Consult the OEM application guide for vehicles and ECUs that can be reprogrammed using the J2534 function.
![]() If an OEM cannot comply with J2534 by model year 2004, they may request one year additional extension to become J2534 compliant. Additionally, the specification includes a provision that allows OEMs to use the J2534 reprogramming method on 1996 through 2003 model year vehicles as long as OEMs make all necessary additional hardware (i.e. If an OEM cannot retroactively implement the J2534 pass-through reprogramming solution with or without special cables, they must make available to equipment and tool companies any information needed to develop aftermarket equivalents of their OEM-specific reprogramming hardware and software. Powertrain, Engine, Transmission, Throttle Controller) and is mandatory on all vehicles from model year 2004 and forward. ![]() Plus, the OEM will have to be performing reprogramming in its dealership on the particular Powertrain ECU as well. Bosch Vci J2534 Update Their OwnIf ECU Reprogramming is practiced in the dealership, then it is the responsibility of each OEM to maintain and update their own sites, and keep current applications available for download. If ECU reprogramming is practiced in the dealership, then it is the responsibility of each OEM to maintain and update their own sites, and keep current calibrations available for download. Does the ECU reprogramming event utilize my Scan Tool A J2534 compliant device for ECU reprogramming is considered a vehicle interface. A device requires a Windows-based PC (on which the reprogramming application software operates), with a USB or Ethernet port, and an internet connection (for Internet access to obtain reprogramming application software and calibration files). Newer vehicles with CAN protocol may be as fast as 2 minutes, while vehicles with CAN that have a lot of data to download will take well over an hour. Older vehicles without CAN can take anywhere from 15 to 60 minutes. You will be required to download the calibration files directly from the OEM websites, so shorter downloads equate to quicker reprogram times. Prevalent with European car makes, in some cases the OEM will require a direct connection between the vehicle, the in-shop PC (running the reprogramming application software) and the OEM server. Its this latter condition that requires the speedy high-speed connection. Consult OEM website guidance for minimum Internet connection specification requirements. The vehicles system voltage must remain constant (specified by OE) during the reprogramming. The vehicles electrical system needs to be functioning properly (e.g. Note: Battery Testers can be a key addition to ensure these systems are up to the task of reprogramming. Follow the manufacturers reprogramming instructions in a step-by-step manner. The General Motors MDI can also be used in the aftermarket although its intended use is with GM TIS.
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