Join Date: Jun 2013
Location: West Grove, PA
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I don't know exactly how long it takes, which is why I usually just disconnect the battery before I go to bed and then reconnect it the next morning.
Technically, you can disconnect both wires from the battery and touch them together for a few seconds to drain all power from the system, but I have also seen warnings saying that could possibly cause issues. Personally, I've done it a few times without issues, but the safest way is just disconnect the negative cable overnight. That way you *know* the system has been reset and don't have to worry about damaging anything. 15-20 minutes may be enough - but like I said, I'd rather know for sure that things have been reset, which is why I just like disconnecting it overnight.
Of course, there is always a chance that you problem is much "deeper" and it wasn't actually the wiring. The wiring is just the most common issue, which is why it's usually the first thing you try. Based on your description of it occuring when turning at low speeds, it definitely had the symptoms of bad speed sensor wiring - especially since you had already replaced the hub, etc...
At this point, I think it would be a good idea to get the codes read as well - they may give some hints as to what the real problem is. Obviously, if there is any sort of warranty on the car, I'd let them figure it out. :-)