Honda TRX500FM Service Manual page 512

ELECTRIC SHIFT PROGRAM (ESP: FE/FPE models)
23-26
4. Recheck OTe
Connect the handlebar switch 14P (Green) and
PCM 33P (Black) connectors.
Erase the OlC (page 23-12).
Tum the ignition switch OFF.
Tum the ignition switch ON and engine stop switch
Check the shift operation and the
Ole.
Is the
ore
42-1 Indicated?
YES - Replace the PCM with a known good one
(page 4-34). and recheck.
NO - Intermittent failure.