No power to starter x485

   / No power to starter x485 #1  

Refdad

New member
Joined
Apr 12, 2025
Messages
6
Tractor
2004 JD X485
JD X485. Power to fuel pump and instrument cluster. No power to starter.
 
   / No power to starter x485 #2  
I don’t think the safety switches cut power to fuel pump or instrument cluster but they do affect the start circuit and ignition circuits. I would start by verifying operation of seat switch, neutral switch and PTO switch. I believe they all tie into the start and or ignition circuits.
If memory is correct Deere also had some circuit boards in the start circuit on that model.
 
   / No power to starter x485
  • Thread Starter
#3  
I’ve checked seat switch, but have only found 1 switch that controls rto. I replaced the pro switch. I checked and cleaned relays. I guess it’s in the circuit board. Looks difficult to test. Thanks for your help
 
   / No power to starter x485
  • Thread Starter
#4  
I’ve checked seat switch, but have only found 1 switch that controls rto. I replaced the pro switch. I checked and cleaned relays. I guess it’s in the circuit board. Looks difficult to test. Thanks for your help
Also, can’t find a switch for brake.
 
   / No power to starter x485 #5  
Welcome to TBN
What is rto? What is pro switch ? Maybe typo's, but maybe something else.
 
   / No power to starter x485 #6  
Post removed.
 
Last edited:
   / No power to starter x485
  • Thread Starter
#7  
Sorry, for typos, RTO switch is reverse pto, also , checked the neutral switch under pedals. I accustomed to seeing a brake switch, but can’t seem to find it.
 
   / No power to starter x485 #8  
I believe TM2023 is the Deere technical service manual for the X485. Deere typically have very detailed wiring diagram and diagnostic instructions. My suggestion is to invest in the manual.
 
   / No power to starter x485
  • Thread Starter
#9  
I believe TM2023 is the Deere technical service manual for the X485. Deere typically have very detailed wiring diagram and diagnostic instructions. My suggestion is to invest in the manual.
Thanks, I will
 

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