The error actually clears when I wipe out the fault memory but comes back. I am yet not sure what makes it pop out - either locking/unlocking the car or else as a few times a tried to monitor when it will pop out (Android DeepOBD app can basically read fault codes in real time) but I was not able to pinpoint something specific.

If you have a knowledge in ISTA, do you know how can I interpret the wake up analysis tool? I checked it yesterday and it says that CAS/FRM woke up the car quite a lot but it also says that when the events are in series, they are probably caused by waking them up by simply locking/unlocking the car, opening doors etc. I am not sure how to tell which wakes up were not supposed to happen.