Prius (2001-03) :: Warning Symbols Come On Frequently - P3000 Code / High Voltage Leak
Dec 8, 2013
I bought an 03 with 58K miles on it. shortly after I bought it the check main battery light came on, after the local Toyota dealer told me I needed a new main battery. I had a P3000 code, a high voltage leak. It turned out to be corroded buss bars and cables, with 2 leaking cells, $1,450.00 latter the onboard computer said the problem was fixed and my display read normally for about 1,500 miles before I started getting that code and the check main battery light again.
I took it back to the shop tat did the work and they ran the diagnostics on it again, checking the main power cables that led from the main battery under the car to the Toyota Hybrid system, inverter? Under the hood they checked all of the high voltage connections, they all checked out fine. The shop then took several days to do an online search for possible causes. This led to the CV trans axle with its electric motors and generators as the possible culprit. The car is running and driving fine, so I did the 60,000 mile transmission oil change, suggested by my mechanic ( apparently the fluid becomes conductive with age) the check battery light will go off if I remove the secondary battery terminal for a minute or so and stayed off for 2 tanks of gas after the fluid change but it did come back on.
I can reset the computer easily enough and it will stay off for 3 to 400 miles but I'm looking to get the damn light to stay off. I'm going to change the trans fluid again. Changing the drive motor or generator?, can this be done in the car? or at all? It may be that if this is the problem it may end up making sense to just put in a new CV transaxle.
View 6 Replies
Advertisement
I bought an 03 with 58K miles on it. shortly after I bought it the check main battery light came on, the local Toyota dealer told me I needed a new main battery.
I had a P3000 code, a high voltage leak. It turned out to be corroded buss bars and cables, with 2 leaking cells, $1,450.00 latter the onboard computer said the problem was fixed and my display read normally for about 1,500 miles before I started getting that code and the check main battery light again.
I took it back to the shop tat did the work and they ran the diagnostic's on it again, checking the main power cables that led from the main battery under the car to the Toyota Hybrid system, inverter? under the hood they checked all of the high voltage connections, they all checked out fine. The shop then took several days to do an online search for possible causes.
This led to the CV trans axle with its electric motors and generators as the possible culprit. The car is running and driving fine, so I did the 60,000 mile transmission oil change, suggested by my mechanic ( apparently the fluid becomes conductive with age) the check battery light will go off if I remove the secondary battery terminal for a minute or so and stayed off for 2 tanks of gas after the fluid change but it did come back on.
I can reset the computer easily enough and it will stay off for 3 to 400 miles but I'm looking to get the damn light to stay off. I'm going to change the trans fluid again. Changing drive motor or generator?, can this be done in the car? or at all? It may be that if this is the problem it may end up making sense to just put in a new CV transaxle.
View 4 Replies
I have a 2003 Prius with a hard falt code of P3000 main battery bad! But there is not anything wrong with the batt or how it runs. I cleared the code and in 10 miles or so it comes right back? I was thinking of a reflash on the computer, what to do?
View 1 Replies
I have a problem with my 2002 Prius when I was driving down the highway the master warning light came on with a warning display screen appearing saying that there is a problem in the Hybrid System and then the car went into shut down mode. I had it towed to the dealer for diagnosis and an estimate. The codes read were P3000, P3004, P3125, and P3009 they did not tell me the sub-codes read. Their diagnosis was the inverter needed to be replaced. The Main battery on this car had been replacing at 140,000 and there has not been a problem since the car has been well taken care of throughout its life. Being new to working on hybrids but not cars and electronics I figured I could replace it cheaper than the dealer price of $4200. With the age of the car and high miles 175,000 I figured it would not be worth the new part price so I got a guaranteed used inverter. After replacing the inverter I still got the same problem with no change.
So I decided I would have to diagnose it myself. The car starts and runs fine and starts charging the battery right away as normal but if try to but it in reverse or drive it fails so that means the short would have to be in the transaxle. I decided to test MG1 and MG2 for shorts and I figured I would need to use a megger to do this but I did not all three winding on MG2 test shorted to ground on the 200-ohm scale on a regular ohm meter. Then after closer inspection of MG2 cables, you can see a coating of corrosion running up all three cables. So the question I have is this corrosion on the cables a common problem for 1st gen and could it be possibly just a cable issue and not MG2 and can the cables be replaced without dropping the engine and transaxle???
View 3 Replies
2005 Prius shows a C1241 code, which can mean abnormally high or low positive voltage in the auxiliary battery. In my case it appears to be abnormally high, because my voltmeter showed the battery charged to 18 volts with the car off, and when running it showed 20 volts going to the battery. There's also a POA80 code (hybrid battery pack) but I'm not convinced yet that it's a hybrid battery problem. What would cause the overcharging of the auxiliary battery?
View 8 Replies
I have my 2004 Prius in the shop for a replacement of the HV battery pack. The car has approx. 120,00 miles on it.
The battery failed with all the lights, warning symbols etc. I just got a call from the dealership that its going to take longer than expected to get the car back to me. They have the battery pack replacement, but when doing the replacement, they noticed that the cables were "corroded." The cables for the battery need to be replaced before they will complete the repair. But the cables need to be ordered and won't be in soon.
Is this common? for these cables to corrode? Would this problem have caused the HV battery failure?
View 8 Replies
Thursday afternoon I drove about 120 miles total in my 2004. At about 40 miles I left my wife to shop and drove on to 3-4 other stops for myself and then came back to pick her up for the 40 mile drive home. When she got into the passenger seat, she found that the carpet & mat on the floor were sopping wet, so we put some heavy towels over the wet area to protect her shoes. When we got home (with NO operational issues), I removed the passenger floor mat, put several thicknesses of more heavy towels on the carpet and placed 2 concrete blocks on the towels to soak up the water.
On Friday, I changed the towels and did not use the car. Saturday, I removed the towels, concrete blocks, and went to start the car so I could see if there was water dripping from under the dash from a plugged condensate drain, since I had not driven in rain or water on Thursday. The dash displayed every warning light imaginable including "check engine", hybrid system warning, slip indicator, brake system warning, Master warning (!), VSC, Maint reqd. Now it is Sunday and I still cannot get to the "Ready" light so I can start the car. My traction battery condition was solid green yesterday, solid blue today. The radio, interior lights, A/C fan, door locks, etc. all work.
Could there be anything under the passenger carpeting (or behind the dash which might have gotten wet which could be causing these problems/codes?
View 18 Replies
My 2005 Prius has about 141000 miles on it. The red triangle exclamation point comes on the dash and a yellow exclamation comes on the LCD 1st and then a 2nd yellow symbol comes on the LCD. The problem happens once or twice a day. It seems to start, run, and drive just fine. I do restore antique tractors and I am pretty good with computers and I have some pretty good mechanical know how. Attached are pictures of the lights.
View 1 Replies
I had the dealer disable the beep in the "R" reverse position soon after I got my Prius. This worked great. After about a week, however, I now notice that the "R" symbol blinks whenever I am in the "R" position.
Also, when pushing the start button, the dash only showed the warning symbol and TRAC symbol for a couple of seconds and then went out. Recently, however, 8-10 warning symbols come on in the right part of the screen and then go out. Why this suddenly comes on?
View 8 Replies
My 2006 Toyota Prius with 130k miles i had the 12v battery replaced 4 months ago because I had the dashboard not turning on when starting the car. I drive about 200 miles everyday for work (deliveries) so the car basically is turned on all day.
Last week when I got home turned off my prius when I turned it back on later that night the dashboard would not turn on. Tried disconnecting the 12v battery and still no dashboard. Drove around like that for two days until Friday when suddenly the dashboard turned on and everything was fine.
Later that night I turned on the prius and the dashboard didn't turn on again, shut it off and turned it back on, dashboard turned on.
Now the big issue: The ICE does not want to turn on. Vsc and abs lights with the triangle of death are on. Code reader wasn't showing any codes.
I towed the prius to my mechanic so I wouldn't get stranded with only the electric motor running, he checked the 12v battery, fuses and relays. Moving the car around on his lot they discharged the hybrid battery. At first there were still no check engine light and no codes. Now the prius is throwing the p3000 code.
View 10 Replies
My wife was driving the Prius today and triggered P3000 code, the triangle popped up and the battery blower fan runs full on. I of course googled it and see it can be due to battery overheating? How should i go about trouble shooting this?
View 19 Replies
I was driving my 2005 Toyota Prius and all of a sudden some lights came on the dash. The orange check engine light, The big red Triangle with an exclamation mark on it, the orange VSC symbol, and the orange exclamation mark all at once. I also heard the fans in the back seat kicked in which I never heard before. It felt as though the car didn't have much acceleration. I took it to the dealer and they had it a whole week trying to figure out what it was wrong. They said they got the P3000 INF 123 code from the car which they said the HV control ECM for $2000. Needless to say I don't want to pay that! I found used ECM on ebay for $85 and I bought a scangauge 2 . I pulled 2 different codes out with the scan gauge 2 P0A80 and P3021.
Do you think the dealer diagnosis is right? What does the codes I read out mean?
View 4 Replies
I have a 2004 prius with p3000 sub 123 this is the only code. This happen after a replace a cell. Now I check every cell all of them are around 8 V.
P3000 subcode 123 is abnormal signal from the battery...
View 1 Replies
I drive a 1998 Jeep Grand Cherokee, 6 cylinder engine, with about 120,000 miles on it. I used a code scanner and pulled a P0138 code-bank 1 sensor 2 O2 sensor high voltage, if I'm correct. First of all, it looks like this sensor is after the catalytic converter, right? So I think I either have a bad 02 sensor or a bad catalytic converter. What are the consequences of driving around without fixing this? Will I see any reduction in fuel economy, or any potential long-term problems elsewhere?
View 2 Replies
Car stalled and ran on battery only. Set code P3125, and depleted aux battery. So, I replaced the inverter and recharged aux battery.
Drove it 20-30 miles test driving it, when the MIL came on.
Drove home and found 2 codes set, 1st was set while driving, 2nd was set after parking.
P3000/123 - MPH=22 MG2.RPM=1280 SOC=65% Position=D
P3125/287 - MPH=1 SOC=60% Position=P
Any TSB on this issue?
View 8 Replies
Bought a used 2002 Prius in December of last year. When I got it home the hybrid system warning light and the check engine light came on, but after reading through priuschat for a few hours I thought to take a look at the engine air filter, which turned out to be utterly filthy. Replaced it and the car ran fantastically for the next 8 months, which was plenty of time for me to fall utterly in love with how quiet it is and how smooth a ride it is.
The carfax report for the car showed that its battery was replaced shortly before I bought it and that its transmission fluid was changed approximately 20k miles before that, so I thought (apparently mistakenly) that I didn't have to worry too much about either.
During these 8 months the car saw my regular mechanic for oil changes twice, had a bad CV axle replaced and I was told the serpentine belt was glazing and may need to be replaced with the next oil change, but neither I nor my regular mechanic noticed any other issues.
View 17 Replies
I would like to understand what this reports mean.
View 3 Replies
I need assitance on the following diagnostic report. My prius shows:-
1. Red triangle with exclamation mark,
2. On the LCD red car with exclamation mark,
3. ABS sign - on and off.
View 1 Replies
2014 Prius V. Voltage on headlights 14. 63 volts. This reading is from of the low beam headlights. What could be causing this problem.
View 7 Replies
I have a 2007 prius. The headlamp, "high voltage", is going on and off. Is there an alternative or lower cost bulb and instructions on how to replace the bulb. I've heard you have to loosen one side of the bumper?
View 2 Replies
I have a code reader got P1193 - MAF sensor low voltage
Is it shot or just need cleaning? Or is it something totally different
2005 Santa fe 3.5l
View 2 Replies
