2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 202Get this manual
FUEL SYSTEM (Programmed Fuel Injection) Fit the safety lanyard clip to the base of the engine stop switchMeasure the voltage between the wire harness side connector terminalsConnection: Pink (+) Ground () Is the voltage within 4.75 5.25 V? YES NO GO TO STEP GO TO STEP 3ARX1200T3T3D: MAP SENSOR 3P BLACK CONNECTOR (viewed from the terminal side) Pink
ARX1200N3:
3MAP Sensor Input Line Inspection Pull the safety lanyard clip off of the engine stop switchDisconnect the ECM 26P gray connectorCheck the pink wire for continuity between the MAP sensor 3P connector terminal and ECM connector terminalIs there continuity? YES NO Replace the ECM with known good one, and recheck Open circuit in the Pink wire