1996 Johnson Evinrude "ED" 40 thru 55 2-Cylinder Service Manual, P/N 507124, Page 316Get this manual
3 ORC6247
Trim Sender Troubleshooting
To avoid immediate meter damage, never apply an ohm meter to an electrical circuit where voltage is present1Disconnect the 3-pin Deutsch connector between the instrument harness and engine trim harness
2Calibrate an ohmmeter on the appropriate scaleConnect the meter between the whitetan wire, terminal "C", ofthe engine harness and clean engine groundWith the engine fully DOWN, meter must show approximately 88 ohmsWith the engine fully UP, meter must show approximately ohm If your results agree, refer to Trim Gauge Troubleshooting If your results are different, replace trim sender