2006 Honda TRX680 Rincon Factory Service Manual, Page 134Get this manual
FUEL SYSTEM (PGM-FI)
DTC TROUBLESHOOTING
DTC 1-1 (MAP SENSOR LOW VOLTAGE)
1MAP Sensor System Inspection Turn the ignition switch ON and engine stop switch "O"Check the MAP sensor with the HDS pocket testerIs about indicated? YES NOGO TO STEP 2- Intermittent failure Loose or poor contact on the MAP sensor connector
2MAP Sensor Input Voltage Inspection Remove the fuel tank left side cover (page 3-6)Turn the ignition switch OFFDisconnect the MAPTP sensor 5P (Black) connectorTurn the ignition switch ON and engine stop switch "o"Measure the voltage at the wire harness sideConnection: Brown (+)Greenred (-) Is the voltage within 4.755.25V? MAPTP SENSOR 5P (BLACK) CONNECTOR (Wire side of female terminal)