Lesley1802

Hi all. First time post and looking for some help please. my car is a uk jaguar x type 2005 2.0 diesel. last night when driving in town, a smell came from the fan. We thought nothing of it, thinking it was from outside. Although it happened again a short while later. Then, while engine idling, the battery light came on and the smell happened again. we switched engine off and restarted. Engine light stayed off but came on after a moment. We researched online and did the tests (engine on lights on press brake etc etc) but no dimming of lights. looking under the bonnet today in daylight we can see a wire that looks like it's hanging loose but can't see where it should go. (Pic attached) if anyone has any ideas or solutions I'd be most grateful :)