1998-2004 Honda Foreman 450 factory service manual, Page 421Get this manual
ELECTRIC SHIFT PROGRAM (ESP) ELECTRIC SHIFT MALFUNCTION DURING VEHICLE OPERATION Inspect the following before diagnosing the system- The engine run normallySpeedometer operates normally
Refer to Electric Shift Does Not Operate troubleshooting section (page 21 -3)Normal Inspectthe clutch operation Normal Inspectthe angle sensor (page 21-25)Normal Disconnect the control unit 16P and Ignition control module 4P connectorCheck for contin uity between the control unit 16P connector and Ignition control module 4P connector terminal of the wire harness sideCONNECTION: BlueYellowBlueYellow STANDARD: Continuity Normal Disconnect the control unit (ECU) 16P and speed sensor 3P (natu ral) con nectarCheck for continuity between the control unit 16P connector and speed sensor 3P connector terminal of the wire harness sideCONNECTION: PinkGreenPinkGreen STANDARD: Continuity Abnormal Abnormal Abnormal Slipped