Hi,
In addition to checking the fuse, confirm it has power to and from it. Here is a link you may find helpful:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Next, I attached the wiring schematic below. If I am reading it correctly, power is constantly supplied via fuse 8 in the battery junction box. Is that the one you are referring to?
If so and the fuse is good and there is power flow, go to the blower motors. There should be two wires. Locate the light green wire with a violet tracer and confirm there is power to it (12v).
If there is, next, check the black wire (which is ground) for continuity to ground.
If that is good, then we need to check for a signal ground at the PCM. That is supplied via a light blue at the motors. However, there will be no ground until the system reaches a temperature it is needed, or the A/C is on.
Do this and let me know what you find.
Take care,
Joe
See pics below.
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Wednesday, February 23rd, 2022 AT 7:13 PM