I am having an issue with the electric fans running for more than the 5 minutes others have said it shuts off. The fans will run until I pull the fuse or till it kills the battery, which occurred for the first time while in church. I am guessing a relay or some sensors, just looking to be pointed in the right direction.

You need to post in the correct forum section.

https://www.jaguarforums.com/forum/xj-xj12-x305-57/

Haven't seen this post in X305, but if your still here Smsands you might have a bad radiator thermal switch. It's screwed into the radiator, left side down low. It can be tested. An easy fix although the coolant must be drained and changed out. Come on over to the X305 section for further discussion.