Ecm Car Problem
Members of the CarToq community had complained about braking issues in the new Swift, saying that the brake pedal tended to become hard and the car wouldn’t stop at extremely slow speeds, when. Car is 93 Honda Accord. To accomplish this the ECU increases or decreases fuel delivery by increasing or decreasing the time that the injectors are open. When the ECM has any issues, it can cause all sorts of problems with the vehicle, and in some cases even render it undrivable. 8 16V: engine control unit failure ECU failure is a known issue with these models and is becoming increasingly common with older cars. They said oil was 1. The next day repair shop said you need to get Toyota to a dealership. Is this common and about how much. If one of the modules cannot communicate with the ECU, that module will set a diagnostic trouble code and turn on the check engine light. Engine Control Unit. The ECM power relay is the relay responsible for sending power to the ECM. It does not have internal paths for the ECU's, but you can follow the links to get pin-outs, locations and wire colors throughout (including for harness plugs). We specialise in the ECU testing, ECU repair, decoding and supply of exchange Engine Control Units. In this weeks episode of Tech Tips we will be explaining how to set up the Auxiliary injector map on our LT-16c and LT-32c ECU’s. Finally, after months of the problem being reported, Maruti Suzuki has finally come out with a solution. ECU PROGRAMMER will reprogramming cars ECU chip data, CAR ECU PROGRAMMER will optimize your car for better performance, MPPS chip tuning, Xprog-M, KWP2000+, Galletto 1260, BDM100 ECU programmer, Kess V2,Ktag etc. Volvo has kept software under wraps for a long time, but has finally made it public. My Auto Solutions remanufactures ECU, ECM, PCM, and FICM units for customers throughout the metro Atlanta area. My car was completely disabled. Problems with any of these components can cause problems with the vehicle’s operation. If that light goes out, the car is immobilsed, at least by the starter not cranking the engine if you try to start it. Tier 4 Final. Recall, investigation, and TSB data is from NHTSA. One question, if I tried to start the vehicle after replaced ECM with the old key, will it mess uo the new computer? Also, I lost my keys a cpl years back and no longer have a key fob. The ECU stores diagnostic trouble codes when it senses a malfunction so a mechanic can fix it later. It’s a good little car, but lately its bellyachings have sent me out to the driveway to. Car had had no problems starting or running prior to this. I purchased a used ECM with the exact matching numbers and installed it in my car only to find out that it will not work because the key does not match the ECM. Seems like the ECU is the problem!. The ECU "learns" about your engine as you drive the car. Call with your part #s 800 241 6689 We sell and service many ECMs, ECUs for Toyota vehicles. Thanks for A2A. Let's take a look at how to clear that pesky "check engine" light, so you don't panic when driving down the highway. Unless you're still driving a decades-old model without digital components, your auto depends on a piece of computer hardware called the Engine Control Module, or ECM, to work correctly. I noticed that when I reset my car's ECU or PCM the car starts as if there is no problem and keeps on working. We run, as a second car, an elderly Volvo 850 estate and apart from being quite old (1996) she still runs fine and is quite adequate for. Viezu has been driving for perfection in the science of car tuning and REMAP SOFTWARE without compromise for many years. Car ECU Flash Reprogramming & Why Reprogram. ECU Part Numbers. Hi, I mounted the ECU yesterday. If your negotiations don’t work, you can take further action to get your problem resolved. ECU fuse blowing, Car wont start A recent 500 mile drive across Europe was achieved with no problems and I decided to wash the car to get rid of the salt which it had collected on the run from. the problem goes and the car starts again. If these seem familiar to you, you might want to have your car’s ECM checked. It stores the malfunction code in its memory. My mechanic said that there are hard codes in the computer that he can't reset and most likely the computer needs to be replaced. I am listing them below: 1. If the function of the engine control unit is not accurate, i. The ECU is the main computer that controls the engine and if ti has a probably it usually requires a trained technician to fix it. I have tested the main relay, tested for spark, and checked the main relay wiring harness. to toyota dealership they told us they could. Circuit description: The ECM supplies a voltage of about. See all problems of the 2011 Dodge Durango. While vehicle manufacturer terminology may differ, a typical system works like this: At speeds below 40 MPH, the Electronic Variable Orifice valve (EVO) is completely. Check power and ground to the ECM. Below is a helpful guide to determine if you have a faulty ECU. Is this common and about how much. A bad or failing ECM may produce any of the following 5 symptoms to alert the driver of a potential problem. TOYOTA ELECTRONIC TRANSMISSION CHECKS & DIAGNOSIS. With strong ties to the commercial transportation industry, we understand how important it is for us to perform our truck ECM services quickly and efficiently, so you and your truck can get back to business. However the one thing it can't do is stop the car from running at all. The O2 sensor varies the voltage within a range of about one volt, if the exhaust is rich, down thru about. The fact you are speaking of temperature sensors and that the problem occurs in the same place suggests to me it is temperature related, ie the car has warmed up to a specific temperature after. Another possibility is it's inability to set Readiness monitors for emissions testing. If the ECU senses a malfunction: 1. And that is the reason which makes it most important part in Automotive. Most Common Signs of Engine Speed Sensor Problems. Here's how to reprogram your car's engine immobilizer to program new keys in the invent of lost keys or a swapped ECU. Another will start with a different key after a while. Team-BHP > Under the Hood > Technical Stuff: Hyundai i20 ECU Trouble Hyundai i20 ECU Trouble. Last night, I decided to go to my car's dealership for an oil change. The car will not start; If an otherwise well-maintained car will not start, rule out things like the battery, starter and other electrical problems. NitroOBD2 Chip Tuning Box works based OBD2 protocols as remaping the Car’s computer ECU. We specialize in repair services and supply of ECM PCM engine control modules and powertrain control computers for most makes and models for cars and light trucks. When these vehicles have a bad ECM it's usually the output of a reference voltage problem. It's Not Resetting the ECU is NEVER a valid response to a problem. I'm wondering if that frayed wire might have contributed to the problem. I started searching on webs. Seems like the ECU is the problem!. (If measured with a ten megohm DVM, this may read as low as. When conditions change, the ECM will automatically make adjustments in real time. Best Regards. I am not suggesting that everyone who has this problem to change their ECM. How to fix a car's computer system that. The yearModel field is an int that holds the car's year model make. If the relay fails, or has any issues, it can cause the vehicle to have all sorts of problems, and may even render it undriveable. RE-TEST THE ORIGINAL ECM: Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. These checks will help you make sure you have found the problem and not just "assumed" the motor was bad and replaced it. The tendon starts on the back of the forearm, but at the level of the wrist joint, it is directly on the side of the joint. My mechanic said that there are hard codes in the computer that he can't reset and most likely the computer needs to be replaced. V r goin 2 buy a car Lancer 2005 1. Last night, I decided to go to my car's dealership for an oil change. LScowboyLS, the legendary ECU builder who discovered capacitor issues in many Lexus, Toyota, Nissan, Honda, Audi, Ford & other. The ECU of a high-performance car permits the kind of response that is simply not possible in an automobile that does not have it. 3L four-cylinder Ford Escape PCM (Power Control Module) or ECM (Engine Control Module) damaged by failed ignition coils. We can source and supply Discounted Car Ford Fiesta ECU Parts & ECU Spares to you, no matter where you live. 8 16V: engine control unit failure ECU failure is a known issue with these models and is becoming increasingly common with older cars. Flat batteries are commonly caused by leaving the lights on when the engine's off. So if you or your mechanic is going crazy trying to figure out why your car won't run, it might be because your car's ECM is just tired from doing it all, and needs some. We designed the ADU5 and ADU7 in response to market demand for a cost-effective dash display with logging capabilities. C) ECM self shut-off function is malfunctioning. When installing the AFC neo, both this document and the Instruction Manual are required. Observe the orange 'check engine' light in the bottom left corner of the instrument pod. Skoda octavia won't start - can't communicate with ECU. See all problems of the 2011 Dodge Durango. Looking for online definition of ECM or what ECM stands for? ECM is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionary. I did smell smoke and felt heat but there was no ignition of fire. Easy to use parts catalog. Auto, Car, Truck Computer systems,ECU,what is an ECU,sensor,engine control computer, drive by wire, driveability, symptoms,help with diagnosis, repair,check engine. If an ECU detects a. A number of engine problems on current models attribute this to a faulty ECM. The key is read by the computer and if it matches, it will enable all. I’ve seen dealerships change ECMs on cars where they’re not needed, because they couldn’t be bothered doing any diagnosis. If you notice that your check engine light is always on, take your in vehicle in for service and request that they check the engine control unit. system must detect transponder value from chip in key in. We repair foreign and domestic car computers. car has no idea of whats causing the problem car said that they had been told that the ECU's don't. The op-com software keeps displaying: 'no reply from ECU'. How to clean electrical connectors on your car. It did this 4 times and now I can't even connect to the ECU via software. However, there are a number of common repairs you can do yourself at home. A diagnostic scanner may not be able to read your car's codes. The part number consists of three components: Honda's part number for ECU, which is always 37820; Three characters (which are loosely related to the model of car/engine). If the problem occurs again, replace the original ECM with a new one. Audi Ecu Repair. Join the fastest-growing online community for car enthusiasts for in-depth discussions, quick chats, photo sharing and more. Car only has 4,700 miles and was purchased new from servicing dealer. It is worth noting that not all problems will turn o. Resetting the ECU. when I took it back to subaru to ask them what was wrong with my car they told me that it was normal for the car to do that as the ECU is trying to restart it sell cause you just yanked out its power. Most (but not all) problems are automatically detected and flagged by the car's ECU by lighting the Check Engine Light (CEL). See more ideas about Car ecu, Automotive locksmith and Auto locksmith. Our profession includes ECM repair, ECU repair and all kinds of car computers and control units for Audi, BMW, Honda, Mazda, Mitsubishi, Nissan, Subaru. It is doubtful that any autoparts store can check one for you. All relevant coding and adaptation values have been transferred from the ORIGINAL (OLD) ECU to the REPLACEMENT (NEW) ECU. The powertrain control module, otherwise known as the PCM or computer, is essentially your vehicle's brain. Questions? Call us 1-313-462-0124 Check out our customer REVIEWS; How To Test The Engine Computer. Pioneers in ECU Remapping, Diesel Tuning, DPF Removal, Engine Tuning and Chip Tuning. Prices of Lexus ES 2020 – ES300, ES330 & ES350 in Nigeria 2020. I recently just got my Kia Forte 1. Again, the engine control module is what allows the pedal you are pressing down to communicate with all the necessary components to give you the power you need. First, you send us your damaged ECU. How to clean electrical connectors on your car. Every control unit we ship is flash programmed to your VIN number, and ready for immediate installation. Although the first day it did make a sort of rattling noise which scared me for a second. I tried to keep myself sharp, but usually, a whooping from a problem car was just what the doctor ordered when I got lax. The ECU in a vehicle can be manually restored by the driver without the help of a dealer or mechanic. Bottom line the voltage of the car is not right, the alternator is new and excellent condition, but I still get the battery symbol on the car display with "Check Charging System" message. Doing it this way allows you to bring each stage in progressively as the boost level rises, which in turn will make your. Poor performance or a drop in fuel efficiency is sometimes due to a faulty ECU. If one of the modules cannot communicate with the ECU, that module will set a diagnostic trouble code and turn on the check engine light. First of all do you still have warranty? If by ECM problem the ASC meant that it is a software problem, then with the engine scanner, they can rectify it in no time and at minimal cost. Looking for online definition of ECM or what ECM stands for? ECM is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionary. The problem is with the design of the original ECM, and since the car is 6000 miles out of warrantee both the dealer and Toyota have denied any adjustment. Get the perfect Engine Control Module from us here at Auto Parts Warehouse right now. That lead ended up (logically) to be the wrong path. If you own a Mercedes Benz and your engine control unit has failed, we can save you a lot of valuable time and money. When problems with the ECU or by its other term which is an ECM that controls most of the relevant function, to keep in good running condition! Like all car components; the ECU or ECM will have to undergo maintenance like other components, but this is vastly. Reset Your Volvo's Computer = Big Difference How to do the reset? By simply starving the car's ECU of electricity. MINI Cooper Performance ECU upgrades for street & race. If the ECU detects that the air flow meter or circuit is not working, it estimates the air flow from the throttle position sensor. If you've already cleaned all fuses, relays, and their contacts, then a peek inside your ECU may be in order. The ECU itself only draws about 250mA so it doesn't require a separate power cable. Usually a problem with the ECM power relay will produce a few symptoms that can alert the driver of a problem that should be serviced. Thanks, already replaced the ECU relay (assuming that's the one you mean) a couple of times to no avail. Beware some car remapping or chip tuning companies are only able. This bit of information became important when I installed a Hypertech chip in my car. or it will not start. What will NOT happen with an ECU reset Any ECU programming/flashes done by Mazda/Dealer won't be lost/erased. It's used to regulate many systems and subsystems in your car's engine, drive train and other major components. Welcome to AUTO COMPUTER PERFORMANCE! Your one-stop-shop for plug and play ECM / ECU / PCM Electronic Controllers, Engine Computer Controllers, Transmission & Body Controllers. I got a datalog of it, but it stops when the ECU shuts down. The ECM internal voltage was reporting 4. ECU programming is the process of taking a ROM file and writing it into permanent storage in the engine management ECU. Figure 1 - ecuExplorer Reset ECU option Classic (JECS) ECU Reset Ensure engine is at normal operating temperature, turn engine off. when I took it back to subaru to ask them what was wrong with my car they told me that it was normal for the car to do that as the ECU is trying to restart it sell cause you just yanked out its power. What's ECU? It's Engine Control Unit. If that light goes out, the car is immobilsed, at least by the starter not cranking the engine if you try to start it. Why Servicing Your Car is Essential. Please discard all previously released paper copies of NTB00-006. Holden dealer wants another $100 to have a look. Dealers have access to Regional Offices and the National Technical Services Department for assistance in resolving customer problems. To troubleshoot the engine computer or Ecm in your car, proceed to the appropriate series of ECM tests, arranged by manufacturer. You can still start and drive the car, but ECU will prevent the engine revs from exceeding 2,400 rpm. General Motors was the forerunner in computerized technologies with the other two domestic car manufacturers only meeting the bare minimum to abide with the new regulations. The PCM in your car or truck is designed to control and regulate all of its functions and parts. New 2009 Cadillac CTS Ecm Problems. Modern Toyota and Lexus vehicles use a key with an embedded RFID chip as an added means of theft prevention. It tells how hot or cold the engine coolant. Dealers have access to Regional Offices and the National Technical Services Department for assistance in resolving customer problems. We repair ECM / ECU for just about every make and model. Auto Computer Exchange customer-centric auto computer re-manufacturing & rebuilding company. Check engine light never turned on. The software. We can supply new, reconditioned, second-hand or rebuilt units. Questions? Call us 1-313-462-0124 Check out our customer REVIEWS; How To Test The Engine Computer. Even the initial premise was wrong. Best Regards. The Engine Control Module(ECM), also known as the ECU or powertrain control module, is located underneath the car's dashboard, behind the glove compartment. ECM EEP-ROM system is malfunctioning. The repair shop said the main computer failed. Find out your rights if you've bought a used car and something has gone wrong. All of our engineers have the necessary skills and experience to complete your truck ECM programming and repair jobs on time, the first time. In some circumstances, an existing warranty on the vehicle may cover this expense if the engine control unit fails prematurely. Already tried different kind of software versions but all of them keep displaying the same message. For slightly improved throttle response, you may try to decrease the value. The engine control unit is one of the most important parts of your car’s on-board computer. Common ECU Problems. It doesn’t matter whether your car has a serious mechanical problem, damage from a serious crash, or is a complete write off. Having a driveability problem? Does your car shut off while driving? Is your check engine light on? Have you replaced components in the vehicle, but the codes still won't clear. A thousand Thankyou's Richard for nailing the source of this puzzling problem down and pointing me in the right direction as to the successful repair! Bob B. have common problems with misfire on two cylinders and complete non start due to lack of ignition output to the coils. window or door replacement. MINI Cooper ECU Reset Procedure R50 52 53 MINIs, learn from the experts at MiniMania com your car. Figure 1 - ecuExplorer Reset ECU option Classic (JECS) ECU Reset Ensure engine is at normal operating temperature, turn engine off. Maruti has apparently come up with a solution to the new Maruti Swift’s low-speed braking problem. Whether that is understanding what your tuner is doing, tuning your own car or pursuing a career as a professional tuner, we have you covered. Repair engine control unit EDC16C2 Mercedes C220. As ECU repair specialists we are capable of carrying out a wide range of ECU repairs. OBDCHINA, established in Jan. If the check engine light turns on and you start noticing problems with your vehicle's performance, take it to an auto service shop right away. £1,000 for the ECU, but I'm not sure that this will cure the problem. Sometimes, car part names are so strange that we forget that terms are completely intuitive and logical. Get this totally free software program for tuning the car chips and extract the beast from your car motor! Microchip tuning represents adjusting or updating an erasable programmable read only ram micro-chip in an automobile's or different vehicle's electric control unit (ECU) to reach outstanding efficiency, regardless of whether it be more force, better emission , or perhaps much better. These OBD2 codes are stored when a sensor in the car reports a reading that is outside the normal/accepted range (Eg: fuel mixture too rich). ECM Repair - We are a leading automotive ECM, ECU repair company and can repair any ECM, ECU model with perfection and life time warranty. Advanced Display Unit We are proud to announce the new ECUMASTER Racing Dash family of products. Check engine light never turned on. Can I repair problems with my car’s Engine Control Module? Computer systems now manage and handle more than ever, and your vehicle’s engine is no exception. 2D 1999-03 engine code 611. Modern vehicles are complex and repairing them can seen daunting. It's also the ECU's job to store your driving data to customize your ride. My car never returned a fault code. Different fault codes when ECU cables has broken by steering shaft One reason can be broken cable fastening – the cable has moved from its correct position and rubs against other parts. The ECM, also commonly referred to as the ECU (engine control unit) or computer, can cause a variety of RAV4 transmission shifting problems documented here in this official Toyota technical service bulletin. The term ECU is often used for Electronic Control Unit (which could be more or less any electronic unit in the car). When the problem occurs, put the car in neutral, and cycle the key off and back on, starting the car. My Auto Solutions remanufactures ECU, ECM, PCM, and FICM units for customers throughout the metro Atlanta area. The information provided aides in determining the cause of the problem. The best way to tell if the ECU is working is to run ECOMCat with Ecom cable on the device. For the communication, a small OBD adapter is needed in addition. You can look for pictures you like for info functions. We can source and supply Discounted Car Renault Clio ECU Parts & ECU Spares to you, no matter where you live. This can be done and any car owner should appreciate is the technological advance. I have tracked down a fuse that was blown in the fuse box under the hood by the water jug. Car Computers for Sale. Well depending on what the problem is you probably can't do a whole lot to fix it. Diesel Tuning Australia (DTA) epitomise what customer service should be. EcuTek specialise in Nissan, Subaru, Mitsubishi and Mazda performance vehicles. One question, if I tried to start the vehicle after replaced ECM with the old key, will it mess uo the new computer? Also, I lost my keys a cpl years back and no longer have a key fob. The instrument panel does not turn on, the stereo does not either. Even the initial premise was wrong. Engine Control Μodule (ECΜ. The owner of the business was very apologetic, but his belief is that it does not sound like an ECM problem. Flat batteries are commonly caused by leaving the lights on when the engine's off. It doesn’t matter whether your car has a serious mechanical problem, damage from a serious crash, or is a complete write off. Only the new stuff the ECU learn on its own is lost. Call (800)737-0915. If you experience either of the first two problems above, act on them as soon as possible. and hopefully you did not burn anything else. This is a public service announcement for all of you out there who think that resetting the ECU is a logical debugging step when you encounter a problem with your car. Some of the most common symptoms of a malfunctioning ECU include permanently lit …. Anyone know any good replacement part or around how much it will cost. Although the first day it did make a sort of rattling noise which scared me for a second. TOYOTA ELECTRONIC TRANSMISSION CHECKS & DIAGNOSIS. I started the car several times and the problem was still there. A bad ecm will cause drivability problems, false codes, car may not start and etc. Therefore, if something is not working correctly with the Engine Control Unit, serious problems could arise. OK MKI vRS been having issues with starting car when its been sitting in direct sunlight, so car has been at dealers since monday get a call today saying they have traced the problem to the ECU :( now there saying its a bad earth within the ecu and they can supply a new one for a small amount of. when the vehicle finds a problem with some component or another, it will "store" a code. Looking for online definition of ECM or what ECM stands for? ECM is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionary. I'll appreciate your help and recommendations on this issue. If the fuse blows, the problem is the cam sensor or wiring to it. The ECU or "Electronic Control Unit" is a small computer that runs the car's fuel, ignition and emission systems. It did this 4 times and now I can't even connect to the ECU via software. the relay of the pump is not opening because it is not getting the signal from the ecu to open. Swap the ECU (In newer cars from 1995. At Module Experts, we offer services across every automobile brand, including diesel and heavy duty commercial applications. One thing I found out about my car, which has the five speed manual transmission, is that its MEMCAL is for a car with an automatic transmission. So, in essence, you can put a replacement transmission in your car and still have a problem. Keys that have been previously matched to a different Immobilizer 3 System cannot be reused with another one (which has a different Immobilizer ID). Instead of praying for the scary light to turn off, let's handle it ourselves. The ECU "learns" about your engine as you drive the car. If you notice that your check engine light is always on, take your in vehicle in for service and request that they check the engine control unit. Like the problem in the photo attached to me, my car could not start because of this problem. The engine control module (ECM), also referred to as the engine control unit (ECU), is a critical component which links your engine to the central computer of your vehicle. have the ecm flashed , no flashing ecu the car does not see the ecm or key. I think the long term fuel trim on my car was messed up from when I had a faulty distributor cap on and the rough running became the ECU's way of life. We are dedicated to absolute customer satisfaction. Car Won’t Start; This is the most likely electrical problem you will experience in your car. I’ve seen dealerships change ECMs on cars where they’re not needed, because they couldn’t be bothered doing any diagnosis. These codes cover All Ford Models in Europe at least and possibly other regions. We recommend you always seek car advice from a qualified mechanic before making repair decisions. The ecm, electronic control module. In response it will pull ECU pin 63 and 66 low to turn on the MPI relay. Vauxhall Vectra, Zafira and Astra, 1. This is a public service announcement for all of you out there who think that resetting the ECU is a logical debugging step when you encounter a problem with your car. 3-Continue plugging in sensors one at a time and try starting. Recently, the battery was removed for maintenance and following re-installation, I have been unable to get the ECM to show as being READY to be emissions tested. ENGINE SPEED SIGNAL. How to fix car computer problems with a little spray cleaner, DIY with Scotty Kilmer. The original Ecu will have to be replaced because the engine is fitted with more powerful nozzles than the original one, which has been disassembled from a crashed car. I think by 2004, when it started to have the vehicles VIN # "integrated" in the ECM. I am not suggesting that everyone who has this problem to change their ECM. Please refer to this bulletin (NTB00-006b) for complete information. It's also the ECU's job to store your driving data to customize your ride. Recall, investigation, and TSB data is from NHTSA. I took the car to the Fiat garage for a diagnostics test and the outcome is that the ECU on my little 500 needs re-programming (at a cost of £450 - the car's conveniently three months out of its warranty). If problem does not occur, this is intermittent problem (Refer to “Intermittent Problem Inspection Procedure” in Basic Inspection Procedure). We program all of our ecm's on site, we diagnose, rebuild and troubleshoot all internal circuit malfunctions until all OBD trouble codes have been identified and safely removed. I had it towed back to my house and noticed the check engine light would not come on and the car would not start. The ECT sensor is one of the most important components on a modern car. Problems with any of these components can cause problems with the vehicle’s operation. Another will start with a different key after a while. Resetting the ECU. Any advice would be appreciated,. In every GM W-Body car, there is a computer that controls virtually all aspects of the engine's operation. Remove the ECM from its holding brackets. Welcome to AUTO COMPUTER PERFORMANCE! Your one-stop-shop for plug and play ECM / ECU / PCM Electronic Controllers, Engine Computer Controllers, Transmission & Body Controllers. Car ECU Flash Reprogramming & Why Reprogram. ACR is the solution for all of your automotive computer needs with over 25 years experience. Get yours today!. ECM vs PCM: What’s the Difference? (Updated) Whether you’re looking to tune your car or you want to understand why your car isn’t running right, you’ll have to learn about on-board computers. If not checked, it can cause major damage or render it useless. Just about every car made in the last 15 years uses a car computer. If the transmission has a mechanical. However, a very noisy supply to the ECU can cause problems. Dealership cannot explain shaking. This is a 2006 model. The check engine light does not come on when the key is turned to the on position like the battery, oil,. After checking the normal reasons a car does not start, such as battery and electrical components, the ECU is the next logical component to check. ECU (Engine Control Unit) Cars, ECM, Parts, Functioning. Since the ECU controls the workings of an engine, any problem with it will have a direct effect on the engine's performance. The PCM in your car or truck is designed to control and regulate all of its functions and parts. New 2009 Cadillac CTS Ecm Problems. For around the first 1,000 miles of the ECU being reset, the car adjusts to the driver's typical. Owners please be aware, if your car goes defective with a MAFS problem and is taken to a Mercedes garage for repair, MB will fit a new ECU/MAFS unit without question they will not want you having it repaired even though the warrantee period allowed by ECU Testing is greater than that on their new unit, so be on your guard, you are the customer, it is your car tell, them what your want done and. got car in for repair toyota dealership told us they replaced the ecm problem solved. Will a ECM problem prevent the Egine Light from coming on when the car is cranked up? 2 Answers. Auto ECU Repair , edc16 repair manual, edc17 repair manual, bmw ecu repair manual, ferrari repair manual, ecu block diagram, ecu function diagram, ecu circuit diagram, ecu ic functions, bosch ic tester, bosch ic test. APR Plus ECU Upgrade with a Limited Powertrain Warranty. Q: How does the controller know what to do?. With strong ties to the commercial transportation industry, we understand how important it is for us to perform our truck ECM services quickly and efficiently, so you and your truck can get back to business. With the ECU programmer, you can read and program the whole ECU content of eprom file. 2008 Saturn Vue, 40K, V6, auto.