955 - no power/no lights

   / 955 - no power/no lights #11  
Test continuity between terminals. You'll need the TM1360 JD Service Manual to follow the procedure.

TM1360, Section 240, Group 10 covers all the needed info you will need. :)

In Group 15, there is a cheesy hand drawn Charging Circuit. The entire SM is really detail until getting to this page, like it was an afterthought. LOL

1636780543871.png
 
   / 955 - no power/no lights #12  
Everything you have said screams that a battery cable or connection is bad. A perfectly good looking cable can be bad. You mentioned bypassing the negative cable with a jumper cable. Try doing the same thing with at the positive cable . Connect one end to the positive battery terminal and the other end to the starter post that the battery cable connects to. Another note, a bad voltage regulator will not keep tractor from starting if you have a known good battery in it. It can cause the battery to go dead, but not keep it from starting with a good fully charged battery.
 
   / 955 - no power/no lights
  • Thread Starter
#13  
We’ll, I was able to figure it out. After spending an hour or two cleaning/testing the ignition switch, it turns out the problem was a actual the cable coming from the battery to the starter. I was reading 12.8v at the ignition switch but under any load (even the lights), it dropped to almost 0. Replaced the cable and all seems to be good. @jd110, you were dead on!

Thanks for all the help everyone. All of your testing ideas really helped me narrow this down.
 
   / 955 - no power/no lights #14  
Had we not been stuttering and spoke with more clarity in post 5 & 6 it could have been fixed a week ago. :cautious:
 

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