Burgman 650, 2006, 7400 miles. On attempted start, instrument displays come up but "CHEC" appears in the odometer field. Side stand up, squeeze brake, push start button .... complete silence! Hook up charger, full charge indicates. Jumper to known good battery, just in case, same deal, complete silence. Can find no reference to the CHEC display in either the operators manual or the shop manual. What am I missing here?