[Austin113]

I have a 14 Grand Cherokee Summit with HID bulbs. I recently noticed that my driver side bulb went completely out and I have tried everything I can think of and can't get it to work.

Things I've tried with no luck:
-Tried switching working passenger side bulb to driver
-Bought two new xenon bulbs
-Bought a new ballast
-Switched the working passenger side ballast to the driver side
-Checked both driver and passenger headlight fuses

At this point I'm lost on what to try next. I see on the part diagram that there is an igniter for the bulb but, to me, it seems that if that was bad the bulb would be dim not completely out but I'm just guessing. Does anyone have any ideas?

 

[Doppleganger]

The ignitor is part of the bulb on the D3S bulbs. Did you happen to use a multimeter to see if you're getting +12v to the ballast? I don't have the pinout for the ballast handy, but you should be able to find that.

 

[Austin113]

The ignitor is part of the bulb on the D3S bulbs. Did you happen to use a multimeter to see if you're getting +12v to the ballast? I don't have the pinout for the ballast handy, but you should be able to find that.

I ended up finding the issue. Somehow the plug on the headlight assembly that accepts the ballast module came loose and pushed into the headlight housing. The retaining clips that hold the receptacle broke and I believe it just vibrated loose over time until the headlight stopped working.

Thanks for the input.