Blower Speed Control

The blower switch provides a choice of various blower speeds. A fuse in the fuse block provides power to the blower switch when the ignition is turned to the ON position. In the low speed position, the circuit continues through the heater wiring harness to three resistors in the resistor assembly, near the blower motor.

When the blower switch is placed in the medium speed position, the circuit continues through the heater wiring harness to the resistor assembly. This circuit then bypasses one or two of the resistors.

When the blower switch is in the HI position, the circuit continues through the heater wiring harness to the resistor assembly. The circuit then bypasses all three resistors in order to provide full power to the blower motor.

From the resistor assembly, the circuit goes to the blower motor terminal in order to operate the blower motor.