How to Easily Test an ECM Motor Using the SUPCO TradeFox ECMPRO Universal Tester Sealed Unit Parts Co. 2.08K subscribers Subscribe 8.2K views 2 years ago Test any type of Electronically. So, lets get started. Contact Us: (844) 289-0033 | After Hours Emergency Contact: (800) 217-4698 . First, turn the power off. If the motor works, the belt will move. Wait for programmed delays to time out. For this test you'll need an amp clamp. It is solely up to the technician viewing this to determine if he/she has the proper safety training and experience needed to work on HVACR systems and components examined in this video. With all of these ways, you can test your car ECM computer. ECM 2.3 Troubleshooting: What is the motor doing or not doing? Look on the outside of the motor for other potential problems, like holes or smoke points. GE offers a few basic checks that technicians should perform before troubleshooting the ECM motor. Here are the four steps on how you can test ECU with a multimeter: Step 1: Setup MultimeterStep 2: Visual InspectionStep 3: Start Testing With A MultimeterStep 4: Record The Readingif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'caralso_com-large-leaderboard-2','ezslot_5',149,'0','0'])};__ez_fad_position('div-gpt-ad-caralso_com-large-leaderboard-2-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'caralso_com-large-leaderboard-2','ezslot_6',149,'0','1'])};__ez_fad_position('div-gpt-ad-caralso_com-large-leaderboard-2-0_1');.large-leaderboard-2-multi-149{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}. Try and find it on the internet or ask the manufacturer. Remove the filter and check that all of the dampers, registers, and grills are open and free-flowing. If this is the only symptom identified, there is no need to replace the motor. Search Millions of Parts from Thousands of Suppliers. You need to disconnect the wires attached to the motor to remove it from the appliance. If you remember, in the previous two tests, we set the multimeters to voltage mode. If the motor fails Test 03, you might have to replace the motor. You can even test ECU with a multimeter which is not so hard. ECU computers collect data from several sensors, and with data, ECU regulates the cars operating system.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'caralso_com-medrectangle-4','ezslot_1',103,'0','0'])};__ez_fad_position('div-gpt-ad-caralso_com-medrectangle-4-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'caralso_com-medrectangle-4','ezslot_2',103,'0','1'])};__ez_fad_position('div-gpt-ad-caralso_com-medrectangle-4-0_1');.medrectangle-4-multi-103{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}, A multimeter is a tool that is used to measure electrical values such as principally voltage (volts), current (amps) and resistance (ohms), and more. For the example above, we used a 100V motor. A failing engine control module is not something that should be taken lightly, your vehicle will perform on reduced power, your plug wires could be causing a short to the ECM so be sure to check them! M0qV5~:>+R^+[P_t|2MqA5_xv43Q'_T&t(BnPa~=>h?>] If so, the following guide is for you. We and our partners use cookies to Store and/or access information on a device. Repairing an ECM depends on the issues with your ECM. Personally, I always test my cars ECU computer using this OBD II scanner because its an easy and precise method to do it. Onboard Diagnostic (OBD) is an engine code scanner that can access vehicle data. After 1996 automobile manufacturers began using Onboard Diagnostics II (OBD2), a diagnostics system in the vehicle. The multimeter is also known as a volt-ohm meter. If you follow these steps correctly, then you should get the voltage of the power supply. Connect the black multimeter probe to the negative battery terminal and the red probe to the positive battery terminal. On 240VAC systems, the jumper should be removed. Although installation of the part itself is a straight-forward process, testing the vehicle after installation to ensure everything is running properly can be time-consuming. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'caralso_com-box-3','ezslot_8',138,'0','0'])};__ez_fad_position('div-gpt-ad-caralso_com-box-3-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,50],'caralso_com-box-3','ezslot_9',138,'0','1'])};__ez_fad_position('div-gpt-ad-caralso_com-box-3-0_1');.box-3-multi-138{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:50px;padding:0;text-align:center!important}To test ECU with a multimeter, you have to have a compatible and working multimeter. *****TECHS**** Find your nearest SUPCO distributor here: http://bit.ly/2ZB0cd8Learn more: https://www.supco.com/web/supco_live/products/ECMPRO.htmlThis product update video contains general technical information provided for educational use only. You should not avoid maintaining the safety procedure to test the engine control unit, and you need to read the caution carefully. Since there is almost always a factor that contributes to ECM failure, addressing the underlying cause is a priority. So, lets know the caution to test ECU with a multimeter. Setting up your meter for a parasitic draw test. " 3XZV\BU](x_li9C\IcM>4)hq%|\66d@[cc{95W j4/4Ih 7lmuakk$5:'oz3Fl_{@'ri@X0plsl1|F4'9k;YlJn7B]KOl3iK"c>c"(t=wU6qb>k\)\a2W GKG+~I$}5m:\gM+^b)v}D~24`}-EJR,zEj+oH=Hz/,JW! ECM Motor Testing . And after you put the replacement unit in your vehicle and communicate, that is a certain indication that tells your cars unit that it needs to be replaced. Connector pin outs. Just wondering how you guys are testing ecm blower motors in furnaces. The ability to move air rapidly and efficiently in HVAC systems is essential to achieving a cost-efficient comfort system. Now you need to see if the output units are working properly or not.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[250,250],'caralso_com-leader-4','ezslot_15',125,'0','0'])};__ez_fad_position('div-gpt-ad-caralso_com-leader-4-0'); Ensure the Injector, the Starter, and the Spark Plugs get the right signal from the ECM computer. Bad ECMs may also display similar symptoms as other faulty components making it difficult to determine where the symptoms originate. Tech Tip 7: When checking any plug connector, the meter leads are most likely larger than the terminals or socket. If there is a problem with the engine computer then it will not process the data correctly and it will affect the way the outputs function. We come out with new videos every few days from my job sites, service calls, and the training shop! You can test your car ECM using an OBD-II scanner and a multimeter (Volt Ohm Meter). You can now start the engine and let it idle. Tech Tip 5: If a check of the control module indicates replacement is required, then also check the motor module. ECM control modules are factory programmed for specific manufacturer applications. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media. Afterward, we can check the motors condition according to the two values. On older vehicles, typically models 1995 and older, switching your ECM for another unit is a sufficient mode of testing. <> For Step 2, a simple swap can be done. You better remember An ECM is one of the essential components to run the car. Observe the voltage reading on the multimeter. If the motor runs the problem is in the low voltage thermostat wire. ECM Motor Testing. % If this is the case, rev the motor up and down and observe the reading on . According to GE, an innovator in ECM technology, the wide range of the ECM motor, high efficiency, and programmability gives it a virtually unlimited range of performance characteristics. Tech Tip 2: When it's necessary to disconnect the power from the HVAC system, it's always a good practice to verify that voltage has been disconnected, by using a voltmeter. Here are five useful ways to test ECM computer: As a car owner, you should know what an OBD code scanner is. All rights reserved. In the ohmmeter mode, connect the meter to the plug and monitor the resistance as you wiggle the cord where it enters the enclosure. First thing you need to do when you are testing an ECU with a multimeter that properly set up the multimeter. When you test your car ECM computer or car computer, you also need to understand the engine computer failure indication. If you are testing the ECM computer and found the main culprit, then its better to go to an auto repair shop or a professional to take proper steps about your car computer. An engine control unit (ECU), also known as the engine control module (ECM). ), 3 Ways To Recondition A Car Battery That Wont Hold Charge. Repair costs and labor at a dealership could be anywhere from $1,000 to $2,000 depending on the vehicle. The second thing to do is start the smell test on your car computer; if your ECU computer smells more like burnt plastic, that means something is wrong, or its not alright. In addition to this, certain vehicles contain engine control modules that are very hard to find due to limited production which will also increase the price if a replacement is required. PLxnHR5_D2ojyDrxCT9MIttGW4wxOZ3nRefrigerants, Fuel Gases, Electricity, and other hazards are present when working on HVACR systems. So you can rely on my recommendation. Getting your unit reprogrammed costs significantly less than having your unit replaced or repair costs so knowing when a replacement is necessary is important when looking to cut costs. If there is no resistance or the resistance is uneven, the motor is likely faulty. First, remove the additional components such as capacitors and extension cables from the motors circuit. www.ecmweb.com is using a security service for protection against online attacks. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Step 3: While rotating the shaft, if you can hear abnormal friction or a sound, it is a signal for misalignment or damage. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); What Are Some Examples of Motherboard Diagnostic Tools / Software / Utilities, 10 Proven Things To Put In Gas Tank To Ruin Car Engine, Top 10 Dead Car Battery Tricks Help You To Start A Dead Car, How To Jump Start A Dead Battery Without Another Car (Fast), Causes Manual and Automatic Transmission Will Not Engage in Any Gear, 8 Things That Can Drain A Car Battery When The Car Is Off, Car Battery Dead Will It Recharge By Itself? Turn the ignition key to the on position. Make sure that there is no call for "continuous fan" on the G terminal. How do you test a blower motor with a multimeter? There is an implausible signal" Step 2: Then, turn the shaft clockwise and counterclockwise. This is the process for Circuit Tester A. Particularly, OBD-I where Engine Computer does not require Programming. Yvc,Nl{nNibb)4AZ:1H;. ]^g^uRn~G. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules. I show you where the test voltage goes and how to. Once more, this will differ based on the brand, model, and features of your vehicle. If your car engine computer needs to be repaired instead of replaced then that will also add to the amount of labor required. If any of these is present, clean them out. Loose or broken low-voltage wires can potentially cause intermittent problems. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. (The one-min interval is an industry practice that allows everyone to take the reading at the same time. A new ECU needs to be programmed into your vehicle because the ECU computer needs to be programmed for your cars model and make. Also, using a multimeter is very easy and simple. These are the components that will need to be checked to test a car computer. ECU is an electronic device that controls vehicles electrical features to ensure optimal engine performance. Technician-Proven:Our technician focused line of innovative tools are one-of-a-kind,\r resourceful solutions that make life in the HVACR field easier.\r Our unique tools have been designed by real trade technicians whove\r used their ingenuity and resourcefulness to solve common on-the-job\r problems. All rights reserved. B162A15 The Left low Beam has had a malfunction. In addition to being time-consuming, replacing your ECM can be costly so it is important to be sure your vehicles problem truly lies within the ECM. Tech Tip 3: A True-RMS meter isn't needed to check high-or low-voltage to the motor. Replacing an Engine Control Module (ECM) is simple, and you dont need to know too much about it. This also helps you avoid any difficult issues around the engine control unit computer. In this HVACR Video, we go over the Troubleshooting of the ECM 3.0 Variable Speed Blower Motor and Testing with and without the TecMate Pro. Dealership grade equipment is also used to program these units so there is no reduction in engine performance. An example of data being processed may be a unique identifier stored in a cookie. The 3 wire speed sensor is externally powered, so you will need a power source of some form. B219400 THE POWER SUPPLY OF CIRCUIT 30 IS <7.5 V The aim is to check the windings for open or shorts circuit. This is mainly due to the fact that your engine computer is responsible for so many different areas within the engine compartment, many of which become affected when the engine computer begins malfunctioning. Simply stated, if all inputs and outputs are in working order then you know the problem is a result of the way the computer itself is processing the data. In any auto shop or many retail shops, you will get a multimeter easily. If this doesn't correct the problem, then check the external static pressure. You also need to make sure that the circuit board is not fried, most ECU repairs shop charges a lot for their services while at Flagship One Inc, We guaranteed you the cheapest of prices, be sure to call us for a quote. The other way to test the motor is to lift one end of the motor assembly, put it on a surface with some vibration, and then move the belt. 3 Use a multimeter or an ohmmeter to test the voltage of the electric motor. Plug the red test lead into the amperage or "A" jack. First, you have to test the fuse and relay with your multimeter. So, you never know when you may have to test your motor. While other components may normally display clear-cut symptoms when faulty, symptoms within your engine computer may not be as obvious. ********************************************** SUPCO TradeFox - Technician Invented. I reset and test my ECM after every new major install and so should you. When executing a continuity test, theres no need for power. After a certain amount of years companies may stop manufacturing new control modules resulting in a limited supply of those modules leading to used vehicles being used to facilitate an ECM replacement. Place the amp clamp around the positive battery cable with the arrow on the amp clamp facing towards the starter. Electrical engineering is my passion, and Ive been in the industry for over 20 years. endobj Most connectors are also keyed. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Here are the four steps on how you can test ECU with a multimeter: Step 1: Setup Multimeter Step 2: Visual Inspection Step 3: Start Testing With A Multimeter Step 4: Record The Reading Step 1: Setup Multimeter First thing you need to do when you are testing an ECU with a multimeter that properly set up the multimeter. The process for testing an engine computer is not always as straight-forward as testing other modules within your vehicle and oftentimes may be difficult and time-consuming. With those codes, you will be able to diagnose the ECM properly. Diesel vehicles like Ford F250s and Dodge 2500s are among these vehicles that have expensive engine computers. But, when it comes to other motors, you will have to find out the designed values according to the model. Visual Inspection of the Control Module ECM When inspecting your control modules on your vehicle it is important to be conscious of any physical defects you may come across such as frayed wires or corrosion without the need to visit an auto repair shop. Onboard Diagnostic (OBD or OBD II) scanner manufacturers are constantly updating OBD II scanners for better performance. Hello, I'm Sam. What's a Realistic Conversion Rate for Service Agreement Sales? Now, connect the remaining two black probes of the C and D to the end of the extension cable. Tech Tip 3: A True-RMS meter isn't needed to . No matter how you test the engine control module, finding the right issues in your car is the main job.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[468,60],'caralso_com-netboard-1','ezslot_23',131,'0','0'])};__ez_fad_position('div-gpt-ad-caralso_com-netboard-1-0'); So, if you dont have proper knowledge about testing ECM computer, you should learn from a professional. More about us. Its almost always cheaper to go to your local junkyard or used parts store rather than purchase the part directly from the dealership. Tech Tip 1: Don't automatically assume the ECM motor has failed. Sometimes, these readings can be smaller than 170 ohms like when there is an internal short circuit, the readings can be smaller than 170 ohms. ECM 2.3 has a 16-pin control wiring harness running from the board to the motor. There has to be a better way. I show you where the test voltage goes and how to check if the Fan Motor is good or bad. If the motor is operating at 240VAC with the jumper in place, the motor will be permanently damaged. Its important to remember that this test will only work on vehicles with computers that dont require programming which would rule out all newer model vehicles. In input process elimination, The battery has a major role. Move the switch from side to side and, with a trigger switch taped so it remains on, press on the brushes and turn the commutator by hand. Thank you. You might have to test for these kinds of issues too. If you see ECM computers PINs are good and intact. Step 1 - Check the Power Supply Voltage with Circuit Tester A Just like in the diagram shown above, first, connect the red probe of the multimeter to the red wire; connect the black probe to the black wire. Although labor is the bulk of the expense when replacing your engine control module at a dealership or mechanic, it is possible to cut costs on the actual part itself. Module cost from these online stores are as little as $100.00 and even the rarest modules like cummins diesel control modules are sold at a fraction of the price when compared to the dealership. Confirm there are no limits, rollouts, or safeties tripped. Step 4 - Check starter motor current draw. The first step in testing your ECU with a multimeter is to get the multimeter ready for the test. U015500 Communication with the instrument cluster has a malfunction For every version of ECM computer resetting and testing processes are the same. Afterward, compare the two values. The process for testing a car computer is not always as straight-forward as testing other modules within your vehicle and oftentimes may be difficult and time-consuming. If it's higher than the manufacturer's recommendations, then correct the airflow restriction.If the motor does not shut off at the end of the cycle, check the delay times and wait for delays to time out. Connect both of the black probes to the black wire. Please Tell Us How We Can Improve This Article. And both of the tools you as a car owner should have in your vehicle. This is followed up by ensuring that you put your multimeter on frequency mode. When it comes to determining if your ECM is faulty, the goal is to make sure that there is an issue within the computer itself- that there is an issue with how the ECM is processing the data and not an issue with the sensors sending the data or an issue with the actuators receiving the data. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. U050500 Implausible Data were received from control unit right front door, FSCU Control unit fuel pump Thats why you should take the time to test the ECM computer by process of elimination. Joined Jun 7, 2009. Continue with Recommended Cookies, Thinking of testing an ECU with multimeter? The readings of the multimeters should be 170 ohms, given that is if, we use a 100V motor. In most cases, the units are sent completely plug and play so that your vehicle will even start upon installation. In this case, you might have to replace the motor. Privacy Policy. The following process of testing ECU with a multimeter is one way you can run a test. An OBD scanner is a device that can read your car data and memory and diagnose the error. (Really? Turn on the multimeter and set it to read voltage. You will be redirected once the validation is complete. Firing orders. An example of data being processed may be a unique identifier stored in a cookie. Tech Tip 4: If you must replace the 2.0, 2.3, or 2.5 control module, then be sure to use a direct replacement from the manufacturer. Set the meter function to the amps AC or DC setting as appropriate. Correct any voltage issues before proceeding. In this HVACR Video, we go over the Troubleshooting of the ECM 3.0 Variable Speed Blower Motor and Testing with and without the TecMate Pro. Once you have determined the codes you want to use process of elimination to deduce whether the computer is at fault. 4). stream Here are five useful ways to test ECM computer: OBD or OBD II code scanner Visual Inspection Car Battery Check A Swap Process of Elimination 1. You should first take out the ECM to make sure the pins are in an upright position and check inside the plug and casing to make sure there is no corrosion for all wire connection . Oftentimes, a faulty ECM can be a result of a burnt circuit board due to poor wiring or other electrical mishaps. If you use a 100 VAC motor, you will get 100V reading on the multimeter. If your amp clamp has a max recording feature select it. But if you want to test your car ECU computer, you have to have some specialized knowledge and experience of testing an ECM computer.
Rosalind Russell Jane Russell Related,
Wycombe Abbey Feeder Schools,
Articles H
how to test ecm motor with multimeter