Just did a motor swap on 02 gtp. The donor engine was a 98. My a/c and electric fans worked before the swap. They are a no go after start up with donor motor. a/c has power no cold though. I would like to think these two things are related but cant be sure. I think i have all my grounds right and plugs in. I have no warning lights or other problems. Maybe a faulty sensor? Temp. sensor or something?

To test the fans should i use a test light or multimeter? Where do i use the meter to see if it has power? Stick it in the open fan plug? If so which hole or wire color in the plug? Or do i test the relay slot? Will i get a reading with just the key turned forward?
In testing the a/c compressor pretty much the same questions as testing the fan.

When testing relays i just jump the relay with a paper clip? I think there was 3 fan relays. Which should i paper clip or should i try each one? When i jump the relay will the fan come on automatically when i turn the key forward?