1991 Johnson/Evinrude EI 60 thru 70 outboards Service Manual, Page 326Get this manual
Troubleshooting Trim Gauge
!N='J To avoid immediate meter damage, never apply an ohmmeter to an electrical circuit where voltage is presentr:;l, 1Turn key switch ON and use voltmeter to check for voltage
between trim gauge terminals "I" and "G If voltage, go to Step If no voltage, go to Step 2r:;l, 2With key switch ON, check for voltage between trim gauge