2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 521Get this manual
IGNITION SYSTEM Remo ve the right side cover (pil ge 3-5)Disconnect th alt ern ato 5P (Natu ral) connector and co nnect the peak volt age tester adap tor probes to the Blu ey ell ow and Greenwhite ir termina ls of th alternator side co nnector
In the same man ner as at the peM co nnec tor, measure the peak voltage and com pare it to the vo ll age easured at th peM con nector II the peak vo ltag measured at the PCM co nnecto is abno rm al and the on easur ed at the ltern at or connector is normal, th Blue ello or Green whi te wire has an PAO or sho rt ci rcuit, lo ose co nnect io It both peak volt ages are ab no rma lfo llow th checks described in the tro ubles hoo ti ng chart (page 21-4)If the CKP sensor is fau lty, replace th stato rCKP senso assembly (pag 11-11l