2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 144Get this manual
FUEL SYSTEM (PGM-FII 3Rear VS Sensor Output Line Inspection
Measure the voltage between the wire harness, REAR VSSENSOR 3P (YELLOWI CONNECTOR side rear VS sensor 3P (Yellow) connector termi(Wire side of male terminal) nals
Connection: Pinkgreen (+)Green I-I
Is the voltage about V7
NOOpen or short circuit in the Pinkgreen
wireYESGOTO STEP 4
4Rear VS Sensor Inspection
Turn the ignition switch OFFReplace the rear VS sensor with new one (page 23-9)Clear the the DTe
ore, test
ride the vehicle and recheck
Is the OTC 11-' indicated?
YESReplace the PCM with new one, and recheck
- Faulty original rear VS sensor
DTC 12-1 (INJECTOR)
Before starting the inspection, check for loose or poor contact on the injector 2P (Gray) connector and recheck the DTG
1Injector System Inspection