2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 370Get this manual
17-44 ELECTRICAL SYSTEM Switches
Brake Light Switch Adjustment
Refer to Brake Light Switch Adjustment in the Periodic Maintenance chapterSwitch Inspection
a hand see Usingshown intester, check toWiringthat only the connections the table (see Diagram) have continuity (about zero ohms)If the switch has an open or short, repair it or replace it with new one
Radiator Fan Switch Inspection