Prius (Gen 1) :: Warning Lights Illuminated - P3030 Came On
Jul 14, 2014
I recently purchased a 2001 Prius from a state fleet auction. The car has 121,000 miles and was in the non-running part of the auction. It had been sitting at least four months. I decided to give it a go since it looked to be in decent condition.
It did not start because of a dead 12v battery. I bought a replacement battery, but it still did not start. The screen showed ~ 1/8 hybrid battery. The warning lights illuminated and it was never ready. I plugged in my code scanner and a P3030 code came up.
I got it towed home and started working on it. The P3030 code signifies a high voltage line snapped .
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Driving home early from work today, moments after leaving the parking lot the VSC warning light illuminated. Followed by ABS and Power steering lights a few seconds later.
Car drove normally. Systems seemed healthy.
I quickly pulled over, took this picture, and then power cycled the car. The warning lights turned [off] and stayed off for remainder of drive home (~30 min).
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I finally found the Prius I wanted. It's used. 2006. Gen II 220k miles. Bought at auction almost completely dead and no gas. After adding gas and driving so the main battery charges. It starts up great however the dash looks a little scary with nearly every warning light on.
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This afternoon, after driving about 150 miles, I came home and shut off my 2001 Prius. It was sitting for about 20 minutes before I turned it back on to drive off. Almost immediately, the hybrid warning light came on on the MFD, the red exclamation mark light illuminated, as well as the check engine light, and the motor shut off. I popped the hood, and could hear a high pitched squeal coming from near the inverter. I called my dealer to ask the service department what I should do, and they just told me to bring it in and they will take a look at it. I live over an hour away, so I don't want to bring it there if I can avoid it. I then shut it off and let it sit for a few hours.
After reading about the possibility of the auxiliary battery being bad, I went and turned the Prius on, and then shut it off several times to reset the hybrid warning light (I had to do so in order to access the aux battery information through the MFD). It turned on without incident, and shut off fine, and after being reset the hybrid warning light shut off, as well as the red triangle light. Then, I went through the process of pulling up the battery voltage information through the MFD.
With the car off, and the lights and fans off, the battery voltage read about 10.0-10.5 V. With the lights and fan on, the voltage dropped to about 9.5 V. After getting those readings, I drove it down the road a little ways, just going about 20 mph. It seemed to work fine. The check engine light is still illuminated. With the motor running, the voltage reading was 13.2 V, and then when I got back from my test drive and shut it off, the voltage hovered at 10.6 V with the lights and fan on.
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My 2010 III's hybrid warning light illuminated today while I was driving, and the vehicle shut down almost immediately.
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A few days ago I noticed when I started the car that both the HV/EV and ECO mode lights were illuminated. What does that mean?
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I picked up a 2002 Prius with 164k, still on original battery. It giving code P3030 which evidently relates to a high voltage line snapped on the bus bar.
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we have a Prius from 2004.
We have had problems with the starter battery. This is because the car is so rarely driven. So to fix this I have charged the battery several times. But have not disconnected the battery cables before. I don't know if thats the reason why we have problems though. But you can suspect that.
One morning when we should drive the car we saw that the "check engine light" came up on the dashboard. And other warnings also.
I bought an OBD scanner and hooked it up. P3030..
So I took the hybrid battery out of the car and cleaned all poles and connections. I measured each battery cell to approx 7,6 V.
I also bought a new starter battery. Now, I have put all together again. But P3030 is still the case.
Is it possible to measure the voltages from the busbar module by measure on the contact to the ECU? I have tried that but don't get stable results. The voltages goes up and down all time..
My last hope is that a wire between battery busbar and ECU is broken. But I couldn't recognize that when I had the battery out of the car.
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Could a bad transmission cause error code P3030 and P3009?
This car has no other symptoms other than the Mil light and the check engine light.
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2001 Prius
I was able to pull codes this evening ( no subcodes).
The codes are as follows:
P3000, Battery Control System Malfunction
P3030, Battery Voltage Detective Line Snapped
Will the P3030 cause a P3000 to pop up since it appears I have one of the 19 voltage detect lines corroded or broken?
Once I fix this issue, is there a chance that the P3000 will disappear?
I was just getting the triangle and the Main Battery error on the MFD up until yesterday. Yesterday, the ! with the car came on (Hybrid system) on the MFD. I did not check any codes until today. Car will currently not start at all.
Aux battery voltage is confirmed to be 12.3 volts via the MFD in the diagnostic mode so it's good to go.
No one around has a scan tool that will also pull the subcodes.
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I read the forums and found nothing quite like mine.
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On my `87 Caprice Classic 305 the brake warning light came on so I topped off the fluid but the light remains on. Brake peddle travel is good and my car has good braking. Am wondering what else triggers the warning light to illuminate.
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I had just picked my kid up from school, as I turn out of the parking lot my A/C stops blowing cool air, I check the A/C screen and it still says it's set on High with temp at 68. However, it is blowing very low with warm air. Seconds later the dash lights up with numerous warning lights. I'm on the highway and I'm able to gather speed, but each time I do I hear the engine revving like crazy. We only live a few miles from the school so I am able to make it home. Once home, I turn off the car and turn it back on. The only warning lights displayed now are the red triangle and the yellow check engine light. I turn the car off, pop the hood, I check the belt and it was fine. I checked the oil and it seemed fine. I check the coolant overflow and it was empty.
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Following a storm last week, my car had a completely discharged convenience battery. The carpet in the driver's (RHS) footwell was soaked, and I vacuumed out about a pint of water. The right front sunroof drain was blocked, so I massaged the duckbill valve and got this working again. The carpet is now completely dried out.
I fully recharged the battery using a mains charger, but two days later it was flat again. I ran a VCDS scan, found and reset lots of fault codes for low battery. I then discovered that the trunk lights were not turning off when the trunk lid closed, hence the battery discharge. The measuring block for trunk lights shows 0% however. The power trunk lid operates correctly from all switches and the remote.
All other vehicle functions seem to be working OK. I have removed the fuse for the trunk lights temporarily, but obviously would like to get them working properly again.
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Following a storm last week, my car had a completely discharged convenience battery. The carpet in the driver's (RHS) footwell was soaked, and I vacuumed out about a pint of water. The right front sunroof drain was blocked, so I massaged the duckbill valve and got this working again. The carpet is now completely dried out.
I fully recharged the battery using a mains charger, but two days later it was flat again. I ran a VCDS scan, found and reset lots of fault codes for low battery. I then discovered that the trunk lights were not turning off when the trunk lid closed, hence the battery discharge. The measuring block for trunk lights shows 0% however. The power trunk lid operates correctly from all switches and the remote.
All other vehicle functions seem to be working OK. I have removed the fuse for the trunk lights temporarily, but obviously would like to get them working properly again.
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Are your mirror controls illuminated when you turn the lights on?
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I was driving home and the dash lights went out. I checked all of the fuses and they all check good.
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Ok so first the battery light came on then all the other lights on the dash came on, ended up dying and we replaced the battery but the abs, esc break light and battery light still are on the dashboard. Also I can use the shift release to drive the car but other then that it is stuck in park. I was reading that the car has a atm but I don't know where its located.
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The ABS no longer working lights like brakes, abs, vsc all illuminated on the dashboard, diagnosed and found out the accumulator has gone bad though, the pump is ok, need a new accumulator to move the suv from its present location to a safe place.
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Ran obd I I tool on my fiance's 2011 Camry. Threw codes C0365, C1330, and C1445. cleared the codes and the only one that is recurring is the C1330. ABS and traction control lights are illuminated on the dash.
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I have a 1998 Passat 4cyl turbo. Recently the ICM module on the air box went out when I had No Fire on 2nd cyl from the front. Replaced it with a MPGauto part for $63. It fixed the problem but, I noticed that now the PRND321 lights are luminated all the time and downshifts hard into 1st gear. Also should I be concerned that I need another catalytic converter b/c I drove another 40 miles with it missing and it (CC) was very hot. Do they break down inside? The car runs great. Is my problem related to this china part not having a special VW code or can the car be reset?
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