90C farmall/ case code

   #1  

dj3010

New member
Joined
Apr 26, 2019
Messages
1
Tractor
Case 4230, JD 5400, JD 3010
Howdy all,
This has me baffled, Tractor 90C case/Farmall has the alert light on and the code 3999, I can't find what this code is anywhere. Yesterday I was loading hay and another code with symbol came on that put tractor into limp mode.
It was a code that said DEF was contaminated. This also made the original 3999 code go away. I drained a put in new DEF and it eventually cleared and the tractor would work again but the original !with 3999 came back.
This is a tractor I recently bought and I'm not that familiar with it yet.
Thanks for any help.
Bill, College Station Tx.
 

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   #2  

klancf51

Silver Member
Joined
Jan 16, 2013
Messages
138
Location
PA
Tractor
CASE IH
The CNH Tier 3 and Tier 4a Fault Code for DTC 3999 (and also 3000):
"Unknown ECM Error Code Received (Retrieve DTC via EASy tool)".
Not much help, but better than none ( I hope). Good luck.
 
 
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