1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 317Get 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[';11
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 22With key switch ON, check for voltage between trim gauge "G" terminal and Point V1 If voltage, check condition of accessory harness purple 16 gauge lead If no voltage, go to Step 33W!th 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