2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 382Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 382

ELECTRICAL Fan Motor Current Draw Test A current draw test will provide good indication of fan motor conditionA worn or damaged
sensor needs to be replaced 1Disconnect the harness from the coolant sensor (EFI)2Connect DC ammeter in-line on the fan switch
harness wiresSee illustration(H.OModelsAn inductive ammeter is required) 3Be sure fan blade is free to rotate4Turn ignition
key and engine stop switch to "ON" positionRead the current draw on ammeter with fan running(H.OModelsDirect 12 Vdc to fan
required) 5If the fan motor draws more than 10 Amps, replace the motor Fan Motor Current Draw: Should Be Less Than 10 Amps
NOTE: Fan motor current draw specification may vary on Sportsman H.Oand EFI models Table 10-1: EFI Sensor TEMPERATUREC) 68
(20 C) 212 (100 C) RESISTANCE 37.3 2.1 k NOTE: If the coolant temperature sensor or circuit malfunctions the radiator fan
will default to 'ON'NOTE: The fan may not function or operation may be delayed if coolant level is low or if air is trapped