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Old 07-10-2015, 06:52 AM   #1
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2011 ISC Fail Codes
I am getting conflicting info from Freightliner and Cummins on engine codes. It is a 2011 Freightliner M2 chassis with the Cummins ISC engine. The codes I am getting are 279 1 then next screen Fail 7.
The 2nd code is the same but Fail 5.

I am trying to determine if I can drive it to the dealer or will it go into limp mode.

I suspect it is something to do with the worthless DEF system as it has sat for a while without running.

Thanx
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