I've had this solved now after spending (to me anyways) a lot of £££. The replacement of the I/O gearbox sensors didn't work so the garage went for the TCM. It was corroded and also had a section missing from one corner! Why did Chrysler think the passenger wheel arch was a good place to mount something electrical?? :unsure:Anyways, the TCM was changed and normal gear service was resumed I hope this is the last of my problems with my van as I do love it to bits