Hey all, I have a 2017 C7 stingray. 32k miles on the dash. Finally got around to installing headers and have been making lots of revisions and writes to the ECU.
I noticed that after each write, the center screen would reboot, music would stop, bluetooth would disconnect, etc...which makes sense. I then turn the ignition off and on before starting the car.
One observation is that flashing/logging the car messed with the clock. Otherwise, nothing crazy would happen.
Today my screen stopped working after writing a new revision. Total pitch black. No bluetooth, no radio, no clock. Nothing.
I didn't have VCM Scanner running yet but the screen went pitch black shortly after writing to the vehicle.
This tells me that the HMI (multimedia) module is bricked/dead or the screen is dead.
I did, however, also notice that the footwell gets much hotter after adding long tube headers. The metal frame under the dash gets so hot. Almost too hot to touch. I wonder if excess heat is getting into the cabin and caused one of the two units I mentioned to fail.
Or it may all just be coincidence and the HMI was going to fail anyway, because it is known to be failure prone...
Anyone else ever observe something similar based on these conditions?