2008 Prius no start

Code is P0AA6 – P-zero-A-A-six. Once the code is cleared (which happens when you remove the 12 V power) the car will drive normally for one drive cycle but the DTC P0AA6 returns during the drive cycle. When the car is turned off, it will not restart unless you do the battery trick– so you rinse and repeat. Eventually, bad things could happen to the battery when the bad module(s) give(s) up.

It looks like the ECU disagrees with the previous owner. I know who I'd believe. The thing with leaking modules, it can be very hard to spot visually. Chances are you will be able to find the leaks with a mega Ω meter ("megger"), or even a regular multimeter looking for voltage to the case. When you have leaking modules, the leaking module(s) need to be replaced and the case needs all modules to be removed, the case scrubbed clean of any electrolyte and thoroughly dried. All modules should be cleaned thoroughly as well. Then the good modules plus replacement modules need to be reinstalled in the case.

$500, maybe $1,000.

 

I believe a P0AA6 has a few subcodes possible, so it's not necessarily the HV battery causing the insulation problem. Could be the transaxle failing or inverter failing or the AC compressor, or the HV cables damaged under the car, etc. Getting the subcode is the first step toward determining which area of the car is triggering the code.

The costs of repair are obviously vastly different depending on the source of the trigger.

 

So true. Amazing how blinkered one can get.

 

Seems like the seller isn't telling you the whole story.

 

Sounds like he's willing to wait for a sucker.

 

whats the kbb value?

 

may very well be