DRL not working / All fuses, relays and bulbs good

[LoJac963]

The HID's should be wired completely separate from the DRL's and should have nothing to do with them not working.

As FYR said double check your wire and diode that it's in the right direction for the DRL mod. That honestly is the only thing that has changed and they no longer work.

[Inspignant]

Thanks guys, I will be digging into this, this weekend. Seems I am having more issues now. The Cruise control is not working now, and it worked last week. Will update with findings. Thanks again.

[glennf1]

I just did this mod too and the same thing happened. I metered it and there is no longer voltage coming from the BCM. Apparantly, the voltage going backwards to the BCM from doing the mod fries the transistor that switches it. Now I just have the DRL on with the headlights. I'll just live with it instead of buying another BCM module. Others have gone years with no problems.

[LoJac963]

Oh **** I hope that's not what happens when you install it backyards!!

Hope you guys get this worked out. Keep us updated!

[Inspignant]

Im sure installing it backwards could probably fry something but I am positive that is not the case. I do however think that the Anti flicker capacitor that is installed in the HID system could be the reason that the DRL's are not working. I have emailed the company and hope to hear back from them soon.

Spending over 90 hours a week working on private jets is all fun and games but do I really want to go home and spend more time troublshooting an electrical problem when I could come here and possibly get lucky and find the answer to my problem.

(As he says in a sarcastic tone and quoting a line from THE MASK)

I'd like to think so, Haa Haa

[Inspignant]

And yes, I will keep you posted.

[Inspignant]

So I took it to the dealer and they were not able to find the problem and they used to be a hummer dealer, WTF. They tested the BCM and it was fine. So Last night I put everything back to OEM because I had a bad ballast for one of the HID's and the DRL's still do not come on. Im at the point now that if when I check the relay and fuse tonight, if they are good, then I am wiring it straight in with the headlights. Stick a fork in it, I'm tired of jacking with it.