2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 407Get this manual
ELECTRIC SHIFT PROGRAM (ESPFE model) 4After performing the above troubleshooting steps and repairing the problem, erase the problem codes from the ECM as follows:Turn the ignition switch to OFF- Place the transmission in neutral- Apply the parking brake so the vehicle does not move- Push both the Upshift and Downshift switches- While pushing both switches, turn the ignition switch to ONBefore letter" appears on the gear position indicator (within about seconds), release both the shift switches, then push them again more than secondsIf the switches are not released and pushed within seconds, the code number will not appear- While the indicator is showing the problem code (ie the "N" is blinking with the transmission in neutral), push both the Upshift and Downshift switches to erase the problem codes from the ECM- Turn the ignition switch to OFF