Automatic Control Module
The Automatic Control Module (ACM) assembly is located on the steering column pod. The module consists of 5 switches which control the A/C-Heating system. The select switch controls the operation of various operating modes and the indicator light display which appears on the instrument panel. The blower motor speed switch controls the speed of the rotating blower motor and illuminates the present blower speed setting on the display panel. The temperature control switch is designed to allow the vehicle occupants to raise or lower the temperature setting in one degree increments. This is only possible when the system is operating between 65°-85°F (18°-29°C). There is also a portion of the switch which controls the setting for maximum and minimum heating and cooling temperatures of the interior compartment.