Front

HIGH SPEED BLOWER MOTOR RELAY

The front blower motor electrical circuit uses a high speed blower motor relay. The high speed blower motor relay is a International Standards Organization (ISO)-type relay. The relay is a electromechanical device that switches the blower motor to ground, bypassing the remainder of the blower motor feed circuit.

The high speed blower motor relay is energized when the relay coil is provided a ground signal by the blower motor switch, and a battery feed from the ignition switch. When the relay is de-energized, the front blower motor ground feed is routed through the front blower motor switch and the blower motor resistor.

The front high speed blower motor relay is located in the engine compartment, on a bracket that is secured under one of the screws for the top cover on the inboard side of the heater-A/C housing. The high speed blower motor relay cannot be repaired and, if faulty or damaged, it must be replaced.