Charge Air Temperature Sensor
WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The charge air temperature sensor is installed in the supercharger top cover. A two pin electrical connector provides the interface between the sensor and the engine harness. The sensor contains an NTC thermistor with supply and return connections to the Powertrain Control Module (PCM).
The PCM supplies the sensor with a 5V reference voltage and translates the return voltage into a temperature.
The PCM uses the input:
- To monitor operation of the charge air coolant pump.
- For air mass calculations used in control of the supercharger bypass valve, as part of the charge air strategy that co-ordinates operation of the electric throttle and the bypass valve, and predicts the air mass delivered to the cylinders.
If the charge air temperature sensor fails, the PCM substitutes the input with a modelled temperature. Failure of the sensor is unlikely to be noticeable to the driver.