Hello,
The coolant fans may not operate if the relay or the temperature sensor or the fan motor is faulty.
The relay should be the first item to be checked and tested:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
Next item would be the coolant temperature sensor. If the sensor is not giving the correct signal the fan will not come on regardless of the actual temperature.
Also you could just have a faulty motor. You need to check to see if there is power to the fan.
https://www.2carpros.com/articles/how-to-check-wiring
I have attached the diagrams for the fan and the relay and temperature sensor. Also included the wiring schematic for the radiator fan.
Please let me know of any questions.
Thank you.
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Wednesday, August 4th, 2021 AT 10:39 PM