1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175 Service Repair Manual, P/N 507874, Page 340Get this manual
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Troubleshooting Trim Gauge
present
an ohmmeter
1 Turn key switch ON and use voltmeter to check for voltage between trim gauge terminals "I" and "G If voltage, go to Step If no