Blower motor resistor

check and test fuses -relays for a/c system

Can you measure and VOLTAGE across the resistor?

Here is a GREAT Link (in my estimation):
How To Test The Blower Motor Resistor 2001 2004 Dakota Durango
Yes it's for a DURANGO but the process may help you!

Joe, have you seen THIS link?
2003 dodge dakota heater schematic Google Search

And THIS YOUTUBE?
Dodge Dakota Durango Blower Motor Resistor Wiring Diagram

Also there is this possibility:


That link is here (yes ~ again it's for a DURANGO, but the help may be here)!

Connector to blower resistor DodgeForum com

Anthony

Check the blower motor and blower resistor.

Sounds like the blower resistor. It can make contact and break contact as it heats up and cools down. This would cause sudden changes. If the airflow gradually changes speed, it could be the blower motor binding, such as if the motor lubrication has become very old or used up.

The blower motor is located under the passenger side of the dash. there should be power on the dark green wire at the blower motor. If there is no power check the 40 amp blower fuse and the blower relay. If there is power than ground the light green with white wire with the blower motor plugged in. If the blower does not come on than the blower is bad. If the blower comes on than you have a ground issue. The system is ground side controlled which means the switch provides ground. If the blower does not work on high I would suspect the ground wire is burnt on the backside of the switch since high speed bypasses the resistor.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

sounds like you have done all the hard stuff maby its the switch inside [on/off] on the dash that is not working properly.. i hope this helps its the first thing i thought of...

Solve i changed the resistor and then took out the blower because it was not working. i got the blower to... (More) i changed the resistor and then took out the blower because it was not working. i got the blower to work now it is not blowing cold air. i even added r-134a to the system and the compressor started to cycle on and off. does anyone know how to solve this problem

The blower motor resistors are known for going bad. Usually its because the blower starts drawing too much current. What I would recommend doing if you can and have the tools, is to check the blower motor connector to make sure 12 volts is present. If so than I would recommend replacing the blower motor resistor. Then if the same issue ever happens again and the blower motor resistor is bad again, you will need to replace the blower motor and the blower resistor as the final repair.
Here is some info about testing the resistor using a multimeter it you have one:

DIAGNOSIS AND TESTING- BLOWER MOTOR RESISTOR 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.
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. For circuit descriptions and diagrams, refer to Air Conditioning/Heater in Group 8W - Wiring Diagrams.

1. Disconnect and isolate the negative battery cable.
2. Disconnect the wire harness connector from the blower motor resistor block.
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 block or blower motor as required. If not OK, replace the faulty blower motor resistor block.

Here is the information on replacing the resistor:

REMOVAL

1. Disconnect and isolate the battery negative cable.
2. From the passenger foot well area, remove the two hex screws used to secure the blower motor resistor.
3. Unplug the front blower motor resistor from the wire harness connector.
4. Remove the front blower motor resistor from the HVAC unit.

Here is an exploded view of the HVAC box. The resistor is #63 in the picture and the actual part may appear slightly different:

View Full Image


If any issues such as no voltage at blower connector or damaged or melted connector at the resistor then let me know.

2003 Dodge durango, the blower motor stoppped came back on and stopped again and never came back on. I replaced the blower motor and still no air. Can anyone help?

blower motor resistor maybe why it only blows on high