Heater-A/C Control

With the ignition switch on, voltage is supplied through the A/C Blower fuse and the ignition positive voltage circuit to the heater-A/C control. The voltage to the temperature signal circuit is varied from B+ to approximately 1.5 V by the temperature control potentiometer in the heater-A/C control module. The heater-A/C control receives ground through G201 and the temperature control actuator motor receives ground through G202.