Checking the Basics
First my passager side signal/ day time light went out, after checking the bulb I found the socket was full of crud, so I bought one for $5 at a salvage lot. After changing it the turn signal/ day time running would still not work, but the parking light turned on at night. I did all this reserch and was about to change the DRL module and by chance I check the bulb and it turned out to be a bad bulb (which by the way was brand new). It has be about 3 days and all is well.
The other is that my SES light turned on and it was the AIR System, I thought it was the pump but after checking the price I decided to first check all the connections and the fuse. It turns out I had a burnt out fuse! 2 weeks and no problems.
To make along story short, always check the easiest fix first, that is usually what it wrong.
Just my 2 cents.
As simple as that sounds, sometimes we all have a bad habit of looking past the easy stuff and trying to find a more complicated solution......





