Another 06 Freightliner Eaton SS issue
 

Won’t go in any gear with truck running.
I can turn key off, put in any gear, turn key to “on” and it’s in gear. I can hear it shift.
(It obviously won’t start in gear)
But as soon as u go back to N, and start the truck, it won’t shift into any gear.
Error codes 37, 71, 75
Freightliner came out but they don’t have the “better” diagnostic tool on mobile truck.
I’ve seen the many other Eaton posts here and elsewhere but not this exact issue.
Eaton rep on phone says “could be XY shifter”. “Could be”? That’s $1k in parts alone and not even sure if that’s it.