Hi Tana,
Just so I am understanding correctly, the blower only works on one speed. I just want to make sure you don't mean it only works on one vent setting (feet, head, defrost).
If I understand correctly, then most likely your issue is the blower motor resistor. I have included the testing and replacement of this component.
Please let me know if you need more info or if I misunderstood. Thanks
Images (Click to enlarge)
May 27, 2019 at 6:57 PM