Mazda 6 cooling fans remain on after engine shutdown, possible issue with fan relay 3 on Mazda 6

Some Mazda 6 owners report experiencing issues with the cooling fans remaining on after the engine is shut down, which may indicate a problem with the fan relay. Symptoms of a failing cooling fan relay can include the engine running hot or overheating. If the fans do not turn off after 4-6 minutes, this could suggest the need for a relay replacement or a fault in the temperature sensor. Additionally, first-generation Mazda 6 cars are known to have a high failure rate of the Fan Control Module (FCM), and replacing it may resolve fan control issues. Owners are advised to check the fan relay located in the engine bay fuse block to see if it is stuck in the on position. For accurate diagnosis, it is recommended to inspect the cooling fan motor, wiring, connectors, and test the cooling fan relay for proper functionality. Testing the voltage from the fan relay to the fan can also help determine if the fan is receiving power and functioning correctly.