Overheating: When your fans aren’t working, you’re going to be experiencing a lot of overheating problems, whether it be with the video card, CPU or other components. It’s not a giant ice cube with a fan blowing over it, which is what one of our old College pals honestly believed. Issues with the cooling fan, cooling fan relay, or fan circuit can cause code P0480. Both fans should come on when the A/C is … But, actually, fans are integral to keeping components running at optimal temperatures. The statements expressed above are only for informational purposes and should be independently verified. One of the very first indications that you might have a faulty coolant temperature sensor is when you notice a drop to your fuel economy. 2) The symptoms of a radiator fan that doesn't work is overheating causing premature engine failure. A bad fan clutch may not engage properly or at all, and as a result, will disable the fans or prevent them from working at maximum efficiency. Several symptoms may point to a bad or failing thermo coolant fan switch. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. If you've experienced these problems, check your cooling fan and switch. 3)The cost would depend on what is wrong (if anything) there is alot more components than just a fan and a cable, this includes temp sensors, relays, switches etc. A properly-functioning fan clutch is critical to engine reliability, as it works to maintain a safe temperature range. Systems that are actively controlled include: The... P0256 P0256 code definition The P0256 Trouble Code indicates injection pump fuel metering control “B” malfunction (cam/rotor/injector). Your cooling system also has a thermostat that keeps track of the engine’s temperature, once it gets too hot, the switch – which is made up of two wires – flips the fan on to cool the radiator down. This car is a 1984 VW Scirocco, but this procedure should be similar on any 1975-1993 Watercooled Volkswagen. The cooling fan is turned off and on as needed by the engine's control computer based upon information from the coolant temperature sensor. With it being such a small part, you’d think it wouldn’t affect things too much. 1. The fan clutch is a cooling system component that controls the operation of the engine cooling fans. Since this is an electrical component, when faulty there is often times not much predictability as to when it works and when it does not. Another symptom of a problem with the coolant temperature sensor is an overheating engine. Figure 3. Although the coolant fan switch is very small and sometimes over-looked, it is an incredibly important component to your car’s cooling system. Check the coolant. A faulty coolant temperature sensor may result in a fan not being properly used, which may cause the engine to overheat. Basic testing for any relay here. A properly-functioning fan clutch is critical to engine reliability, as it works to maintain a safe temperature range. © 2020 J&R Automotive. Taught me more stuff about my truck that I didn't know and even recommended some upgrades I could do to make it look better. The A/C fans that are mounted in near the radiator of the car are also controlled by this module. A failing fan clutch could leave you stranded with expensive repair bills, so pay attention to these symptoms. If your cooling fan runs continuously, check the fan relay or cooling fan temperature switch, or engine coolant temperature (ECT) sensor. Engine overheats. Amongst the most obvious ones are: The AC Won’t Turn On The cooling fan … There are springs within the fan clutch that can wear out or corrode over the years. The fan clutch is responsible for controlling the operation of the cooling fans. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. What the Heck is an AC Pressure Switch? This electrical component is used to control the air conditioning system of a vehicle. “Happy” earns his name! What the P0256 code means When this code appears, it means that the powertrain control module has found that the signal voltage to... P0480 code definition P0480 is a general OBD2 trouble code that refers to the a malfunction within the cooling fan control circuit.... Hello, thank you for writing in. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. If you've experienced these problems, check your cooling fan and switch. If the cooling fan motors burn out or fail, the cooling fans will be disabled. © We here at J & R Automotive hope you never have to find out. If the switch isn't working, it should be replaced. Your cooling fan switch activates your fans to cool your radiator. An overheated engine can quickly get ruined and lead to expensive repair bills. Pay attention to your dashboard temperature gauge, too, and if your vehicle has been running hotter than normal, bring it in. Below is a list of the tell-tale signs that you might be dealing with the … The radiator fan does a very important job; it cools the radiator to stop the car from overheating. If the switch isn't working, it should be replaced. Fast, free online quotes for your car repair. They can, and the most common occurrence is with the CPU cooling fan. The enemy of components is heat — too much heat can destroy your hardware, and that’s why fans are so important. Common signs include engine overheating, the Check Engine Light coming on, and a broken or shorter signal wire. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. Okay, admittedly intermittent fan operation means you’d be listening to it, but what we mean by this is a fan that turns on and off when it shouldn’t, such as when you’re driving fast and have plenty of air pulling through your vehicle’s grille to keep the engine cool. Very friendly and helpful despite an unexpected situation! Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. 3. Noisy Fan. Faulty cooling fan 3 Fan control relay harness is open or shorted Fan control relay circuit poor electrical connection Fan cooling fan harness is open or shorted Fan cooling fan circuit poor electrical connection How is the P0482 MAZDA code repair? Your vehicle is the most important thing to us, so give us a call at 931-456-6569. If your car starts overheating, pull off the road as quickly as you safely can and turn off the engine. Take into account your driving conditions and the weather outside, and if nothing is out of the ordinary and your fan isn’t turning on as often as it normally does, let us have a look. If the switch isn't working, it should be replaced. Listed below are just some of the possible causes of the P0480 code: Faulty cooling fan relay; Faulty cooling fan Website Managed By Leads Near Me ®. A faulty coolant temperature sensor may result in a fan not being properly used, which may cause the engine to overheat. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. LEARN MORE. The cooling fan is turned off and on as needed by the engine's control computer based upon information from the coolant temperature sensor. A faulty radiator fan can cause many problems. It could be faulty. Actually, you know what, if you want to know what a AC Pressure Switch is, then you kind of need to know how the AC actually works. This could be any one of a few problems. A faulty coolant temperature sensor may cause an engine to run hot and increase fuel consumption. Symptoms of a Defrost Problem When a frost-free refrigerator has trouble cooling, or the freezer begins to build up frost, there may be a problem with the defrost mechanism. If the switch isn't working, it should be replaced. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. When this happens, the result can be extremely damaging, resulting in thousands of dollars in engine damage. This could be a result of a bad BCM (Body Control Module). All Rights Reserved. Troubleshooting Shortcuts The cooling fan in the engine compartment should turn on to pull air through the radiator and A/C condenser. These are some of the most common: Engine overheating: A bad radiator fan can cause the engine to overheat, especially at low speeds. The engine cooling fan, made of plastic or metal, isn’t hard-connected to the fan pulley or water pump, but instead is soft-connected via the fan clutch. This is a critical component that, when faulty, must be repaired immediately. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. Symptoms of bad circuit opening relay. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. Symptoms of a Bad Coolant Temperature Sensor . If the switch isn't working, it should be replaced. If everything else seems to be fine, the fan clutch is the most likely cause of radiator fan failure. The fan clutch is the assembly that holds the radiator fan to the engine and makes it turn. In this case, it’s important to note three separate indicators that spell possible trouble with your vehicle’s cooling fan switch. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. If you've experienced these problems, check your cooling fan and switch. The fan is on but rotating very slowly Basic testing for any relay here. Engine will have bad mileage and low power and could overheat when a coolant temperature sensor is bad . The most obvious symptom of a faulty cooling fan system is the increase in warm or hot air in your cabin. Fortunately, when this happens your Check Engine Light will be on and depending on the model of the vehicle, an additional “engine hot” symbol will also appear in your dash. 3)The cost would depend on what is wrong (if anything) there is alot more components than just a fan and a cable, this includes temp sensors, relays, switches etc. This is a very critical time to get the car home or to a place where it will not be driven until it is looked at. This is a module in your car... engine heat climbing above what it should be. When temperatures exceed this threshold, many other components begin to fail, in addition to the performance of the engine declining. Intermittent aside, if your check engine light comes on while you’re driving, it could mean your cooling fan switch is failing. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. Symptoms of a Faulty Cooling Fan Module. A faulty cooling fan relay can also negatively affect air conditioning (A/C) performance. If the motor fails the blades will not be able to spin or generate air flow. At O'Reilly Auto Parts, we offer quality electrical components, including the cooling fan switch you need for your repair. Usually a faulty cooling fan relay will produce a few symptoms that can alert the driver that service may be required. Both … If you've experienced these problems, check your cooling fan and switch. These are some of the most common: Engine overheating: A bad radiator fan can cause the engine to overheat, especially at low speeds. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. Before going into the necessary steps to troubleshoot the fan in your vehicle, though, a brief fan operation description follows. What happens if the switch fails to work? Some of these symptoms include: Warm air in the cabin. Once the temperature reaches this cooling stage, the coolant fan will shut off. Most are actively controlled, such as the power windows and power door locks, by means of pressing a button. If this burns out or fails, you’ll need to replace it. Chances are it is low and mixing with the oil. Pontiac Grand Prix - Vehicle Engine Cooling Inspection - Indianapolis, Indiana, Subaru Outback - Control Arm Assembly Replacement (Front Lower Left, Front Lower Right) - Sacramento, California. If you’re a driver who gets lost in your music or spends your commute on the phone – hands-free! Came to replace brakes and did them extremely fast. One of the first symptoms of a potential problem with the cooling fan resistor is engine overheating. When the A/C is turned on, the fan moves air across the A/C condenser, thereby removing heat from the vapor refrigerant inside. Some of these symptoms include: Warm air in the cabin. If you've experienced these problems, check your cooling fan and switch. 2) The symptoms of a radiator fan that doesn't work is overheating causing premature engine failure. 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 engine coolant sensor is a high failure item which is replaced regularly at any repair garage. The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. The cooling fan motors work together with the cooling fan blades to pull air through the radiator. They are. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. It could also turn on and off constantly, which is an annoyance you’re sure to notice over your music. A second fan for the condenser. Symptoms of a Faulty Cooling Fan Module. However, it is a highly variable factor, and the labor cost in certain cases can be higher than $140. Signs of a Bad … As mentioned earlier, there are two wires inside the switch. When a relay becomes stuck, the circuit remains closed. Get a fair & transparent quote instantly before booking. 1) Your cooling fans won't kick in unless the vehicle reaches a certain temperature. Troubleshooting. – then you probably don’t pay attention to the sound of your fan and when it turns on and off. You can usually get a pretty good idea that your computer is overheating if you experience frequent system shutdowns with no apparent cause. If the switch isn't working, it should be replaced. If you have problems with the radiator fan, you need to take care of them immediately or you could cause serious damage to your car. A blown head gasket is most likely what your issue is. This sensor is responsible for causing a computer malfunction which can cause the check engine light to come on. The reason this happens is as follows: The faulty sensor might send a wrong signal to the computer, leading to a miscalculation in the engine timing and fuel calculation. In other cases, the switch will turn on and stay on well past the cooling temperature threshold, resulting in the fan running even when the engine is off. It’s important to know that if the coolant temperature sensor of your car is failing, it could damage your car engine. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not … The coolant temperature sensor, abbreviated as CTS, in your car is an important device that enables the control unit to give alerts if the engine is overheating or if the temperature within the system is rising for some reason. If the switch isn't working, it should be replaced. Any sort of overheating issue should be tended to as soon as possible to avoid the possible engine damage. Even if that isn’t the problem, it’s crucial to bring your vehicle in right away for a diagnostic check, as the check engine light means something is wrong no matter what. If you've experienced these problems, check your cooling fan and switch. A faulty radiator fan can cause many problems. You will need to remove the intake tube. A coolant fan switch is a small and very simple switch comprised of typically two wires. 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. 1) Your cooling fans won't kick in unless the vehicle reaches a certain temperature. If you have a faulty cooling fan relay, it will typically produce symptoms that you can identify beforehand so that you know when to bring your vehicle in for service. When the A/C is turned on, the fan moves air across the A/C condenser, thereby removing heat from the vapor refrigerant inside. document.write(new Date().getFullYear()) Faulty cooling fan; Fan circuit issues, such as damaged wires or poor connections; Faulty coolant temp sensor, wiring, or connections; Issues with the PCM, such as software in need of an update ; A problem with the totally integrated power module (Chrysler products) What are the Common Symptoms of the P0480 Code? Check Engine Light and Overheating. Overheating. Start by checking the "Possible Causes" listed above. by Jeff Engstrom on As a result, electric power to the fan motor doesn’t stop and the fan continues to run. There are a lot of reasons why the P0480 code might register in your vehicle. We are J & R Automotive in Crossville, TN, and we take pride in our expertise and customer service. If the cooling fan motors burn out or fail, the cooling fans will be disabled. The most common symptom of a faulty cooling fan motor are cooling fans that do not come on. In This Article: Cooling Fan Operation. Awesome guy! YourMechanic All rights reserved. The engine temperature sensor could be faulty, which can cause confusion in temperature rising, thus preventing the fan from blowing. Dodge Ram 1500 - Brake Pads Replacement (Rear) - Elk Grove, California. As such, our recommendation would be to have an expert mechanic from YourMechanic come to your home or office to diagnose the problem. If the switch isn't working, it should be replaced. P0042 OBD-II Trouble Code: HO2S Heater Control Circuit (Bank 1 Sensor 3), P0726 OBD-II Trouble Code: Engine Speed Input Circuit Range/Performance, P2293 OBD-II Trouble Code: Fuel Pressure Regulator 2 Performance, P2141 OBD-II Trouble Code: Exhaust Gas Recirculation Throttle Control Circuit Low, P0256 OBD-II Trouble Code: Injection Pump Fuel Metering Control "B" Malfunction (Cam/Rotor/Injector), P0480 OBD-II Trouble Code: Cooling Fan 1 Control Circuit Malfunction. A bad thermostat can cause the car to swelter, as the thermostat is a heat-sensitive control device situated at the radiator hose. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics. If you've experienced these problems, check your cooling fan and switch. If you've experienced these problems, check your cooling fan and switch. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. Every Every feature in your car is controlled by a switch or button. Symptoms of a faulty cooling fan switch include an overheated engine and an active Check Engine light. 2) The symptoms of a radiator fan that doesn't work is overheating causing premature engine failure. Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. When either of the two wires short out, this can cause intermittent operation as well, again resulting in intermittent responses to the fan turning on or off unexpectedly.