1990 Johnson Evinrude "ES" Cross V 88 thru 115, 150 thru 175, P/N 507874, Page 282Get this manual
Key Switch Check
1121 1131
Ohmmeter [ID 1Disconnect battery leads and leads at the key switch
2With key switch in "OFF" pOSition, connect continuity light or meter leads between key switch "BATT" and "A" terminalsLight or meter should not show continuity
1101 3Turn
key switch to "ON" position Light or meter should show continuity
4Turn key switch to "START" position Light or meter should still show continuity