When dealing with EEPROMs there are different ways to read and write them. Look no further than keycode and nastf. I really like that line "Being able to repair vehicles without the permission of the OEM is part of that attitude." VAG ECU EEPROM Calculato is just a modification of an existing application which allows you now to load/read ECU bin files to calculate login and some other features w/o having the associated interface/hardware plugged in your computer. Growing up we called denim jeans Levis even though many companies made jeans with denim. The mileage on most (Japanese) cars is stored on the instrument cluster itself, and not in the ECU. Short quartz resonator for in-circuit EEPROM programming or remove 93C56 from ECU board. EEPROM Read: Read the EEPROM and send its values to the computer. Sodas are commonly referred to…, Michael, I see your point, and I do not have a horse in this race. This is primarily VIN and Immobilizer Data. We refer to all adhesive bandages as Band Aids. As ones ability increases it becomes time to try new things. EEPROM (electrically erasable programmable read-only memory) is user-modifiable read-only memory that can be erased and reprogrammed (written to) repeatedly through the application of higher than normal electrical voltage. This is great, Michael. Dashboard EEPROM M35080, M35160, 080D0WQ, 160D0WQ reset in few seconds. EEPROMs are organized as arrays of floating gate transistors. You knock, and the MCU asks you a question in the form of HEX code, Ox67 (made up data) Your tool will answer, Ox75 Ox99 (also made up) The MCU will either reject your request or let you in. I currently do alot of programming and electrical work but nothing like this. Whenever the ignition is on and the PCM is energized, EEPROM self-tests are initiated. Maybe at least we can gain an understanding for each other's views. Keep the original safe. Some handshakes are many bits of data. Virginize if you plan on using OEM software to program. diag​.​net/file/f3pkz0q95… ​, Hi Dmitriy, However, the main advantage of EEPROM is that one can program and erase its contents while it is still in the system board. However, lines like these: I think it would be a good exercise to grab some of those modules and experiment with them. Would a trip to a junk yard for some cheap used modules be a good idea for someone interested in getting their feet wet in this type of work? Similar to using J2534, you will find that there are huge holes to fill. This work has become known as eeprom work. 1 Answer I have a Honda Civic 2006. Having a healthy debate on issues is an important part of society. On a positive note, if you get into it, your job becomes much more fun. If it can be done in circuit then you clean the legs of the EEPROM then fasten a clip to it to read. You got me. EPROMs are used in all kinds of devices, and now it has found its way to automobiles. Another is free scans from parts stores. The best situation is one where the entire ECU can be copied then pasted to the donor. Once the data has been read we need to create a course of action to create a prepared transponder that starts the vehicle or manipulate the data as needed to add our chip to the immobilizer. Kind of like a liver transplant. Some can be read "in circuit" and some have to be removed from the board and soldered to a test board. EEPROM which developed by XTOOL is a tool which could use to read chip that needs to be removed when reading IMMO pin code. You have and continue to pay your dues in our complex field. If there is a mountain in front of us, we climb it. As reverse engineering has become more astute, the OEMs have become more aggressive in protecting their assets. Engine control unit reading for tuning and cloning operation (will be added soon). Thanks Repeat process with donor but program EEPROM with stored data. Aquire or purchase a pile of used ecms? An EEPROM programmer is a device which allows access to and rewriting of data that is stored on an EEPROM microchip. Like taking the original and donor Toyota ECUs and cloning the original to the donor. Clone if you want a plug and play module. This saved customers $1K in the difference of cost. The memory in a car’s computer ECU that holds the programming to control the running of your engine is called EEPROM or electrically erasable programmable read only memory. For many of us the object is not to change the MAPs (Calibration Data) Our objective is to make a second hand part work like the original. It takes special software to massage the EEPROM data based on EEPROM and Flash data from the donor and the original PCM. With the help of an EPROM, you can modify how your ECU manipulates the various functions of your engine. The key is guaranteed to start the car since it was created directly from the original eeprom data. I think culturally we come from a different place. It's not the OEM's business anymore if I wanna take it apart and mess with the software, etc.. As an answer to who my trainer is, I am self taught. If the manufacturer has built in a protocol for reprogramming the, The concept of reading the data from the existing module instead of replacing it is known as. What is the difference between what Mike is trying to spread,compared to what all of the ECU and Module" rebuilders" on the market are already doing? Bill, I especially…, It has nothing to do with saving a customer $, using salvage parts, working more greener, or giving yourself an "attaboy" because you were told you couldnt. What I do know is if there is a buck to…, Hi Chris, This latter work is what is known as eeprom work and what I plan to focus on. The official reasons for this are to prevent chop shops from selling the parts and to limit liability. Chris Jacob- What this does is provide a way for one to switch between ECUs when testing. EEPROM work requires a tool (locksmith kit) which is capable of reading data from an eeprom and saving it to a file. I have been more and more interested in learning electronics repair on cars lately. This memory can be programmed and reprogrammed electrically to be able to upgrade or change the programming that controls the engine functions. Tim, check out solder​.​net I have thought about taking a class here myself. A must have.You can’t avoid to get it if you want to do the car work seriously. Everyone can bring their own project and…, Lots of practical and useful info. OR, I could find someone who has done all that (like Michael), pay him or her for their hard-earned knowledge and time, potentially avoid making bad equipment purchases and fast-track my abilities to start…. Knowing what you are getting into becomes interesting. I am going to have to remember this post, another option to keep an older vehicle going a little longer. Parts people couldnt resist public pressure for clearing codes so now welcome the secure gateway module. You would then install the ECU and marry keys to it. Some are static and common. If it helps the specific ECU is a Bosch Motronic 7.8 it has 2 Infineon C167xx processors (not sure the exact variant yet) and 800BB (1MB) flash and 95320 (32Kbit) eeprom. Obviously an EEPROM is a specific electronic device. When I get one that I have to take the walk of shame back to the shop, I make sure I keep up to date on each tools progress. How to know what EEPROM a car has? This takes special software. How to know what EEPROM a car has? This is primarily VIN and Immobilizer Data. Any work where you have to open up the ECU could be regarded as EEPROM work. Among these electronic parts, you will find the EEPROM, an electronic part that allows many modifications to improve the car’s engine. In the picture above, you can see the location of the immobilizer EEPROM. Tim i have to agree with you​.​We all know we can research or read a book or go to trade school or college for our profession​.​We also know there is no replacement for experience in this field.I think taking a class put on by Michael would put you ahead of the game experience wise because your going to learn all the mistakes he made without committing them yourself. If there is not a solution, I respectfully decline the job. JJ, Finally the immobilizer is installed back in the vehicle and the car is ready to hit the streets of Portland once again. I have spent hundreds of hours of research and thousands of…, It's a pandoras box that can't be closed. The concept of reading the data from the existing module instead of replacing it is known as EEPROM (Electrically Erasable Programmable Read-Only Memory). Get the one that comes with remote control, EEPROM adapter, and free shipping like a pro. Sometime between 1998 and now some clever engineers put together a tool called EZ Flasher. 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