I tried it and the ac clutch/compressor unit, I cannot see any movement.
When we turned the car to acc and turned the a/c on, we did hear the blower motor and glow plug relay click, etc.
I did not see or hear any movment from the ac clutch. But when I start the car, I can see it spin.
Anything else I should be checking for or how should I narrow this down more?
I was looking at fault code testing equipment, it would cost me $400.00 to buy this thing and use it once on the a/c, any thoughts?