1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 142Get this manual

1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 142

Blocking Diode
If the S.L.OWwarning system is activated when warning horn receives no oil, low oil, or fuel vacuum signal, test engine harness blocking diode1Disconnect engine harness red connector2Disconnect both temperature switch tan leads
r:J 3Calibrate ohmmeter on Rx100 scale and connect between
either tan lead and engine harness tan pin

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