I am at wits end trying to trouble shoot the solenoid on my Beneteau. This is an omnipotent solenoid, it controls permission relays for windlass and bow thruster, engine blower, starter, injector primer and probably other things I am missing. At some point I hired someone to troubleshoot the wiring and it worked for awhile but I noticed the RPM gauge acting funny and the lighting for the engine hours stopped working. I ignored this but recently the windlass and bow thruster stopped working. I looked at the wiring schematics I have and there is no detail or inset for this solenoid. There are 4 blades on the solenoid which means a possible 16 combinations of connections. I eliminated 8 as they would have grounded incorrectly and set out to try the remaining 8. On the 4th try, UREKA, it worked! Engine started, bow thruster and windlass worked. Only to return the next day and it was back to square one, starter would not work, blower stays on, I need some advice. Following are images that may help:
