1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 178Get this manual
DAC6152
Ohmmeter TestDiode and Connectors
All ohmmeter tests must be performed with the engine NOT running
1Calibrate ohmmeter on appropriate scale
2Disconnect engine wiring harness connector and 2-pin Amphenol connector between power pack and key switch, and 1-pin Amphenol connector between engine harness and shift switch3Connect ohmmeter red lead to blackyellow terminal in engine harness connector Connect black meter lead to blackorange terminal "A" in 2-pin Amphenol connectorNote reading
4Reverse meter connections or press "polarity" buttonNote reading: high reading in one direction and low reading in the other direction indicates diode is good If your test results are different, replace diode or repairreplace engine wiring harness