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Home >> Jaguar >> 2012 >> XKR 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Electronic Engine Controls - V8 N/A 5.0L Petrol -- XK/X150) >> Electronic Engine Controls - V8 N/A 5.0L Petrol >> Electronic Engine Controls DTC: Heated Oxygen Sensors (Ho2S) >> Diagnosis And Testing >> Inspection And Verification >> Heated Oxygen Sensor (Ho2S) Activation Requirements

Heated Oxygen Sensor (Ho2S) Activation Requirements

WARNING: This page is about a different car, the 2015 Jaguar XK, 2014 Jaguar XK, 2013 Jaguar XK, and 2012 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the sensor has not become active, then DTCs will not be logged.

The drive cycle required to activate all of the Heated Oxygen Sensor (HO2S) can vary greatly in time. This is dependent on all of the sensors reaching 'dew point' during previous drive cycles. 'Dew point' is where the moisture content in the exhaust has evaporated and can no longer damage the Heated Oxygen Sensor (HO2S). The closer a Heated Oxygen Sensor (HO2S) is to the engine, the faster it will achieve 'dew point'. Once a Heated Oxygen Sensor (HO2S) has reached 'dew point' the Heated Oxygen Sensor (HO2S) heating is activated and shortly afterwards the Heated Oxygen Sensor (HO2S) will be functional. Once functional the Heated Oxygen Sensor (HO2S) diagnostics become active and can report any error states with a DTC. 

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