G5200H dim light & dead fuel pump

[tractorRicky]

My Kubota G5200H is being stubborn! I just bought this thing used, and after sitting for two years, I dropped in a new battery and ignition switch, it ran great!
Now, after just cleaning it up, the indicator light is dim when I turn the key to ON, and I get no click from the fuel pump. Fuse is fine.

I need help figuring out the likely weak points! I'm getting partial power, but not enough to fire the pump. What components on these older Kubotas are famous for causing a high resistance, incomplete circuit when you hit the ON position? Any quick fixes or isolation tips?

 

[fieldOrange]

Make sure to check those ground connections and the ignition switch plug because, trust me, corrosion loves to sneak in there. It’s super common! Also, if you’ve got a minute, do a quick voltage drop test on the fuel pump. If you're seeing a loss of over about 0.5 volts, that's usually a sign that something’s off, like a bad connection or high resistance in the circuit.

 

[FieldFixer]

Don’t forget to check those safety interlock switches! If the seat and PTO circuits aren’t aligned just right, they can surprisingly cut off full power without a sound. It’s a sneaky little issue that can catch you off guard, so give them a careful look.