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cold and windy 2 days ago sitting Idle and that comes on my Dash with 175 Miles before 65 MPH limit 6 miles later turn Truck off when I started it I got the check engine light no notice had it c90de checked when to the house then no check engine light any idea what is going on
 

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cold and windy 2 days ago sitting Idle and that comes on my Dash with 175 Miles before 65 MPH limit 6 miles later turn Truck off when I started it I got the check engine light no notice had it c90de checked when to the house then no check engine light any idea what is going on
Are you 100% sure on the code # ?
 

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it cleared up then returned on another cold day with a second code P2047 Reductant Injector Control Circuit
So it seems when a cold temp threshold is reached and the DEF heater/s are supposed to come into play that's when you get the error. It's has be the DEF controller or one of the two heater/s ,or, a poor connection to one of them.
 
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