2003 Honda ATV TRX650FA Rincon Factory Service Manual, Page 443Get this manual
LIGHTSMETERSSWITCHES
COMBINATION METERREAR VEHICLE SPEED SENSOR (VSSj
POWERGROUND LINE IN SPECTION
Rem ve th fu el an (p age 5-22 )Rem th co bina tion eter 14P co nec to from the ram and isco nn ect itCheck the following at he ire harn ess side co nectorPOWER INPUT LINE
M easu re th vo ltage between th Bl ackbrown wi re erminal (+an grou nd There shou ld be ba ttery lta ge it he ignit ion sw it ch turn ed to "ON "If th ere is no volta geche ck fo an open ci rc uit in he wi re harn ess
BACK-UP VOLTAGE LINE ea su re th vo lta ge etw een th Red ire erminal (+) and ro un t- )Th ere sho uld attery lta ge at all ti esIf the re is lta ge, chec for an open ci rc uit in th ire arn essGROUND LIN Ch eck or co ntinuity etw een th Green re erm inal and ground Th er sh ould be continuity at all ti esIf he re is voltage, che ck or an pe circ uit in th ire arness