If Your BMW has a check engine light on the dash then I recommend that You use an OBD II scan tool to see what the problem is. An OBD II scan tool can read the codes that are stored in Your vehicle's ECU when it detects a fault. If You have a code A0B2 then it means that there is a car access system fault. Usually this means that there has been a problem where the CAS has lost power at some point. That usually means that there is a problem in the fuse box. I would recommend checking the fuse to the CAS to make sure it is in tact. If that is not it then You will want to check the wiring for any shorts between the fuse panel and the CAS.
Patrick V
July 30, 2020
Code A0B2 in a BMW means that there is a problem with the CAS supply terminal
Arve s
January 22, 2024
The cas module is the biggest of them ? Lying under the spaire tyre ?
I have this code on my BMW 320d but got no ignition lights steering lock won't come off steering lock light is red
The Questions and Answers on this page are the statements and opinions of their respective authors and not VehicleHistory.com. VehicleHistory.com
does not research or authenticate any of the Answers provided.