Welcome to the forum.Hi everyone just hoping someone could shed some light on my situation
I have an 09 d40 that has no drive turns on fine does have an abs light but that has been on before this issue, I can hear the 4wd switch change from 4 high to 4 low but not when I change it to 2wd clutch feels normal gears feel normal just won't drive anywhere I suspect the transfer case is stuck in neutral is there any way I can test the 4wd switch before splurging on a new one for $160
I also have continuity on all the switches on the tranny
Your diagnosis sounds spot on.
A couple of things to try:
Disconnect a battery terminal and turn the key. Effectively rebooting all the computers. It might work.
Put the main gearbox in neutral, with the engine running switch the tbox to each setting several times. Often the mechanism gets sticky and needs freeing up.
If no joy, then I would remove the actuator mechanism from the side of the transfer box.
You can then check the actuator is doing the right thing, also accessing the spindle that operates the tbox which can be turned to manually change gears.