Alexis Larriuz
Member
I’m having the same issue on a D6t as well
Your codes are: -
622.02 - transmission upshift switch
299.08 - transmission lever position sensor
673.02 - transmission speed sensor #2
585.02 - transmission speed sensor #1
689.05 - left brake solenoid
468.03 - brake pedal position sensor
588.09 - power train ECM not receiving data from Monitor system
Has the tractor been sitting for a while or did it just sit overnight and you came back the next day and it had the problem..?
Without a Serial Number it's difficult to pinpoint but my bet would be on an electrical connector somewhere that is either loose or has damp/corrosion inside it.