Blower Motor Switch: Operation
WARNING: This page is about a different car, the 2004 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition is turned to On, the integral blower motor resistor within the ATC A/C-heater control supplies power to the blower motor switch. The switch directs power to the individual blower driver circuits through the blower motor resistor block to the blower motor and then to ground.
The blower motor switch cannot be adjusted or repaired, and if faulty or damaged, the A/C-heater control must be replaced (Refer to REMOVAL ).