Trying to check fan relay before buying new ac fan. Can't find any relays all fuses r good. The truck in question is a...

Thus fuse box us all I can find.

I'm having a simular problem I'm trying to check the a/c relay before I replace my condenser fan which is not spinning at all but I can't find even one relay under hood or in cab. System been vac out and recharged when sitting still hot air blows out vents but when u r driving over 20mph the ac is cold as ice. Also turned ac on and checked fan it not working and checked all fuses was about to buy new fan and my buddy told me check relays so here we r. And finally is the blower motor inside easy to change.