Radiator Fan Low Speed Not Working

1 is bad then the relay failing to energize cuts off power entirely so you have no fan speeds.

1057 the fan milwaukee app. Your nissan altimas radiator fan has one of the most important jobs on the vehicleit is the last line of defense between you and an overheating engine. Dan ferrell author on july 04 2019. 2 bad then i would imagine your low speed fan would be working just not your high speed.

Cooling fan speed issues. I have had a lot of people ask me about gm radiator cooling fan diagnosis in the past. Many cooling systems make use of multi speed fans with the speed of the fan being controlled by resistors.

If the radiator fan is not working its a serious problem. It is not good to run the high longer than you need to. Another symptom of a possible problem with the cooling fan resistor is issues with the cooling fan speed.

Put the ac on after fan is off off and the fan goes on high then i noticed when i shut ac down the fan is on a low speed for a little bit then goes off. The low speed may remain on while you drive above 30 mph but the high will not. For high speed the no2 relay is energized which bypasses the cooling fan resistor and goes to ground.

The low speed is intended to provide the cooling needed if it can with the high speed coming on only when needed. The cooling fan resistor is meant to send power to the fans in steps so that the fans may operate at. In these designs the fan switch is a little more complicated than on single speed fan systems but instead of supplying current to a relay the switch feeds power to resistors.

It basically runs two fans in series for low speed and then puts each. If your no1 was good and no.