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How to activate ACC with Volkswagen's one-car-one-code?

1 Answers

Lucas

07/30/25 5:35am

Volkswagen's one-car-one-code ACC activation can be performed by offline firmware flashing. Offline firmware operation steps: First, flash the activation firmware. Before flashing, there must be a static fault with component protection enabled. After flashing the activation firmware, proceed to the KS main station. Once the KS main station process is completed, separately select to unlock component protection 13. When the first stage is enabled, immediately unplug the 5054, then enter the self-diagnosis of control unit 13 to read the fault codes. If there is a static fault for "Component Protection GFA Key," it indicates success, and you can proceed to step five. If there is no static fault for "Component Protection GFA Key," repeat the third step. Use the engineer mode to select diagnostic session 13, choose the assembly line terminal mode, click OK, enter matching 13, find the activation code for Swap transmission, input the activation code, and save. Then, enter basic settings 13, select the release of the Swap function, and click the release button. If the result shows "Successfully activated," it indicates success. Function of ACC: During vehicle operation, the distance sensor (radar) installed at the front of the vehicle continuously scans the road ahead, while the wheel speed sensor collects speed signals. When the distance to the vehicle ahead is too small, the ACC control unit can coordinate with the anti-lock braking system and engine control system to apply appropriate braking to the wheels and reduce engine output power, ensuring the vehicle maintains a safe distance from the vehicle ahead.

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