[MrE]

I feel like an idiot because I don't know the answer to my question. I own a 1986 all mechanical Newell. It had the DD 8V92 and Allison HT740 transmission.  Long story short, I decided to replace the drive train. I bought a Denver RTD 2000 transit bus with a Cummins ISM and ZF Ecomat 2 transmission for a driveline swap. It came with an I/O Controls Dinex G multiplex system. For those interested, it's a 2000 Orion V with a Cummins ISM and ZF Ecomat 2 HP HP592C transmission.

We've got the ISM and ZF transmission in the 86 Newell, but not getting the transmission to shift into any gear. The Newell is in Missouri and I'm in Boise Idaho. I've got bids, and it's $7500 to tow it to Boise for me to diagnose. My alternative is to drive my Range Rover to Missouri with adequate tools to diagnose the problem.

To my knowledge, all I need is the transmission ECU and engine ECU communicating with J1939 CAN bus for it to work. Fortunately, J1939 is relatively standardized, unlike auto manufactures with their CAN bus messages. I have the tools to monitor the CAN bus messages, but want to make sure that if I load up my Range Rover with my tools and monitoring software I'll be able to get my coach operable.

Obviously with my 1986 Newell I don't need a PLC logic ladder to prevent me from pulling away from the curb because my non-existant wheelchair ramp is extended.