2006 Honda TRX680 Rincon Factory Service Manual, Page 292Get this manual
DRIVETRAIN SYSTEM When Shifting in the AUTO (automatic) Mode, Excessive Shift Shock, Engine rpm (min') Rises or Driving Power Falls Off 1Vehicle Test-riding Test-ride the vehicle with the mode select switch at ESPCheck above symptoms when shifting with the ESP shift switchAre there repeated symptoms? YESFaulty throttle position sensor systemCheck the installation condition (page 6-43) Faulty VS sensor systemCheck the installation condition (page 18-30)- Hydraulic circuit malfunction is likely causeCheck the oil pressure (page 1412)
"-GEAR POSITION INDICATOR INDICATE BUT NO DTC SET