I have a 2013 Prius C with only 66k miles but apparently some rodents got into the hybrid battery and elsewhere and chewed s**t up quite a bit. That was discovered after a control module and wiring harness were replaced for $1,500 which both tested bad. I'm still getting the "check hybrid system" on display and a PA066 fault code with Dr. Prius app, though it does go away on occasion for anywhere from a couple days to several months after disconnecting the 12v battery and re-booting. I'm assuming that the hybrid battery is failing and have been looking at alternatives to an OEM replacement but am getting shy after reading reviews and other input regarding options like NexPower's sodium ion, etc. I got a price from a Toyota mechanic who says he can get me an OEM for $2,480 and $300 to install. I'm wondering if that's a worthy deal these days. Any input appreciated, thanks!
Yeh, I think that was a typo, but I'll need to check it in the AM, getting too close to bedtime for an old fart.
It sounds to me like the current problem is a continuation of the same problem you reported one year ago in this thread, https://priuschat.com/index.php?posts/3473541
For your reference last month I called a few dealers in my area for Gen 3 Prius (Not Prius C) OEM traction battery and installation prices. The traction battery varies from $2600 to $4000, and installation from $1200 to $1800. I just built a grid charger for my Prius and Prius C. In that process I installed charge/discharge cables to both traction batteries. I will say for a first timer, it takes about 3 - 5 hours to remove and install a Prius C traction battery. It may only take half of that time if you do it again (or for a Toyota Mechanic). So $300 installation is reasonable.
That is correct! I almost forgot that I'd posted that. After cleaning the fan real good all seemed ok for several months then I got the hybrid system warning again. Ended taking it to Toyota mechanic who does after hours at home work. He had the real deal Toyota scanner and initially told me a control module (maybe ECU?) was bad and could not further diagnose until I replaced that, which he did. Then the scan said there was a fault in the wiring harness to the inverter. That was replaced but didn't make a difference. That was when he uncovered the rodent damage after poking around the hybrid battery. He said it looked pretty bad in there and was able to patch up a couple wires that were chewed on but said without removing the battery and tearing it all down he couldn't do much more. We left it at that for the time being till I figured out what I wanted to do and I've been driving it modestly since then, all the time with the hybrid system warning display. Couple weeks ago after stopping at a gas station the car would not start again. I had a 10mm socket in the hopes that if I pulled the 12v battery cable off it might reboot. It did and the warning is gone and hasn't come back on since then. But I feel pretty certain that's not the end of it and so I'm shopping around for a replacement hybrid battery, and here we are.
I'm curious if anyone has dealt with best hybrid batteries.com..... I searched the forum but didn't turn up anything. They have the battery for $1,450 (refurbished I'm guessing) with a 3 yr. warranty.
To narrow down the problem that you are having with the P0AA6 trouble code, you need to find out the INF sub codes. You need a scanner that can read the freeze frame data for the P0AA6 code. The INF codes are included inside the freeze frame data. The Toyota mechanic that you are using should be able to find the INF codes for you. The problem may not be at the hybrid battery, but it probably is. You do not want to assume the hybrid battery is the problem until you determine what the INF codes are. There should be two INF codes. One will be 526, and the other will be 61x, where x is number 1, 2, 3, or 4. The second 61x code will tell you the area of the car that the problem is located at. So, ask you mechanic to give you the two INF codes and come back and post what he found. Search this forum for P0AA6 and the INF codes associated with it. There is a lot of information available. Edit: Where in PA are you located at.
Thanks Brian, I will check with him on the INF codes and get back to you. I'm about 60 mi. NW of Pittsburgh.
If you lived close to me, I would help you with reading the codes. You are too far away (3 hours) for me to do that.
