Page 692 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ELECTRICAL

COOLANT TEMPERATURE SENSOR
The coolant temperature sensor can be tested using an
ohmmeter.
If the ECT circuit is open, the engine Hot light and fan will
both come on. With the engine at an ambient
temperature of 68° F (20° C), disconnect lead and
measure the resistance of sensor between the two ECT
terminals and compare to the specification listed.
1. With the engine and temperature sensor at room
temperature (68°F = 20°C), disconnect the harness
connector.
2. With the meter in the ohms mode, place the meter
leads onto the sensor contacts.
3. Use the Temperature / Resistance table to determine
if the sensor needs to be replaced.
TEMPERATURE °F (°C) RESISTANCE
68 °F (20 °C) 2.5 kΩ ± 5%
212 °F (100 °C) 186 Ω ± 5%

NOTE
If the coolant temperature sensor or circuit malfunctions
the radiator fan will default to 'ON'.
The fan may not function or operation may be delayed if
coolant level is low or if air is trapped in the cooling
system. Verify the cooling system is full and purged of
air. Refer to Maintenance Chapter 2 for cooling system
information.

11.30 9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual
© Copyright Polaris Industries Inc.