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A good indication that you need a blower resistor is if your blower is only working on the highest speed setting. On most American and import cars and light trucks, the blower resistor is located near or on the blower motor. Nissan and Subaru as well as Chevy and Ford are examples. Many of the newest makes and models incorporate the fan speed as part of the HVAC control module, but if yours doesnt have this, you can change it rather quickly and get your blower working correctly in no time.
Step 1
Locate the blower resistor under the dash on the passenger side of the car. Often it will be attached to the blower motor housing itself, and in line with the blowers power wire.
Step 2
Disconnect the wire harness connector on the resistor using the small flat-head screwdriver. Use the Phillips screwdriver to remove the two screws holding the resistor to the bottom of the heater box.
Remove the resistor, and then install the new one. Tighten the screws and reconnect the harness connector until you hear it click.
Tips
- A short Phillips works best for this.
- A flashlight is a big help as its dark under the dash.
- Models with auto climate control do not use a blower resistor.
Items you will need
- Small flat-head screwdriver
- Phillips screwdriver
