2000-2003 Honda TRX350 Rancher factory service manual, Page 336Get this manual
ELECTRIC SHIFT PROGRAM (ESP)
TROUBLESHOOTING (After '02)
BEFORE TROUBLESHOOTING
When the Electric Control Unit (ECU) detects system abnormality, it has built-in self-diagnostic function that stops the Electric Shift (ES) system or resets the systems entirely (just as when the ignition switch is turned from OFF'' to ON'')If the ECU detects an ES system failure, the ECU stops the ES system function and records problem codeThe ES system will not operate, even after the ignition switch is turned to OFF''To reset the ES system, turn the ignition switch from ON'' to OFF'' and back to ON'' againHowever, if the ECU 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 ECU is able to record system failures and outputs these as problem codes that are shown on the indicator (ie the N'' blinks designated number of times)
TROUBLESHOOTING PROCEDURE