I've had my Tacoma for almost a year, and I've been through the battery it came with, and another battery from autozone. Both were placed on a computer and came up with the "bad battery" reading, but that's not my concern. My concern is that the brand new battery I put on there two months ago has already died. That's why I thought it was the alternator, because I didn't think I new battery would be dead after two months. Given, I do live in Texas and the heat here is beyond bearable.
There is a light in my dash that "fades" on and off, it's the symbol of a battery, in the bottom left hand corner of my dash. It doesn't stay on constantly, but kinda flickers on and off.
Anyone with similar problems? I've upgraded the battery for now and the truck is running but I'm afraid I'll be replacing the battery in another 2 months if it's not the battery after all. I've had two diagnostics machines tell me that the alternator is running properly, so the only other thing that comes to mind is a short in my wiring system or a bad cable.....HELP! Any advice will be taken into consideration. Thanks!