My wife's 2003 sunfire has a problem with the day time running lights and I don't know where to find the module. I have followed the wires from the driver's side headlight to the firewall.
Here's what is happening...
When I take the car out of park DLR's flash and show the service light on the dash. She has no low beams but the high beams work fine. The DLR relay clicks when she switches between high & low beam so I assume it to be okay but is there a way to test it and where is that drl module hidden and what does it look like?
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.
I haven't found a resistor for the headlamps typically when daytime running lamps flash or indicator flashes it's because there is an open in the system. It could be as simple as a blown bulb or a open (broken wire) in the wiring harness.If it's not a bulb I would remove both headlamps and start at the drivers side remove all tape and wire loom all the way to the passenger light. I've encounter a problem in the harness before the drivers light @ a splice that rotted away but there are many more along the way that could be the problem. Let me know if you need more info such as schematics.
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SOURCE: DRL problem with 2004 Sunfire
You might have the same problem I did where the wiring harness is corroded. I had to take it to the dealer.
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ok thanks i'll have a look at those.
I have tested for power right at the bulbs and sometimes there is power to only one terminal on the harnesses and sometimes (like now) there is power at both terminals. Same thing with the highbeams bulbs but there is not trouble with them. How is it that there can be power there but the lights do not aluminate? I have confirmed that the bulbs are good.
Low light not working only drl and high light
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