2004-2005 660 Yamaha Rhino Factory Service Manual, Page 403Get this manual
2WD4WD SELECTING SYSTEM EB803020
TROUBLESHOOTING IF THE FOUR-WHEEL DRIVE INDICATOR FAILS TO COME ON: Procedure Check: 1Fuses (main, four-wheel drive) 2Battery 3Main switch 4Four-wheel drive relay 5Four-wheel drive relay 6Four-wheel drive relay NOTE: Remove the following part(s) before troubleshooting: 1) Console Use the following special tool(s) for troubleshootingEB802011
7On-Command four-wheel drive switch and differential gear lock switch 8Gear motor 9Wiring connections (the entire 2WD4WD selecting system)