1996 Johnson/Evinrude Outboards 25, 35 3-Cylinder Service Manual, Page 261Get this manual
Circuit Verification, Instrument Harness To make sure the 0v1C System CheckTM 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 missed
The instrument harness must be connected to the engine before performing the following testsVerify the condition of all wiring and connectors before proceedingThe warning horn will not sound while in the diagnostic mode42811
NO ID!OIL WATER TEMP