1998 Johnson Evinrude EC 50 thru 70 HP 3-Cylinder Service Manual, Page 270Get this manual
Circuit Verification, OMC Tester, PIN 437274 Verify the condition of the boat modular wiring system using CIVIC Tester, PIN 437274Power to the tester is supplied by: 110 VAC adapter supplied with the tester
Internal batteries (two rechargeable 6-volt batteries)To recharge batteries, move tester power switch to OFF position and plug in A.Cadapter
The circuitry in the tester is protected from an overload condition by circuit breaker
rn Verify harness andoftester harnessconnectors of the tester condition terminals in both the instrument Then, connect
harness to engine end of the instrument harness
Turn the tester ON for all tests