It is the last line of defense between you and an overheating engine. If that doesn't work, unplug the fan. 2.4ltr 4 cylinder. THIS IS A STEP BY STEP WAY TO CHECK YOUR COOLING FAN IF YOUR CAR IS OVERHEATING OR FAN IS NOT WORKING. Place one end of a fused jumper wire on one of the relay's control terminals. The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. I tried to replaced control unit with used one, but non of used unit worked. This article applies to the Honda Accord (1990-2002). Your thermostat could be stuck, and is causing the car to run hot. The blower motor not working I have changed the resistor and the the motor is good - Answered by a verified Mechanic for Honda. Order Cooling Fan Motor for your 2007 Honda Accord and pick it up in store—make your purchase, find a store near you, and get directions. AC comp engages when u turn it on, all lights works, etc, but nothing at all comes out of the ve … read more By a quick process of elimination, you can solve the problem and get back on the road without fear of the engine overheating. Refer to the top or side of the relay to locate these terminals. If so, a replacement fan costs upwards of $45. The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. If there is no power to the cooling fan, then check the fuses and see if they are burned. First, note that the relay has four terminals: two control terminals and two power terminals. research process is at the heart of what we do and remains our number one priority. control unit fixing is extremenly expensive $$$ for me. Honda Accord 3.0L 2007, Driver Side Engine Cooling Fan by TYC®. dominic, if you connected a positive wire to the blue or blu/blk wire and ground to the blk one, the fan would have to come on. If this is the case, it might be time to check if the fan is working properly, and is cooling things down under the hood. Not sure if the lack of radiator fluid would contribute to this problem or not. VehicleHistory.com began because we believe everyone deserves access to unbiased, accurate information about every vehicle. Notes: The radiator cooling fan is an integral part of your car that is responsible for cooling the radiator of your car.The radiator cooling fan does this by either pulling or pushing air into the radiator keeping the radiator temperatures within the safe levels. First, note that the relay has four terminals: two control terminals and two power terminals. Radiator cap: Your radiator cap regulates the pressure in the cooling system, acting as an escape valve if the pressure gets too high. Because the radiator fan is often drawing so much power, there is often a relay that is powering the coolant fan. I checked coolant level which is OK. Your Honda Accord‘s radiator fan has one of the most important jobs on the vehicle. Your Honda will not re-start (once it has overheated). If the fuse is good, then check the cooling temperature sensor / switch. Check the wirings going to the radiator fan from the control unit or relay. I have noticed when the motor goes on and off a clicking noise is coming. Run the jumper wires between the connector's two electrical terminals. the ECT sensor and the ambient air temperature sensor.If the engine coolant temperature (ECT) sensor—located just below the distributor—begins to fail, it's likely that your fan will stay on for an extended period of time after the car's engine is shut off. So, to make a long story short, if you have a 2007-2009 Factory Service Manual I suggest adding the box Honda left out of the Symptom Troubleshooting Index on page 21-14: ... the condenser fan runs on high, but the radiator fan does not run at high speed. Although this info applies to any 1998-2001 4 cylinder Honda Accord, the basic testing procedure (in each test step) can by applied to any Honda. If you find your fan continues to run after you shut off your car, then check out this guide. When you touch the ground, the relay should make a clicking sound, indicating that the contacts inside the relay are working. If necessary, a replacement relay costs around $20. Climate control unit is single unit have single disc. The upper radiator hose busted this weekend and I noticed that with the temp pegged the radiator fans never turned on. This article will give you some step-by-step solutions on how to repair your radiator. I'm working on 2007 Honda Accord. This article will help you ... How to Replace Radiator Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Of course only if connected it directly. The radiator fan is not working properly; the fan motor goes on before the engine is on. Learn About Us. It does not close the circuit to ground until the coolant reaches about 225 deg. Blower motor is not getting ground from the control. Of course only if connected it directly. then check your temp sensor. When you think of a good-performing engine, you might think of an air intake or an ... Why is My Car Overheating? ALL HONDA ACCORD ARE THE SAME BETWEEN 2003-2011 I tested found readitor fan motor is bad. If necessary, a replacement relay costs around $20.There are three ways to check for a bad terminal. I tried to replaced control unit with used one, but non of used unit worked. A shortcut would be to check if the fan has power and ground when it is not running. Honda Accord owners have reported 6 problems related to cooling fan (under the engine and engine cooling category). In this is the case, you will need to replace the relay. Here is how to test if the fan is functioning properly: If the radiator fan is in working condition, move on to the next step. Run jumper wires between the connector's two electrical terminals. Also getting CEL codes P1259,P0420,P0401,and P1457. ALL HONDA ACCORD ARE THE SAME BETWEEN 2003-2011 You also no longer hear the reassuring sound of the radiator fan kicking in when you pull into your garage. Fitment: 2003-2007 Honda Accord 2.4L . If the fan does not turn on, you will need to replace it. The connector has four holes: two are for the electrical wires of the thermo switch plug and the other two are for the plug's locking mechanism. Your car's cooling system allows ... How to Replace Thermostat Place the other end of the fused jumper wire on the car's positive (red) terminal of the battery. The radiator fan itself may be faulty. There are two identical relays in the underhood fuse box that control those fans. i'm not sure on a honda but most newer cars have multiple sensors so you will have to find out which on is for the fan. Diagnostic Procedure ... it often does in another. Follow these steps to figure out why your radiator has stopped working, and what you can do to repair it. If this sensor is faulty, a replacement costs around $25 to $45. Also please check out the statistics and reliability analysis of Honda Accord based on all problems reported for the Accord. If it doesn't work, remove the fan, to check it over. If the thermo switch is in working condition, move on to the next step. This article applies to the Honda Civic/Del Sol (1992-2000), and Accord (1990-2002). See Contact Test in Step 1. Locate the ECT sensor, which is just below the distributor. I diagonised the car at honda deleaership & they mentioned that blower motor & resistor have power. The blower fan (ac/heat) completely stopped working (no prior problem). THIS IS A STEP BY STEP WAY TO CHECK YOUR COOLING FAN IF YOUR CAR IS OVERHEATING OR FAN IS NOT WORKING. Check your fan relay to see if it is clicking on when you turn the car and A/C on, and check the fuse to ensure it is not blown. Of course, this relay can get damaged, which will cause the radiator fan to not coming on. The ECT sensor monitors the coolant temperature, and allows the fan to turn on if the coolant is too hot. So, to make a long story short, if you have a 2007-2009 Factory Service Manual I suggest adding the box Honda left out of the Symptom Troubleshooting Index on page 21-14: ... the condenser fan runs on high, but the radiator fan does not run at high speed. Solution: Just replace the radiator cap with a new one. Post your question and let the Vehicle History user community help you out with the right answer. Hi, I have an honda accord 2007. By logging into your account, you agree to our, Honda and Acura Model-Specific Technical Forums, Honda and Acura Appearance / Cosmetic Forums, New radiator fan switch relay (if necessary). There are three ways to check for a bad terminal. Your Honda Accord‘s radiator fan has one of the most important jobs on the vehicle.It is the last line of defense between you and an overheating engine. If the radiator fan is not working, it’s a serious problem. You'll also see one (or more) of the following symptoms: Your temperature gauge will max out (as you're driving around). Honda Accord Heater Not Working: Diagnosis. dominic, if you connected a positive wire to the blue or blu/blk wire and ground to the blk one, the fan would have to come on. Diagnostic Procedure ... it often does in another. They are designed to only run when needed. ... 2005 Honda Accord- Fan blower for AC/Heat interior will not work with selector knob in any position. Its seems issue in control assembly (climate control module). also you need to … If the radiator fan is not working, it’s a serious problem.. Just because the radiator fan is not on does not mean that it is not working. 2005 honda accord 2.4L and my radiator fan isn't turning on all of a sudden- and obviously at idle my car is now - Answered by a verified Mechanic for Honda We use cookies to give you the best possible experience on our website. The most recently reported issues are listed below. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant. With the jumper attached, the fan should run continuously when the ignition is in the "ON" position. Refer to the top or side of the relay to locate these terminals. If the radiator fan motor relay fails, the most obvious symptom that your Honda Accord will experience is overheating due to radiator fan not coming on. they found issue in control unit fo the system. Mat Miller The radiator fan switch relay may not be supplying power to the fan. does not research or authenticate any of the Answers provided. The results of your tests will help you troubleshoot the reason your Honda Accord's radiator fan motor isn't working. SOURCE: 2001 honda accord, air conditioner is not working, one fan is for the a/c it will cycle on when the a/c is turned on the other fan should be linked to the temperature sensor. Check here for special coupons and promotions. Have an '03 Honda Accord 4 cyl. VehicleHistory.com ... 2007, 11:17 AM ... Radiator Fan Not Working. Is your engine temp running a little high? If you do not get a reading of infinite resistance, the relay's inner contacts are stuck in the closed position. My inside fan is not blowing air at all. The ohmmeter should read zero. Pull one at a time; if it makes no difference put it back in and pull the other. Another easy way you can check if the radiator fan switch relay is bad is to swap the radiator fan relay with the condenser fan relay. Overheating could cause irreversible damages, so find out how to diagnose and prevent it. Honda Accord (2007) – fuse box diagram Year of production: 2007 Fuse block (Engine compartment) Number Ampere rating [A] Circuits Protected 1 10 Left Headlight Low 2 (30) (Rear Defroster Coil)*1 3 10 Left Headlight Hi 4 15 Small Light 5 10 Right Headlight Hi 6 10 Right Headlight Low 7 7,5 Back Up 8 … Follow these steps to test it: Why Does My Fan Keep Running After the Car is Turned Off? My car is Honda Accord 2007 LX 4-dr sedan. - YouTube It's ... How to Replace Radiator Also, check the connector plugs at the relay and control unit. If this is the case, you will need to replace the thermo switch. If you don't hear the clicking sound, the relay is not working properly and will need to be replaced. The thermo switch (also called the cooling fan switch) sends a signal to the cooling fan, so the fan turns on if the coolant gets too hot. First check the cooling fan circuit. If it sticks in the open position, there will be insufficient pressure in the system, and the coolant will not get hot enough, reducing the heater’s output. Fan is not blowing air inside the car. Why is my 2007 Honda Accord radiator fan not working? If it reads infinite resistance, the relay's contact points are not allowing current to pass through. My inside fan is not blowing air at all. This article applies to the Honda Accord ... How to Install Air Conditioning Unit © 2021 Vehicle History Inc. All Rights Reserved. 2007 Accord Coupe 3.0 V6 6-Speed Got home from work today, super hot and humid, fan stayed on after the key was out, I think "Probably a standard feature" (never noticed it doing this before) Fall asleep for about 4.5 HOURS, to go outside and find it … and he installed that I thought I have Done the issued clear. Recently changed out radiator, upper and lower hoses, and heater hose. The cooling fans and condenser fans either are not coming on from a loss of power or the motors are burned up. James M July 16, 2020 31 Views 1 Answer Donald R answered on July 16, 2020 If the radiator fan in your 2007 honda accord is not engaging or your vehicle is overheating, check the fan motor and engine temp sensor for replacement. The fan may be bad, or it may not have power going through to it. Try the fan fuses,to see if they are blown,if they are,most likely a bad fan motor.Check the fan relays also.to see if they are getting power to them .If the relay is not getting power to it when the fans are supposed to come on,then replace the coolant sensor.the fans surly are not both bad.But if one is the fuse may have went bad.If it has a module instead of the old fashion relay,it most likely went out.Replace the module and the one of the fans … Swapped A/C and cooling fan relays and both fans come on with both relays, so assume relays are OK.