Takeuchi tb175 wiring problems

[Drsmall]

I just acquired a tb175, the thumb doesn’t work and the two speed tracks don’t work. The second aux hydraulics also don’t seem to work(I don’t hear a hydraulic restriction when I move the thumb screw and those lines are capped on the stick) a quick search showed me these are known for electrical problems. The diagram I found shows the two aux hydraulics getting power from two different parts of the controller? I’m not great at electrical so I’m just looking for a jumping off point to get started tracking this down
Thanks in advance

 

[DuncanR]

I have exactly the same issue. Did you find a solution?

 

[heymccall]

For the 2speed, does the "rabbit" light illuminate when the 2speed button is depressed and released?

 

[DuncanR]

No, it doesn't

I've measured the voltage at the fuses and there is a group on the left-hand row that are around 4.9 v vs the rest that are 25v. This includes the proportional control, lights, AC.

 

[Nard586]

hey duncan. im having the exact same problem right now exept all of my fuses are at 28.6 volts. did you ever find out what was causing your problem

No, it doesn't

I've measured the voltage at the fuses and there is a group on the left-hand row that are around 4.9 v vs the rest that are 25v. This includes the proportional control, lights, AC