I posted this over on Rennlist, but thought I would try here too.
I just refurbished a set of litronics and retrofit to my 99 986. I installed with a factory wiring loom and a control box from ebay. The lights light up, but the servo action doesn't seem to be right. When turning the key to the accessory position the headlights drop and jitter then raise back up. The jitter is what seems odd as other cars I own with xenon lights just move up and down. The second issue is that they do not raise up when I select the bright lights.
I double checked the wiring. The control module is getting voltage when the brights are turned on. With control module unplugged the lights no not move at all when the key is turned. The control module I have is 996 618 051 10. Here is a video I took of what happens when I turn the key.
https://youtu.be/cYeZAgxJG3A
Here is the finished product.
Sanded with 800,1000,1500,2000,3000, then buffed and protected with Opti-Lens. The aftermarket corners don't exactly match though.
