Xhorse MQB48 Adapter Data Length Error Solution

 Problem:

Had a problem with Xhorse MQB48 adapter. VVDI MLB Tool will read the original key ID, but cannot collect key data.

Error:

“Data length error. Check whether the 8-pin memory chip inside the MLB device’s motherboard has been replaced.”

Solution:

To use the VVDI MLB Tool MQB48 function, you must replace the 8-pin chip inside the MLB Tool device motherboard.

The MQB48 adapter comes with solder wires and an enhanced version replacement chip.

Check how to replace the chip for the MLB tool:

http://blog.vvdishop.com/how-to-update-vvdi-mlb-tool-firmware-to-use-mqb48-adapter/

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.

www.vvdishop.com

BMW F30 EDC17C50 IMMO Off with Xhorse Multi Prog

 In this guide, we will read and disable the immobilizer on a BMW F30 EDC17C50 ECU (Engine Control Unit) using the Xhorse Multi-Prog tool. This procedure is essential for tasks such as adding or making keys for BMW vehicles, as it involves extracting the ISN and modifying the ECU’s immobilizer settings.

Step-by-Step Procedure

1. Connecting the ECU

1. Identify the Connectors:

   • The ECU has two types of connectors: rectangular and circular. The circular connectors are used for transmission control modules, while the rectangular ones are for ECU communication.

2. Connect the Power Leads:

   • Attach the negative (ground) lead to pin number 2.

   • Connect the positive lead to the appropriate pin.

3. Attach Communication Wires:

   • Connect the remaining wires (red, blue, purple, gray, yellow, and green) to their respective pins as shown in the pinout. Ensure all connections are secure to avoid communication errors.

4. Secure the ECU Adapter:

   • Attach the ECU adapter to the back of the ECU and screw it in place.

2. Reading the ECU Data

1. Power On the Multi-Prog Tool:

   • Turn on the Multi-Prog tool and ensure the ECU is properly connected.

2. Read the Internal EPROM:

   • Select the internal EPROM option and click Read. This process takes approximately 4 minutes and 16 seconds.

Save the read file, which contains critical data such as the VIN and ISN.

Read the Internal Flash:

• • Next, read the internal flash, which takes longer (around 7 minutes). Save this file as well.

3. IMMO OFF with Multi Prog

Load the Saved File:

• • Navigate to the Tool tab- Turn Off IMMO option in the software and load the saved EPROM file.

Generate the Immobilizer-Off File:

• • Confirm the action to generate the modified file with the immobilizer disabled. Save IMMO OFF file.

Write the Modified File to the ECU:

• • Select the IMMO Off file and write it back to the ECU. The process involves sending and receiving data, accompanied by clicking sounds indicating communication.

Verify the Write Operation:

• • After writing, read the ECU again and compare the data with the IMMO Off file. Ensure the files are identical to confirm the immobilizer has been successfully disabled.

Final Notes

• Bench Mode: The entire procedure is performed in bench mode, meaning the ECU is not installed in the vehicle.

• Time Management: Reading and writing processes may take several minutes, so patience is key.

• Verification: Always compare files before and after writing to confirm successful modifications.

With practice, this process becomes straightforward, enabling efficient ECU management for BMW vehicles.

www.vvdishop.com

How to Fix Xhorse Multi Prog Server Calculation Error FFFF000C

Problem:

Tried to read VAG SID10.4 ECU with Xhorse multi prog but failed, multiprog reported an error “Server Calculation Error FFFF000C “. Any solution?

Solution:

1. Make sure you have a good network connection.

2. Server is under maintenance. If the server is ok, do test 18.

Test Function- Input 18 command.

Click Read to read the test result.

Send the test result to our customer service or Xhorse engineer.

Xhorse engineers can see your test results and fix the problems/bugs. Then read ecu again.

www.vvdishop.com

Where to Get Sentra B18 2022 Pin Code for VVDI Key Tool Plus

 Problem:

Tried to program 2022 Nissan Sentra B18 smart key with xhorse vvdi key tool plus. It asks for a 32-digit rolling code.

Where can I get the pin code?

Solution:

Key tool plus cannot pull pin code for Sentra B18.

Need to remove HFM hands free module and read pin from dump.

Xhorse multi prog will read HFM data, but key tool plus cannot decode pin code automatically.

Need to send data to xhorse engineer to decode pin code manually.