Takeuchi TB135 won’t start. Need help.

[Chasegj]

I have a Takeuchi TB135. It ran fine one day then wouldn’t Start the next. Long story a little bit shorter. With the help of this forum I have read posts and had a lot of help from 007 and narrowed it down to not having power at the Fuel stop solenoid. I just can’t figure out why? When the problem started I also lost power to all the warning lights on the dash. All my fuses are good and have power. As for the Fuel stop Solenoid I get the one second of power on the white pull wire. I do not get power to the red hold wire. I will break this up with a couple posts with pictures to hopefully better explain what I have done and found so far.

 

[Chasegj]

First picture: I don’t have power going out of this large relay to my fuel stop solenoid. The large red wire coming out the bottom goes all the way back to the fuel stop solenoid. I swapped it with the relay next to it with no change.
Picture two and Three: when I probe the temp sensor with a grounded light probe. I get a click at the large relay in picture one, the decel motor activates. And the fuel stop solenoid gets power to the red hold wire. I can even get the machine to start and run when a probe the temp sensor at the same time as turning the key.

 

[Chasegj]

It should be mentioned that I am new to working on excavators and electrical is not my strong suit by any means. So sorry if I ask basic questions in that regard. Such as. How do I test the oil pressure sensor picture 1. air filter sensor picture 2. And does anyone no where an emergency shut off switch might be located? These have been recommended to me to check by member 007.

 

[James alex zheltonoga]

Do you have a logic circuit board under your gauge cluster ?