Launch X431 GIII X-PROG 3 | Advanced Immobilizer & Key Programming Module

ECU/MCU/EEPROM Read-Write | All Key Lost Solutions | Compatible with X431 PRO Elite, V+, PRO3S+, PRO5, PAD V, PAD VII

The Launch X431 GIII X-PROG 3 is a next-generation professional key programming and immobilizer module, designed to work seamlessly with the Launch X431 PRO and PAD series diagnostic tools. Engineered for automotive locksmiths and workshop professionals, it enables advanced key programming, immobilizer system repairs, and ECU/MCU/EEPROM data operations — including all keys lost scenarios — across a wide range of vehicles.
Reliable, fast, and highly compatible, the X-PROG 3 is an essential solution for advanced vehicle security work.

Key Features:

1. Advanced Immobilizer and Key Programming

• All Key Lost Solutions: Program new keys even when all keys are lost, including immobilizer resetting and adaptation.

• Key Addition and Deletion: Easily add new keys or delete existing keys from the immobilizer system.

• IMMO ECU Read/Write: Support for immobilizer unit replacement, reading and writing IMMO data.

2. Powerful ECU/MCU/EEPROM Functions

• ECU Read/Write: Safely read, write, and back up ECU data for programming or module replacement.

• MCU Read/Write: Supports a wide range of Microcontrollers (MCUs) for deeper-level operations.

• EEPROM Read/Write: Professional-grade support for EEPROM chip data reading, writing, backup, and recovery.

• Supports manufacturers such as ST, Microchip, Renesas, Infineon, Motorola, and more.

3. Broad Vehicle Coverage

• Supports over 80+ brands, including BMW, Mercedes-Benz, VW/Audi, Toyota, Nissan, Honda, Ford, GM, Chrysler, Hyundai, Kia, and more.

• Wide range of immobilizer systems and smart key systems supported (both OBD and bench methods).

4. Intelligent and Secure Programming

• Bench Programming Capability: Enables operations directly on immobilizer units, ECUs, and MCUs without needing the vehicle.

• Password Reading & Retrieval: Supports retrieval of IMMO passwords (PIN codes) for many brands.

• Encrypted Data Handling: Safely processes secured and encrypted vehicle immobilizer systems.

5. Seamless Integration with Launch X431 Devices

• Fully compatible with X431 PRO Elite, X431 V+, X431 PRO3S+, X431 PRO5, X431 PAD V, and X431 PAD VII.

• Plug-and-play design for effortless connection and operation via your existing Launch diagnostic platform.

• Automatic software updates via Launch official servers.

Technical Specifications:

Supported Functions:

• Key Learning

• All Key Lost Programming

• IMMO Data Read/Write

• PIN Code Reading

• Key Deletion / Addition

• EEPROM/MCU/ECU Programming

• Smart Key System Programming

• Replacement of Immobilizer Control Units

• Password Retrieval

• Bench Mode Operations for Key Systems

What's Included:

• Launch X431 X-PROG 3 Main Module

• ECU/MCU/EEPROM Programming Cables

• Power Supply and USB Cables

• Connection Adapters

• User Manual

• Protective Carrying Case

Why Choose the Launch X431 GIII X-PROG 3?

• Professional-Grade Immobilizer Solutions: Handle advanced key programming, IMMO repairs, and data recovery.

• High Compatibility: Works seamlessly with the full Launch X431 PRO and PAD family.

• Comprehensive Coverage: Supports OBD, Bench, and EEPROM-level key and immobilizer services.

• Reliable and Safe: Built with multiple security protections for stable operation during programming.

• Constant Upgrades: Stay updated with cloud-based firmware and software improvements from Launch.

Take your key programming and immobilizer service capabilities to the next level with the Launch X431 GIII X-PROG 3 — a must-have tool for every serious automotive technician and locksmith.

Launch X431 X-PROG 3 | Supported Car List Overview & How to Use for Data Read/Write

Supported Car Brands (Examples):

The Launch X431 X-PROG 3 supports a wide range of vehicles for key programming, immobilizer systems, ECU/MCU/EEPROM read and write operations, including:

European Vehicles:

• Audi

• BMW

• Mercedes-Benz

• Volkswagen (VW)

• Porsche

• Volvo

• Land Rover

• Peugeot

• Citroën

• Renault

American Vehicles:

• Chrysler

• Dodge

• Jeep

• Ford

• GM (Chevrolet, GMC, Cadillac, Buick

  Asian Vehicles:

• Toyota

• Lexus

• Nissan

• Infiniti

• Honda

• Acura

• Hyundai

• Kia

• Mitsubishi

• Mazda

• Subaru

• Suzuki

Chinese Vehicles:

• Changan

• Geely

• Great Wall

• BYD

• Wuling

How to Use Launch X-PROG3 for Data Read and Write:

1. Preparation

• Connect the X-PROG 3 to your Launch X431 diagnostic tablet (such as PRO5, PAD V, or PRO3S+) using the provided cables.

• Ensure your tablet is connected to Wi-Fi and has the latest X-PROG 3 software updates installed.

2. Choose the Working Mode

OBD Mode (for key programming/IMMO jobs)

• Plug the MaxiVCI or Bluetooth VCI into the vehicle OBD-II port.

• Select the "IMMO" or "Key Programming" function from the main menu.

• Follow the guided procedure to read IMMO data, add keys, or reset the immobilizer.

Bench Mode (for ECU/MCU/EEPROM read/write without the car)

• Use the included bench cables and adapters.

• Remove the target ECU/MCU/EEPROM module from the car.

• Connect power, ground, CAN-H, CAN-L (or K-line) according to the wiring diagram provided in the software.

• Use the “ECU Programming” or “EEPROM Operation” menu to read/write/clone the data.

3. Data Operations You Can Perform

EEPROM Read and Write

• Read and back up EEPROM chip data

• Modify or restore EEPROM data

ECU/MCU Read and Write

• Backup ECU/MCU flash and EEPROM content

• Perform ECU cloning (transfer data between two ECUs)

• Modify IMMO data if needed

Key Programming and IMMO Functions

• All keys lost programming

• Add or delete keys

• Reset immobilizer systems

Password Reading (PIN Code Extraction)

• For Chrysler, Nissan, Hyundai, Kia, and many others

4. Safety Tips

• Always back up original data before making any changes.

• Ensure stable power supply (use a 12V regulated supply if using bench mode).

• Handle EEPROM and MCU connections carefully to avoid damage.

Included Accessories for Easy Use:

• Main Unit X-PROG 3

• ECU Bench Cables

• EEPROM Chip Clips and Adapters

• User Manual with Connection Diagrams

• Carrying Case

The Launch X431 X-PROG 3 is a complete solution for advanced key programming, IMMO system repairs, ECU/MCU/EEPROM reading and writing for a huge range of vehicles.
Its bench and OBD capabilities make it one of the most versatile tools for professional locksmiths and workshop technicians.