G207 should be near the airbag module, under the center of the dash on the transmission tunnel. It's in that harness, then it branches off.

 

If you are burning up resistors like that there must be a problem with the blower fan itself. It may be drawing too much current. If it pulls more than about 17 or 18 amps on high speed, you may have a bad fan motor. Put a clamp style ammeter on the green wire going to the fan motor and see what kind of current it is drawing. There is a fuse for the blower motor, it is a 40 amp maxi fuse and is located in the Power Distribution Center, under the hood next to the battery.

Cooking resistor packs and intermittent fan operation both can be big indicators that the fan motor is bad. You can get a replacement fan motor that includes a new squirrel cage at Advance. I replaced my own fan motor a couple years ago, I had a similar problem as yours. I still had all 4 fan speeds but the velocity of airflow was a lot lower than it shold have been. I put in a new resistor pack, the fan was better for a while but then the air flow slowed down again not long after that. I put in another new reisistor pack and checked the current draw on the fan motor. It was about 18 amps on high speed. I replaced the fan motor and it has been fine ever since. Dakotas are not known for moving great amounts of air thru the vents anyway but mine does very well, my AC air flow will move my hair around on the third and fourth speeds.

The fan motors sold at parts stores are pretty much all the same, from the same manufacturers. It is best to buy based on price. You may want to look at the Factory Air fan from Advance, Google search for "Advance Auto Discount Codes" buy online, pick it up in the store and you can probably save $40.00 on it. That is what I did. I have saved a lot of money with the Advance discounts but it depends on the part and manufacturer whether I buy at Advance or not. Rockauto.com has your fan for $59.99, they sell the Four Seasons brand, which is exactly the same fan sold at Napa. Rock has the resistor pack for $4.05.

The resistor pack changes the fan speed by varying the resistance of ground going to the fan motor relative to each fan speed. It is good to check and clean the ground but personally I would guess the ground is OK and the fan is bad, but you also need to check the voltage and current draw on the green fan power wire to be sure.

Jimmy

 

What does the connector to the resistor look like too? Burnt or melted?

 

Ok..mystery solved...finally. I took a closer look at the connections and found that the pigtail connector had a blckened pin. Not sure how it happened or why. So I got a new harness cut off the pigtail and connected to the harness. Been working fine for the last 3 weeks. Just in time too, temps dropped to below freezing here the next day.

I hope this is the last of this problem.

Thanks for all of your advice.

 

Usually when the connector is burned like that it's an indication the blower motor is drawing too much current. It may work for a while but you may end up with this same problem again later on, and it could be worse with the connector being melted. The best solution is a new resistor pack and new blower motor both installed at the same time.

JImmy

 

Will keep an eye on this. Thanks for the heads up.

 

Wish I had noticed this post sooner. The third pole in the connector had a small black mark around the pole. The resistor pack had black around the corresponding female end of the resistor pack.

But a continuity test of the pack showed that is was in good shape. In fact we reattached it and it has been working fine these past 2 weeks.

Thanks for everyone's help.