2006 Honda TRX680 Rincon Factory Service Manual, Page 315Get this manual
DRIVETRAIN SYSTEM 3Shift Solenoid "A" Line Short Circuit Inspection Turn the ignition switch OFFDisconnect the shift solenoid "A" 2P (Black) connectorCheck for continuity between the shift solenoid "A" 2P (Black) connector terminals of the wire harness side and groundConnection: GreenwhiteGround Yellowblack- Ground Is there continuity? YES NOShort circuit in the Yellowblack wire Short circuit in the Greenwhite wire- TO STEP 4SHIFT SOLENOID "A" 2P (BLACK) CONNECTOR (Wire side of male terminal)
4Failure Reproduction Connect the shift solenoid "A" 2P (Black) connectorTurn the ignition switch ONTest-ride the vehicle for several minutes under the same conditions as those indicated by the freeze dataIs DTC 15-1 indicatedNO YESIntermittent failureReplace the PCM with new one and recheck