How do you test a VW fan control module?
To test a fan motor, unplug the electrical connector at the motor and use fused jumper wires to connect battery power and ground directly to the fan. If the fan does not operate, replace the motor. 2. If the motor tests OK, check the cooling fan thermo switch, located at the bottom of the radiator on the driver’s side.
Where is the fan control module located?
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.
What does a 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.
Can a bad thermostat cause radiator fan not to work?
If this thermostat doesn’t open when the engine reaches the working temperature, the coolant will stay inside the engine block and the engine will start to overheat. This will result in the radiator fan not working.
How do you test a radiator fan module?
The quickest way to tell whether or not the electric fan(s) are working is to start the engine. Then, let it reach normal operating temperature and then turn the A/C on. The cooling fan in the engine compartment, should turn on to pull air through the radiator and A/C condenser.
How do you test a fan control relay?
Starts here9:13How to Test Cooling Fan Relays – Low and High Speed – YouTubeYouTube
Does the ECM control the fan?
Electric fans generally are controlled by a relay, which in turn is controlled by the Engine Control Module (ECM). The engine is still running, and now I focus on the DMM reading. Typically, the cooling fans should come on when this temperature reaches 200 to 220 degrees Fahrenheit.
Where is the fan relay switch located?
The cooling fan relay is normally located in either the underhood fuse and relay center or mounted to the electric fan assembly behind the radiator.
What causes the radiator fan not to work?
The most common reasons a radiator fan is not working are luckily due to a blown fuse, bad relay, or a broken wire. It can also be caused by a faulty coolant temp sensor, low coolant level or the fan itself can be damaged.
What controls the radiator fan?
On most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor. If it’s not working, the fan won’t turn on when it needs to, which means the engine might overheat.
Where is the fan control module on the radiator?
The Fan Control Module is on the lower driver side of the radiator… or it can be located on the driver side lower framerail.”. This is what it looks like (just a different number 🙂 Hope this helps, good luck.
Where is the fan control relay located?
Upgrade to an SSD, replace old batteries, and get to class. nancy, “The Fan Control Relay is bolted beneath the battery tray. That’s a known failure item when the fans are inoperative. The Fan Control Module is on the lower driver side of the radiator…
What is the 4th generation of the Volkswagen Jetta?
The fourth generation Volkswagen Jetta, also called the MK4 or the Bora, is Volkswagen’s family sedan. Where is the fan relay located on a 2000 VW Jetta? Answered!