Charge Air Temperature Sensor
WARNING: This page is about a different variant/trim than selected.
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 Negative Temperature Coefficient (NTC) thermistor with supply and return connections to the Powertrain Control Module (PCM).
The PCM supplies the charge air temperature sensor with a 5 Volt (V) 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.
NOTE:
The charge air temperature sensor is introduced together with the electric actuator for the supercharger bypass valve (in place of the vacuum actuator), which enables more accurate control of the bypass air flow.
If the charge air temperature sensor fails, the PCM substitutes the input with a modeled temperature. Failure of the sensor is unlikely to be noticeable to the driver.