Automatic Temperature Control Module (ATCM)
The ATCM is mounted on the outboard end of the air inlet duct, behind the front passenger side of the instrument panel. The ATCM processes inputs from the system sensors, the TS, the ICP and, on four zone systems, the rear climate control panel. In response to these inputs, the ATCM outputs control signals to the A/C system and the heating and ventilation system.
Two electrical connectors provide the interface between the ATCM and the vehicle wiring.