2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 443Get this manual
LIGHTSMETERSSWITCHES
COMBINATION METER (Except ACM type TM model)
POWERGROUND LINE INSPECTION
Remove the front fender (page 3-9L Remove the combination meter 14P gray connector from the frame and disconnect it Check the following at the wire harness side con-
nectorPOWER INPUT LINE
'05'07 and except EPS model' After '07 and EPS model
Measure the voltage between the Blackbrown wire terminal (+) and ground HMeasure the voltage between the Redblue wire terminal (+) and ground HThere should be battery voltage with the ignition switch turned to ONIf there is no voltage, check for an open circuit in the wire harnessBACK-UP VOLTAGE LINE
Measure the voltage between the Redblack wire