it is a 05 raymond
740-r45tt
740-05-fao2639
I have been from front to back in the manual running every test we can. The problem is that some of the test require the truck to run the drive motor and with the code 44 I cant run it. The contacters are fine. In start up it closes and then opens as it should except the brain never sees it open back up so it kicks out the code 44. It also gives a 2U code. With our volt meter we found the truck has 36 volts running throu it we we put the test lead in the neg batt cable and pos lead on the truck frame. When we unhook the drive motor we loose half those volts.