Blower Speed Control-Auxiliary

The 3-speed blower switch provides the following settings:
^ LO
^ MED
^ HIGH

The blower switch is located in the instrument panel, above the radio. The blower switch also triggers an electro-mechanical valve to control coolant flow to the auxiliary heater core.

In the LO speed position, the circuit continues through the heater wiring harness to 2 resistors in the blower motor resistor relay.

In the MED speed position, the circuit continues through the heater wiring harness to 1 resistor in the blower motor resistor relay.

In the HIGH speed position, the circuit continues through the heater wiring harness to the blower motor resistor relay, and closes the relay's normally open contact. This provides full power to the blower motor from the HVAC MaxiFuse(R).