2004 John Deer Buck Utility ATV 500, 500EX and 500EXT Service Manual, Page 163Get this manual
A quick test to validate it is workingIf the lights turn on in the cluster display just after turning on the key, the ignition switch is good
Disconnect ignition switchMeasure voltage between REDGREEN supply wire and the battery groundIf voltage is lower than battery voltage, test the wiringIf voltage is good, test switchFuse Condition Check ignition fuse (15 A) and MPEM fuse (20 A) conditionReplace burnt fuse as necessaryUse multimeter and measure the resistance between the following wiresPOSITION OFF WIRE RedGreen and RedYellow RedGreen and RedViolet RedGreen and RedViolet RedGreen and RedYellow RESISTANCE Infinite (0.L) Infinite (0.L) 0.1 max0.1 max
OFF ON (wlights) ON (wo lights)
V00G01C
V00g01C3.EPS