Since the winter season began, I have been encountering the P060A error code in my 2015 Mercedes CLA 250, especially when temperatures drop below zero. I know this error is related to the internal control module, but I haven’t been able to find the cause. My car has approximately 120,000 km. I have always had it serviced on time.
It’s related to PCM and lately I wrote an article about this fault code.
Click the link below and read it. I hope it will help you to solve issue.
P0606 PCM/ECM Processor Fault