1993 Johnson Evinrude "ET" 40 thru 55 Service Manual, P/N 508283, Page 337Get this manual
TroubleshootingPow er Supply Before beginning this procedure: Charge battery and connect battery cables Turn key switch OFF, and remove key Remove clip from emergency stop switch All tests are made from the RELAY SIDE of the trimtilt relay bracket1Connect voltmeter black lead to clean engine ground2Check for voltage at battery side of starter solenoid If no voltage, check battery and wiring If voltage, go to Step (or Step 10, if problem is only with tilt downtrim in)UP CIRCUIT 3Remove relays from relay bracket
[!] 4Check for voltage at V1 (red)
If no voltage, check voltage at terminal stripIf voltage at terminal strip, check wire If voltage at V1go to Step 5Check for voltage at V2 (blue