Set Condition
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
The PCM compares the DEF Tank temperature on initial startup to a pre-determined DEF operating time. If the temperature comparisons are greater than or less than a calibrated threshold for a calibrated amount of time, this DTC will set. This is a two Trip Fault.