Where is the cooling fan switch located?
The cooling fan switch should be located near the thermostat housing on the left side of the engine, behind the distributor assembly.
Where is the fan control 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. So, unplug the connector at the relay and repeat the check for power. If you get power, you've got a bum relay.
How do you test a VW fan switch?
5:299:25vw Golf mk4 fan switch check climatronic fan check guideYouTubeStart of suggested clipEnd of suggested clipLevel one two three and what you need to do to check the low speed operation is join number one toMoreLevel one two three and what you need to do to check the low speed operation is join number one to number two or I should say the top one to the one that's on my right-hand.
How do I know if my fan switch is bad?
The best way to tell if your cooling switch is faulty is to listen to your engine while you drive. You know how your engine is supposed to sound, and if you notice that you don't hear the fan as often as you normally do during your afternoon commute, you might have a failing switch.
Which relay is for the cooling fan?
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.
How do you bypass a radiator fan switch?
8:1910:34How to Install a Cooling Fan Bypass Switch on 1995-2005 Cavalier ...YouTubeStart of suggested clipEnd of suggested clipAround behind the battery and underneath the air box. And then these wire for the switch. Goes intoMoreAround behind the battery and underneath the air box. And then these wire for the switch. Goes into the cabin. Through this hole in the firewall you can see that red wire.
What sensor turns on the radiator fan?
coolant temperature sensorOn most modern cars, the cooling fan is controlled by the Engine Control Unit (ECU) which gets a signal from the coolant temperature sensor.
How do I manually turn on my radiator fan?
0:155:42Installing a Manual Fan Switch for Electric Radiator Fans - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow any car that has an electric radiator fan can be set up with a switch now the idea is to use theMoreNow any car that has an electric radiator fan can be set up with a switch now the idea is to use the switch to ground out one of the pins on the fan control relay.
Does the coolant temp sensor control the fan?
As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on. Additionally, it may signal the need for a richer fuel mixture or open the exhaust gas recirculation.
What causes cooling fans not to come on?
Six things may prevent an electric cooling fan from coming on: Defective temperature switch, coolant sensor or other sensor. Engine thermostat is stuck OPEN (engine never gets hot enough to turn on the fan) Faulty fan relay.
What causes the fan not to come on?
What causes the radiator to stop working? 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.
How do you fix a fan that won't turn on?
Floor Fan Stopped Working? Your Troubleshooting GuideCheck the Cord. It sounds simple, but your first step should be to make sure the cord is securely plugged in. ... Check Your Circuit Breaker. ... Check for Power to Your Outlet. ... Check the Fan Fuse. ... Replace the Cord. ... Clean the Fan. ... Grease the Motor. ... Call Customer Support.More items...•