Pre catalyst and Mid catalyst sensors
WARNING: This page is about a different car, the 2020 Jaguar XF and 2019 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.
Drive the vehicle until the engine is fully warm (greater than +80 °C). The drive cycle should include driving the vehicle in a steady throttle condition at a road speed of 30 mph or above for a duration of at least 2 minutes. (When functional the oxygen sensor output signal can be seen reacting to changes in engine speed/load or if the sensor is faulty a DTC(s) will be raised).