Sensor Inputs

WARNING: This page is about a different car, the 2015 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.

The Ambient Air Temperature (AAT) sensor and the evaporator temperature sensor are inputs to the IPC and the information is relayed to the PCM over the HS-CAN. If the temperature is below a predetermined value, the PCM does not allow the A/C clutch to engage.

The sunload sensor is an input to the HVAC control module indicating the intensity of the sun on the vehicle and the HVAC control module compensates high sun load with higher blower and reduced discharge temperatures.

The in-vehicle temperature sensor is an input to the HVAC control module. The HVAC control module adjusts the system based on the temperature of the passenger compartment air.

The center register air discharge temperature sensor and the footwell air discharge temperature sensor are inputs to the HVAC control module and the HVAC control module adjusts the system based on the outlet air temperature.