Ok, same unit, same codes. About once a month I get a check engine light with these same codes. Truck runs fine. 2 months ago, I swapped out the trim valve with new. Still got the codes. Checked grounds and all good. Also noticed this time that message something about PIN 25 popped up on the display a split second before the CHECK ENGINE MESSAGE. Since my original post I have been able to clear the codes with the peddle but not this time. I'm going to have to call the same tech out (only one at the local dealership with laptop and program for this truck). Could this problem be caused by the SECM?
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