I need some help diagnosing my headlight problem. The DRL on my passenger side has been going out for the past few months. Oddly though, both DRLs seem to work most of the time when I start the car, but then after 5 mins the passenger side light goes out. The passenger side does not go out after i hit a bump or anything, it just regularly goes out after a few mins but them might come back on later in the drive.

Note that both highbeams work.

I don't really know what's going on so i wanted to get some input before getting new bulbs...ect.

Here are the possibilities i've thought of:
-possible that the passenger side bulb is shot, but then why would it work sometimes and why would the driver side DRL work if the DRLs are wired in a series.
- maybe there DRL module has gone bad (i.e. a bad solder).
-maybe a short or bad wiring somewhere. note that I did tuck the passenger side harness last year and therefore had to extend and tuck the passenger side headlight harness. But i resoldered and taped everything so I dont think loose wiring would cause the problem.


Any thoughts ???

 

Sounds like a DRL module that has solders going bad dude! Time to crack that case apart and investigate

 

opened up that sucker and found some loose solders... all is good now