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Cruise Control Flashing when engaged


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We recently had a customer who converted to a Multi Tune and after converting the vehicle the cruise control would just flash (on the dash) when trying to engage cruise control. The way to get it to not "flash" was to start the car with the brake on. Here is an extract from the workshop manual that states they should all do this:

image.thumb.png.ac115684c85e42d670cfa378d734c53a.png

Now this is not what the original car did but resetting it back to stock and this behaviour was still happening. 

The resolution for this is to reset auF2648 back to the stock value. We found it had been changed from 3 which works on a MK1 to a 1 which works on a MK2. auF2648 is the Hardware Configuration of the Brake Switches and can be found under the "System Switches" Navigator entry: 

image.png

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