Thanks, Warwick, for the info that sounds very promising I did try the goldcar emulator with no luck, but I think the wcm was locked up, so that's where my troubles are.
I sent all parts ecu, bcm, wcm, key, and internal lock module off and apparently, it has gone missing in the post. Still waiting on Australia post and the repairer to get back to me with an outcome.
I know jeeps are expensive and stressful, but this is way out there. But I do like the WH, so will keep trying.