[guidoshbruce]

I'm thinking of buying a 4320, but the owner has no Idea what the hours are and has had it for 2 years (selling to get bigger tractor) He says where the hours should register only shows "conFIG" Anyone have Ideas what could be the problem/solution?! $20,000 is not bad, but not knowing the hours on a 15 year old tractor doesn't thrill me!

 

[Kennyd]

Welcome to GTT.
The 4x20 fault codes can be found here:

John Deere 4x20 Fault Codes

Complete list of fault codes for the 4x20 series tractors.

www.greentractortalk.com

Member @arlen is pretty familiar with getting into the diagnostic menu, he may be able to offer some assistance too.