MOTOR-BLOWER
DESCRIPTION
The blower motor (1) is a 12-volt, direct current (DC) motor mounted within a plastic housing with an integral retaining tab (2), an integral wire harness connector (3) and a squirrel cage-type blower wheel (4) that is secured to the blower motor shaft. The blower motor wheel is positioned within the HVAC air inlet housing, which is mounted to the passenger side end of the HVAC housing.
The blower motor can be accessed for service from underneath the instrument panel.
OPERATION
The blower motor is used to control the velocity of air moving through the HVAC housing by spinning the blower wheel within the HVAC air inlet housing at the selected speed.
The blower motor will operate whenever the ignition switch is in the On position and the A/C-heater controls in any position except Off. The blower motor receives fused battery circuit through a fuse and a relay located in the power distribution center (PDC) whenever the ignition switch is in the On position.
Blower motor speed is controlled by regulating the ground path through or around the blower motor resistor and through the blower motor control located within the A/C-heater control.
The blower motor and blower motor wheel are factory balanced as an assembly and cannot be adjusted or repaired and must be replaced if found inoperative or damaged.
REMOVAL
WARNING: On vehicles equipped with airbags, disable the airbag system before attempting any steering wheel, steering column, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the airbag system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the airbag system. Failure to take the proper precautions could result in an accidental airbag deployment and possible personal injury or death.
NOTE: Make sure that no foreign material or debris is present on the top of the dash panel in the engine compartment which could possibly block or restrict air flow through the fresh air inlet screen or cause rustling type noises when the blower motor is operated. Use a vacuum to remove any foreign material or debris as necessary.
NOTE: The blower motor is located on the passenger side of the vehicle under the instrument panel. The blower motor can be removed without having to remove the instrument panel or the HVAC housing.
NOTE: LHD model shown. RHD model similar.
1. Disconnect and isolate the negative battery cable.
2. Disconnect the wire harness lead from the blower motor connector (4).
3. Release the locking tab (3) that secures the blower motor (2) to the HVAC housing (1) and rotate blower motor counterclockwise.
4. Rotate and tilt the blower motor as needed for clearance to remove the blower motor and wheel from the HVAC housing.
INSTALLATION
NOTE: Make sure that no foreign material or debris is present on the top of the dash panel in the engine compartment which could possibly block or restrict air flow through the fresh air inlet screen or cause rustling type noises when the blower motor is operated. Use a vacuum to remove any foreign material or debris as necessary.
NOTE: Failure to install the blower motor correctly could result in an air leak or the blower motor becoming completely disengaged from the HVAC housing.
NOTE: LHD model shown. RHD model similar.
1. Align and install the blower motor (2) into the HVAC housing (1).
2. Rotate the blower motor until the locking tab (3) secures the blower motor to the HVAC housing.
3. Connect the wire harness lead to the blower motor connector (4).
4. Reconnect the negative battery cable.
5. Test the blower motor for proper installation by operating the blower motor at its fastest speed while checking around the outer edges of the blower motor and HVAC housing for air leaks. If any are found, remove and reinstall the blower motor.