Durango 2WD V8-4.7L VIN N (2001)
Blower Motor Resistor: Testing and Inspection
Rear Blower Motor Resistor
Both the front blower motor resistor and the optional rear heater-A/C unit blower motor resistor can be diagnosed using the procedure that follows.
WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, 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. FAILURE TO TAKE THE PROPER PRECAUTIONS
COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY.
1. Disconnect and isolate the battery negative cable.
2. Unplug the wire harness connector from the blower motor resistor.
3. Check for continuity between each of the blower motor switch input terminals of the resistor and the resistor output terminal. In each case there
should be continuity. If OK, repair the wire harness circuits between the blower motor switch and the blower motor resistor or blower motor as
required. If not OK, replace the faulty blower motor resistor.
