One station not working

.I have had my Rachio 3 for about a month now. One of my stations is not working. I have checked the wiring and even changed wires. I have replaced the solenoid and diaphragm in the valve. I plan on taking a volt meter and checking voltage tomorrow as well as solenoid. Any other thoughts on what needs to be done? Thanks.

@tbaxter612 - check the resistivity down the C(ommon) wire and that zone wire - with the wires removed from the Rachio. Does the valve work when manually activated?