I am trying to diagnose my AC on my 2004 ford superduty 6. diesel. Trying to find the clutch relay in aux box # 5? i see a few relays in the engine compartment in front of the drivers side battery. Anyone have a pic, and which one is the relay for the AC?

 

This is a diagram from the service manual. The relay box is the larger one, the rearmost in the engine compartment, if I remember correctly.

The insides of the box on mine look a little different than this, I think there are three fuse spots but only one fuse. But this should give you the general ideal.

If this doesn't work, I can take a couple pictures of mine later today.

 

Man, thanks for the diagram. Helped big time.