I think you will find 2 & 3 are jumped together and 4 and 5 are tied together as well.
I think maybe your missing the other half of the plug that ran back to the soleniod. Is it heading that way?
Again, check voltage there while running.
Another thing, check for continuity between 4 and 5
exactly ! 2&3 are bridged if the 2nd yellow/gray is to reach the rectifier dual yellow inputs ! this is done internally by design of the terminal block or with clips
joining both screws.
has requested by Racerone.... PICS are needed here