2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 487Get this manual
HONDAMATIC RETRIEVALERASURE OF PROBLEM CODE The ECM stores up to two problem codes and displays the latest problem code first, and then the earlier code alternatelyWhen the two problem codes are displayed, perform troubleshooting starting with the latest code (i.e, the code indicated first)RETRIEVAL: 1Put the gearshift lever in the neutral position (be sure that the neutral indicator comes on) and turn the ignition switch OFF (vehicle at stop)2Turn the ignition switch ON while pushing the UP and DOWN shift switches (ESP shift switches) simultaneously3Release the UP and DOWN shift switches immediately, then push the UP and DOWN shift switches simultaneously again for seconds or more4The problem code is displayed by number of blinks "" on the gear position indicator (page 248)If "N" stays on the gear position indicator, the retrieval process was not correctly performedRepeat the procedures from step 15Note how many times indicator blinking, determine the detection item (page 24-11) and perform the troubleshooting (page 24-12)IGNITION SWITCH GEARSHIFT LEVER