The temperature sensor can be checked in the removed state with an ohmmeter. This is enough to determine the truth:
Remove the temperature sensor plug.
Connect the two measuring wires to the temperature sensor.
The first one goes to the contact to which the white-blue wire was connected.
The second one goes to the contact that the brown wire was connected to.
Connect the test leads to the ohmmeter and read the resistance value at two different temperatures.
At 20°C (ambient temperature) the ohmmeter should show 1000 ohms.
At a temperature of about 120°C the ohmmeter should show about 100 ohms.
If the sensor does not respond or shows completely different values, then the sensor must be replaced.
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Checking the pre-glow system temperature sensor (all engines) (VW Golf 3)
This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
The text has been checked: Medvedeva Elena
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