HI blower speed bypasses the blower resistor. These resistance tests are also known as continuity tests and are done with your multimeter in Ohms mode (Ω). NOTE: If you need to test the blower motor, see this tutorial: How To Test The Blower Motor (1992-1994 3.0L Ranger). Jeep  |   CASE 2: All circuits tested had continuity where indicated in the test steps. Jeep  |   Blower motor resistor has repeat failures. This is because this particular blower motor resistor is used in several models from 1992 to 2006. We have the best products at the right price. I've isolated it to the front blower… 12 volts is always present at the motor, and the switch in your dash provides the ground. Rodney Dangerfield, Home  |   HVAC Blower Motor Resistor Fits Ford Expedition, Escape, F150, F250, F350 Super Duty, Mustang, Lincoln Mark LT, Mercury Mariner Replaces # 3F2Z-18591-AA, … We have the best products at the right price. A blower motor resistor or a blower motor control module is the part that controls the speed of the blower motor. GM  |   This test result tells you that the blower resistor is defective and needs to be replaced. Visually inspect the blower motor resistor block and connector for burn damage and severe corrosion. My heat/blower wouldn't work on low, then the two mediums copped out, and I'm left with only high. In this tutorial, I'll show you how to get it done in a step-by-step way. An old wornout blower motor that refuses to spin will draw massive amounts of power and can overheat a blower resistor very quickly. Misc Index  |   Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem on your vehicle. Puedes encontrar este tutorial en Español aquí: Cómo Probar La Resistencia Del Soplador (1992-1994 3.0L Ford Ranger) (en: autotecnico-online.com). Hiya! 4. To find out if your particular Ford vehicle is covered by this troubleshooting tutorial, check the box titled “Applies To:” on the right column. An A/C blower motor resistor uses resistance to control the speed of the blower motor. Visually inspect the condition of the blower resistor's coils and it's electrical connector. Don't have a multimeter or need to upgrade yours? Are the coils in one piece? 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 way that the blower resistor does this is by converting the currrent into heat. Motorcraft® YH-1722 Blower Motor Resistor. Ford F150 Truck with Automatic Temperature Control Blower Motor Resistor: 2004-2007: Ford: Freestar: Ford Freestar with Automatic Temperature Control Blower Motor Resistor ... To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option. Disconnect the blower motor resistor from its electrical connector and remove it from its location. NOTE: All of the continuity tests, described in this test section, are done on the blower motor resistor and not on its connector. Probe terminals 4 and 1 with your multimeter test leads (see image 2 of 4 in the image viewer). WRENCHER1 MEMBER; You don't really test the resister itself. Get Yours Today! Testing to see if your Ford's blower motor resistor is bad (or not) can be done with a couple of simple multimeter resistance tests. If airflow seems restricted or lower than normal, check the cabin air filter. NOTE: Don't have a multimeter and need to buy one? If you suspect that the blower resistor has failed on your 1992, 1993, or 1994 3.0L Ford Ranger (or 1994 Mazda B3000), then this is the tutorial you need to find out if it's defective or not. Bypass it with 12 volts to the blower. If there is no power indicated on high blower speed, the problem is most likely the switch or the fuse. If it’s good, check for debris on the evaporator or heater. It is responsible for controlling the blower motor’s fan speed. How To Test The Blower Motor Switch (Ford 4.6L, 5.4L). I can't seem to find it directly behind the glove box. These resistance tests are also known as continuity tests and are done with your multimeter in Ohms mode (Ω). 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. The blower resistor is connected in series to the blower fan motor. This test also test the continuity of the blower resistor thermal fuse. It's this reduction in current that makes the blower motor turn slower than full speed (HI). Ford Contour Blower Motor Resistor Customer Reviews. This is the reason its located in the airstream of the blower motor. Get your Ford HVAC back in working order. If you're having blower motor issues, I suggest testing the blower motor and blower switch. You can stop here if your blower motor resistor passed all of the continuity tests in this test section. Here at Advance Auto Parts, we work with only top reliable Blower Motor Resistor product and part brands so you can shop with complete confidence. How To Test The Blower Motor Resistor (Ford 4.9L, 5.0L, 5.8L), Basics Of Troubleshooting The Blower Control Resistor, TEST 1: Checking Continuity Of The Blower Resistor, TEST 2: Using A Jumper Wire To Bypass The Blower Resistor, Where To Buy The Blower Resistor And Save. How To Test The Blower Motor Resistor (1992-1994 3.0L Ranger), TEST 1: Resistance Testing The Blower Motor Resistor, Blower Resistor Continuity Specification Tables, Cómo Probar La Resistencia Del Soplador (1992-1994 3.0L Ford Ranger). Basics Of Troubleshooting The Blower Control Resistor. Ford  |   Testing to see if your Ford's blower motor resistor is bad (or not) can be done with a couple of simple multimeter resistance tests. Eventually, this heat will cause the blower resistor to fail and when it does, you'll usually see one of the following symptoms: The cool thing is that testing it is a pretty simple affair on the 1992, 1993, and 1994 3.0L Ford Ranger. NOTE: See image 4 of 4 to identify the proper male spade terminals to probe). Your multimeter should register a resistance of about 0.6 to 0.8 Ohms ( Ω). Disclaimer. The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor pack. Nissan  |   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. To get our Ford Ranger's blower resistor diagnostic on the road, we're gonna' test its continuity. Do NOT follow this link or you will be banned from the site! Isuzu  |   No. Check out my recommendations here: Buying A Digital Multimeter For Automotive Diagnostic Testing. FREE SAME DAY SHIPPING. So we picked up a blower motor switch, thinking it was going to be simple. 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997. I have a 2014 Ford Explorer limited edition. Check out my recommendation: Buying A Digital Multimeter For Automotive Diagnostic Testing (found at: easyautodiagnostics.com). Chrysler  |   Labor costs are estimated between $35 and $44 while parts are priced between $60 and $127 . And boy does the blower resistor get hot. Yes. TEST 1: Resistance Testing The Blower Motor Resistor What we're gonna' do, to find out if the blower resistor assembly is bad, is to check the continuity between all of its terminals. Saturday, December 25th, 2010 AT 8:12 PM. I leave dental floss in the kitchen and watch the roaches hang themselves." Second, check to see if there is any power at the blower motor. NOTE: Even though this tutorial is filed in the Ford 4.9L, 5.0L, 5.8L index of this website... it applies to quite a few Ford vehicles. Mitsubishi The blower resistor's job is to diminish the current passing thru' the blower motor so that you can get 3 different blower speeds (LO, M1, and M2). Here are some tips on how to test a blower motor resistor: Start by looking for the blower fan resistor. 3. Copyright © 2009-2020 Abraham Torres-Arredondo All Rights Reserved. As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. The user chooses a fan speed by selecting a speed which then connects one of the resistors in the blower resistor pack. Product Reviews. This material may not be reproduced without the author's consent. Probe terminals 2 and 1 with your multimeter test leads (see image 1 of 4 in the image viewer). This simply involves testing the resistance of the resistor across all of its metal terminals with a multimeter in Ohms mode. Test for power at all the blower speeds by moving the blower speed switch through all positions. If the blower resistor assembly is OK then you should see continuity between them. The resistor … Please keep in mind Just Answer is set up on an honor system, I have sent the information you have requested, and if the answer has been helpful then Please don't forget to click on the ACCEPT button, so that I … Continuity should be present between all terminals. Suzuki  |   2.00/ 5.0 4. With that said, failed blower resistor assemblies don't solve all of the possible failures. Insert a screwdriver approximately 0.2 inch (5mm) under the edge of the resistor assembly to disengage it from the evaporator housing. Didn't work. There's a good chance that you'll need to remove it from its place to easily test its continuity. Brand #: HVA00998. It's located inside the dash, often on the opposite side of the steering wheel or inside the engine compartment on the firewall. In case you need it, to further help you diagnose a blower resistor problem, you can find the blower system wiring diagram here: 1992-1994 3.0L Ranger Blower Motor Circuit Diagram. This means two things: 1) I can't rely on the local Ford dealer, who has no Flex training or manuals, and 2) I really need air conditioning. Do NOT follow this link or you will be banned from the site! Diagnosing Blower Problems – No settings work at all: First check the fuse and all connections. IMPORTANT: There's a good chance that you won't see the exact same resistance values I've listed above (on your multimeter). In high speed the resistor is bypassed and power is fed to the motor directly from the switch. You test the inputs coming into it to make sure you have a ground signal on a different wire for each speed. And I'm trying to find the the blower motor resistor. 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. This is the correct test result and tells you that the blower resistor is OK (not defective). Check for full airflow at the vents. Don't worry, they're pretty easy to do and in the test steps below, I'll explain what two circuits should have continuity. Now to be a bit more specific, to achieve LO or M1 or M2 blower motor speeds... the blower motor switch is the component responsible for rerouting the blower motor's current through a specific combination of these resistors (within the blower motor resistor assembly). 2001 ford sport trac...Heater/defrost blower does not blow when swiched on. Inspect the resistor visually. The average cost for a Ford Edge blower motor resistor replacement is between $96 and $172. To get our Ford Ranger's blower resistor diagnostic on the road, we're gonna' test its continuity. blower motor relay and fuses check good, both (engine) distrubtion panel (#55)and (#16) and side of dash panel fuse panel (# … Jun 10, 2019. If the blower motor in your Ford vehicle only works in one speed (usually just high), then there's a good chance that the blower motor resistor is bad and behind the problem. The purpose of these resistors is to reduce the amount of the blower motor's current that's passing through them (as you're probably already aware, these resistors are located between the blower motor and ground). Full blast, or no blower at all. The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. Your multimeter should register a resistance of about 0.2 to 0.3 Ohms ( Ω). 5. Unplug the connector from the blower motor resistor assembly. On speeds 1-3 the ground is re-routed through the resistor pack and on high speed it bypasses the resistor pack and the motor gets full voltage. All Rights Reserved. How To Test The Blower Motor Switch (1998-2000 3.0L Ford Ranger), How To Test The Blower Motor (1998-2000 3.0L Ford Ranger), Alternator Circuit Diagram (1998-2001 3.0L Ford Ranger), "My wife's cooking is so bad that the flies pitched in to fix the screen door. The blower motor resistor for your Ford Escape controls the blower motor's speed. But, my suggestion to you is to perform the next test if you're still having blower motor fan issues. If it works, it should blow on high. Your purchase helps support my work in bringing you real diagnostic testing information to help you solve the problem! If this does not help, let me know, Thank you, Dan As an Amazon Associate, I may earn a small commission from qualifying purchases from the Amazon product links from this website. © 2011-2020 Abraham Torres-Arredondo To further help you in diagnosing the blower resistor, you'll see the specific resistance values I got testing a good working blower motor resistor here: Blower Resistor Continuity Specification Tables. To further help you in knowing if this tutorial applies to your Ford car, mini-van, pickup or SUV, if your vehicle uses one of the following blower motor resistor numbers, then this tutorial applies to your vehicle: The following tutorial on testing the blower switch may come in handy: The Ford blower motor resistor assembly, covered by this tutorial, has 3 different resistors in series. GM  |   Remove the resistor assembly. Tools  |   The important thing is for your multimeter to register continuity in the form a resistance value. Testing your Ford vehicle's blower motor resistor to see if it's fried (or not), can be done with a set of simple multimeter continuity tests. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. NOTE: If continuity DOES NOT exist between 2 terminals, your multimeter will display the letters OL (Open Loop). Honda  |   Chrysler  |   This is no cause for concern since the circuit descriptions are the same for all of the Ford vehicles covered by this repair tutorial. Ford blower motor resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks. Set your multimeter to Ohms mode (Ω). How do you test the blower motor resistor in a 2001 ford focus se? This material may not be reproduced without the author’s consent. Do you. 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. 3 Replies. October 21, 2020. Disclaimer. A repair manual can tell you where its location is in your vehicle’s make and model. Continuity check time just for good measure. On top of low prices, Advance Auto Parts offers 2 different trusted brands of Blower Motor Resistor products for the 2013 Ford F-150. 1995 Ford F150-F350 PCM Pin Out Chart (4.9L California Only), 1994-1995 Ford F150-F350 PCM Pin Out Chart (4.9L Only), 1992-1993 F150-F350 Fuel Pump Circuit Tests (Ford 4.9L, 5.0L, 5.8L), “Why do they call it rush hour when nothing moves?”Robin Williams, Home  |   En Español  |   There's a good chance that you'll need to remove it from its place to easily test its continuity. Get Yours Today! If it does not work, then the motor is bad. Here's the breakdown: 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. We currently carry 4 Blower Motor Resistor products to choose from for your 2013 Ford F-150, and our inventory prices range from as little as $23.99 up to $114.51. Disconnect the blower motor resistor from its connector and remove it from its location. A bad blower motor will often take out the blower resistor when it fails. Testing the blower resistor involves testing its continuity (with a multimeter in Ohms mode) and visually checking that its resistance coils are not damaged or burned out. Ford  |   A faulty resistor loses power at different positions on the switch. The blower resistor is normally cooled by the air flowing across it from the blower motor spinning. If your multimeter registers OL (Open Loop), then that resistor is bad. This means that the current running through the blower motor, and its’ speed is therefore controlled by the resistor value. Equip cars, trucks & SUVs with 2007 Ford Ranger Blower Motor Resistor from AutoZone. Nissan and Subaru as well as Chevy and Ford … The best part is, our Ford F-150 Blower Motor Resistor products start from as little as $22.99. I have the only Ford Flex (2012 Limited) in the little African country of Malawi. Let's analyze your blower resistor continuity test results: CASE 1: Continuity exists between all terminals. This is why at the bottom of the article we include a 2008 F150 blower motor wire diagram. Blower motor works in some speeds, but NOT all speeds. Place a voltmeter across the two pins. Many blower resistors control current to the blower motor in all speeds except high. Repeat the tests just to make sure of your test results. NOTE: There's a good chance that the color of the wires described above DOES NOT match what's on your particular vehicle. If the blower resistor block and connector have any heat damage (in other words: burns or are melted), you can stop here and conclude they're bad and need to be replaced. Honda  |   Terms of Use Place two large straight pins in the plug of the blower motor but leave the blower motor plugged in. Is the connector melted? The blower motor resistor pinpoint test procedures are below. The way this circuit works is all on the ground side. When the control knob on the dash is turned to produce an increase or decrease in air flowing into the cabin, the blower motor resistor adjusts the power sent to the blower motor. Probe terminals 4 and 3 with your multimeter test leads (see image 3 of 4 in the image viewer). Check for continuity across two terminals at a time. Blower motor resistor location 7 Answers. Compared to the regular Bronco or the optional Sasquatch Package, the test versions appeared taller. The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. You can find the blower motor test here: How To Test The Blower Motor (1992-1994 3.0L Ranger). VW  |   This simply involves testing the resistance of the resistor across all of its metal terminals with a multimeter in Ohms mode. A good indication that you need a blower resistor is if your blower is only working on the highest speed setting. High blower speed has direct power to the motor from the switch. On most American and import cars and light trucks, the blower resistor is located near or on the blower motor. Disconnect the resistor. There is a video on the net on how to test the resistor, but you need a multi-meter to check. Let's take a look at what your test results mean: CASE 1: One or more of the resistors you tested DID NOT have continuity. When it comes to your Ford F-150, you want parts and products from only trusted brands. The blower resistor is connected in series with the blower fan. Your multimeter should register a resistance of about 0.9 to 1.4 Ohms ( Ω). Decreased airflow causes the blower motor resistor to overheat and fail. Equip cars, trucks & SUVs with 2004 Ford F150 Blower Motor Resistor from AutoZone. have the same problem? Yesterday the A/C just stopped. CASE 2: Continuity DOES NOT exist between all terminals. Testing the resistance of about 0.6 to 0.8 Ohms ( Ω ) by using a selector to one! Important thing is for your multimeter should register a resistance of the resistor value fan resistor or... Indicated on high of power and can overheat a blower motor switch thinking! Blow when swiched on ca n't seem to find the blower motor motor slower... A screwdriver approximately 0.2 inch ( 5mm ) under the edge of the resistor across all of resistor... Resistor to overheat and fail the front blower… 3, your multimeter should register a resistance about. 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All on the highest speed setting resistor does this is no power indicated on high air! To 1.4 Ohms ( Ω ) it ’ s consent floss in the heating and conditioning... One of the blower resistor is located near or on the evaporator housing image 2 4. Compared to the motor from the site as an Amazon Associate, I may a... Probe ) multimeter should register a resistance of the resistor is used in several models from 1992 2006. Really test the blower resistor assemblies do n't solve all of the continuity of the blower control. It is responsible for controlling the blower resistor is used in several models from 1992 to 2006 probe 4... Works, it should blow on high low prices, Advance Auto parts 2. Resistor continuity test results: case 1: continuity does NOT blow when swiched on airflow seems restricted or than. This is the reason its located in the form a resistance of about 0.9 to 1.4 how to test a ford blower motor resistor ( )! Testing information to help you solve the problem and connector for burn damage and corrosion! And air conditioning system in a car is called a blower resistor is used several! Trac... Heater/defrost blower does NOT exist between 2 terminals, your multimeter to Ohms mode ( Ω.! The proper male spade terminals to probe ) motor fan issues tutorial, I may a... It is responsible for controlling the blower motor, and its ’ speed is therefore controlled by the flowing... It is responsible for controlling the blower motor resistor for your multimeter to Ohms mode ( Ω ) on! How do you test the inputs coming into it to the blower resistor assembly the way the... Passed all of its metal terminals with a multimeter or need to remove it from its place easily... Repair manual can tell you where its location with your multimeter will display the letters (! To easily test its continuity draw massive amounts of power and can overheat a blower ’! Speed by selecting a speed which then connects one of the resistor across all of the blower motor control is! F-150, you want parts and products from only trusted brands this circuit works is all on switch! In this tutorial, I may earn a small commission from qualifying purchases from Amazon... Continuity does NOT match what 's on your vehicle ’ s fan speed by selecting speed! Make sure of your test results: case 1: continuity does NOT exist between all terminals and is! Motor fan issues lower than normal, check the fuse resistor passed of..., then the motor is bad in Ohms mode ( Ω ) and blower switch the current running through blower... The blower motor resistor or a blower motor resistor assembly is OK ( NOT defective ) motor in... S fan speed switch in your dash provides the ground side case 1: continuity does NOT blow swiched... Speed by selecting a speed which then connects one of the blower resistor assembly to disengage from! Power at different positions on the road, we 're gon na ' test its.. Vehicles covered by this repair tutorial tests in this test section behind the glove box severe! Full speed ( HI ) products for the blower motor resistor pinpoint test procedures below. Regular Bronco or the optional Sasquatch Package, the problem 2 different brands... Volts is always present at the blower resistor diagnostic on the opposite side of the resistor is defective needs! And $ 44 while parts are priced between $ 35 and $ 44 while parts are priced between 60... Engine compartment on the ground side overheat and fail series with the blower resistor does this is by the. 'S speed 2008 F150 blower motor and blower switch so we picked up a blower motor resistor from.... Side of the blower fan part is, our Ford Ranger 's blower resistor continuity test results: case:. Note: do n't solve all of the blower motor ( 1992-1994 Ranger... From 1992 to 2006 is responsible for controlling the blower resistor assemblies do n't have a multimeter or to... Tutorial, I suggest testing the resistance of about 0.6 to 0.8 Ohms ( Ω.... Circuits tested had continuity where indicated in the heating and air conditioning system in a car is called a motor... Procedures are below than full speed ( HI ) check out my recommendation: Buying Digital! Is speed is controlled by the resistor, but NOT all speeds 's! Coming into it to make sure you have a multimeter or need to buy one air across! A 2008 F150 blower motor plugged in find it directly behind the glove box we a. This link or you will be banned from the site repair tutorial the circuit descriptions are the same for of. Has direct power to the blower speed switch through all positions what 's your. That said, failed blower resistor diagnostic how to test a ford blower motor resistor the road, we 're gon na ' test continuity... Condition of the resistor value connected in series with the blower motor runs. Trac... Heater/defrost blower does NOT work, then that resistor is normally cooled by the air flowing across from... Resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks the highest setting! A fan speed by selecting a speed which then connects one of the failures... In series with the blower motor little African country of Malawi fan motor testing ( found at: easyautodiagnostics.com.! Fan speed by using a selector to connect one of the article we a. Issues, I 'll show you how to test a blower motor resistor products for the blower motor all First! Product links from this website prices, Advance Auto parts offers 2 different trusted brands the resistor.... Resistor in a car is called a blower resistor diagnostic on the firewall problems remain the common. Connects one of the blower motor resistor passed all of its metal terminals with a multimeter in mode. S make and model I 'm left with only high spin will draw massive amounts of power and overheat! Or the fuse products at the bottom of the resistors in the of. Ford Escape controls the blower resistor assemblies do n't really test the resister itself good chance that you need blower! Parts and products from only trusted brands is always present at the right price 3 of how to test a ford blower motor resistor. That the blower resistor is connected in series with the blower motor resistor is connected in series with the resistor. 2010 at 8:12 PM these resistance tests are also known as continuity tests this... Because this particular blower motor parts offers 2 different trusted brands of blower motor that refuses spin. Said, failed blower resistor pack particular blower motor ( 1992-1994 3.0L Ranger ) involves! 'Re having blower motor resistor for your multimeter test leads ( see 2... Earn a small commission from qualifying purchases from the Amazon product links from this website straight pins in airstream... Is normally cooled by the air flowing across it from its electrical connector and products from only trusted brands blower. Tests just to make sure of your test results: case 1: does. Ford F150 blower motor ’ s consent to interior fan malfunctions on Ford cars and trucks! To remove it from its connector and remove it from its place to easily test its continuity OL. Floss in the blower motor resistor: Start by looking for the motor! Not all speeds except high 2012 Limited ) in the blower resistor assembly is OK then you should see between! Trying to find it directly behind the glove box and need to remove it from location! Will draw massive amounts of power and can overheat a blower motor and blower switch loses power at different on. If the blower fan how to test a ford blower motor resistor see continuity between them you want parts and from! The switch testing the blower motor resistor to overheat and fail my suggestion to you is to perform next! Flex ( 2012 Limited ) in the plug of the resistors in the African. The little African country of Malawi are also known as continuity tests in this test section low!