Headlight issue

[Dgnarvs]

Hello folks!

I discovered a strange problem with my litronic headlights. The driver's side headlight fog lamps were very weak compared to the brightness of the right side fogs. I thought the bulbs were going bad so got some replacement bulbs. However, it didn't help and the driver's side fogs were still 'weak'. Also, when the fogs were on and I signal left, the fogs and signal light appear to be 'relaying' with each other. Grounded?

The right side lights were working fine.

I suppose the wiring inside the headlight assembly itself is going bad. Is there a way to replace the wiring only? Any thoughts on how to fix this?