Pollution Sensor

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Fig 1: Pollution Sensor

Courtesy of JAGUAR CARS, INC.

Up to 2009 MY, a pollution sensor was installed only on Japanese specification vehicles. From 2009 MY, the pollution sensor is a standard fit in all markets.

The pollution sensor allows the automatic temperature control (ATC) module to monitor the ambient air for the level of hydrocarbons and oxidized gases such as nitrous oxides, sulphur oxides and carbon monoxide. The sensor is mounted in the right-hand (RH) front corner of the engine compartment.

The pollution sensor is powered by an ignition controlled voltage feed from the central junction box (CJB) and provides the automatic temperature control (ATC) module with separate signals of hydrocarbon and oxidized gases. With a pollution sensor fitted, the automatic temperature control (ATC) module can control the air intake source to reduce the amount of contaminants entering the cabin. This function is fully automatic, but can be overridden by manual selection of the air source using the recirculation control switch below the TSD.

If there is a fault with the sensor, the automatic temperature control (ATC) module disables automatic operation of the recirculation door.