In this tutorial, we’ll walk through the process of cloning a Ford Focus MK2 instrument cluster (Part No.: 8V4T-10849-HH) by reading and writing its EEPROM and Flash data using the Xhorse VVDI Prog tool. This procedure is useful for replacing a faulty cluster or performing repairs while retaining the original vehicle data.
Tools Required
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MC9S12 Cable
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Screwdriver/Pry Tool (to open the cluster housing)
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Replacement Cluster (same part number as the original)
Step-by-Step Procedure
1. Accessing the Instrument Cluster
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Remove the instrument cluster from the dashboard by gently prying it out. Releasing the clips on both sides allows the cluster to slide out easily.
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Once removed, locate the EEPROM and Flash memory chips on the circuit board.
2. Connecting VVDI Prog
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Use the MC9S12 cable to connect the cluster to the VVDI Prog tool.
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Follow the pinout diagram in the software to ensure correct wiring:
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Power (VCC)
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Ground (GND)
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Reset (RST)
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Communication lines (PCC, etc.)
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3. Reading EEPROM & Flash Data
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Open VVDI Prog software and select the Ford Focus 09-10 dashboard option.
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Click “Read” to extract:
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EEPROM data and save.
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Flash data (saved separately)
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Verify that the readings are successful before proceeding.
4. Writing Data to the New Cluster
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Once the replacement cluster arrives, connect it to VVDI Prog.
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Load the previously saved EEPROM and Flash files and click “Write” to transfer the data.
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Ensure all mileage, immobilizer, and settings match the original cluster.
5. Reinstalling the Cluster
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Carefully reinstall the cloned cluster into the dashboard, securing all clips.
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Test the cluster by turning on the ignition to confirm functionality.
Important Notes
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Compatibility is critical—the replacement cluster must have the exact same part number.
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Improper wiring or data transfer may corrupt the cluster, so double-check connections.
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This process may require additional coding for full vehicle integration (e.g., immobilizer sync).