light bulbs for your headlights are not burnt out on low beam? Have you checked to make sure you have power to the low beam where the connector connects onto the bulb?

wraun_1962 .......your DRL relay is in your fuse panel on the left side of your dash open drivers door to access it

Fuse panel left side of dash. It's not a typical module it's only a relay. Your instrument cluster has a microprocessor which energizes the relay. In another post someone said there is a resistor behind right headlamp that could be your problem, I haven't as of yet checked the schematics to confirm but sounds right.

sounds like either a wiring loom is shorting across somewhere ??where ----best of british to finding it

make sure the right # bulbs are in the car check the dealer had this problem once replaced bulbs with oem # all was good

i have a 2003 sunfire that did that , what i found was threr is a wire harness under the battery that is laying on top of the transmission and wears threw the cassing.