Where is the cooling fan relay located?
The fan relay is usually located near the bottom of the engine compartment on a metal frame member. The metal acts as a heat sink to keep the fan relay cool.
Why does my radiator fan turn on and off?
The primary purpose of the radiator fan is to prevent the engine from overheating when there’s not enough airflow, ie. when the car is stopped or moving slowly. Under these conditions the fan will cycle on and off to maintain the coolant at the outlet of the radiator within a controlled temperature range.
How do you test a Volvo cooling fan relay?
How to test this … it’s simple. Allow a few minutes after you shut off the engine. While your volvo fan is still running, disconnect the connector that has the yellow and yellow/white wires from the relay. If the volvo fan still stays running, then you know for sure the relay is defective.
Why is my car fan not turning off?
Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor.
Where is the fan control module?
The fan control module can be located in a variety of places on the vehicle. The most common is on the radiator fan and condenser fan assembly as shown above. Other possible places are along the firewall of the vehicle or even under the dash.
How do you test a radiator fan?
How to Check a Radiator Fan
- Determine whether your radiator fan is manual or electric.
- To check an electric radiator fan, start the car and let it get up to the temperature where the fan normally kicks on.
- Use the volt meter to test if there is power to the wires.
- Normal voltage for a radiator fan is around 12 volts.
What does a radiator fan control module do?
An A/C fan control module helps to control the blower that supplies air to the cabin of a vehicle, as well as the cooling fans. The module helps to make sure that the cool air that is produced within the A/C system of a car is blown into the cabin.