Blower motor fuse

Hello,

There is a relay for the blower motor. It is located under the hood in the fuse box.

You mentioned your truck does not have a fuse box under the hood?

Can you upload a picture of the under-hood?

Check for any corroded or bunt pin(s).
That relay can also be tested:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

See diagram below for the location.

Please let me know if you have any questions.
Thank you.

Good morning,

I attached a wiring diagram for you to view. The first thing I would do is check for power to the blower motor. Check both sides for power as the ground runs through the blower resistor.

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Roy