2009-2011 Honda FourTrax Rancher AT TRX420FA/FPA Service Manual, Page 547Get this manual
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23LIGHTSMETERSSWITCHES
HANDLEBAR SWITCH 23-10 FRONT BRAKE LIGHT SWITCH! INHIBITOR SWITCH 23-11 REAR BRAKE LIGHT SWITCH 23-12
BRAKEITAILLIGHT 23-5 4WD SELECT SWITCH 23-13 COMBINATION