1998-2004 Honda Foreman 450 factory service manual, Page 437Get this manual
ELECTRIC SHIFT PROGRAM (ESP) Problem Code 11: Speed Sensor System (Vehicle Speed) Check he vehicle speed indicato during low speed drivingNormal Check the connection of he PinkGreen and BlackBlue wires Between the ECU and the meter speed sensorNormal Turn the ignition switch "OFF "Disconnect the ECU connector (22 PB lu e) and speed sensor connectorChdck for continuity in he Pi nkGreen wire between the ECU connector and meter speed sensor te rminalsAbnormal Loose or poor contact of related terminals Abnorma Check the combination meter (page 20-2)