2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 415Get this manual
IGNITION SYSTEM Disconnect the alternator 5P connector and connect the peak voltage tester or adapter probes to the BlueJyeliow and White wire terminals of the alternator side connectorIn the same manner as at the ECM connector, measure the peak voltage and compare it to the voltage measu red at the ECM connector If the peak voltage measured at the ECM connector is abnormal and the one measured at the alternator connect or is normal, the Blueyellow or White wire has an open or short circuit, or loose connections If both peak voltages are abnormal, follow the checks described in the troubleshooting chart (page 19-4)Refer to procedure fo the alternator statorCKP sensor assembly replacement (page 11 -7)