Prius (2001-03) :: Red Triangle And DTC P3006 / Uneven SOC In HV Battery


Feb 17, 2016

Our 2002 just ticked over 200,000 miles and now has the dreaded triangle and DTC P3006 (uneven SOC in HV battery). It putters around, but the MFD is lit up with alarming icons. I cleared the code once, drove two miles, and turned the car off. On the way back home it came back on. We have owned it a few years, the previous owner was a mechanic who bought it at auction, replaced some of the cells and flipped it.

I can access the block voltages, but they don't point to any obvious culprit. I'm also using EngineLink with a PID list adapted from Gen 2.. so the formulas might not be appropriate. I checked both running and engine off, and both times Block 6 was slightly lower.. on the order of .02v. From what I understand, it takes .3v difference to throw the code. Of course the only real test would be under load.. so I don't know what to make of this. But, am I correct in believing that P3006 specifies a problem in block 6, or is that a general code?

The DeltaSOC is 51%. Again, I can't vouch for the math, but this seems pretty high.

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Prius (2001-03) :: Triangle Of Death Showing On Dashboard - P3006 Code

I have a 2001 toyota prius with 130k miles on it. 4 days back the triangle of death showed up on the dash board. The car would run fine for 3-4 miles, then brake light (on the dashboard) would turn on.

Sometimes the car would run fine with the brake lights, other times it would really slow down. Turning the car off and then on again gives me another 3-4 miles before the same story repeats again.

This triangle of death used to appear earlier too(6-7 month back), stay for few hours and then magically disappear, but this time I m not so lucky.

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Prius (2001-03) :: Triangle / Check Engine Light Popped On When Driving - Code P3006

I have a 2001 Prius with 210,000 miles. The inverter and traction battery were replaced last year. I started getting triangle and check engine lights about a month ago and the scan tool read p3191 p3006 p0300. The car would barely start in the mornings and the dash lights would be dim. I replaced the 12v aux battery today and all the symptoms went away. Driving home the triangle/check engine light popped on again and I stopped at Orielly's to use their scan tool. It now only reads P3006. I called a local mechanic who suggested to drive it a bit and clear the codes because the battery needed to equalize. Is this true?

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Prius (Gen 1) :: Code P3006 Appearing After Battery Replacement

I have a 2002 primus and got the p3006 code.

Engine would Rev and got all the lights. I figured it was the battery and decided to get a Dorman replacement. I replaced the battery but turning it on I would get the p3006 code after a few seconds. No lights at that point. I would drive about 10 miles and would get all the lights and a second p3006 code. I would clear the code and it would get rid of lights and car would operate normally.

Sometimes the lights would come on and the brake light would also come on and the engine would rev. sometimes when that happened I would get code p3012.

could the battery be OK and it be some other problem? I thought p3006 was the bad battery code.

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Prius (2001-03) :: Red Triangle After Hybrid Battery Replacement

well I saw one other thread on this topic but no resolution. I replaced the hybrid battery like the codes told me too on my 2003 prius and it now drives great but as soon as it start it shows a problem and the red triangle stays on. No check engine light, no codes, no driving issues just a red triangle. How to diagnose a red triangle when there are no codes.

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Prius (Gen 1) :: Codes P3006 And P3000 Displaying And Indicating Faults In Main Battery

I have a 2001 Prius with about 110K which I have owned since new. It displayed the hybrid warning light (as well as check engine) 2 weeks ago and I took the car in to the local dealer.. After a little muddling around they came up with codes indicating that the computer for the battery was going. I purchased that Part Number: 8989047030 Part Description: electrical, battery, computer H.V. SUPPLY. and the dealer installed that part a couple of days ago.

Now the following codes (and only these codes according to the dealer) are displaying and indicating faults in the main battery: P3006 and P3000.

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Prius (2001-03) :: Replaced HV Battery - Error Codes With Triangle Came On

I successfully replaced the HV battery on my own and it was so easy even this girl to do it! I drove the car about 300 miles when I got the triangle of death warning light again yesterday. I took my 2002 Prius to the dealer to read the codes but how to borrow a scanner (or whatever) from Autozone and do it myself.

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Prius (2001-03) :: Hybrid Battery Replacement - Warning Triangle Shown

I replaced my hybrid battery of my NHW10 a year ago. now recently it shows the warning triangle. Once it went off after a long drive but now its permanent. is there a way to Diagnose what is the cause of this? If its a Hybrid battery issue, will it go off if i replace the bad cells?

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Prius (2001-03) :: 2002 Died With The Main Battery Light And Triangle Of Death On

I bought my 2002 prius with 120000 miles. Last night it died with the main battery light and triangle of death on. I haven't taken it to a dealer to have the codes checked out you, but will do it soon. My daughter was driving it when it happened and said the car started shuttering and died. She was able to drive it a few feet at a time before it would die again. Does this sound like a HV battery problem? I will be digging into it tonight.

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Prius (2001-03) :: P3006 And P1259 Codes But No Loss Of MPG

Check Engine light is on but car seems to be running OK (getting 40mpg). I do notice that the car seems to rely on the Gas more than the battery than it used to.

My question is, will MPG start to drop gradually until one day the Traction Battery is just dead or will the car go from running well to not running well in minutes.

My shop says it needs a battery but it's not in the budget at the moment so I need to see if I can postpone it until the new year.

2003, 145k, just bought it 3 months ago

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Prius (2001-03) :: Getting Code P3006 But Voltages Seem To Be Good

I replaced a couple modules in my battery pack several months ago and it was working great until a few weeks ago I drove it after it had been sitting a couple days and it threw code P3006. I logged all the block voltages with Torque while I put the battery under load and found a potential issue but I'm not sure how relevant it is. Block 16 on on line 283 drops from 1624 to 1296(the refresh rate is rather poor so it's about 7 seconds between readings) while the other blocks only drop to about 1450. Is this significant or are anomalies like this normal? If this is an issue, how would I go about fixing it? I don't have the equipment to do a full rebalance, just a single channel charger. I did make sure that the voltages on the modules I replaced were consistent with the pack.

I plotted the data here.

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Prius (2001-03) :: 2002 - Code P3006 And Won't Start?

I just purchased a 2002 Prius from a government auction. The car had to be jump started at the auction yard. It ran for awhile and then died before I could put it on the dolly. I jumped it again, load it and towed it home. When I got home I jumped it and drove it off. I tried to charge the 12V battery on a 2 amp current, but it wouldn't charge so I replaced it with a new battery. Now the car won't start at all. Don't worry, I did not reverse polarity at anytime. Here's what is happening now....

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Prius (Gen 1) :: 2001 - Codes P3000 And P3006 Freeze Frame Data Uploaded

I would like to understand what this reports mean.

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Prius (Gen 3) :: Yellow Triangle With No Code After New Battery

Working on a 2010 with 156k miles that threw a P0A80 on two separate occasions. Once before the 12v battery was changed, then the day after the 12v change. Decided to change the HV traction battery today with one from a wrecked 2014 with 56k miles.

After changing the HV batt I started getting the yellow triangle with no code associated with in. I would clear the code and drive the car a few minutes and then the triangle "check hybrid system" would appear.

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Prius (Gen 2) :: Red Triangle Remains After HV Battery Swap?

I have an 07 and replaced the HV battery. Before swapping battery, I had Red Triangle, (!), VSC, Check Engine (took car to dealer who diagnosed it as needing HV battery). Now new battery is in but error-icons remain. The LCD display shows battery as more that half-charged. I connected an old Actron ODB2 scanner (circa 2000), but it doesn't Read any codes and doesn't Erase the codes causing the problem.

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Prius (2004-09) :: 2007 - Red Triangle / Battery Low

I had my Prius check out and gave me these trouble codes couples battery's low he has a red triangle ....

P0A78
P3000
P0A80
P03014
P0315

The battery's rating 13.5 volts. Will always trouble codes go away after replacing the battery I added inverter to it because it was it was dying after 50 miles per hour then it slowed down??

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Prius (2004-09) :: Still Red Triangle After Plugging Battery Right?

I recently cleaned all of the corrosion off the copper bus bars on my traction battery. When I got everything put back together I went to start the prius up and got the red triangle. I then remembered that I forgot to plug the master orange switch back in. After doing so I still had the red triangle so I turned the car on and off a couple times and it went away. Is this normal behavior from forgetting to put the master switch back in an attempting to turn the prius on?

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Prius (Gen 2) :: 12v Battery Installed - Red Triangle With No Screen Power Up

I replaced the battery because I was getting the red triangle with no screen powerup. This is a slight improvement but I'm stuck as to what the "Problem" indicator on the MFD is about.

I've checked the battery in maintenance mode, reading 12.6V.

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Prius (2004-09) :: Red Triangle / CEL And Red Car At The Top Of MFD - Hybrid Battery Failing

i have a 2006 with almost 200k miles. Got the red triangle, check engine light, and the red car at the top of the MFD. I ran the codes and got P3000. Does this sound like traction battery failure? The car still turns on and ICE still cycles off and on.

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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) :: New Hybrid Battery - Red Triangle Pop Up Intermittently

I have a 2007 Prius with 107k miles. Last July it had a minor drivers side front end collision. Last November it had the hybrid battery replaced. I believe all this is unrelated just putting it out there for information.

I am currently having the red triangle pop up intermittently. When it does a "problem" message will display on the MFD. This seems to occur most often after a long downhill or when the Energy display is showing the hybrid battery is nearly full.

The hybrid battery seems to be functioning normal and the car is driving normal and has expected fuel economy. I do have a headlight that cuts out occasionally but no other noticeable electrical problems. I do not have a diagnostic device to get the codes.

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