Set Condition
WARNING: This page is about a different car, the 2013 RAM 3500 HD and 2013 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
The PCM detects that the NOx Absorber Catalyst (NAC) inlet or the Diesel Oxidation Catalyst (DOC) inlet temperature sensor reading is not increasing with engine operating temperature after engine startup.