Most likely the pdm(fuse box) or possibly the fcm after having a right low beam issue and lots if research its normally the pdm. I had 11.7v at both the low and high beam connector on both sides. Checked with test light it only lit on the left low beam. So with our computer controlled lights a multi-meter can fool ya. I ran a jumper wire from my left low beam connector to the right. I have to flash the highs and go back to the lows for them to come on. I'm guessing thats tricking the computer. I'll worry about my pdm when more stuff screws up. No reason to waste like $600 just to get rid of my lamp out light.