1990 Johnson Evinrude "ES" Electric Trollers Service Manual, P/N 507869, Page 46Get this manual
Power Supply Continuity TestHand Control Models To avoid damaging components or troubleshooting equipment, disconnect the battery cables before proceeding 1Use continuity light or ohmmeter calibrated on high ohms scale to test continuity2Connect one meter lead to electric outboard RED battery cableLeave this meter lead connected for all the following tests3If equippedmove 12 24 switch to 24 V 65
4 12 modelsconnect second meter lead to RED ga lead at circuit breaker The meter must show continuity If meter shows no continuity, repair or replace battery cables
661 524 modelsconnect second meter lead to RED ga o
lead at 12 24 switch The meter must show continuity If meter shows no continuity, repair or replace battery cables