2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 508Get this manual
HONDAMATIC PROBLEM CODE 9, 10, 12: ECM VOLTAGE CONVERTER CIRCUIT, ECM FAILSAFE RELAY CIRCUIT, ECM CPU 1System Failure Reproduction Turn the ignition switch OFF and ONCheck the gear position indicatorIs problem code indicated? NO No problem (Temporary failure) Erase the failure code (page 24-9) YES GO TO STEP 2GEAR POSITION INDICATOR
2Retrieval of Problem Code Retrieve the problem code again and check (page 24-9)Is problem code indicated? NO Perform the necessary diagnostic troubleshooting of the output problem code YES Faulty ECM After replacement, perform initial setting procedure (page 246)