2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 306Get this manual

2009 Polaris Sportsman 850 XP EFI EPS Service Manual, Page 306

ELECTRICAL BRAKE SWITCH Function Test Applying the brakes closes switch to activate the brake lampsUse multimeter to test
the brake switch if function does not pass testPin 2 Diagnosing System Failures Verify the ADCAWD switch is functional and
that minimum of 11 volts is present at the hub coil connection Verify the ADCAWD hub coil is functionalTest the AWD hub coil
using multimeter Verify the wiring harness, wiring, connectors, connector pins and grounds are undamaged, clean and connected
properly Verify continuity of wire connections with known good voltohm meter Verify the coil wires are not connected or shorted