2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 268Get this manual
FUEL SYSTEM (Programmed Fuel Injection) POWERGROUND LINE INSPECTION Disconnect the ECM 26P gray connectorGROUND LINE Check for continuity between the Green wire terminals and groundThere should be continuity at all timesIf there is no continuity, check for an open circuit in the Green wireGreen
ECM 26P GRAY CONNECTOR (viewed from the terminal side) Green
POWER INPUT LINE Fit the safety lanyard clip to the base of the engine stop switchMeasure the voltage between the Blackred wire terminal (+) and ground ()There should be battery voltageIf there is no voltage, check the following: open circuit in the Blackred wire between the ECM and fuse box sub-fuse (7.5 A) open circuit in the Redblack wire between the fuse box and relay box main relay and its circuits