1990 Johnson Evinrude "ES" 40 thru 55, P/N 507872, Page 296Get this manual
Troubleshooting Trim Gauge This procedure is to be used with the fold-out wiring schematic located at the end of this sectionTo avoid immediate meter damage, never apply an ohmmeter to an electrical circuit where voltage is present
rv between trim gauge terminalsa"1" and "G check for voltage 1Turn key switch ON and use voltmeter to
If voltage, go to Step If no voltage, go to Step 2
rv "G" terminal and Point check for voltage between trim gauge 2With key switch ON, V1 If voltage, check condition of accessory harness purple 16 gauge lead If no voltage, go to Step 3f11 3W.ith key switch ON, check for voltage at key switch "A" If voltage, check condition of remote control purple 16 gauge leads If no voltage, check condition of key switch and engine harness 20 amp fuse PIN 510884