Car died (for a day). P2140? Or alternator/battery?
So I was in stop/go traffic the other day, first the P2140 shuts my carPC off, then my power windows stop working and along with my other electronics. Then the battery light came on and my car almost died. I immediately pulled over and unplugged the computer's AC cord thinking that might help the car stay running. I've had this same thing happen when my alternator died a year or two ago (before I had the carPC), so normally it would be an easy diagnosis for me, but here's why I'm confused.
I barely got my car home, parked it thinking it would be completely dead in the morning. But it started right back up without a problem. I've been driving it for the past few days (still with the carPC unplugged) without a problem. I plugged it back in today (worried that the extra drain would kill it again) and drove it throughout the day, but again without a problem.
At first I thought the P2140 died, and the computer ate my battery, which is why my car died. But now I'm pretty sure the P2140 is fine since everything carPC related is working fine.
I guess I just need a second opinion before I take the Lexus into a shop and spend money on a new alternator or battery. Anyone have any thoughts what would have happened?
LOL did a solar flare interfere with my cars electronics or something!?