The first ECU queried in the short-test is VG, or the transfer case ECU. The exclamation point to the right is telling us that SDS can't communicate with it!!! Also, most of the CAN codes are CURRENT, which means the problem is happening NOW!!! A simple CAN voltage test is the first thing that needs to be done. With the key ON, the CAN H should be around 2.6 volts and CAN L around 2.4. If not, the VG should be disconnected (it's under the center console to the rear of the shifter), and the voltage re-checked. I'd also look very closely at the wires going to the transfer case motor. I won't go into too much detail. The dealer guys should already know this, or at least one of them should.

This isn't really that complicated a diagnosis. There must be more to the story though. The short-test is quite clear as far as I'm concerned.