1998 Johnson Evinrude "EC" 90, 115 SPL Service Manual, P/N 520209, Page 256Get this manual
Circuit Verification, OMC Tester, PIN 437274 Verify the condition of the boat modular wiring system using OIVIC Tester, PI 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
circuitry in the tester is protected from an overload condition by circuit breakercondition of terminals in connectors of both the instrument harness and tester harnessThen, connect the tester harness to engine end of the instrument harness
W Verify
OJ Turn the tester ON for all testsThese tests must be performed in sequence and as complete procedure to ensure that the entire system is verifiedTrim Switch Function