I have a 2006 subaru impreza. About a year ago, the headlight burnt out. I went to replace it and realized that it wasn't the headlight. It was the wiring harness/socket that had burnt up. So, I replaced it with a new harness. I used good waterproof connectors and all was well. This weekend, the light burnt out again. Once again, the bulb was fine. The harness was burnt up. Why is it doing this? Is there an easy way to fix it? I'm getting worried because I'm running our of slack wire to keep doing this.
Turns out it's a pretty common problem. Some companies have come out with replacement harnesses with ceramic connectors so they won't melt. Go to this link and scroll down to the area that talks about replacement headlight connectors
