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Home >> Chevrolet >> 1973 >> Vega Panel, 2.3L Eng VIN A >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Components & Functions >> Programmer >> Resistor Assembly

Resistor Assembly

The printed circuit board switch in the programmer determines which of the resistors will be connected in series with the blower motor, and at in manual A/C systems, the resistors control the blower speed.