Ect Sensor Test - Polaris RANGER 1000 2020 Service Manual

ENGINE ELECTRICAL

ECT SENSOR TEST

To quickly rule out other components and wiring related
to the ECT, disconnect the harness from the ECT sensor
and start the engine. After a few seconds, the fan should
turn on and the "Check Engine" indicator should display
on the instrument cluster. This indicates all other
components are working properly.
NOTICE
If the coolant temperature sensor or circuit malfunctions
the radiator fan will default to 'ON' while the engine is
running.
Refer to COOLANT TEMPERATURE SENSOR for
additional ECT sensor information. Polaris dealers can
test the sensor by using Digital Wrench® Diagnostic
Software (dealer only).
ECT SENSOR RESISTANCE READINGS
TEMPERATURE °F (°C)
-40 °F (-40° C)
-22 °F (-30 °C)
-4 °F (-20 °C)
14 °F (-10 °C)
32 °F (0 °C)
50 °F (10 °C)
68 °F (20 °C)
86 °F (30 °C)
104 °F (40 °C)
122 °F (50 °C)
140 °F (60 °C)
158 °F (70 °C)
4.26
RESISTANCE
45.3k Ω ± 6%
26.1k Ω ± 6%
15.5k Ω ± 6%
9.4k Ω ± 6%
5.9k Ω ± 6%
3.8k Ω ± 6%
2.5k Ω ± 6%
1.7k Ω ± 6%
1.2k Ω ± 6%
834 Ω ± 6%
596 Ω ± 6%
435 Ω ± 6%
TEMPERATURE °F (°C)
176 °F (80 °C)
194 °F (90 °C)
212 °F (100 °C)
9850045 R01 - 2020-2021 RANGER 1000 Service Manual
RESISTANCE
323 Ω ± 6%
243 Ω ± 6%
186 Ω ± 6%
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