I have a 2014 JK built in Canada. It has day time driving lights ( apparently all vehicles suppose to have it up there). I should of said I had day time driving lights, they don’t work any more. I have a schematics from mitchell 1. And the schematics from Jeep are worst. Anybody know how it is routed or anything about the subject. Thanks Al Cassell

 

DRL's are a programmed feature. If the low beam headlamps work, it's not electrical. DRL's just supply a lower voltage to the low beams. They only light up with the e-brake off with the transmission in gear (auto trans only). By any chance, was it in park or the e-brake on when checked?

 

I have low beam when I rotate the light switch, and hi beam works. I just lost DRL about a month ago. park brake is fully off. when I put it in gear no DRL. Where dose the lower voltage come from? Thanks Al Cassell

 

The TIPM, probably PWM (pulse width modulation). Sounds like DRL was turned off. Was there any work done just before it stopped working? There are OBD2 tools that program DRL on and off, most common being the AEV procal.

 

Thanks Mr.T. I’ll do more investigation and let you know. Al Cassell

 

Jscan can also do the DRL if he just needs it turned back on.