So yesterday morning I get home from the gym and as soon as I set it in park the car looses all power. The doors didn't even unlock. I turn he key and just three light come on, nothing else. I figured my battery was straight up dead because I was told to change it last time I got am oil change. I replaced the battery with a new one and still nothing. I let it sit for about an hour and I start hearing a slight clicking and a few lights were flashing but still no joy. Get a rental and go to work and I come home to what you see in the video below. Any ideas?

 

I've got nothing, but if it was my car I would take it to a Honda/Acura dealer and run a diag. I've never seen anything like that before.

 

check alt output and then test battery

 

Check the battery to frame ground, engine block to frame ground, and connections at the battery. If they are corroded to hell, clean them up. Make sure they are all tight.

 

Boom that's what it was, the positive battery cable had previously been replaced by the previous owner with some cheap cable from pep boys which is literally about to snap off from corrosion. Got the car towed to a Honda/Acura specialty mechanic here in Covina and all he did was pour some water onto the cable to clean it up and the horn started going off. Cleaned it a bit more and the car turned on.

 

I would replace that lemon instead of cleaning it.. Probably 20$ to ensure the problem will cease to exist.

 

That's exactly what I'm going to do, replacement OEM cable cost $35

 

I'm glad it was something so simple! I'd probably have a heart attack if I came out to find my TL acting like that.