2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 190Get this manual
FUEL SYSTEM (Programmed Fuel Injection) 3TCP Sensor Input Voltage Inspection Pull the safety lanyard clip off of the engine stop switchDisconnect the TCP sensor 3P gray connector
TCP SENSOR 3P CONNECTOR 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 5Pink
TCP SENSOR 3P BLACK CONNECTOR (viewed from the terminal side)
4TCP Sensor Output Line Short Circuit Inspection Pull the safety lanyard clip off of the engine stop switchCheck for continuity between the wire harness side connector terminal and groundConnection: Light blue Ground Is there continuity? YES NO Short circuit in the Light blue wire Faulty TCP sensorLight blue TCP SENSOR 3P CONNECTOR (viewed from the terminal side)