Prius (2004-09) :: Red Triangle Of Death (P0A80) - HV Battery ECU?

I've pulled the HV battery from my 2007 Prius with 144, 000 miles given recent Red Triangle of Death (P0A80) and looking to replace battery pack but want to rule out the ECU. I've searched the threads and found mention of testing the ECU but wasn't clear.

How to test the HV Battery ECU in or out of the car? Using a volt meter and light bulb, etc......I would really like to rule out the ECU before putting dollars in a rebuilt battery pack.

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Prius (2004-09) :: Red Triangle Light With CEL Code P0a80

Was driving home from school yesterday and my 2005 Prius turned the check engine light on and the red triangle light. Plugged into the scan tool it read: P0a80. I have a hybrid battery ordered. It should be delivered on Tuesday. How long can I get out of this failing battery before the car is undriveable? The Prius is my only vehicle and I don't have a problem with installing the battery, I just I'm wondering if the car will just drop dead on me before the battery gets here? The car appears to be driving normally with no loss of performance or MPG.

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Prius (2004-09) :: Warning Triangle Came On And Scanner Show P0A80 Code

My Prius has started throwing the code P0A80, it all happened after I went away for work and left the car in storage for 15 days, during that time I left the OBD scanner plugged in and it drained the 12v battery, a quick jump start and it was back up and running.

While I was backing it out of the driveway the warning triangle came on and the MFD said "problem" the scanner showed the P0A80 code. I thought that was odd, but maybe related to the flat 12v battery and self discharge of the traction battery so I reset the code, it drove normally to the shops. When I restarted it and started to drive it threw the same code again.

I then installed techstream on my laptop to try and get some more in depth answers but was having trouble getting that running on Windows 8. So overnight I disconnected the 12v battery and would try again in the morning.

I got techstream working and connected it up to the car, connected the 12v and started it. While I was configuring techstream to graph the pack voltages I noticed something odd, the engine was being loaded and unloaded in 2 second cycles, and at the same time the inverter was whining as it does this. I was thinking maybe it's doing some sort of charge and measure cycle since the ECU's have lost any pack data due to the power loss of the 12v battery?

It ran like this for 20 mins or so and the engine stopped, techstream showed pretty normal cell voltages, I couldn't see any wild differences between the cells.

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Prius (2004-09) :: Check Engine Light / Red Triangle And Code P0A80

I'm guessing that I need to repair or replace the HV battery. But I'm not sure.

Today I drove for about 20 minutes with no issue. 10 minutes later, I got back in the car to drive again. This time, after about 20 seconds into the drive, a string of dash lights came on; Red triangle, VSC, Check engine.

The VSC light went away. But the red triangle and check engine light are still on. So, I had the trouble codes pulled by a mechanic, and the code P0A80 was returned along with a statement reading 'replace hybrid battery'.

Should I take this at face value? Or look for something else first?

2007 Prius - 150,000 miles

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Prius (2004-09) :: 2006 - Got P0A80 OBD Code?

and says replace hybrid battery! Its a 2006 w/ 249,000....say it ain't so?

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Prius (2004-09) :: 2006 - P0a80, C1310 Keeps Coming After HV Replaced

I have a 2006 Prius, It has 165k miles. Recently it gave me a code to replace hybrid battery pack, I read this code with my scanner from HF. I have changed out a battery pack with replacing the bad modules before so I am not a bigger with the system. I took out the pack and checked and it seemed like all the modules are in the 7.8 range. This was confusing since the code reader was saying to replace the battery pack. I put it all back in the car and tested it again and got the same results. It seems like the HV system is not being recharged any longer. It seemed odd, normally when I remove my foot from the gas the system shows the car regenerating power.. Now when I step on the brakes I only see that. The system does charge but randomly it will drop down where there are 1 to 2 bars left and then charge back up again.

P0a80

C1310 malfunction in HV system (when i read about this people say this is a ghost code that comes up from the battery pack.. but maybe not in my case.

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Prius (2004-09) :: 2006 - Got Error Codes P0A80 / P3019 / P3000?

Yesterday I got the "red triangle" and check engine light along with these 3 codes:

P0A80 - replace hybrid battery pack

P3019 - battery block 9 becomes weak

P3000 - battery control system

In April of this year I have the entire battery replaced, in September I got the triangle again and one cell was replaced under warranty. My warranty is good through April 2016, however I'm afraid that this new code P3000 is going to be something not included in my warranty.

What could potentially be wrong? This is a 2006 Prius with approximately 208,000 miles. I'm not sure this is worth it anymore especially if I have to keep putting in more money.

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Prius (2004-09) :: 2006 - Red Triangle At 73 MPH In Neutral

I just bought a 2006 Prius about a month ago (57K). I love the car and have been educating myself on all things Prius, This car has also made me change my driving style quite a bit. I am getting around 50 MPG (combined) and very happy about it.

I have been using some of the hypermiling techniques to get the mileage, one of the things I do is to put the car in Neutral (to emulate the Glide portion of the Pulse and Glide) especially when coming down a gradient. I was bit concerned about using the Neutral gear and called Toyota Corporation to get a clarification, The answer I got from Toyota was - there is no technical issue, however they do not recommend this be done for safety reasons.

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Prius (2004-09) :: 2006 - Beep And Red Triangle?

My 06 Prius with 130k miles just starting to briefly (1-2 seconds) show "PROBLEM" on the MFD and beep and sometimes show a red triangle.

This only happens when I am going down hill on a tight curve when going fast. This never happens going up hill (since I am generally going slower) nor on flat roads. Since this is my normal commute road and I have not changed the way I drive for several years, I am surprised that this is now occuring.

Some possible theories: oil is low - I will checksome level sensor is complaining? some tire rotation sensor is complaining?

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Prius (2004-09) :: 2006 - Check Engine And Red Triangle

Took the Prius to the crosswalk today, one mile roundtrip, everything was fine. Came home and being lazy I put it in the driveway and locked it with the windows up instead of my normal in the garage with the windows down. At close to 100 degrees outside the interior was blistering hot when I went to start it and head back for my afternoon shift. The dash lit up like a Christmas light display. Brakes, red triangle, vsc, check engine, etc.

Put it in the garage with the windows down and let it sit for a couple of hours to cool a bit. Started it up and let it idle for about 15 minutes; everything reset except the red triangle and the check engine light. Drove it down to the dealer but they won't have a diagnosis until tomorrow. It handled the drive just fine like normal.

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Prius (2004-09) :: 2006 - Red Triangle And Loss Of Power

Purchased a used 2006 prius with ~180K miles on it from south bay a few months ago. At the time of purchase the guy warned us that it 'ate' motor oil.

After 2 months of driving without issues (driven couple of hundred miles), on an uphill road the engine overheats and throws the red triangle, vsc and check engine lights on the dash, along with loss of power. After cool down I check oil level and sure enough it is low, since this is on top of a hill we essentially coast all the way back home without any real issues. Once home I top up the oil. I do a test drive around the block without issues (no loss of power) though the check engine/red triangle/vsc lights are still on. But after I take it for a longer drive the loss of power returns.

Since my bluetooth obd2 connector wasn't working I borrow one from my friend and try to get a read. Unfortunately the thing puts out no obd2 error codes. Living in the bay area I apparently cant just take it to an autozone, to get code readings. I take it to meineke auto repair, they too are unable to get an obd2 read, and want to charge me $100 for a full reading, which I decline.

I do a few diagnostics steps including 'resetting' the computer by leaving it off of the 12v battery for a few mins, this clears the red triangle et al on restart. I do a test drive, at first everything is working just fine, but after about 10 mins or so of driving the red triangle/check engine/vsc lights returns, along with loss of power. (under ~20 mph only, cant go uphill).

Take it to a mechanic and they come back with code: "APOA92. Trans Axel issue - MG1 performance is off. Measured torque is different than executed torque, enough to be a problem. 95% sure it is the transmission." I still haven't checked the 12v battery.

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Prius (2004-09) :: 2006 - Intermittent Red Triangle Of Death

Our '06 has 68K on it. Last weekend I changed the front bumper (just cracked from small accident last year) and changed the oil. Used Mobil 1 5/30 and a Fram Oil Filter.

After about 125 miles of driving intermittent Red T.O.D. Always when ICE is running.

Oil level is OK - not loosing any oil. Filter and bolt on the pan are fine - no leaks.

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Prius (2004-09) :: Code P0A80 - HV Failures

My 2006 is doing some weird things. I have gone through a couple of HV failures and each time if I got the P0A80 code there was always an additional code telling me what was wrong. Not this time. Some times the battery will sit there while it shows that it is being charged and not take a charge. i.e. not come up off the pink bars, Sometimes it will charge all the way up to green and then fall off dramatically This is really strange because it is not showing any other code other than a crank cam sensor. The 12 volt battery seems to be ok.

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Prius (2004-09) :: HV Error Code P0A80

My car has been fine with no changes besides tires last week, its a 2006 Prius and yesterday I got lights on my dash, went to auto zone for a read out and got an HV error code. I was wondering what is the most affordable route for my car to get repaired. I don't notice any mpg differences and everything still charges and recharges as if the errors don't exist.

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Prius (2004-09) :: 2006 - Triangle Of Death Came On, Battery Died

Got the triangle of death after letting the car set during my 2 week vacation. P0A80 and Battery block is 14.17V all the rest above 15.35. That's a lot of money to repair a car. Not sure if I want to cut my losses and move on or replace it and drive as long as I can.

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Prius (2004-09) :: 2006 - Red Triangle, VSC, Check Engine Light Came On

My beloved 2006 Prius with about 117,000 miles on it needs to go to the shop (I'm not a DIY mechanic). As I was driving home yesterday from work, all of the sudden the red triangle, VSC, check engine and a little car with an exclamation point on it on the display came on about 2 miles from home. There also appeared a kind of wind sound from the passenger rear area when this happened.

I drove it home and pulled into the driveway. Lights, radio, etc all work. I stopped it for about 30 minutes and then started it up again to pull it in the garage (all warning lights still on).

My question is can I drive it safely to my wonderful mechanic's shop about 10-15 miles from my house (assuming it starts)? I don't want to further damage anything.

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Prius (2004-09) :: 2006 - Red Triangle With Exclamation Point Staying On

I have the red triangle with the exclamation point in it. What it can be? I have a 2006 Prius. It still seems to drive ok. I have parked it though and have an apt Monday morning at Toyota. (They didn't have a Prius tech in today) When I first noticed the light it would come on and go away. Now it's staying on.

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Prius (2004-09) :: 2006 - Red Triangle Light And Headlight Icon

My Toyota prius 2006 get red triangle light appears when I start the engine and it disappears when I drive the car. When I stop the car, it comes back again. The warning light is like in the picture I attached.

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Prius (2004-09) :: 2005 - P3019 Along With P0A80 Pulled Over

I've a 2005 Prius with ~193,000 miles. It recently started throwing codes P3019 (Battery Block 9 becomes weak) and P0A80 (Replace Hybrid Battery). Codes were pulled with a laptop running Techstream and a mini-VCI cable.

Figuring I had some time, cleared the codes and only drove the Prius for short trips. At first things were OK, but of course the codes reset after a few days, and pretty soon they were permanent. And the car had very little power, battery fan running on high.

Then when slowly accelerating from a traffic light (there is no rapid acceleration in a gimpy Prius), there was a "BANG" noise, really loud. It sounded like someone tossed an M-80 at the car. Pulled over, didn't see any damage, though there was a strong "fireworks" smell like gunpowder outside the car. Started the car, it fired up fine, drove it home.

After a couple more weeks the car refused to start, wouldn't go into "Ready" mode. So finally I took the interior apart and opened up the battery case. Here is what I found (pic attached).

Moral of story - don't drive too far when you get the P0A80.

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