Ford 555C backhoe shift control wiring

[JustRathel]

In the process of cleaning up the wiring from many previous hacks in the wiring. Having an issue getting power to the shift control module. Does anyone have a wiring diagram to help me sort through this?

 

[Stash8744]

Hey did you have any luck with your issue? I just ran into an issue with my 89 555C not getting enough power to the shifter control lever.

 

[used red MN]

Hey did you have any luck with your issue? I just ran into an issue with my 89 555C not getting enough power to the shifter control lever.

Let met say up front I have no direct repair knowledge of the system on that tractor. By general repair knowledge if the system has a “shift control module” as the OP indicates the amount of power/voltage at your shift control lever is a relative term. Is it not enough in the terms that a service manual is saying is the spec? Or is it not 12 volts? Depending on the design, the shift control may not actually work on a full 12 volt signals. My point is that it very likely has to be diagnosed per the parameters given in a repair manual. If JustRathel answers you I’ll be surprised, your only chance is if he has a email notification set for this thread. He came and went the same day he posted the thread.