Hey man I had the same problem last year when I noticed that the A/C was not cooling when I stop in traffic at night in the summer.
By that time the truck was new to me about 2 months only so I checked for the fan and found out that it don't move when I turn the A/C on.
So I took it to a used spare parts shop to ask for a solution the guy immediatly smiled at me and gave me a motor that has a DENSO tag on it and told me to replace the old 1, So I paid him and replaced the motor and it works great.
the total cost is :
Used motor: 4BD=around 13$
+
replacing it: 3BD= 7$

lets say around the 25$ at most if you count the exact currency rate.

hope that you fix yours soon