Just checking……….. it did not sound like a good idea to me. Thank you.
From experience, I know that some vehicles require being driven X miles, after manually extinguishing the Check Engine Light, in order to clear the underlying codes. This of course presumes that parts repairs and/or replacement has also been done.
I've heard of it. It drains the vehicle completely of any residual power from capacitors and whatnot. In saying that, I haven't heard of anyone doing it in the last 20 years or so. Lol.From experience, I know that some vehicles require being driven X miles, after manually extinguishing the Check Engine Light, in order to clear the underlying codes. This of course presumes that parts repairs and/or replacement has also been done.
The mileage requirement is intended to ensure the underlying problem(s) haven't reoccurred. Otherwise, even if the CEL isn't illuminated, the dealer's diagnostic computer can still pull the underlying codes if the related issues haven't been properly attended to. My neighbor learned this from direct experience as we wrestled with an emission system issue on his Dodge Dakota truck. PA has an annual Safety and Emission inspection requirement, so there weren't any workarounds here; getting the truck "100% fresh" meant the repairs had to be done, and in a correct manner.
In 30+ years of DIY vehicle maintenance and repair, I've never heard of the battery cable idea. I'd encourage you to file any such conjecture under Internet Nonsense.
