In this guide, we’ll walk through the process of creating a dealer key using the XTOOL IP900/D9/X100 PAD3 etc and KC501 programmer. This method involves reading theID48 chipfrom the vehicle’sEPROM(95C320) to extract the necessary data for programming a new key.

Tools Required

1. XTOOL IP900/D9/A80/X100 PAD3etc(withKC501adapter).
2. Soldering equipment (hot air station, flux, soldering iron).
3. EPROM reader (compatible with 95C320 chip).
4. New ID48 transponder chip(for dealer key).
5. Magnifying tool (for identifying chip pins).

Step 1: Locate and Remove the EPROM Chip

1. Access the ECU: Open the vehicle’s immobilizer unit to locate the95C320 EPROM chip.
2. Identify Pin 1: Look for the small white dot or marking on the chip (bottom left corner). This indicatesPin 1, crucial for proper alignment.
3. Desolder the Chip:
   • Applyfluxaround the chip to ease removal.
   • Use ahot air station(set to ~400°C) to gently heat the chip’s edges until it lifts off.

Step 2: Read the EPROM Data

1. Connect the Chip: Place the desoldered chip into theEPROM adapter, ensuringPin 1aligns correctly.
2. Use XTOOL KC501:
   • Navigate toSpecial Functions > EPROM > ST 95C320.
   • Select"Read Data”to extract the immobilizer information.
   • Save the data.

Step 3: Extract the PIN Code

1. Open XTOOL IP900:
   • Select IMMO Reset-Volkswagen > Passat CC (2008–2017).
   • Choose"Get CS Code”and load the saved EPROM file.
   • The tool will automatically display the4-digit PIN code(required for key programming).

Step 4: Program the New Key

1. Prepare the Key:
   • Place anew ID48 transponderin thekey programming coil(connected to the KC501).
2. Start Programming:
   • Select"Make Dealer Key”and enter the extracted PIN code.
   • Follow on-screen prompts to complete the process.
3. Verification:
   • The tool will confirm"Success”once the key is programmed.

Final Steps

• Reinstall the EPROM: Solder the chip back onto the ECU (if needed).
• Test the Key:
  • Start the vehicle to ensure the new key is recognized.
  • Verify remote functions (lock/unlock).

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