2003 2005 YFM45FAR, YFM450FAR Kodiak OEM Service Manual, Page 377Get this manual
2WD4WD SELECTING SYSTEM
6.Four-wheel drive relay 3
C0NTINUITY
Remove the four-wheel drive relay from the wire harnessConnect the pocket tester1) and the battery (12 V) to the four-wheel drive relay terminalsTester (+) lead BrownRed terminal Tester () lead YellowBlack terminal Battery (+) terminal BrownRed terminal Battery () terminal YellowBlack terminal Tester (+) lead BlueRed terminal Tester () lead Gray terminal 4