When Monitored
WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
With the engine running for less than 30 seconds, the Oxygen Sensor 1/2 heater temperature less than 251° C (484° F) and the battery voltage greater than 10.4 volts.