1997 Yamaha YFM600FWAK ATV Service Manual, Page 303Get this manual
SIGNAL SYSTEM
5.Start switch Refer to "SWITCH INSPECTION"CORRECT
INCORRECT
Replace handlebar switch (left)
IReplace the fan motor control unitEB806024
1.lfthe 4WD indicator light fails to come on: 1.Bulb and bulb socket Check the bulb and bulb socket for continuityCONTINUITY 2.4WD switch Refer to "SWITCH INSPECTION"CONTINUITY 3.Voltage Connect the pocket tester (DC 20 V) to the bulb socket leadTester (+) lead Tester (-) lead Brown terminal CD Sky blue terminal NO CONTINUITY