Rear

The blower motor is a 12-volt, Direct Current (DC) motor with a squirrel cage-type blower wheel that is secured to the blower motor shaft. The blower motor and wheel are located near the top of the rear HVAC housing in the passenger compartment behind the right rear wheel house. The rear HVAC housing must be removed from the vehicle to access the blower motor for service. The blower motor and blower motor wheel are a factory balanced unit and cannot be adjusted or repaired. If faulty or damaged, the blower motor and blower wheel must be replaced as a unit.

On models equipped with the Manual Temperature Control (MTC) system, the rear blower motor will operate only whenever the ignition switch is in the On position, the front blower control switch is in any position except Off and the rear blower control switch on the front A/C-heater control is in any position except Off. On models equipped with the Automatic Temperature Control (ATC) system, the blower motor will operate whenever the ignition switch is in the On position, the A/C-heater control power is turned on and the rear blower control switch on the front A/C-heater control is in any position except Off. The rear blower motor can only be turned off by turning off the rear system at the front A/C-heater control.

The rear blower motor receives battery current whenever the rear blower motor relay is energized. The rear blower motor relay output circuit is protected by a fuse in the Integrated Power Module (IPM) located in the engine compartment near the battery. In the MTC system, the rear blower motor speed is controlled by regulating the path to ground through the blower control switch and the blower motor resistor. In the ATC system, the rear blower motor speed is controlled by an electronic blower motor power module, which uses a pulse width modulated input from the ATC control module and feedback from the rear blower motor to regulate the blower motor ground path it provides. The rear blower motor and wheel are used to control the velocity of air moving through the rear HVAC housing. The rear blower motor controls the velocity of the air flowing through
the rear HVAC housing by spinning the blower wheel within the housing at the selected speed or, in the ATC system, at the selected or programmed speed.