A/C wiring?

[Kap142]

I was at an A/C shop today and was told that a jumper wire had been used to leave a switch out of the A/C circuit.

I immediately went to my handy dandy wiring diagram only to find no wiring shown for a 72 w/ A/C.

The wire in question is a green wire coming from the A/C compressor. It travels back to a three plug in connector which has on it's bottom side 2 green wires and one black wire. Unknown persons had removed whatever was there and just put in a jumper wire doubling back into the green.

Any ideas of what and why?

Ken