06-17-2023, 06:30 PM
Jim -
It may be of little help given the age difference of our coaches, but I had a similar experience (wouldn't go into gear, throwing lots of transmission codes) and it turned out to be the accident avoidance (Vorad) CPU going bad and corrupting the J1939 bus. The ridiculously simple resolution (reached after expenditure of several weeks and AMUs) was to unplug the Vorad CPU - it had nothing to do with the transmission itself. Jimmy from Newell service diagnosed the issue/resolution. I hope you find a similarly simple resolution.
R/S,
db
It may be of little help given the age difference of our coaches, but I had a similar experience (wouldn't go into gear, throwing lots of transmission codes) and it turned out to be the accident avoidance (Vorad) CPU going bad and corrupting the J1939 bus. The ridiculously simple resolution (reached after expenditure of several weeks and AMUs) was to unplug the Vorad CPU - it had nothing to do with the transmission itself. Jimmy from Newell service diagnosed the issue/resolution. I hope you find a similarly simple resolution.
R/S,
db
#1244
2008 C-15/ZF12
Towing Jeep Gladiator (BluOx/AirForce)