Vag+eeprom+programmer+120 'link' Jun 2026

Whether you need to recover a lost immobilizer PIN, reset airbag crash data, adjust a replacement instrument cluster, or read error codes, this tool provides direct K-Line Access. 🔑 Core Features and Capabilities

In the modern automotive landscape, a vehicle is no longer merely a mechanical assembly of pistons, gears, and axles. It is a network of embedded computers. For owners of vehicles from the Volkswagen Auto Group (VAG)—including Audi, SEAT, Škoda, and Porsche—one tiny, silent component holds the keys to mileage, component protection, and immobilizer functions: the (Electrically Erasable Programmable Read-Only Memory). Accessing this chip requires a specialized tool known as an EEPROM programmer , and a common target for such operations is the 24C128 (often colloquially referred to by its 128-kilobit capacity, or “120” in shorthand).

| Version | Key Changes | Publisher / Source | | :--- | :--- | :--- | | v1.18p | Initial well-known utility for working with EEPROM data from VAG control units | Claus Christensen | | v1.19g | Faster and more full-featured; added support for working through VCP driver | Various/Community | | | Expanded dashboard support (VDO/Johnson/Magneti Marelli); improved IMMO tools; better Win 10/11 compatibility | Various/Community | | v1.31 | Optimized color design; larger window; integrated uninstall option; works with K-Line | Unknown/Etsy seller |

| Feature | VAG EEPROM 120 | VVDI2 (Professional) | CarProg (Mid-Range) | | :--- | :--- | :--- | :--- | | | $20 - $40 | $800 - $1200 | $100 - $200 | | Desoldering Required? | Mostly yes (or clip) | No (OBD direct) | No (OBD or clip) | | VAG Immo 4/5 Support | No | Yes | Limited | | Learning Curve | Steep (Hex editing) | Medium (GUI) | Medium | | Best For | Hobbyists, MK4 clusters | Professional locksmiths | Generalist garages | vag+eeprom+programmer+120

Getting the VAG EEPROM Programmer 120 working on modern Windows (10/11) can be tricky because the drivers are often unsigned. Follow this guide:

Reads and writes EEPROM data

To interface with the software, you need a (such as the classic VAG-COM 409.1 KKL blue cable) built on either the FTDI FT232 chip or the CH340 chip. Whether you need to recover a lost immobilizer

Connect the programmer to the OBD2 port of the car and the USB port of the computer.

Do not attempt to use this tool on platform generations like the Golf Mk5/Mk6/Mk7, Passat B6/B7, or Skoda Octavia A5. These setups require dedicated CAN/UDS tools. 🛠️ Hardware Requirements & Software Setup

Note: This utility does not function with modern UDS or CAN-bus only ecosystems found in late-generation VAG vehicles (such as the Golf Mk5/Mk6/Mk7, Passat B6+, or Skoda Octavia A5). Recommended Interface Hardware For owners of vehicles from the Volkswagen Auto

Allows for mileage correction on compatible clusters (e.g., VDO, Motometer).

Crucially, the software cables. Attempting to use a cable that relies solely on CAN for communication will result in a failure to connect or a "No ECU Found" error. Many users report that the standard KKL interface works flawlessly with versions 1.19g and 1.20 of the program.

After a collision, the airbag ECU locks itself (hard fault 65535). You can clear "crash data" using the programmer.

Настройка vag eeprom programmer - Golf Mk4 - Drive2