1999 "EE" Evinrude 70HP 4-Stroke Service Manual, P/N 787023, Page 188Get this manual
Trim Switch and Relay Test Trim Switch Voltage Test
Disconnect pink wire bullet connectorContact black meter lead to ground and red lead to switch side of pink wire Push trim -down buttonmeter should show battery voltageConnect bullet connectorRepeat test for blue wirePush trim-up button meter should show battery voltage No voltagereplace switch
Trim Relay Voltage Test
Contact black meter lead to ground and red lead to green (down) wire relay studPush trim-down buttonmeter should show battery voltageRepeat test on blue (up) wire studPush trim-up buttonmeter should show battery voltage No voltagereplace relay