1993 Johnson Evinrude "ET" Electric Outboards Service Manual, P/N 508280, Page 55Get this manual
12Connect second meter lead to GREENWHITE 18-Gawire at speed control switch terminal "3"Move speed control switch to speed The meter must show continuity If meter shows no continuity, refer to Speed Control SwitchPage 2-12
Battery Cable TestHBF2
INote To avoid damaging components or troubleshooting equipment, disconnect the battery cables before proceeding1Use an ohmmeter calibrated on high ohms scale or continuity light to test continuity2Connect one meter lead terminalMeter must show continuity If meter shows no continuity, repair connection or replace battery cables
to battery RED cable
] 3Connect second meter lead to ONOFF switch center