1996 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 264Get this manual
Circuit Verification, avIC Tester, PIN 437274 Verify the condition of the boat modular wiring system using CMC Tester, PIN 437274Power to the tester is supplied by:
110 VAC adapter supplied with the testerOR 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
[] Verify condition of terminals in connectors of both the instrument harness and tester harnessThen, connect the tester harness to engine end of the instrument harness