2003 Yamaha YFM400FAR Kodiak Factory Service Manual, Page 341Get this manual
SIGNAL SYSTEM EB806010
TROUBLESHOOTING IF THE BRAKE LIGHT ANDOR AN INDICATOR LIGHT FAILS TO COME ON: Procedure Check: 1.Fuses (main, four-wheel drive, ignition, signaling system) 2.Battery 3.Main switch 4.Wiring connections (the entire signal system)
NOTE: Remove the following part(s) before troubleshooting: 1)Seat 2)Fuel tank 3)Air filter case 4)Front carrier 5)Front fender panel Use the following special tool(s) for troubleshooting