Blower Motor Switch: Description and Operation

BLOWER MOTOR SWITCH REAR
The optional rear heater-A/C unit blower motor is controlled by a four position rotary-type blower motor switch, mounted in the accessory switch plate located to the right of the heater-A/C control on the instrument panel. The switch allows the selection of one of three blower motor speeds and an OFF position.

The rear blower motor switch directs the blower motor ground path to the blower motor resistor, or provides a ground directly to the high speed blower motor relay as required to achieve the selected blower motor speed.

The rear blower motor switch cannot be repaired and, if faulty or damaged, it must be replaced. The rear blower motor switch knob is serviced separately. The rear blower motor switch also has a replaceable incandescent-type illumination lamp bulb.