i thought i would try the tailgate today using the fob, lo and behold it opened and lifted to the fully open position, first time in months ( but it would not shut),
so at least i know the lift motor works. A bit of extra info, the car has stood for a very long time and not used much by previous owner, its a 2014 model with only 15000 on the clock.
i have bought a diagnostic tester but as yet have not located the 16 pin socket
its above the pedals ( i am told) will use a mirror tomorrow .
Thanks for the suggestion Steve