2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 169Get this manual
500 EFI FUEL SYSTEM ENGINE TEMPERATURE SENSOR
General Information
Mounted on the cylinder, the engine temperature sensor measures coolant temperatureThe engine temperature sensor is Negative Temperature Coefficient (NTC) type sensor, as the temperature increases the resistance decreases
Engine Temperature Sensor Test
Polaris dealers can test the sensor by using the Polaris Digital Wrench Software (dealer only)Refer to the Digital Wrench Software Manual for more informationTo measure the sensor using an ohmmeter, place the tester leads on each terminal an read the resistance with the sensor at an ambient temperature of 68F (20C)
Table 4-2: Resistance Readings TEMPERATUREC) 68 (20 C)
RESISTANCE
37.339.2 k