Air Speed
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control module applies ground to the blower motor control circuit that corresponds to the selected blower speed. The resistors and the blower motor are in a series circuit. The following list represents the number of resistors in series with the blower motor per particular speed request:
- Low speed-3 resistors
- Medium 1 speed-2 resistors
- Medium 2 speed-1 resistors
When the operator requests High speed, the HVAC control module applies ground directly to the blower motor through the high blower motor control circuit. The resistor card has a fusible link which if blown, will require that the card be replaced.