Diesel Pusher Transmission codes.
Mine is also a 1994 with Allison Model MD3060 transmission., We also had the same problems. Allison was great to have me dial the codes on the shifter while on the phone until they made sense. They diagnosed it and sent me to the local Allison approved shop for the correct repair. Call their 800 # and ask for Service Advice.
I'd give you #, but it's in my coach 600 miles away.
Turned out the ECU was bad and the new one cost $2172.99.
Now I'm doing rear brake calipers @ $593 each, rotors at $139 each and all new hoses. With shipping $1600 so far in parts, p;us two mew tires at $240 each.
Good thing I love it, because we've only got 1100 miles this month and the cost per mile is getting up there. However I know and trust the coach because I fix anything that needs it so it won't let me down on the road.
"The Roadhouse" our Land Yachts name