Hello,
This could be due to a bad blower motor relay or a bad blower motor.
First check the relay.
It is located under the dash on the driver side, left corner (see diagram below).
Inspect the relay for any corrosion or burnt pin(s).
You can also test the relay:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
If the relay is bad replace it. If the relay is good check to see if you are getting power to the blower motor harness. The blower motor is located under the glove box on the passenger side (see diagram below).
If there is power to the motor then it is a faulty blower motor.
https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only
I attached diagrams for your reference.
Please let me know of any questions.
Thank you.
Images (Click to enlarge)
Sep 25, 2021 at 7:03 PM
