Control System Inputs - Electronic Automatic Temperature Control (EATC)

HVAC control module - Remote Mount 

Vehicles equipped with the non touch 4.2 inch display and vehicles equipped with the 8 inch touch screen use a remotely mounted HVAC control module that is separate from the control interface. The FCIM or the FDIM provide the interface for the vehicle occupants to control the climate control system. When selections are made, the FCIM communicates the selections to the HVAC control module through the MS-CAN. The remote HVAC control module controls the climate control system based on the FDIM selections, FCIM selections, or automatically controls the climate control system in the AUTO mode.

The remote mount HVAC control module is located at the top center of the instrument panel and is accessed through the upper instrument panel storage tray opening with the tray removed.

Ambient Air Temperature Sensor 

The AAT sensor signal is hard wired to the PCM and is sent over the vehicle communication network. The AAT sensor is located in front of the radiator.

In-Vehicle Temperature and Humidity Sensor 

The in-vehicle temperature and humidity sensor contains 2 thermistors, which separately measure the in-vehicle air temperature and humidity and send those readings to the HVAC control module.

Sunload Sensor 

The sunload sensor supplies information to the dual-zone HVAC control module indicating sunload. When sunload is detected, the information from the sensor is used to lower the A/C temperature output to compensate for radiant heat warming the vehicle interior and occupants.