Step 1: You need to be able to read the original unit’s data. The procedure is executed in the vehicle by OBDII in most cases, however, certain units require specific connections described later in this user manual. Original ECU needs to be in place > open the ECU selection of the FBS4 manager, and press “Info” to establish connection to the unit, once the unit is read, press the “Save” button. This would read the required FBS4 personalization data from the ECU and let you save it to a file located on your computer.

Step 2: Install the replacement ECU in the vehicle.

If you are using a new or a virgin unit you can proceed to Step 4

Step 3: If you are working with a used donor unit, you will have to set it to virgin state. To do that, click the “Info” button to read the unit and check its’ unit status. Press the “Virgin” button to set the unit to virgin state. Procedure is executed via OBDII in most of the cases, but there are units that are not covered via OBDII, and you would have to go and do it on bench, there is dedicated procedure with all details explained.

Step 4: You would now have to press “Personalize“ button, which would ask you to upload the file, previously saved from the original ECU. Procedure is executed via OBDII and direct CAN Connection (Blue CAN wires) Once connection is established, a new screen will come up, make sure you select “standard” option!

Once done, you can press the “Info” button and check if the unit is personalized.

The vehicle should start normally, there is no need to “Activate” the unit, as it gets activated automatically after 100 ignition cycles, while it operates normally in the meantime.

Step 5: Last step to complete the procedure is to write the VIN of the vehicle into the unit by pressing the “VIN“ button, and a pop-up window will appear where you need to write the correct VIN to the unit