How to fix daytime running lights - 2005 Jeep Wrangler

this sounds like the DTRL module is bad and needs replacing. the fog lights the bulbs them self could be burnt out or the switch for the lights has a problem.

Theres a sensor in the middle of the dash by the front windshield that detects sunlight and triggers the automatic headlights. The main headlights and daytime running lights might be on a different circuit, in which case they daytime running lamps would turn off at night and the main headlights would turn on, indicating the main headlights arent working and the daytime running lamps are working as intended.

I would check all the fuses related to headlights, check the bulbs and check the switch, then last the light sensor on the dash.

That DRL light on your dash indicates that your Daytime Running Lights are on. It's supposed to be on, nothing wrong with your bulbs.

The DRL light is lit when the daytime running lights are NOT lit. I just did a fix on my 2001 Accord thanks to this website: http://www.nyx.net/~smanley/hondadrlfix/

turn on your headlights during the day. The modular is not repairable

do your daytime running lights work?if not check the daytime running light module

Do your high beam headlights work? If you have a burnt high beam light the daytime running lights won't work and then the service vehicle soon light comes on.

i had a similar problem with my 97 a4 2.8. i changed my daytime running lights relay and it solved the problem. its located under the steering wheel behind the knee bolster

either the headlight relay is stuck on. or the daytime running light module or relay is bad. to confirm find the relay center and switch the headlight relay out with another relay with the same part# on it. there should several in the relay center with the same part #. If this fixes the problem get a replacement relay. if not try switching out the relay for the daytime running lights. if no dice then unplug the daytime running light module.

mike

did you try removing the DRL fuse to disable the daytime running lights, and double check your bulbs and fuses for the regular headlights? I'm not much of a mechanic but I'll take that fuse box before messing with anything else.