1998 Johnson Evinrude "EC" 125C, 130, 200, 225, 250 90 deg LV Service Manual, P/N 520212, Page 147Get this manual
22 in(56 em)
DRC6251
Blocking Diode Test
rn Theis located in the engine harness tan wire circuit at diode position
1Disconnect engine harness 6-pin Deutsch connector that contains the tan wire2Disconnect temperature switch tan lead
rn 3connect meter betweenappropriate scaletan lead and Calibrate ohmmeter on Using jumper wires, engine harness
engine harness 6-pin connector terminal "6"Note reading4Reverse meter connections or press "polarity" buttonNote reading very high reading (00) in one direction and low reading in the other direction indicates diode is good5Replace engine harness blocking diode if your test results vary6Complete all circuits disconnected during this test