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.
View 5 RepliesI have a 2006 Prius with 186,000 miles. The engine developed a knock. I swaped the engine with one from a junk yard. The swap went well. I reconnected the HV battery and the 12v battery. When I tried to start the car I recieve the red triangle with many other dash displays and (!) over the car in the upper left corner of the system screen. I checked for codes with a code scanner, all I can see is $7ea and $7eb. When I clear them the (!) disapears for about 5 seconds and the word problem displays and then tha(!) comes back. The 12v battery reads 12.4 volts.
View 17 RepliesI just purchased a 2006 Prius with 89k miles and it has a problem with the drive train and randomly losing all power on the freeway causing me to make emergency shoulder stops to reset the car.
The symptoms are as follows:
-red triangle on, orange circle with ! on, check engine light on, hybrid monitor green car symbol is red with ! in it
-traction battery fan is always on when car is powered
-the car has never driven under electric power
-shifting problems, sluggish acceleration and all power loss on freeway
-hybrid monitor system lies and shows the battery full one second and empty the next.
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.
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??
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?
View 6 RepliesI 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.
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.
View 19 Replieswell 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.
View 16 RepliesI'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.
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.
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.
I changed my oil, oil filter, air filter at 90k for a trip to Miami this past weekend. Uneventful on the way up. On the way back, stopped and did some shopping before hitting alligator alley to come back home. As I got on the alley after paying the new $3 toll my 05 prius with 90k miles on it would not go over 65 with my foot on the floor and the battery on the mfd was in the pink. So I drove to the nearest exit, checked the fluids etc, all good. Got back on same thing so I put on hazards and stayed on until i could get off on a much slower road. I was going about 55-60 and it would go no faster.
As I got to a place I pulled over DC'ed the negative battery cable and let it sit for a half hour. I then attempted to get going and it seemed to be running fine until I attempted to pass a car and the car seemed to lock up and lose all power, check engine light came on and the red triangle light came on. I pulled over and let it sit again. I then got it to a gas station with the check engine light on. I put a few gallons gas on and tried to limp it home. It made it home and the battery seemed to recharge back to all the blue it can get to, but has yet to hit the green.
Error messages on my dash were originally the triangle exclamation and - p lock malfunction when parking , park in a flat place and apply parking brake securely ....
View 14 RepliesI bought an '01 prius with more than 160,000 miles last year , until now it's been a great car , averaging 46-ish mpg , now , a couple days ago I used it to jump-start a diesel truck connecting the cables directly to the auxiliary battery , the truck started after a 2 or 3 mins, the next day the known red triangle and the red car with the (!) appeared , the dealer reads code p3009 (hv leak) but were not able to give me any subcodes. Is it possible that the computer interpreted the sudden "pull" of current from the converter (via the 12v battery) as a hv leak ?
I got the reading of the 19 modules of the traction battery and all are within 0.5 volts of each other , so I hope they are all within tolerance , and the car seems to run just fine.
I have a 2002 with 110,000 miles. Over the past 8 years it has had the check engine, triangle and ! symbols come up a few times. When I was new to the car, I raced to the Toyota dealer, but they never really found anything wrong, so I have become detuned to the issue. It has been years since the last episode, but yesterday the check engine, triangle and exclamation point all came on.
The difference is now the battery indicator will drop from 75% to 25% while idling and I can hear the inverter cooler running. (usually it only runs after driving a long distance). I can see coolant bubbling in the reservoir. After a short while, the battery goes back to 75% and will stay there for awhile during normal driving, but will randomly drop back to 25%. Is this a warning of battery failure and is there anything I can check, or should I take it to the dealer?
I have a 2005 prius with 84,000 miles. The car is running fine but the main red triangle light came on. I took it to toyota and they said I needed a new hybrid battery.
View 10 RepliesI 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.
View 19 RepliesGot 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.
View 19 RepliesTwice this week I have received the Yellow Triangle alarm with the message Key Battery Low. This is the first time I have seen this alarm since I bought the car in August 2009.
I changed the battery the first time after 3 years based on recommendations from the forum. This time the batteries lasted just over 2 years.
I tested the batteries on both Key Fobs and they were both in the 2.9V range. The new batteries tested at 3.3V which is their rating. So ~2.9V must be the low alarm setpoint.
I bought a 2005 prii with 145k miles about a month ago and have since driven it 1,200 miles. A few days ago, the red triangle light came on when I started the car in the morning. I had to get to work so I unplugged the negative on the 12v and reconnected it. It started and it drove just fine. I get off work and the same thing happens. I did the same thing and drove home just fine. I then ordered a optima yellow top from elearnaid and it was shipped and arrived in 1 day!!!
I installed the battery this morning and called the dealer to notify them of my situation. The light didn't come on so I thought it may just be the 12v. But of course I didn't wanna run out of warranty and then the hv battery completely goes bad. The dealer tells me to bring it in and I did. They "diagnosed" the car and could not "repeat" what had happened to me. They said because I unplugged the 12v, it erased any codes. I thought it's always saved on the ECU? anyways, I told them about installing a new 12v battery and they said, "that must be it." I'm at 147k miles right now and I don't want my 150k / 10 year warranty to expire before something really goes wrong with the hv battery.
Am I just screwed and hope for the best for miles to come? Or is there a Toyota number I can call to tell them of the situation? I'm almost hopeful that it was only because of the 12v but at the same time, I have doubts.