1998-2001 Honda Fourtrax Foreman TRX450S, TRX450ES Factory Service Manual, Page 383Get this manual
21ELEC' RIC SHIFTROGRAM (ESP) P SYSTEM DIAGRAM
SERVICE INFORMATION TROUBLESHOOTING
GEAR POS.TION SWITCH INSPECTION
SHIFT SWITCH INSPECTI ON I
ANGLE SENSOR, CONTROL MOTOR
REVERSE SHIFT SWITCH INSPE,CTtON