General Information

The blower motor forces outside air into the vehicle's interior. The vehicle operator determines the blower motor's speed by placing the blower switch in one of the following positions: Low, Medium 1, Medium 2 or High. The blower motor will only operate if the blower switch is in any position other than OFF as long as the ignition switch is in the RUN position. The blower and mode switches are located within the HVAC control unit. The blower motor is housed in the blower case which is located behind the right side of the instrument panel.

The coil side of the blower motor relay receives ignition voltage through the DEF fuse when the ignition switch is in the ON position, and is permanently grounded at G201. The switch side of the blower motor relay receives battery voltage through the HTR and blower fuses at all times. When the ignition switch is in the ON position, the blower motor relay is energized and provides battery voltage to the blower motor. When the blower switch is in any position except OFF, a ground path is provided to the blower motor at G201 through the blower motor resistor (except in HIGH) and the closed contacts of the blower switch.

On vehicles equipped with A/C, when the blower switch is in any position except OFF, a signal is provided to the Powertrain Control Module (PCM) for idle control.