When Monitored

WARNING: This page is about a different car, the 2024 Jeep Grand Wagoneer L and 2024 Jeep Grand Wagoneer. 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:

Engine RPM above 1408 RPM.
Vehicle speed above 80 km/h (50 mph).
Throttle open for a minimum of 120 seconds.
Engine Coolant Temperature (ECT) greater than 70°C (158°F).
Catalytic Converter temperature greater than 600°C (1112°F) and Downstream Oxygen Sensor in a rich state.