When troubles arise, I reach out to friends on the forums for suggestions. You can make otherwise worthless parts a new life in a new car. Some are static and common. With the help of an EPROM, you can modify how your ECU manipulates the various functions of your engine. Look no further than keycode and nastf. The EEPROM you will work with is near one of the two micro-controllers of the ECM. An EEPROM programmer is a device which allows access to and rewriting of data that is stored on an EEPROM microchip. Thanks EEPROM Get: Get values from EEPROM and prints as float on serial. Obviously an EEPROM is a specific electronic device. Users can remove code chip by himself from vehicle anti-theft case,dashboard and other code saving control unit and read code by eeprom adapter. 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. EEPROM work requires a tool (locksmith kit) which is capable of reading data from an eeprom and saving it to a file. EEPROM Iteration: Understand how to go through the EEPROM memory locations. The whole eeprom industry has sprung up for many of the reasons Mike has already…, True, I could research on my own (and do), and purchase several tools and junkyard computers to perform experiments with and spend countless hours and untold dollars trying to figure it out, The reason is OEMs like GM,Ford, Chrysler, BMW, VW/Audi, Jaguar, Land Rover, Toyota/Lexus, Mercedes and others design parts that are one time use. Some of the best sources are also on this forum. However, lines like these: Unlike EPROM chips, EEPROMs do not need to be removed from the computer to be modified. Good for EEPROMs, MCUs, has a good Immo-content. Therefore the mileage of the original vehicle that the cluster was from will be displayed on the dash. Sorry to hit you with what I'm sure are simple questions for you, but this stuff is fascinating and doesn't seem like it's discussed all that often. ”Any work where you have to open up the ECU could be regarded as EEPROM work.” You have and continue to pay your dues in our complex field. JJ, Apple devices were the first to implement this feature to prevent independent repair facilities from performing repairs. This is great, Michael. Get the one that comes with remote control, EEPROM adapter, and free shipping like a pro. Soon the $500 investment becomes a gateway to bigger and bigger expenses. I hope the question is clear. EEPROM, or E lectrically E rasable P rogrammable R ead- O nly M emory, is a type of device that allows you to store small chunks of data and retrieve it later even if the device has been power cycled. 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. You would then install the ECU and marry keys to it. EPROMs are used in all kinds of devices, and now it has found its way to automobiles. Then solder to test board. This is primarily VIN and Immobilizer Data. Sometimes it is referring to repairing an ECU at board level. I would be greatly interested in taking a class from you on this subject. Thank you. Clone if you want a plug and play module. Others you have to open the ECU and interact with a small integrated chip that stores the information. Culturally it is common for us to use terms that are not technically true but are commonly accepted. Another is free scans from parts stores. All 100% websites with car EEPROM dumps show that all 2006-2010 dashes have a 93c76 chip. Bosch MED 17 ECUs can be copied but once done will not work. By using this SEED / KEY process the OEMs keep you out of the MAP and other sections of the PCM. No OEM software required. I have a binder I keep on every ECU I do. By this same standard the toyota eeprom job you spoke about has an average going rate in my town of 200.00 bucks. And that's the guy the toyota dealer calls because I refuse to work for cheap when I've invested so much in my career. (note: I'm not…, Yes. Some can be read "in circuit" and some have to be removed from the board and soldered to a test board. Like taking the original and donor Toyota ECUs and cloning the original to the donor. I was with GM when we started "reprogramming" the EEPROMs on GEO's Storms in the very early 90's. 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