The saga continues.... I've had a new actuator, old FDCM replaced with one from breaker, pre-flash. The truck has just driven across Europe with no issues. Uk to East Germany. The truck has also had every fluid changed as part of the 80k service and low and behold, service 4wd light has come on at motorway speeds. The light goes off after I slow to 50-60 mph, and drives perfectly. I've read that a ground wire may cause this but don't know where to look, the common denominator is the speed as it's happened twice on the motorway. Also, could the transfer case fluid be expanding when driving and causing this... Please someone help as this is driving me off my head and I'm now paying out of my own pocket. Any advice on wires to be checked would be excellent. I can see a Landrover with my name on it............. This must be causing a lot of Jeep drivers to switch allegiance at a rapid rate.