1997 Johnsoon Evinrude "EU" 50 thru 70 3-Cylinder Service Manual, P/N 507266, Page 121Get this manual
I 5 (12,7inem)
DRC625 1
Blocking Diode Test
rn Theis located in the engine harness tan wire circuit at diode position
1Disconnect engine harness 6-pin Deutsch connector that con tains 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 (00in one direction and low reading in the other direction indicates diode is good 5Replace engine harness blocking diode if your test results vary6Complete all circuits disconnected during this test