Hi Dave
For me post initial BM3 flash that failed, I had a few successful flash attempts with the ECU communicating but since I replaced the battery and got the ECU back I've seen these new error messages.
I have yes, though no expert in ISTA very much learning through others and YouTube. Though in regards to the Flexray bus, I'm seeing that as the ZGM module which is built directly into the FEM module in the passenger side footwell
With work being busy I've not been able to look at the car since, but have ordered a few leads to attempt point 3 of yours
Rav
By
ravman2 ·
