temperature conditions. Compare the measured value with the standard value. If
the standard value is not met, the coolant temperature sensor should be
replaced.
(2)
Detect coolant temperature sensor output signal voltage
Install the coolant temperature sensor, insert the sensor wire connector, turn on
the ignition switch, and test the sensor output voltage signal between the two
terminals of the coolant temperature sensor wire connector. The measured
voltage value should vary inversely with the coolant temperature. When the
coolant temperature sensor harness is disconnected and the ignition switch is
on, the voltage should be about 5V.
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