Tag Archive | x431 immo elite

How to Clone BMW MSD81.2 DME Using Launch X431 IMMO Plus

Feb13

If you need to replace a BMW MSD81.2 engine ECU (DME) with a used one, you can do so using the Launch X431 IMMO Plus/IMMO Elite. This guide walks you through reading the ISN (Individual Serial Number) from the original ECU, modifying the flash data, and writing the ISN to the replacement ECU to ensure compatibility with the vehicle.

The same procedure applies to MSD80, MSD85, MSV80, and similar models.

Step-by-Step Procedure

  1. Access the ECU Replacement Function
    Navigate to: BMW Function → Main Function → Engine Module Replacement → Bench Mode → MSD81_TC1796.
    Check the wiring diagram.
  2. Connect the Original ECU
    Use the X-Prog3 programmer and follow the provided wiring diagram.
    Establish a connection with the ECU.
    Wait for the security login process to complete.
  3. Read & Backup Flash Data
    Read the chip ID.
    Back up the flash data from the original ECU.
    Save the flash data.
  4. Retrieve the ISN Code
    Select “FLASH Data Decryption” to extract the 32-digit ISN code from the original ECU.
    Record the ISN code.
    Disconnect the original ECU.
  5. Prepare the Replacement ECU
    Connect the replacement ECU to the Launch X431 IMMO Plus/X-Prog3, following the same wiring diagram.
    Establish a secure connection and log in.
    Back up the flash data from the replacement ECU.
    Extract the ISN from the replacement ECU’s flash data.
  6. Modify the ISN Code
    Select “Change ISN”.
    Input the 32-digit ISN from the original ECU.
    Successfully modify the ISN and save the updated flash data.
    Verify that the modified ISN matches the original ECU’s ISN.
  7. Write the Updated Flash Data to the Replacement ECU
    Select “Restore Flash Data”.
    Choose the latest modified flash data and write it back to the replacement ECU.
    Confirm that the flash write process is successful.
  8. Install & Test the Replacement ECU
    Disconnect the ECU.
    Install the replacement ECU back into the vehicle.
    Test to ensure proper operation.

Done! The replacement ECU is now successfully cloned and functional in the vehicle.

How to add smart keys to Volvo XC40 2018- 2021 with Launch X431 IMMO Elite/IMMO Plus?

Jun30

To add smart keys to Volvo XC40 2018-2021 using Launch X431 IMMO Elite/IMMO Plus, you can follow the simple steps outlined in the “IMMO Prog” function. The entire process takes approximately 3 minutes.

First, select the Volvo option in the menu, and then choose the newest version V10.03. From there, navigate to the Anti-Theft Key Matching section and select XC40 as the specific model for key matching. Make sure you choose the correct year range, which is 2018-2021.

Before proceeding, it is recommended to check the Volvo/Lynkco anti-theft operation guide provided by Launch X431 IMMO Elite/IMMO Plus. You will find an operation introduction and a wiring diagram that you can refer to throughout the process.

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To add a key, you will need to remove the CEM (Central Electronic Module) module from the vehicle. Follow the provided instructions carefully to ensure a proper and safe operation.

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After removing the CEM module, you need to connect the Launch X–Prog3 key programmer to the module using the MCU V1 and MCU cable V1, following the provided wiring diagram.

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Once the connection is established, you can start reading the CEM security data and adding the smart key. Select the “Read CEM security data (disassembling and reading)” option and pay attention to the prompts on the screen.

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Make sure to save the vehicle immobilizer data after reading it successfully. This step is crucial for the key matching process.

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Next, select the “Smart keys added” option and follow the prompts on the screen. Turn the START knob to the right once and release it, and load the CEM security data that was just read.

To complete the key matching process, place the smart key to be matched in the designated sensing area, usually marked with a key symbol on the cup holder. Ensure that there are no other keys inside the vehicle during this step.

If everything is done correctly, you will receive a confirmation message stating that the key matching was successful.

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In addition to Volvo XC40, Launch X431 IMMO Plus/IMMO Elite is also capable of successfully matching anti-theft keys for Volvo S40 2004-2012.