When Monitored

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

This diagnostic runs continuously when the following conditions are met:

With the ECT Sensor above 60°C (140°F)
Minimum engine run time of 20 seconds
engine speed between 1000 and 2750 RPM
MAP reading is between 21 - 96 kPa (6.2 - 28.3 in Hg)