When Monitored
WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. 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:
- Battery voltage between 10.5 and 15.75 volts.
- The O2 Sensor Heater is commanded on.
- The O2 Sensor Heater circuit high fault is not active.