1994 Johnson/Evinrude Outboards 40 thru 55 Service Manual, Page 139Get this manual
STEPSENSOR COIL TEST Ground Test
[!!] 1Disconnect Amphenol connector:
Rope or Amp, the 5-pin connector 12 Amp, the 3-pin connector
2Set peak-reading voltmeter to:
Rope or Amp, "pas" AND "5", or "SEN" and "5" on Stevens CD-77 meter 12 Amp, "pas" and "5", or "SEN" and "5" on Stevens CD-77 Meter
f'11l3Alternately, connect voltmeter between sensor coil terminals and clean engine groundRefer to following chart for terminal locationCrank engine and observe meter reading at each connection: Any reading indicates sensor coil or leads are grounded Locate and repair ground, or replace sensor coilRope or Amp