Auxiliary Blower Switches
WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
Auxiliary blower switches (A/C and heater) are located to right of radio. Switches control auxiliary A/C-heater system. In OFF position, blower motor is inoperative, even though refrigerant is circulating through evaporator core when main system is operating. To operate rear system, simply select desired blower speed (LOW, MED or HIGH position). Auxiliary A/C blower motor may be used for air circulation when main system is not in A/C mode.