Security Access protection system is used on the MQB2020 (MQB37W) platform used by VW Golf VIII, Audi A3 8Y, Skoda Octavia A8, Seat Leon MK4 and others. Here is the instruction of SFD unlocking on the new Volkswagen Audi group vehicles with the SFD protection. This is the process you need to follow and this is just an example.
We’re just going to unlock this gateway using Topdon Phoenix range diagnostic tool (Phoenix Smart, Phoenix Max, Phoenix Plus etc)!
Launch X431 PAD V/PAD VII and Thinkcar Thinktool series will also do manual SFD unlock, they are similar to Topdon coz the software is similar.
We will use it as an example ABS module common one for needing to unlock this SFD Gateway on these vehicles.
After scan the vehicle, enter 03 Brake Electronic module.
Select SFD(Vehicle Diagnostic Protection) Activation function at the bottom.
We’ll go Manual SFD activation. We also need the VIN number and the module. We are in the 03 brake Electronics module.
Copy that original request code.
We go to browser, go to vaglogins.com.
It appears to generate one-time SFD unlock tokens for this exact scenario. They operate on a “credits” system, but you can buy 25 credits for 25€, (about $27) and 5 credits gets you an SFD challenge response for one module, whereas 15 credits gets you unlimited offline challenges for 60 minutes for a specific VIN.
They also offer an online coding generator for 10 credits. You sign up/sign in and buy tokens.
We’re going to enter the VIN number to activate Vin and then we’ve got active VIN number.
Then paste the original code we had copied earlier. Select module. 03 module is we are in.
It take up to 30 seconds to generate this code so just be patient.
We are now got the calculations. The SFD unlock request code is here.
Select All and copy, then head back to Topdon software, select SFD Token.
Then paste the SFD unlock request code.
Hit Activation Control Unit.
Topdon has now unlock the SFD gateway on this vehicle for the ABS module.
You are able to wind back the calipers and run other special functions on this car.
With Thinktool you can also manual unlock SFD gateway.
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