Everytime I read my 2013 Cadillac CTS-V ECM i get these codes:
P0606: ECM/PCM Processor, and P0607: Control Module Performance
I clear the codes and get a permanent code that goes away after a couple of drive cycles. I can flash anytime I want and never an issue. It's only anytime I read it.
Why?
P.S. It's not voltage related. I have the correct voltage at rest. Already verified that.