2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 499Get this manual
ElECTRIC POWER STEERING (EPS) RESTRICTION ON POWER ASSIST OPERATION Repealed extreme steeri ng force, such as turning th handlebar continuously back-and -forth with the vehicle sloppedcauses an increase of power consumption in the EPS motorThe increase of electric current causes the motor to heat upBecause this heat adversely affects the system, the control unit monitors the electric current of the motorWhen the control unit detects heat build-up in the motor, it reduces the electric current to the motor gradually to protect the system !motor and EPS ECU), this restricts the power assist operationThe EPS indicator does nol come on during this function When steering torque is not applied to the handlebar, or when the ignition is turned off, and the system cools, the control unit will restore the power assist gradually until it's fully restored
TORQUE SENSOR NEUTRAL POSITION (INITIALIZE THE TORQUE SENSOR)
The EPS ECU stores the torque sensor neutral position in the EEPROM The torque sensor must be initialized whenever the EPS unit, the motor, the EPS ECU, etc is serviced (page 24-13)Perform the Torque Sensor Initialization when you service the following contents (page 24-13)MAINTENANCE LOCATION Cables and harness around Handlebar Steering shaft and steering shaft bushing Steering shaft arm and end nut EPS EPS ECU