Xhorse Multi Prog Read Mercedes ME9.7 ECU via OBD on Bench

 In this guide, we’ll walk through the steps to read a Mercedes-Benz ME9.7 ECU using the Xhorse Multi Prog via OBD on bench mode.

Step 1: Connecting the ECU

The process begins by connecting the ECU to the Xhorse Multi-Prog tool. This can be done either via OBD (On-Board Diagnostics) or bench mode. For this demonstration, the OBD method was used. The key advantage of the Multi-Prog tool is its ability to automate the connection process—no need to power on the vehicle manually. Simply plug in the OBD connector, and the tool handles the rest.

If you have removed the ECU from car, you can read it via OBD on bench mode using Godiag GPT adapter.

Step 2: Reading the Data

Once connected, the software confirms the link by displaying “OBD” on the screen. The next step is to read the ECU data. There are two types of data to extract:

• Boot Data: Typically not required for renewal but can be read for diagnostic purposes.

• Map Data: Essential for the renewal process.

The Multi-Prog tool efficiently retrieves the Vehicle Identification Number (VIN), calibration data, and diagnostic trouble codes (DTCs) from the ECU. The reading process takes approximately 6 minutes and 13 seconds, after which the tool provides a summary of the extracted data.

Step 3: Saving the Data

After reading, the data is saved for future use. This step is crucial if the ECU is being renewed for a client or for later reprogramming. The saved data ensures that all necessary configurations, including keys and calibration settings, are preserved.

Step 4: Writing the Data (Optional)

If the goal is to clone or reprogram another ECU, the saved data can be written onto a replacement unit. This step is only recommended if the original ECU is fully functional, as it ensures all critical parameters are transferred correctly.

For those working with Mercedes-Benz ECUs, this method offers a reliable way to renew or clone units while maintaining all necessary vehicle-specific data.

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