P1855 Software Status Monitoring Sporadically

Hey everyone, I'm new here on the forum.

I have a Passat 3BG 1.9 TDI with the Avf engine. I recently replaced the ABS control unit, exactly the same as my old one, and I coded it using the same method as I used with my old one, so all the data is exactly the same. He has identified the control unit, but when I perform a car scan, the error codes P1855 and P1649 appear. I would like to know why these error codes are now being stored in the memory. I would appreciate a response.

Best regards, Florian

Please set up the complete car scan here.

"The scan of the steering angle sensor is already complete, but the other 2 are still throwing errors into the fault memory."

guste100 wrote:

Please set up the complete Auto Scan here.

Please save the complete Autoscan as text and post it here. This includes both the detected errors and the dependencies to other control units. It is also possible to check whether you are using a legitimate VCDS or a pirated copy.

Greetings
Guste

Hello.

Is there already a solution to the problem?

I'm having the same problem. The error is in the engine control unit, and the ABS control unit cannot be coded despite using ODIS.
Maybe the OP is still active here and has a solution.

Best regards,

Simon

Do you have a complete scan of the vehicle?

Is the control unit new or a used one that you installed?

Are the part numbers from the control units identical, especially the index at the end, which is often very important?

Best regards!

Hello.


Thank you for your response. The scan is attached.

ABS control unit is the original. But it reset itself automatically.

Greetings