1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 86Get this manual
Results:No voltageFaulty instrument harness or emergency stop switch in boat, repair or replace as necessary[]]Voltage presentCheck voltage at Position fuseaVoltage presentgo to Step FbNo voltagecheck voltage at whitered wire, terminal "A", of Power Distribution Panel 4-pin connector About volt less than battery voltage replace Power Distribution Panel No voltagetest 26-volt charging systemSee Section 7DCheck for battery voltage at purpleyellow wire, terminal "N", of Power Distribution Panel 14-pin connector OKgo to Step No voltagetest voltage suppressor (see Suppressor Diode TestSection 7)If OK, test main power relay circuitSee Step 9 rn
ERemove relay in Position and check voltage at terminal 30 of relay socketI
DRC6753
No voltageverify condition of 14-pin connectorIf OK, replace Power Distribution Panel Battery voltagereplace relay
INote Verify operation of replaced part[] FRemove relay in Position and check voltage at terminal