2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 399Get this manual
ELECTRICAL Brake Light Replacement
The brake light (A) is located in the rear tail lamp housingA
Brake Light Switch
1234Disconnect batteryRemove the front rackRemove the front coverLocate and remove both relays from the relay blockRemove single Torx screw holding relay block to the vehicle frameMove relay block towards the front if the vehicleThe brake light switch is directly below the relay blockECU Remove