2001-2003 Honda TRX500FA Factory Service Manual, Page 369Get this manual
HONDAMATIC DIAGNOSTIC TROUBLESHOOTING FLOW CHART NOTEThe co nnect or number (n um be in parentheses) indicates he connector locat ion as shown on page 23-2Perform nspect io ith the ig niti switch turned OFF unless otherwise specifiedCheck the fo llowing before starting troubleshooting using the flow mart- Batt ery voltage 112.3V more- FusesRelevant connector scomponents for water or loose contactAner troubleshooting, rase the problem code and test-drive the vehicle to be sure that the system is normal
problem Code 1: Ignition pulse generator system Check the ECM 34P con nector (1) and the alte rnato rig it io pulse ge nerator 5P connecto (3)
Co rrect he faul ty part
for loose contactCheck the gr und cable (6) between th eng ine and rame for loo se co nt act