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Are you checking switches with ohm meter for continuity , to see if switches are opening and closing? And have you check continuity between the switches?
You tested switches with ohm meter and they change from open to close or closed to open? To check between the switches, you test for continuity between the same wires on the switches, usually by wire color. You want continuity , to show the wire is not broken. parts manual shows three relays, locate them abd mark them , then swap the relays to see if it makes any difference.All three are same. It also has a Delay Module timer that can shut off the engine.
did you find problem?