Sounds scary but I did read that somewhere. About how long do you need to touch them together? Does this clear all personal settings(e.g. radio stations)? Just curious because I tried this and code came back, settings remained. Thanks!
So it seems to me that there must be more to this story than just some old codes that need to be cleared. There have been some updates over the years and I'm struggling to understand why a dealership wants to reflash your ECM just to clear codes. My guess is that some of these codes are resolved by an updated calibration.