1998-2004 Honda Foreman 450 factory service manual, Page 461Get this manual
TECHNICAL FEATURES Angle Sensor The angle sensor that is located on the control motor, converts the direction of rotation, rotating angle and rotating speed of the sub-gearsh ift spi ndle into voltage and speed signals, and outputs them to the ECU Gear Position Switch The gear position switch that is located inside the rear crankcase, controls the starter relay switch and also sends gear signals (For '98'01: reverse, neutral 1st, and 5thAfter '01: all gears) to the ECU Speed Sensor The speed sensor that is located on the rear crankcase, sends vehicle speed signal to both the comb ination meter and the ECU
DESCRIPTION OF MAJOR COMPONENTS
Angle Sensor
SUB-GEARSHIFT SPINDLE The angle sensor shaft is connected to the end of the sub-gearshift spindleIt converts the direction of rotation, rotating angle and rotating speed of the sub-gearshift spindle, into voltage and speed signals and then outputs these signals to the ECUThe rotation of the angle sensor shaft changes variable resistance value, thereby changing the out-put voltage to the Electron ic Control Unit from the angle sensorThe Electronic Control Unit detects to see whether the gear is shifted down or up from the voltage change Electronic Control Unit