Blower Motor Resistor: Service and Repair

Front

REMOVAL
1. Disconnect and isolate the battery negative cable.

Front Blower Motor Resistor Remove/Install:

2. Unplug the wire harness connector from the blower motor resistor, which is located on the inboard side of the heater-A/C housing.
3. Remove the two screws that secure the blower motor resistor to the heater-A/C housing.
4. Remove the front blower motor resistor from the heater-A/C housing.

INSTALLATION
1. Position the front blower motor resistor to the mounting hole on the inboard side of the heater-A/C housing.
2. Secure the front blower motor resistor to the heater-A/C housing with two screws. Tighten the mounting screws to 2.2 N.m (20 in. lbs.).
3. Plug the wire harness connector into the front blower motor resistor.
4. Connect the battery negative cable.

Rear

The rear blower motor resistor is used only on models with the optional rear heater-A/C unit.

REMOVAL
1. Before beginning this procedure, place the rear heater-A/C unit in the heat mode by turning the ignition switch to the On position and placing the temperature control knob on the heater-A/C control in the full hot position.
2. Turn the ignition switch to the Off position. Disconnect and isolate the battery negative cable.
3. Remove the cover from the rear heater-A/C unit.
4. Reach under the front of the rear heater-A/C unit to access and unplug the wire harness connector from the rear blower motor resistor.
5. Remove the horizontal duct from the rear heater-A/C unit.

Rear Blower Motor Resister Remove/Install:

6. Reach through the horizontal duct outlet in the rear heater-A/C unit upper housing with a small hand or use large pliers to access the blower motor resistor.
7. Push firmly against the inboard side of the blower motor resistor shield toward the outboard side of the vehicle until the resistor unsnaps from the retainer in the lower housing.
8. Pull the blower motor resistor out of the rear heater-A/C housing through the horizontal duct outlet.

INSTALLATION
1. Lower the blower motor resistor into the rear heater-A/C unit upper housing horizontal duct outlet.
2. Slide the outboard edge of the blower motor resistor mounting flange under the two tabs on the outboard edge of the resistor mounting hole in the lower housing.
3. Reach under the front of the rear heater-A/C unit to hold the blower motor resistor against the outboard side of the mounting hole with one hand. Then, use the other hand to reach through the horizontal duct outlet from above and press firmly downward on the inboard side of the resistor shield until the inboard side of the resistor mounting flange snaps under the retainer on the inboard side of the mounting hole in the lower housing.
4. Reach under the front of the rear heater-A/C unit to access and plug in the wire harness connector to the rear blower motor resistor.
5. Reinstall the horizontal duct to the rear heater- A/C unit.
6. Reinstall the cover over the rear heater-A/C unit.
7. Connect the battery negative cable.