m9960 problem

ditchdigger2

New member

Equipment
m9960
Oct 2, 2018
2
0
0
Center, TX
Hello folks , new here but I hope with all the knowledge available here y’all can help. I have an m9960 low profile tractor that I’m having a problem with, I washed the tractor a week or so ago and now it won’t start, it will turn over but the fuel pump doesn’t run, all other electronics seem to work like they are supposed too. There is a code on display it is eng ng. The book says that is engine communication problem, I’ve checked most connections in wiring harness and haven’t found anything, has anyone else ever had this happen? Thanks in advance.
 

ditchdigger2

New member

Equipment
m9960
Oct 2, 2018
2
0
0
Center, TX
Thank you for that link, yes all the fuses are good only thing I haven’t verified are two relays that are above radiator in front of engine, the prongs were pretty corroded when I pulled them but I cleaned that up and put them back but didn’t change anything.
 

Tx Jim

Well-known member
Lifetime Member

Equipment
M7040 HDC & JD 4255
Apr 30, 2013
1,269
174
63
Coyote Flats,Texas
I wish you luck on getting a reply from ditchdigger2 as that member hasn't been on this site for over 7 yrs. You might be better served to open your own thread.

Another good example IMHO why threads older than a yr or 2 should be open to being viewed but blocked to new replies
 

Attachments

docstoy

New member

Equipment
M9960D
Aug 19, 2025
18
4
3
Kentucky
If working on electrical , especially computer electrical, remove negative battery connector/clamp. Look at positive cables/fuses/relays between battery and junction located at the top of radiator fan shroud. There may be corrosion or loose.