Launch X431 Diagnostic tool

This article explains how to use the Launch X431 ECU & TCU Programmer to read and write ECU data step by step. By following this guide, you can safely back up and restore ECU EEPROM and Flash data using bench mode. Step 1: Get Related ECU Information 1. As shown in Figure 1, select the target ECU by navigating through: Brand → Model → Engine → ECU. Select the corresponding ECU type based on the vehicle information. 2. Alternatively, you can search directly using the search box. Enter relevant information such as Brand, Bosch ID, or ECU type. For example, search for the MED17.1 ECU to quickly locate the engine model, as shown in Figures 2 and 3. 3. Click the Direct Connection Diagram to view the ECU wiring diagram. 4. Refer to the wiring diagram and use the BENCH mode cable together with the appropriate adapter cable to connect the ECU to the Launch X431 ECU & TCU Programmer . 5. Once the connection is completed, click Read Chip ID to identify the ECU and confirm communication....

This article will guide you step by step through downloading, installing, connecting, and activating the Launch X-431 ECU & TCU Programmer software on your computer. Step 1: Download and Install the Software Begin by visiting the official website and clicking the download link for the X-431 ECU & TCU Programmer. Follow the on-screen instructions to complete the installation on your computer. Download Link: https://en.cnlaunch.com/products-detail/i-243.html#pro_download Step 2: Connect the ECU & TCU Programmer to the Computer After installation, launch the software. If the device is not connected, the software will display a message saying [Box not connected]. Use a USB cable (Type-A to Type-B) to connect the X-431 ECU & TCU Programmer to your computer. Once connected properly, the software should recognize the device automatically. Step 3: Software Activation When using the software for the first time, it will automatically enter the activation interface. After the X-...