All ECUs have a unique part number which can be used to tell them apart from each other. When writing to an ECU it is important to always write a bin file which matches the part number. This ensures that the ECU is only ever written with data that is compatible with the intended vehicle.
Some ECUs have the part number written directly on the label (especially older ECUs) but many others (eg. 2020+) do not show the ECU part number at all on the casing. This means that we need to find the ECU part number by reading it from the ECU directly with the Woolich Racing Tuned software software.
This article relates to BMW ECUs where the ECU Part Number is NOT visible on the ECU housing.
As the BMW ECU Part Number is an internal number written into the ECU file, the only way to know what you have is to open a similar file and then read the ECU part number as shown below.
Here are the steps to follow:
- Click on 'New' in the main window
- Select a bike with matching manufacturer, model and year
- Select any of the ECU Part Numbers shown and click the 'New' button
After you click on 'New' you can read the ECU Part Number and Serial Number as shown below:
Once the ECU Part Number is read out, you will see one of two messages:
- If the ECU Part Number is already supported in the WRT software then you will be asked whether you want to open the corresponding stock bin file
- If the ECU Part Number is NOT supported in the WRT software then it will fail to read the part number. In this case you will need to read the entire ECU and send it to us so that we can add support for it to our WRT software.
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