2008 Prius with new 12 V battery won't shift; lots of warning lights

Hi volt leak in trans is not intermittent at least have not seen that here. It also will have an accompanied bad shudder mostly felt in the front passenger wheel area. That is because one or more of the 3 phase windings is comprimised and the power delivery to the motor is out of phase. You basicly have mg2 shaking violently., If you have a trans hv leak failure it is very noticeable as driving quality is immediately greatly affected.
A leaking winding is because somewhere in its life it was driven extremely hard and one of the windings went over current and blew out. Blow out meaning the winding got so hot it's conformal coating failed exposing the conductor. This does not repair itself. There is no winding/fluid interaction but reports here have said fluid smelled burnt when removed with a trans winding blowout. When a winding blows out it's a pretty good scorching of the winding pack. Even a pinhole will blow out a winding as you have 500 + volts there at very high current. It blows out high voltage flashover and it's done.
There's many youtubes about it and lusciousgarage garage repairs a lot of those.
Extreme hills a lot of weight & Low hybrid battery charge & high power demand by floored gas pedal is the perfect storm to blow out a winding. Your basiclly stalling the motor under extreme load.
Current draw goes off the chart. Toyota was very concerned about over rev and high current draw
On mg which is why traction control is always on. You can switch it off in inspection mode but it has Valera warning on the mfd not to drive the car in that mode.

If the car immediately throws master caution and the turtle on the mfd and no other signs of failure or drive ability it is not the trans. If the car starts to shudder bad and won't drive and has all those dtcs logged it's a tow home and it's the trans.

Hi volt leak in the battery is sometimes very intermittent. Ground fault is highly monitored. It's the top of the master caution list. Slightest conduction from leaking electrolyte to ground in the battery will trigger that circuit. You can clear it and it may be ok for a while.
Leaking electrolyte is a constantly changing thing. That continues to get so bad it sets that code all that time.

 

I'm gonna run through LG's diagnosis checklist a little later. Drivability on my car is great if the codes get wiped... it comes back on about 2 mins into the drive and drives normal till i turn her off.

 

If during the DTC logged the car is driving ok it's not the trans. If u can clear the codes and motor on down the road just fine it's not the trans.
That is classic hybrid battery cracked and leaking electrolyte and has been leaking fir a while and very bad corrosion causing tiny current path to ground.
Take the battery cover off and check it out. Look for green corrosion under the nuts and on the buss bars.
Hundreds of posts about it on this site.

 

I am planning on checking her out tonight, the only reason I immediately pointed to the transaxle is because most post for the p0AA6 info codes 526 613 point at the transaxle

 

Good luck. May just need a battery cleanup. How's the battery been? Going into purple real fast when stopped or fast charge and discharge or mileage tanked?

Based on what I have seen here very few trans failures winding blowout wise. Seen a few with failed diff bearings which is usually lack of maintenance and beat hard.Basicly it's an incredibly reliable transmission.
Really a spectacular piece of engineering. And when it fails you will know it. If it loses a phase it will feel like the trans is about to fall out,

 

Pulled the battery, uses a meter to test each module they are all coming in at 7.97 . Corrosion is ... you guys tell me... is this enough throw those codes... i'm gonna clean up all these contacts and throw this beast back in in the morning... I'm not trying to hijack Suzy's post so if you could shoot me a link to a solid rundown i'll bow out of the convo... Thanks again!

 

It's really hard to argue with the sub code that points to the transmission. When a transmission winding gets bad enough it will feel and sound like there must be broken metal being ground up inside.

Steve from Phoenix Hybrid Batteries has seen dozens of leaky Gen 2 batteries. In MN I have seen just one. It's a heat thing. All of the leaky Gen 2 modules cracked inside the small cavity next to the mounting bolt insert. The fault is too small to see. It takes bubble soap and an overcharge to spot. A voltmeter can work also. Gen 2 modules do not leak at the terminal's like the Gen 1 batteries did.



Brad

 

Thanks Brad,

Yea I cleaned all the brass connections in the batteries and my multimeter said all the modules were running at 7.97.



I threw her back in cleared the codes and it took longer but they returned... at first the 613 didn't land but then on a second attempt it showed up . Like i said car seems to be driving fine.... autozone said the battery was good but i think im going to replace the 12v for good measure... it seems to lose juice pretty quick when im troubleshooting this stuff. I've had them charge it twice in the last two days.... thats my next step... could a 12v being messed up cause the computer to throw such a specific transaxle code? i've been searching around for a while...

Thanks everyone

 

After disconnecting the 12 volt battery it always takes two tries to start the car.

Did you read the code before disconnecting the 12 volt battery? The snowflake icons will link to the freeze frame data and the sub codes.
Try again next time the triangle comes back.

Just a quick Google search.

 

Yes you'd need to bring your husbands laptop, load the virtual windows 32, plug it into the car, and read the codes. Is Toyota Techstream on the virtual machine?

 

I just had to do this so i made a post in another thread here it is

 

Great write up

 

To the left of the DTC there is a light blue icon that is suppose to look like a snowflake to represent freeze frame data. Not all DTCs have freeze frame data, but P0AA6 does. Click on the snowflake and it will open the freeze frame data. Look for the lines "Data Code x" where x = 1-5. These fields contain the sub-code(s).

Here are two images:



Hope that helps.