Blower Motor: Testing and Inspection

BLOWER MOTOR INOPERATIVE

WARNING: ON VEHICLES EQUIPPED WITH AIR-BAGS, 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 ACCIDENTAL AIR-BAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.

For circuit descriptions and diagrams, refer to the appropriate wiring information. The wiring information includes wiring, diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.

BLOWER MOTOR ELECTRICAL DIAGNOSIS

Blower Motor Electrical Diagnosis:

Refer to the Blower Motor Electrical Diagnosis chart for basic checks of the blower motor circuit.

BLOWER MOTOR NOISE OR VIBRATION

Blower Motor Noise/Vibration Diagnosis:

Refer to the Blower Motor Noise/Vibration Diagnosis chart for basic checks of the blower motor when a vibration or noise is present.