I have a 1994 Rodeo. The electric cooling fan has stopped working.
I tested the fan manually and it works fine. The Hayes book mentions
to check the condenser fan relay or the A/C pressure switch and
control head. I would appreciate some help locating these components.

Lefteye

I don't know the answers to your questions, but if you are overheating due to the bad fan, you could temporarily put a switch inside the vehicle for the fan, running right from the battery (with a fuse of course), and use it manually.