1992 Johnson Evinrude "EN" 60 deg Loop V Service Manual, P/N 508146, Page 297Get this manual
Trim Gauge Troubleshooting 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 V1 If voltage, check condition of accessory harness's purple 16-gauge lead If no voltage, go to Step 33With key switch ON, check for voltage at key switch "A" terminal If voltage, check condition of remote control's purple 16-gauge leads If no voltage, check condition of key switch and motor harness 20-amp fuse4Turn key switch OFFTo avoid immediate meter damage, never apply an ohm meter to an electrical circuit where voltage is presentRemove trim harness leads from gauge terminals "S" and "G"Calibrate an ohmmeter on appropriate scale and connect between the leadsWith the engine fully DOWN, meter must show approximately 88 ohmsWith the engine fully UP, meter must show approximately ohm If you results agree, replace the trim gauge If your results vary, go to Step 55Repeat test in Step at connector C3 If your results agree, check condition of trim harness and connector C1 If your results vary, replace trim sending unit