Radiator fan only works when A/C is turned on, the coolant sensor is not working?

2020 TOYOTA RAV4

64,000 MILES • 2.1L • 4 CYL • 4WD • AUTOMATIC

MARTINSRAV

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Replaced engine bypass coolant valve, bled the air out. No leaks in the system. I'm thinking the coolant sensor isn't working. Is it a separate part from the fan and where is it located? If that's the problem?

Aug 30, 2022 at 3:39 PM

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STRAILER

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This sounds like the coolant sensor has gone bad. Here is the location so you can change it out or have the work done. You can scan the car to see if the sensor is bad or if any codes come up. Also, I have included the cooling fan wiring diagrams so you can see how the system works. Check the images below.

Images (Click to enlarge)

Aug 31, 2022 at 7:16 AM