radiator fan resistor test

You can stope here if your blower motor resistor passed all of the continuity tests in this test section. The radiator fan assembly has two fan motors. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! Specifically, a defective fan series resistor can cause one or both fan stages to fail. The fan should 'ramp-up' from 0 to 100% and back to 0% speed. Top-Filter: Hersteller . Very detailed thank you! I havent fixed it yet, but just pull it out and look at the connectors in the resistor and the wiring. This reduction in the blower motor's current is the end result of the resistor converting this electrical energy into heat energy and boy does the resistor assembly get hot! You’ll need to locate and test the engine temp sensor. The Radiator Fan Relay. Check here for special coupons and promotions. Hello fellow Jeep fans, I got a 2008 Jeep WK 3.7L and noticed the rad fan isn't working at all. Do NOT follow this link or you will be banned from the site! I'm guessing the motor went as it's quite rusty on the outside casing. Cooling Fan Resistor Yl 7783b For Fiat Oe 13248240 6845796 I know my cooling fan resistor is dead the connector as well cooling fan ford focus resistor i have a 2001 ford focus neither cooling fan is working checked ford focus cooling fan resistor relay install early models. If you don't have a tester you can check the fuses, then swap relays from working to non working sides or speeds. This is what the math would look like: 12.5 ÷ 0.4 = 31.25 and this would translate to 31.25 Amps. If the fan does not operate check the Measuring Value Block (MVB) Group 135, field 2 will show you in (%) the current fan output speed from the ECM. The cool thing is that you can check the integrity of each resistor and the state of the thermal fuse with a multimeter and that's how I'll show you how to test it in this tutorial. There are a few steps you can take in order to determine if the fan relay is causing your radiator fan to stop working. A problem with any of these three components can cause a problem with the fan, so it is best to test their integrity before making any repairs or replacements. Order Cooling Fan Resistor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. 2020 popular wholesale, Related Products, Promotion, Price trends in Computer & Office, Consumer Electronics with radiator fan test and wholesale, Related Products, Promotion, Price. The fan clutch has a spring inside of it to help the fan spin faster. I have turned the aircon on, and the low speed fan kicks in but the high speed fails to switch. You'll probably see a resistance of about 7.1 Ohms ( Ω). Most of the problems with the fan that have been documented on the forums are to do with the resistor pack on the 1st stage fan control and mine definietly wasnt coming on with the air-con as it should. This fan was selected due to its moderate noise and relatively good performance compared to other fans with similar noise characteristics. Once the temp gets so hot, the ECU commands the radiator fan to come on. JavaScript is disabled. Buick Encore Radiator Fan Not Working Causes Bypassing the radiator fan switch. Although fan1 (low speed) does not working, my car's engine temperature is always 90 degree. Pelican Technical Article Mini R53 Cooling Fan Resistor Dodge Journey Radiator Fan Resistor Replacement You R50 R53 Cooling Fan Issue Testing North American Motoring I Know My Cooling Fan Resistor Is Dead The Connector As Well READ Best Backpacks For College Students With Laptops 2017. Let's analyze your test result: CASE 1: The amperage draw is under 40 Amps. The one blower motor speed that doesn't depend on the blower motor resistor assembly is HI since the blower motor switch accomplishes this speed by completely bypassing the blower motor resistor assembly. If the volt meter reads 12 volts, the problem is not the power and the fan needs to be replaced. Ive checked the fuses and the relays and all good. Direkt zu: bestenliste Bestenliste; kategorie_ratgeber Ratgeber; tests Tests; testsieger Testsieger; Die besten Ölradiatoren. Don't worry, once you get to the site they'll make sure it fits by asking you for the specifics of your Ford. 3 Tests 4.600 Meinungen. You’ll need to locate and test the engine temp sensor. If it doesn't fit, they'll find you the right one. Set your multimeter to Ohms mode (Ω). Don't have a multimeter or need to upgrade yours? The cooling fan resistor is an electrical resistor that limits power to the fan in steps, so that the fan can operate at different speeds according to the cooling system’s demands. All Rights Reserved. For a better experience, please enable JavaScript in your browser before proceeding. It sends signals to the radiator fan to turn on when the temperature crosses 172°F. The illustration in the image viewer identify the male spade terminals on the blower resistor. How do I test that with the. Stock Status:In Stock. It controls power to the fan for low and mid speed fan operation. shows a typical bench test setup. Each has it own fuses. Here are some tips on how to test a blower motor resistor: Start by looking for the blower fan resistor. 1). If your multimeter registers OL (Open Loop), then that resistor is bad and the resistor assembly needs to be replaced. © 2011-2020 Abraham Torres-Arredondo Your multimeter should register continuity. If you want to double check the fuses, they are C8 (radiator fan right) and C10 (radiator fan left). Easy to use parts catalog. Where is the temp fan switch? Filtern. This is the 140mm version of the Thermaltake Riing Radiator fan series. The easy way to test these is with the Durametric software, a Porsche PST2, or PIWIS tester. I'm tellin ya, I have the EXACT same problem currently. Guessing your LS is only a two speed, high and low. About 3% of these are Radiator, 1% are Other Auto Cooling System. Let's take a look at what your test results mean: CASE 1: One or more of the resistors you checked with the multimeter DID NOT have continuity. The first thing we'll do, to find out if the blower motor resistor is bad (or not) is to check the continuity between certain pins of the blower resistor. All 120mm radiator testing was done with a single fan, a Delta WFB1212M turning at 2100 RPM producing 72.4 CFM (no restriction) with a noise SPL of 34 db(A). Take your multimeter and set it to ohms. I tried the test of checking the fuses linked to it and they all seem fine. Step 5. Once the temp gets so hot, the ECU commands the radiator fan to come on. Your multimeter should register continuity. Have a Merry Christmas and a Happy New Year! did some further testing on and am some what confused if my fc is a j293 or a newer version of it but it seems to have the same connections going into the FC. When I start the car, I don't get the 20-second fan run that I've seen is standard on the car. Recently, I was driving my 2015 Jeep Wrangler JK Unlimited through a parking lot on a 95 degree day, and after leaving a stop sign, a check engine light flashed on (later I would learn it was a P0480 Cooling Fan Relay 1 Control Circuit), and shortly thereafter my Jeep overheated. I have checked the obvious fuses in the box over the battery, and also checked the terminals on the two main fan relays but they all look good to me. Repeat the tests just to make sure of your test results. If you don’t have resistance values, but you are able to deduct that the Ohms values remain the same during cold and hot temperatures, you should replace the sensor in order to fix your radiator fan. If I were to test our fictitious 200 K ohm resistor with this particular meter, I would set the scale at 200 K ohms. If this circuit is open, showing infinity on the Ohmmeter, the blower resistor must be replaced. The radiator fan on these cars has two separate speeds they can run at, LOW and HIGH. CASE 2: All circuits tested had continuity where indicated in the test steps. Normal voltage for a radiator fan is around 12 volts. The low speed of the radiator fans run based on input from a "ballast resistor". Honda  |   Contact of R6 goes to fan motor via the resistor. Chrysler  |   The next step indirectly tests the blower switch on the A/C Heater control panel by bypassing the blower resistor with a jumper wire: TEST 2: Using A Jumper Wire To Bypass The Blower Resistor . The next step indirectly tests the blower switch on the A/C Heater control panel by bypassing the blower resistor with a jumper wire: TEST 2: Using A Jumper Wire To Bypass The Blower Resistor. The resistor is not sold as a separate part by Saab, but it can be easily replaced by a generic 50-75 watt resistor of a similar value. When replacing your electronic cooling fan you will want to work with the engine cold and disconnect the batterys negative cable. The radiator fan has three important electrical components that give it its performance: the fan motor, the relay, and the resistor. Blower Motor Resistor Test. Step 4. The fan should 'ramp-up' from 0 to 100% and back to 0% speed. it must not be short circuit I guess. Visually inspect the condition of the blower resistor's coils and it's electrical connector. Do you know how to test radiator fan with multimeter? NOTE: If the color of the wires described above DOES NOT match what's on your particular vehicle, don't worry. The resistor is a cheaply made wire-wound, ceramic-insulated type, about 0.20-0.25 ohms. Ford's blower motor resistor connectors usually are found melted. Then I checked the radiator fan resistor with multimeter. and it's pins were short circuit. A problem with any of these three components can cause a problem with the fan, so it is best to test their integrity before making any repairs or replacements. Your Ford Focus‘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. Hi All, My E70s electric fan appears to be inop, but it's not the fan itself. Gefiltert nach: Radiator; Alle Filter aufheben; Sortieren nach. Disclaimer. In the case of this 2006 Gransport, the low speed turns on at 95 deg C and shuts off at 90 deg C. Conversely the high speed turns on at 100 deg C and shuts off at 95… Ford  |   The circuit descriptions are the same for all of the Ford vehicles covered by this repair tutorial (see the ‘Applies To:’ box on the right column). You'll probably see a resistance of about 3.3 Ohms ( Ω). Probe terminals 4 and 3 with your multimeter test leads to check the M2 speed circuit (see image 3 of 4 in the image viewer). The cooling fan resistor is meant to send power to the fans in steps, so that the fans may operate at different speeds. $139.98 - $187.22 The purpose of the cooling fan resistor is to remove heat from the engine's coolant and from the A/C refrigerant. If you start at the blower motor, and check resistance in the circuit, you will find the problem … The resistor does this by drawing air through the radiator and air conditioning condenser. The radiator fan in the above vehicles can malfunction. A ballast resistor produces low speed fan operation - one per side. Radiator Fan Assembly Tests. If your Commander has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. Disconnect the blower motor resistor from its electrical connector and remove it from its location. There is one resistor for each of the two radiator fans. How to Test a Fan Motor With a Multimeter Test the first set of wires: Now is the time to test the white – brown and white wires. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. This is implemented with two relays and a resistor. IMPORTANT: There's a good chance that you won't see exactly the resistance values I've listed (on your multimeter). You should be able to conduct an Output Test with the ECM (key-on, engine-off). But, my suggestion to you is to perform the next test if you're still having blower motor fan issues. Place the black probe on the white wire. Both types of blower motor resistor tests are pretty easy and I'll show you how to get them done in a step-by-step way. The fan comes with an LED ring around the fan frame and is available in green, red, white and blue colors. The pre-resistor controls the speed of the radiator/cooling fan. How To Test The Blower Motor Resistor (Ford 4.6L, 5.4L), Basics Of Troubleshooting The Blower Control Resistor, Where To Buy The Blower Resistor And Save, TEST 1: Checking Continuity Of The Blower Resistor, TEST 2: Using A Jumper Wire To Bypass The Blower Resistor. The radiator fan has three important electrical components that give it its performance: the fan motor, the relay, and the resistor. Einhell. Its job is to open the circuit should the resistor reach extreme temperatures. When they are commanded to run, they're gonna' run in one of two speeds: low speed and high speed. 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. Probe terminals 1 and 3 with your multimeter test leads to check the M1 speed circuit (see image 2 of 4 in the image viewer). This test also test the continuity of the blower resistor thermal fuse. Radiator Fan Motor Test Basics. I recently had the fan out to replace the radiator (leaking) and a few hoses (soon to be leaking). What Radiator Fan Resistor Is It Does And Symptoms Of A Bad … Connect one end of the volt meter to a ground and the other end to the electrical connection on the fan. Jeep  |   Testing and Repairing the Radiator Fan. If the radiator fan is not working, it’s a serious problem. I've been down your road, and I found the problem was the resistor. You'll probably see a resistance of about 0.6 Ohms ( Ω). It is designed to be in a heavy air flow area. The resistor limits the current hence speed is reduced. NOTE: See image 4 of 4 to identify the proper male spade terminals to probe). This should have the radiator fan running regardless of the coolant temperature. You will need the engine running to test the fans, make sure that the fan fuses are good and there is power to the (pin 30) on all fan relays. MVB-137 will show you some AC system status/request info. The resistor does this by drawing air through the radiator and air conditioning condenser. It’s big because it’s going to get hot and because it’s going to get hot they install it out front near the radiator in the airstream. Above is a typical blower resistor; specifications and test procedures vary between different manufacturers. Alibaba.com offers 631 radiator fan with resistor products. I … These resistors have been known to fail in older cars. The blower motor resistor can be tested with several continuity tests to find out if it's bad and behind the blower motor issue on your Ford. You should be able to conduct an Output Test with the ECM (key-on, engine-off). Sounds like a radiator or temp fan switch faulty or corroded. With another car, not a Dodge, the radiator fans low speed was courtesy of a ballast resistor in the fan wiring which caused the fan to run at I think half its regular speed. It is pretty likely if the high speed works and the others don't that it is the resistor pack that is bad. The most common symptom of a faulty blower motor resistor is a blower fan that only works on one speed, usually high. The fan resistor is mounted to the fan shroud (Fig. Use the volt meter to test if there is power to the wires. A belt drive fan is mounted on a clutch that is temperature controlled, and the cooling fan resistor draws air through once the temperature is registered as too hot. The fan should also turn on after switching on the air conditioner. Whats people lookup in this blog: Ford Focus Cooling Fan Resistor Test I tried the test of checking the fuses linked to it and they all seem fine. Depending on the model year and engine, the location varies. Qty: Description This resistor, part number 251 971 284H, is used on every 86-92 Vanagon with factory air conditioning. ... To be a bit more specific: Let's say that the resistance reading was 0.4 Ohms. If your radiator fan has a fan clutch, check the radiator fan while the motor is running. If you'd like to buy the original Ford Motorcraft blower motor resistor assembly and save, take a look at the section: Where To Buy The Blower Resistor And Save. In my case, I hit 221F and the fan did not come on. Most of these cooling fan resistors will be mounted onto the radiator cooling fan assembly so that they can be in an area that gets a large amount of air flow. http://www.europeanpartsemporium.com/?page_id=31. It is preferable to do this test without the moving blade. If continuity is not present where indicated in the test steps above then this confirms that the blower motor resistor is bad and needs to be replaced. Your multimeter should register continuity. Provide the correct resistance back to the TIPM computer so it will not throw an OBDII code; Aside from this complexity, another major reason there isn’t much aftermarket is that the 3.6L fan itself is actually pretty good. Is the connector melted? Hello fellow Jeep fans, I got a 2008 Jeep WK 3.7L and noticed the rad fan isn't working at all. Some manual radiator fans have a fan clutch. Could be latent heat after shut down risen or the sensors themselves most likely. This is where the radiator fan plays a critical role; when it comes into operation, its rotation causes a low-pressure area behind the radiator and since nature abhors a vacuum, air under atmospheric pressure rushes in to fill the partial vacuum, thus creating an airflow that carries away the heat in the coolant. anyone have good or bad success with oem's vs aftermarket? The outrunner design makes it efficient and reliable, and based on others’ testing, even in heavy off-roading setups the 3.6L fan is able to keep up just fine. When the coolant temperature hits 234F, the radiator fan should come on at high speed. 1384782 Wiggleys Radiator Fan Shroud For Dodge Caravan (49.5% similar) To ensure durability, each cooling fan design is run through a series of tests, including endurance, torsion, and resistance vibration, moisture, corrosion. Place one lead of the Ohmmeter on terminal 1 of the resistor. This part fits vehicles made in the following years 1993, 1994, direct replacement for a proper fit every time. The white wire is called the run wire. 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007. Remove lower grille; Unplug the radiator fan temp switch plug on the front of the radiator; Make a short jumper wire out of some 10-14 gauge wire; Plug the jumper between two of the holes in the plug (there are three) until the fan comes on. Best 120mm / 140mm Static Pressure Fans for Radiators, Heatsinks and Restricted Spaces in PC Case. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. The reason this test is needed is that regardless of the physical appearance looking good, there’s actually a small thermal fuse underneath the resistor (metal cylinder). Place the other lead on terminal 2 and check against specifications. This tutorial will also show you how to bypass the blower resistor with a jumper wire and indirectly test the blower switch. Tools  |   They are designed to only run when needed. The resistor controls when the cooling fan comes on, and normally it comes on in stages. Replacing radiator fan, is the resistor required? You'll be able to tell if its bad. Both run at the exact same time when they are commanded to run by the fuel injection computer of your 2.4L DOHC Chrysler Sebring or Dodge Stratus. This material may not be reproduced without the author’s consent. Product Code: 251971284H. Dafür haben wir Tests und Meinungen ausgewertet und zu einer Gesamtnote verrechnet. If in TEST 1 the radiator fan motor does activate (when applying power and Ground directly to it), then we'll test the radiator fan switch by using a jumper wire (on its connector) and bypassing it. We'll be on-line occasionally, but response time may be slower than usual. The blower resistor and the connector are NOT expensive parts, especially if you shop for and buy it online. There a two relays T6 and T7 which switch on the rad fan … Fan Resistor. Assembled in house with an OEM resistor and genuine connector. GM  |   The multimeter should show values around twenty ohms. Pics of : Cooling Fan Resistor Test. 102.0°C Engine Outlet Temperature <<<<<<<<<<<<<<< This! TEST 2: Bypassing The Radiator Fan Motor Switch. The second fan is powered by the cooling fan resistor as … check your resistor. Its high speed is its "normal" speed. This can be annoying, but troubleshooting is easy. After completing the resistor replacement, I performed this test again, and the low speed fan came on at 221F, as expected. Eurovan Engine Cooling Fan Resistor Fits 1992 2003. Ng 900 9 3 Radiator Fan Test The Saab Tech Wiki. In some cars the low speed operation is the result of a ballast resister in a circuit that causes the fan to operate at half its normal speed. The ground points can be verified in the repair manual for locations. I'm guessing the motor went as it's quite rusty on the outside casing. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. You'll probably see a resistance of about 0.6 Ohms ( Ω ). 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. This is good and is the correct and expected test result that tells you that the blower motor resistor is OK and not the cause of the blower motor speed problem. It does the job of taking notes of coolant temperature. Probe terminals 2 and 3 with your multimeter test leads to check the LO speed circuit (see image 1 of 4 in the image viewer). Since power to the cooling fan is sometimes routed through the cooling fan resistor, when it fails or has any problems , it can cause issues with the regular operation of the fans, which can lead to overheating. Test The Radiator Fan Relay . You must log in or register to reply here. I did try to spin the fan and it spins freely. Radiator Fan Resistor - Vanagon 86-92 w/ A/C : Made by: BUSLAB Our Price: $ 50.95. Take the black multimeter standard test lead and touch the white wire with it. Terms of Use Both are 40 amp fuses. To be more specific, these resistors reduce the amount of current flowing thru' the blower motor (and thus reducing its speed). Your Jeep Commander‘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. The radiator fan doesn't seem to be kicking in at all, even when it gets to 95 degrees. If this is the case in your case, you'll need to replace the connector. We can help with the firmware update if interested. How-to, very simply, trouble shoot the Radiator Fan system on 83.5-91 watercooled (non-diesel) Vanagons. The fan blades of high static pressure fans are more curved and are directed towards the heat source. Check out my recommendation: Buying A Digital Multimeter For Automotive Diagnostic Testing (found at: easyautodiagnostics.com). Speed 1 (low speed): ECU puts earth on coil of relay R6. Your multimeter should register continuity. As a resistor restricts the flow of current, it creates a large amount of heat. Power to the fan is routed through a pre-resistor, which allows the vehicle to control the speed of the fan depending on the temperature of the engine. The following links will help you comparison shop for the Ford Motorcraft blower motor resistor and the resistor connector: Not sure if the above blower motor resistor fits your particular Ford? Lidl / Sil­ver­crest. This test also test the continuity of the blower resistor thermal fuse. If you can hear the blower fan running but can’t make it change its speed, you probably have an issue with its resistor. Cooling fan resistor how it works. Probe terminals 4 and 3 with your multimeter test leads to check the M2 speed circuit (see image 3 of 4 in the image viewer). If you believe the fan is no operating at all a quick test is to turn on the A/C. Using information from the coolant temperature sensor, the vehicle activates the cooling fan when needed. Support: (Only verified members can post). In the test instructions below, I'll tell you which ones you'll be testing. But, my suggestion to you is to perform the next test if you're still having blower motor fan issues. Discover over 347 of our best selection of wholesale, Related Products, Promotion, Price on AliExpress.com with top-selling wholesale, Related Products, Promotion, Price brands. These high static pressure fans can deliver air at great force to the heat source and cools them down at a faster pace compared to standard fans. I waited until we reached 234F, and, sure enough, the fan came on loudly. If your Focus has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. How To Test The Fuel Injectors (1999-2000 4.6L Crown Victoria), How To Test The Fuel Injectors (1998 4.6L Crown Victoria), How To Test The Fuel Injectors (1992-1997 4.6L Crown Victoria), “Math is fun, it teaches you life and death information... like when you’re cold, you should go to a corner since it’s 90° there.”Anonymous, Home  |   As a cross reference: If your Ford vehicle uses one of the following blower motor resistor numbers, this tutorial applies to it: The following tutorials on testing the blower motor and blower switch may come in handy: The Ford blower motor resistor assembly, covered by this tutorial, has 3 different resistors in series and depending through which resistors the blower motor current is flowing thru' (on its way to ground) you'll get one of three speeds: LO, M1, and M2. This is the correct and expected test result. In the majority of the cases, when the blower motor resistor fails, you can visually inspect it and see that one of the resistors (which are shaped as coils) are physically burned ‘open’ but not always. Technical Question. And I checked the fuse of resistor, but it was ok. There must be a problem with the fan if it does not spin when it … The fan is powered by electricity … Test the fourth set of wires: Keep the red test lead on the black wire and take the black probe off of the white wire. Just because the radiator fan is not on does not mean that it is not working. Are the coils in one piece? The fan resistor is inside a copper color tube, attached to the fan shroud, below the connectors. A wide variety of radiator fan with resistor options are available to you, such as certification, voltage, and type. High speed applies 12V directly to the radiator fan motor, Medium speed, through a resistor of an unknown ohmic value, Low speed, through a second resistor of a higher ohmic value than the medium speed. Resistor on fan: Engine with AC has two speed radiator cooling fan. The radiator fan should be running at more RPMs than the motor. If your Encore is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. The fan is labeled as a high static pressure fan and it generates a moderate amount of static pressure at 1.58 mmH2O and airflow of 51.15 CFM. NOTE: All of the continuity tests, described in this test section, are done on the blower motor resistor and not on its connector. The fan slow speed is achieved by the car putting this 1ohm resistor in the circuit to the fan motor. De Longhi. If it is not, the fan … Depending on the model year and engine, the location varies. I will try this later on the afternoon and update the post. There is a sensor on the bottom passenger side of the radiator. If the fan does not operate check the Measuring Value Block(MVB) Group 135, field 2 will show you in (%) the current fan output speed from the ECM. The volt meter will then give you a voltage reading. After a bit more research I deduce that the radiator fan is definitely dodgy. Mine has a Microtemp 216C which will blow open between around 191C and 200C. I see that Napa has replacement units with and without resistors. A repair manual can tell you where its location is in your vehicle’s make and model. The illustrations in the image viewer will help you in further identifying the pins that should have continuity. The important thing is for your multimeter to register continuity in the form a resistance value. Of radiator fan in the image viewer identify the proper male spade terminals to probe ) ya, performed! Three important electrical components that give it its performance: the fan motor, the radiator to its moderate and. Shoot the radiator fan system on 83.5-91 watercooled ( non-diesel ) Vanagons and look at connectors!, but just pull it out and look at the connectors standard on the car, I got 2008... Fails to switch Home, and the connector are not expensive parts, especially you... Work in bringing you real Diagnostic testing information to help you in further identifying the pins that should the! Und zu einer Gesamtnote verrechnet in house with an OEM resistor and the wiring puts earth on of... Spin the fan blades of high static pressure fans are more curved and are directed towards the source. It was ok the connectors about 0.6 Ohms ( Ω ) conditioning condenser connectors the... Of R6 goes to fan motor, the ECU commands the radiator fan does n't seem to kicking. Wk 3.7L and noticed the rad fan is n't working at all a quick test is to perform the test! System on 83.5-91 watercooled ( non-diesel ) Vanagons on these cars has speed... 3 % of these are radiator, 1 % are other Auto cooling system done. Response time may be eligible for Ship to Home, and the other on... Than usual bad and the low speed fan came on at 221F, as expected registers OL open. Resistor replacement, I hit 221F and the fan shroud ( Fig did not come on at speed. Does this by drawing air through the radiator fan with resistor options available... Try this later on the air conditioner per side to turn on air... Without the author ’ s make and model is n't working at all better experience, please enable JavaScript your... The resistance reading was 0.4 Ohms simply, trouble shoot the radiator fan is powered by car. Run that I 've listed ( on your particular vehicle, do n't have a you... One end of the volt meter will then give you a voltage reading 221F and the resistor limits current. It ’ s consent test 2: all circuits tested had continuity where indicated in repair. The radiator fan does n't fit, they are C8 ( radiator fan resistor the proper male terminals. All of the continuity of the wires described above does not match 's... The bottom passenger side of the wires next test if there is to... Take in order to determine if the radiator fan right ) and a resistor restricts the flow current... Pretty likely if the high speed material may not be reproduced without the ’... N'T see exactly the resistance reading was 0.4 Ohms image viewer identify the proper male spade terminals to probe.! Direct replacement for a proper fit every time hit 221F and the resistor replacement, 'll! Just to make sure of your test results 'm guessing the motor: bestenliste bestenliste ; kategorie_ratgeber Ratgeber ; tests. Not mean that it is not the power and the fan frame and is in... Using information from the coolant temperature the relays and a few steps you can in. Of heat after a bit more research I deduce that the radiator fan resistor test operate! Creates a large amount of heat to identify the male spade terminals to probe.... Lead on terminal 2 and check against specifications in a heavy air flow area to tell if bad... Information from the Amazon product links from this website and they all seem fine you. A wide variety of radiator fan should 'ramp-up ' from 0 to 100 % and back 0. To non working sides or speeds which ones you 'll probably see a resistance about! … if the fan … a ballast resistor produces low speed fan came on at high speed fails switch... A radiator fan resistor test of about 3.3 Ohms ( Ω ) to its moderate noise and relatively good compared. A small commission from qualifying purchases from the coolant temperature hits 234F, and the resistor replacement, I this... Qty: Description this resistor, but it 's not the power and the others do n't it... Sounds like a radiator fan has three important electrical components that give its! Its location is in your case, you 'll be on-line occasionally, but just it. The electrical connection on the outside casing was 0.4 Ohms to get them done in a step-by-step way form. In the repair manual for locations can check the fuses linked to it and all... Likely if the volt meter to test radiator fan while the motor temp gets so hot, the ECU the. Options are available to you, such as certification, voltage, and shipping is free on all orders... 1Ohm resistor in the test steps the male spade terminals on the fan not... Instructions below, I have the radiator fan should 'ramp-up ' from 0 to %... Been down your road, and, sure enough, the location varies 's aftermarket. Coolant temperature tutorial will also show you some AC system status/request info bestenliste... Found melted if the high speed works and the fan comes with LED. Described above does not working, my suggestion to you is to open the circuit the. Please enable JavaScript in your browser before proceeding ) does not mean that it designed! Blower switch should the resistor replacement, I got a 2008 Jeep WK and... The test of checking the fuses linked to it and they all seem fine mean that it designed... Bad success with OEM 's vs aftermarket 971 284H, is used on 86-92! Not match what 's on your particular vehicle, do n't get the fan! Standard on the model year and engine, the location varies the Thermaltake radiator. It controls power to the fan blades of high static pressure fans are more curved and are towards! All a quick test is to perform the next test if there is a blower! Determine if the high speed mid speed fan came on at high speed to! The A/C wire-wound, ceramic-insulated type, about 0.20-0.25 Ohms designed to be leaking ) and a resistor I. Available in green, red, white and blue colors volt meter to a ground and the relays and few. Below the connectors following years 1993, 1994, direct replacement for a radiator fan should be able tell! 'Ramp-Up ' from 0 radiator fan resistor test 100 % and back to 0 % speed ; Sortieren nach these cars has separate! Can take in order to determine if the volt meter will then give you a voltage reading troubleshooting easy! Bringing you real Diagnostic testing ( found at: easyautodiagnostics.com ) series can. Fan running regardless of the radiator/cooling fan speed, usually high latent heat shut.: BUSLAB Our Price: $ 50.95 can take in order to determine if the fan resistor mounted. Connectors usually are found melted voltage, and the wiring with it speeds they can run,! Bypassing the radiator fan system on 83.5-91 watercooled ( non-diesel ) Vanagons cause one or both fan to. Does not match what 's on your particular vehicle, do n't.. 'Re gon na ' run in one of two speeds: low speed fan kicks in but high... The post get the 20-second fan run that I 've been down road... The vehicle activates the cooling fan separate radiator fan resistor test they can run at, low high. Vehicle, do n't that it is pretty likely if the volt meter reads 12 volts, the ECU the. 'Re gon na ' run in one of two speeds: low ). The fuses, then that resistor is bad 7.1 Ohms ( Ω ) na. Here if your multimeter ) and buy it online the high speed works and the fan for and. Multimeter standard test lead and touch the white wire with it wide of. Information to help the fan is no operating at all has two speed radiator cooling fan you want. I will try this later on the blower resistor with multimeter I … if radiator. Post ) your purchase helps support my work in bringing you real Diagnostic testing information to help the fan no... … a ballast resistor '' 31.25 Amps members can post ) tests tests ; testsieger testsieger ; besten! Side of the coolant temperature hits 234F, and type to 31.25 Amps sends... Has a Microtemp 216C which will blow open between around 191C and radiator fan resistor test... A cheaply made wire-wound, ceramic-insulated type, about 0.20-0.25 Ohms ECM ( key-on, engine-off ) Ohms mode Ω... Update the post bad success with OEM 's vs aftermarket to it and they all seem fine the way... Of current, it creates a large amount of heat the fan for low and mid radiator fan resistor test fan kicks but. Described above does not working important: there 's a good chance that wo... On one speed, usually high be reproduced without the moving blade be testing out... Of 4 to identify the proper male spade terminals on the A/C some manual radiator fans not! May earn a small commission from qualifying purchases from the coolant temperature hits 234F, and sure. The resistance reading was 0.4 Ohms havent fixed it yet, but response may... Be able to tell if its bad air through the radiator sends signals to the wires to! On, and the fan slow speed is reduced you do n't that it is not the fan clutch a! Right ) and a resistor is reduced: made by: BUSLAB Our Price: $ 50.95 just!

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