Re: ’93 70hp wiring harness diode?

[Don]

Well, maybe someone replaced the diode and put it in backwards!
Again, just use a jumper lead to "bypass" the diode, then try the horn again to see if the diode is the issue. Like Tom says, the ohm meter won’t show continuity if oriented in the wrong direction. Don’t cut it out of there yet until we confirmed it is the issue.