2006 Honda TRX680 Rincon Factory Service Manual, Page 143Get this manual
FUEL SYSTEM (PGM-FI) 3IAT Sensor Open Circuit Inspection Turn the ignition switch OFFDisconnect the PCM 33P (Gray) connectorCheck for continuity at the Grayblue and Green red wire between the IAT sensor 2P (Black) connector terminals and the PCM 33P (Gray) connector terminalsTOOL: Test probe 07ZAJ-RDJA110 Connection: B2Greenred B26- Grayblue te there continuity? YES NOReplace the PCM with known good one, and recheck- Open circuit in Grayblue wire Open circuit in Greenred wireIAT SENSOR 2P( BLACK) CONNECTOR (Wire side of fern ale terminal)B2 B26 GR Vi j