Set Condition
WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
The PCM detects that the SCR Module Heater Supply circuit is below a calibrated threshold for a calibrated amount of time. Or, the VGT 12-Volt Supply Circuit is below a calibrated threshold for a calibrated amount of time.