I recently acquired a 2000 xj8 and the previous owner decided to wire things together to pass it as a "working" car. I've already fixed one wire that they had tied into the alternator that didn't have issues. The next problem is a plug that runs on the driver side wheel well and under the break booster can anyone tell me what that plug powers? (Pointing to plug I'm picture given) any help would be nice.

 

Good picture but this is the later XJ forum for the 2009+ cars.
Maybe a moderator could move it to the right section where you will be more likely to get a correct answer?
.
.
.

 

i just posted to other thread thanks for the tip still helpful