How is the radiator fan connected to the coolant temperature sensor?

1997 NISSAN PULSAR
297,657 MILES
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LIBERSTY
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  • 2 POSTS
Coolant temperature sensor is not working.
Jul 21, 2025 at 10:40 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,542 POSTS
So the temperature sensor feeds information to the PCM which turns the fans on, so are the fans not working? What makes you say the sensor is not working, did you get a trouble code?
Jul 23, 2025 at 2:57 AM
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LIBERSTY
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  • 2 POSTS
No I test sensor with multimeter, and it gives 2.63 cold water and 0.31 hot.
Jul 23, 2025 at 6:17 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,542 POSTS
The sensor is working properly based on resistance readings.
Jul 23, 2025 at 9:40 AM
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