1996 Johnson Evinrude "ED" 90 CV 88 thru 115 Service Manual, P/N 507126, Page 116Get this manual
Ohmmeter TestStop Button All runnmgtests must be performed with the engine not
1sl 1Separate the 1-pin connector between the stop button and the power pack2Calibrate ohmmeter on appropriate scaleConnect the meter red lead to the terminal in stop button end of the connector and the meter black lead to clean engine ground Button depressed, meter must show low reading Button not depressed, meter must show high reading3If engine fails to shut off, test for open blackyellow lead from power pack or open black lead from stop button4Complete all circuits disconnected during this test