I have 92 full size bronco Edie Bauer. Fan motor on heater does not worrk. Is there a fast and simple way to check and be sure it is not the motor that is out. can you jump the motor somewhere without going thru the complete electrical troubleshooting. Fuse is OK Thanks Guys

 

I have use jumper wires under the hood before and run a hot wire and ground where the motor plugs in (usually on the back of the motor) and tested them that way. You can also use a test light at the same connector and see if your getting power to the motor. Have you checked all of your fuses first?

 

I only tried the one on the driver side fuse box. Is there another fuse? lost

 

There may be a relay but I would try the test light at the blower motor connection. If you have juice it is probably the motor, if you don't it could be the switch or something else. I noticed that you said on the "heater", does it not work on the air/vent either? (I assumed it didn't)

 

If you have power at the fuse, a good fuse, and the motor is not running, you can jumper power directly to the motor via the ORG wire (pos.) and the BLK wire (neg) running to the motor. If the motor runs when power is supplied, the suspect component is the resistor assembly.

 

Grey...mine did the same thing...suspected and found it was the resistor assembly. Can you get that part from your local auto store and where is it located? Right now I just rigged it to my toggle switch...two speeds...off and on!