2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 149Get this manual
500 EFI FUEL SYSTEM EFI SYSTEM
Component LocationsIdentification
1Electronic Control Unit (ECU)Located under the front access cover4Intake Air Temperature Sensor (IAT)Located under the seat, in the rear of the airbox
2Fuse PanelLocated under the front access cover
5Throttle BodyLocated in between the engine and the airbox6Idle Air Control (IAC)Located on the throttle body 7Throttle Position Sensor (TPS)Located on the throttle body10 11