Temperature Control

With the ignition switch in the RUN position, voltage is applied through the HVAC CTL fuse (CKT 41) and the DIC/HVAC fuse (CKT 541) to the Heater-A/C Control. The voltage from CKT 733 (LT BLU) is varied from the battery to approximately 1.5 V by the temperature control potentiometer. The control assembly provides a ground path through CKT 150 (BLK).