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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Manual >> Description & Operation >> HVAC Control Module >> OFF Mode

OFF Mode

When OFF is selected, the Heater Ventilation Air Conditioning (HVAC) control module applies voltage to blower switch off input (within HVAC control module) through the off blower motor control circuit. When HVAC control module receives this input, any A/C request will be cancelled and the A/C request LED will turn off. Fresh air will be brought in from the outside, the LED indicator will not illuminate.