2007-2010 Honda FourTrax Rancher 420 TRX420 TRX Service Manual, Page 157Get this manual
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FUEL SYSTEM (PGM-FI) DTC 9-2 (lAT SENSOR HIGH VOLTAGE) Before starting the troubleshooting, check the JAT sensor 2P connector for loose contacts or corroded terminals, and recheck the Ole1JAT Sensor S