mystery plug on rear of 4.0 v 6 engine
 

Came across this mystery plug on lr3 near rear fire wall.
Its an intermediary wire extension about 6" long that plugs into another plug clipped onto rear of left cylinder head. The other end of it doesnt seem to plug into anything and its just free floating.

Not sure what this is supposed to plug into as i looked all over the rear of engine and can not figure it out.

I was hoping you might share this email and pictures with friends and Landrover knowledgeable persons?

Thanks and regards,
Arjun