2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 165Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 165

500 EFI FUEL SYSTEM INTAKE AIR TEMPERATURE SENSOR (IAT) Operation Overview The intake air temperature sensor (IAT) is used
Temperature Sensor Test The IAT sensor is non-serviceable itemIf it is faulty, it must be replacedIt can be tested using
the following method: With the test leads connected and the meter set to the ohms scale, observe the reading at room temperature
(20C, 68F) The reading should be: Idle Air Control Test The IAC is non-serviceable itemIf it is faulty, it must be replacedIt
can be bench tested' using the following method: 1With the test leads connected and the meter set to the ohms scale, observe
the reading at the following pin locations of the IAC: IAT Resistance: 2.450.24 (New) 2.450.36 (Used) If the sensor does
not read correctly, replace it Intake Air Temperature Sensor Replacement 1Disconnect engine harness from sensor2Using suitable
tool, remove the sensor from the grommet3Lightly coat the grommet with soapy water and install new sensor, using twisting
motion to properly seat the sensor in the grommet4Re-connect the harness 1If any of the readings are out of specification,