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 during a decel fuel shutoff event, when the following conditions are met:

With the engine running
Vehicle speed above 96 km/h (60 mph)
Throttle open for a minimum of 120 seconds
ECT greater than 70°C (158°F)
Catalytic Converter temperature greater than 600°C (1112°F)
Downstream Oxygen Sensor in a rich state