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dsalinas1939
Top Member

USA
1323 Posts
Posted - 05/17/2018 :  11:40:19 AM  Show Profile  Reply with Quote
i have this c2 last week the def quality light came on it was low on def so i drained and put new def in it cleared the codes lights went out fast forward today again the def quality light came on now no other bus is having a quility issue so am am thinkin its not the def any ideas?

tigger2
Advanced Member

USA
470 Posts
Posted - 05/17/2018 :  4:15:57 PM  Show Profile  Click to see tigger2's MSN Messenger address  Reply with Quote
Possibly the Def quality sensor it’s part of the tank header. If you have to change the header get the newest style, no float.
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aaronwilmoth80911
Top Member

538 Posts
Posted - 05/18/2018 :  04:15:54 AM  Show Profile  Visit aaronwilmoth80911's Homepage  Reply with Quote
Not sure about the C2's, but newer IC's have lots of problems with DEF quality sensor and they have gone to a different style.
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dsalinas1939
Top Member

USA
1323 Posts
Posted - 05/18/2018 :  05:16:39 AM  Show Profile  Reply with Quote
never had one out on c2 is that part of like the sending unit i would have to drop tank and pull that unit out?
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dsalinas1939
Top Member

USA
1323 Posts
Posted - 05/31/2018 :  06:25:45 AM  Show Profile  Reply with Quote
sry forgot to post the fix but i had our thomas rep come down and he checked for updates he told me he has seen that problem before and there was a computer update to fix it he came in it need three updated he did them bus has been running fine now with no issues
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