Audi A1 ABS/ESP Failure: No Brake System Access.

Hello everyone,
Since I changed the tires on my car to my summer tires , the ABS, ESP, and TPMS unfortunately turn off after a few meters.

While attempting to read the fault memory using VCDS and the MicroCAN adapter, I unfortunately cannot access the brake electronics.

Does anyone have any ideas what might be causing this? The fuses for ESP and other components on the driver's side fuse box inside the car have been checked (all are okay).

I suspect the cause of the failure is a faulty wheel speed sensor. However, I would like to read the fault codes before I start replacing parts randomly.

I would appreciate any feedback or experiences you might have.

Best regards,

Hi,
Please post an Autoscan update.
Do you also lose access before the indicator lights turn on?

Incorrect diagnostic system, MicroCAN is not compatible with the A1 model. See also:

http://shop.dieselschrauber.de/vcds-diagnosesystem-microcan-p-221.php

Thank you for your feedback and the information.
Sorry, I should have realized myself that the diagnostic system wasn't the right one.
Then I guess I'll have to go to the dealership and ask them to read the error codes.

Regards,
Michel.

Here's another question from my side: Which diagnostic system could I use to read the data from my A1 (8x) and gain access to the control units?
On other websites, I read about a VCDSpro basic kit.

Currently, it's the HEX-V2.
http://shop.dieselschrauber.de/vcds-hex-v2-p-329.php

Best regards, Rainer.