2005-2007 Polaris Ranger 500 service manual, Page 300Get this manual
ELECTRICAL Static Thermistor Test
Static Thermistor Test Test Procedure This test should be conducted with the engine near room temperatureMeasure the resistance between the two yellowblack wires on Pins and of SSCB #1 The thermistor resistance should be 2200-2700 ohms when the engine is at room temperature
What does passing resistance between 2200-2700 ohms indicates the thermistor is functioning normally and the connection this test indicate? with the thermistor is in good conditionIf an open or short circuit is found, this test should be repeated between the two yellowblack wires at the What does failing thermistor connector leading directly into the thermistorAn open or short here means there is problem this test indicate? inside the thermistor and it must be replacedIf no short or open is found here, the problem is in the yellow black wires between the PDM and thermistor
Dynamic Thermistor Test
Dynamic Thermistor Test To perform this test, the thermistor will need to be removed from the unitPlace an appropriate container on hot plate, add enough water to the container to submerge thermistor; begin to apply heatPlace the thermistor and thermometer in the waterAs the water heats, measure the thermistor resistanceTo pass this test, resistance should be 622760 at 131o (55o C), 339414 at 167o (75o C), and 196240 at 203o (95o C)