WIKI

Requirements

The procedure consists of a few steps described below, please make sure you strictly follow the instructions.

Step 1: Reading the Dashboard module and Preparing the Spare Key(s)

  1. Connect the AVDI to the vehicle’s OBDII port and turn the ignition “ON”.

  2. Open the VAG Online and select Key Learning > “IMMO5C MQB”

  3. The dashboard type will be identified. The one supported is - VDO Immo 5C with Hitag Pro key type.

  4. The software will prompt you to select the number of working keys. It will also display the number of already programmed keys.

  5. Then place the available working keys on the Emergency slot/Antena of the vehicle one by one.

Note : If the software is closed after successfully completing Step 1, you can resume directly from Step 2. Navigate to RH850/V850 > RH850 > Dashboard/MCU type according to your module, and proceed with the reading process.

Step 2: Reading “On Bench” with ZN085

  1. Dismantle the dashboard from the vehicle and connect the CB501 cable as per the appropriate wiring diagram.

  2. Select the correct instrument cluster in the software and check carefully the wiring diagram.

  3. Read the instrument cluster data. Upon successful reading, the software will notify you that the Immo data is stored in the crypto core.

  4. Click the “Write MCU” button, then confirm by selecting “Yes” to proceed with the spare key programming.

  5. Once the writing process is finished, return the capacitors and unsolder the CB501 cable. The “Key Learning” button at the bottom right will become active. Click the button to proceed to Step 3 - via OBDII.

Note : If the software is closed after successfully completing Step 2, you can resume directly from Step 3. Navigate to VAG Online and select Key Learning > VAG Immo 5C proceed to key programming via OBDII

Step 3: Key Learning by OBDII

  1. The software will remind you to return all the capacitors and unsolder the CB501 wires, then install the dashboard back into the vehicle.

  2. Start the Key Learning procedure by following the instructions.

  3. Ensure the ProTag is still connected to the laptop.

  4. The software will first prompt you to connect to the OBDII, insert a working key. At this point you can just read the Slave CS codes or continue forward with the Key Learning procedure.

  5. You will be asked how many new keys you need to program and then you should insert the new key(s) in the Protag one by one, in order to be prepared.

  6. On the next step, you should select the total number of keys to be programmed, including the new and the already existing keys and press Next.

  7. Turn Ignition ON with each key within 2 minutes (follow on-screen instructions). In case the car is keyless, touch the emergency antenna with the key and wait for the process to finish.

  8. At the end all the programmed keys for this session will be saved in the vehicle’s immobilizer.

Note : If the new keys start the engine via transponder (emergency slot) but the Remote and Keyless functions are not working, please disconnect the vehicle’s battery for one minute. Then, repeat Step 3: Key Learning by OBDII, without preparing the new keys again—simply select the option to relearn the existing keys, (as the new ones have already been prepared).