1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, Page 264Get this manual
Circuit Verification, Instrument Harness To make sure the CWIC System Check engine monitor can alert the operator during LOW OIL, NO OIL, FUEL RESTRICTION, or engine OVERHEAT condition, it is very important to verify the condition of the sensors and associated wiringTest the engine monitor regularly and anytime you suspect an alert situation has been missedINotel The instrument harness must be connected to the engine before performing the following testsVerify the condition of all wiring and connectors before proceedingI Note The warning horn will not sound while in the diagnostic mode
IT] Note I
Use jumper wires made with the appropriate terminals to test the warning circuits
NoID'OIL WATER TEMP