Operation CHARM: Car repair manuals for everyone.
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Blower Motor: Testing and Inspection

The blower motor is located in the engine compartment, on the right side of the vehicle. It can be serviced without having to remove the heater housing.

Vibration and/or noise diagnosis
The blower speed switch, in conjunction with the resistor block supplies the blower motor with varied voltage.

CAUTION: Stay clear of the blower motor and resistor block (Hot). Do not operate the blower motor with the resistor block removed from the heater A/C housing.

Blower Motor Noise/Vibration Diagnosis Chart:




Refer to the Blower Motor Vibration/Noise Chart.

Electrical diagnosis

Blower Motor Electrical System Diagnosis Chart:




Refer to the Blower Motor Electrical System Diagnosis Chart.