Blower Motor: Testing and Inspection

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:

Refer to the Blower Motor Vibration/Noise chart for diagnosis.