2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 406Get this manual
ELECTRIC SHIFT PROGRAM (ESPFE model)
BEFORE TROUBLESHOOTING
SELF DIAGNOSIS FUNCTION
When the engine control module (ECM) detects system abnormality, it has built-in self-diagnostic function that stops the Electric Shift (ES) system or resets the system entirely (just as when the ignition switch is turned from OFF to ON)If the ECM detects an ES system failure, it stops the ES system function and records problem codeThe ES system will not operate, even after the ignition switch is turned to OFFTo reset the ES system, turn the ignition switch from ON to OFF and back to ON againHowever, if the ECM still detects problem, it will continue to deactivate the ES system functionWhen this occurs, the gear position indicator will blink certain number of times to indicate the appropriate problem codeThe ECM is able to record the system failures and outputs these as problem codes that are shown on the indicator (ie the" blinks designated number of times)
RETRIEVALERASURE OF PROBLEM CODES