Quote:
Originally Posted by KermitCar
U1900 - CAN Communication Bus Fault - Receive Error
U2023 - External Node Fault DTC
U1900, U2023 are communication codes. they appear when there is module to module communication error, in this case the ABS system. there is no reason to be concerned with these codes. they happended becasue of the other codes.
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Thanks Bethany! Either you are super smart or you have a S.O. who works for Ford perhaps? ( or both!) I figured it was very minor. All codes have been cleared and the car runs great. I was just curious about the last two. From the category, I figured they were in the communications, rather than mechanical error category. Thanks for the details! -John