Prius (Gen 1) :: Mystery Warning Light - Code P3140
Jun 17, 2014
I received my Mini VCI and sure enough the code was P3140 off of the hybrid ECU. My little bluetooth OBD2 scanner and torque just wasn't enough.
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Jun 17, 2014
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Prius (2004-09) :: Mystery Warning Lights Comes On After Starting ICE
What the warning lights mean (red triangle with exclamation mark inside, and yellow icon upper left of display, 2005 Gen II)? It comes on after starting the ICE, used to come on intermittently, now it's all the time... my hunch is the suspension because the ride has been getting worse, with unusually loud sound from the wheels over potholes!
View 3 RepliesPrius (2001-03) :: Got Error Codes P3001 / P3009 / P3000 / P3004 / P3140
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.
Prius (2004-09) :: VSC Warning Light Came On And Won't Go Off - Code 34
I nearly killed my 12v battery this week when I left my dome light on in the Airport parking lot. When I got back to the car I was able to pop the hatchback, but there wasn't enough juice to start her up. I was able to get a booster pack jump and it looked like everything was fine (didn't even lose the radio presets on the aftermarket deck). I had a long ride home to charge the 12v battery up. I changed out to the Optima yellow-top a couple years ago, so I'm not too worried about the battery being crippled. I've gone into the onboard signal menu and the battery voltage is well within spec idle and under load after a few hours of driving recharge.
Low and behold, the next day the VSC warning light came on and won't go off. I am NOT getting the brake (!), red triangle, or ABS warning light as others have received with 12v battery issues. I put on the OBC scanner and pulled no issues. I jumpered pin 13 TC and 4 Gnd on the interface to get the flash codes and sure enough, I'm getting a 34 code on the VSC system. I have been unable to clear the code via tapping the brakes.
What a VSC 34 is and how to clear it?
Prius (2004-09) :: Code 1121 And 1116 With Warning Light Came On
I have had a 2007 prius for about a year now. Great little car. Today the warning light, and VSC light came on. Then the ABS light and the car would no longer go into gear. We had a diagnostic and the two codes that came up were 1121 and 1116.
View 4 RepliesPrius (2010-12) :: Airbag Warning Light Code B1826
Several weeks ago my 2010 Prius (actually bough 8/09) started displaying an intermittent airbag warning light. This is the red one on the right side of the display. Brought it in to the dealer, as the warranty on the SRS system is 5 years. They charged me a diagnostic charge of $96.00 because they claimed that although the SRS is covered under warranty, the diagnostic system was not. They did the work, and should get paid, but I am still after Toyota to pay them, and refund me. In any case the diagnosed code was B1826, which is an open in the side squib left hand circuit. In other words, a poor connection, or one with more resistance than the computer expects to see. They recalibrated the system and claimed it was fixed. However, two weeks later, it's back again.
View 6 RepliesToyota - Prius :: Warning / Check Engine Light Came On - Diagnostic Code P3006
I need to get my 2002 Toyota Prius inspected. The Warning/check engine light came on so I ran a diagnostic (OBDII) on it and came up with P3006 Fuel Air Metering Auxillary Emission controls. What does this mean? Previously codes indicating cylinder misfire came up but those cleared.
View 3 RepliesPrius (2001-03) :: Warning Light Came On / Random Engine Misfire - Code P0300
Had this code show up after the warning light came on and then the light went away after two day, the car seems to be a little sluggish now. I have read that this is a random engine misfire and it could be a bad plug..
View 1 RepliesPrius (2004-09) :: 2005 - Master Warning Light / Malfunction Indicator / VSC / Brake Warning Light Came On
In my one-owner purchased-new 2005 Prius w/ 74K miles and w/ no maintenance/accident history other than doing all scheduled maintenances at Toyota Dealers along w/ recalls applicable at each time (other than we had Toyota replace the 12V battery last year just because I knew it would die at some point anyway and I don't like pushing my luck; I'm not 100% certain if there's been a recall on any water pump for this car and if so, don't believe the dealer has mentioned it), I have the following indicators which appeared all at once while I was driving along at around 45 MPH in no unusual circumstances (80F, dry afternoon, about 30 minutes into a trip of mixed speeds, no loads in the vehicle, no effect on the car while driving):
From Left to Right on the display:
1) Red Triangle - Master Warning Light
2) Orange (Symbol)CHECK - Malfunction Indicator Lamp
3) Orange (!) - Brake Warning Light (but it didn't highlight the word 'Brake' in red)
4) Orange VSC - Vehicle Stability Control Warning Light
On the Screen:
Orange Car w/ the ! symbol - Hybrid System Warning Light
We immediately aimed for the house (about 5 miles away); the car drove perfectly fine, with the engine stopping and starting at lights as needed, with speeds going from the 55MPH we were traveling at the time of the alarms down to 0 and back up thru 35/45 MPH and such per normal off-interstate driving. The battery currently shows all the blue bars, and the engine and hybrid systems showed charge/discharge as usual as we drove. There was no discernible change in the driving reaction of the car to brake, steering, accelerator, etc.
Sonata NF (2006-10) :: Mystery Light Indicator On Dashboard
I have no owners manual and cannot determine the meaning of this light indicator on my dashboard. It resembles a letter "U" more horseshape with the exclamation point in the middle of the U. How to determine the problem that this light indicates? BTW, I have been driving my car and concerned that continuing will damage.
View 11 RepliesPrius (2004-09) :: Mystery Noise Behind Passenger Side Dash
I've put a recording on Soundcloud:
The noise is best heard at 1:00 onwards, after everything else has stopped. I left everything else in the recording, the volume level relative to the engine etc.
Prius (Gen 2) :: 2005 Toyota Hybrid System Warning Light And Yellow Brake Warning
I've got some issues with my 2005 Toyata Prius (~150,000 miles). My wife was driving recently and the "Master Warning Light", the "Hybrid System Warning Light" and the yellow "Brake System Warning Light" all came on.
Some quick reading of the owners manual said we should take it to a dealer right away, but because it was a yellow, and not red, brake system warning light it seems ok to drive at least to a dealer. in regard to the yellow brake system light the manual said it could be that: "the regenerative brake system failed or that the hydraulic brake system failed".
Now, I have a cheap bluetooth OBD reader hooked up to the "torque" app on my phone and I thought I would try to see what error codes there were to learn more. But strangely, it did not read any fault codes. I've used this reader successfully on my 2001 Mitsubishi galant, but I'm not reading anything for the prius in this case. I'm not sure if there is legitimately no error code associate with the warning lights or if my app is just failing to read them for some reason.
Camry :: Airbag Warning Light / Code B1826 Came On
06 Camry, ~130K miles.
So the Airbag warning light in my Camry has been coming on (and staying on) intermittently, but would turn off if I turned off the car and restarted it. May take a cycle or two, but it would turn off.
Took it to the dealer, they isolated to the passenger side seat. They cleaned contacts, reseated connectors etc.. and the light stayed off for a while. By the way, there appears to be no relationship to anyone sitting in the passenger seat, or not, at the time.
Happened again maybe 3 weeks later. Same thing was done at the dealer.
Took it in today with light on, they pulled the code B1826 (Description: OPEN IN SIDE SQUIB (P SEAT SIDE) CIRCUIT)
This is my wifes car (and kids) so no airbags isn't an option. According to the documentation I got from the tech at the dealer, the Detecting Condition is:
The airbag sensor assy center receives an open circuit signal in the side squib (P seat side) circuit for 2 seconds.
Side squib (P side seat) malfunction
Airbag sensor assy center malfunction
The "Trouble Area" information:
Front RH seat assy (Side squib (P seat side))
Airbag sensor assy center
Floor wire No. 2
Phaeton :: Yellow Engine Warning Light On - Code P2181
My 2006 V8 Phaeton has had its yellow engine warning light on for a few weeks. Around the same time, the cooling fan in the engine compartment stays on after I stop the car - even though its Winter here in Montana. So I got the fault code read: P2181. Seems to be linked to cooling system?
View 18 RepliesPrius (Gen 2) :: P0A80 Code - Warning Lights On The Dash
My 2007 Prius with 176k had the warning lights on the dash. I finally got the code read and it is the P0A80 code. The 12 volt battery seems good, it is about a year and a half old or so. That was the only code.
View 10 RepliesPrius (Gen 2) :: 2006 HV Battery Died - Warning Lights With Code Came On
Gen II Prius, 151000 miles, HV battery died (rapid charging / discharging, cooling fan on high constantly, etc) Installed remanufactured HV battery. Connect it all back up, test drive, get the triangle of death, VSC, amber (!), and MIL on MFD. Car continues to drive normally until shutdown, upon next startup lights still present and won't shift into D or R only N. Pull codes, POAA6 is showing.
Code doesn't reset with car in ign on (not ready) after 60 seconds, make car ready and shift immediately to N. Code resets after 30 sec. Have done this trouble shooting 4 times and code always resets with ready on and in N. This points to the HV 'leak' being either in the wiring harness or the inverter. What I can do next in order to figure out which one?
Prius (2004-09) :: Warning Lights On / Code U0100 - ICE Does Not Fire Up
Driving home today, my prius threw the triangle and all the other warning lights. Scanned with my scan gauge got code u0100. I was only a mile from home so attempted to drive it. Car made it 1/4 mile and then died. I had it towed to the house and checked the grounding wires going to the engine and transaxle. The Tranaxle grounding wire was loose so i pushed it together tightly. The car now runs on main battery only, the ICE does not fire up. All warning lights are still present. Nav screen says problem. 12v is good.
View 15 RepliesPrius (Gen 2) :: Error Code C2310, C2318 With Warning Lights Appeared
I actually just bought a used 2004 Prius with 207,011 miles on it from out of state. I had a car shipped to me by a flatbed trailer. I just got the car the last weekend. However, It has a yellow engine light and a big red triangle with an exclamation mark (!) on a dashboard, and a red car with ! on top left of a display screen.
I drove it to a DMV to get it registered and took it to Pep Boys near my place since I have to get it an emission inspection within 10 days of registration anyways.
They ran a diagnostic test and found 2 current error codes (C2310-open/short in battery circuit & C2318-low voltage error) and 1 history code (P0A80-hybrid battery pack needs replaced), so they didn’t perform the inspection; otherwise, it would have a failed record). They told me that the car has had problems before and the problems are about a hybrid transaxle and a hybrid battery pack. They also told me that I need to visit a Toyota dealer to get them fixed in order to pass the inspection, and they warned me that is going to cost me a large four digit probably . So, they suggested me to just trade it in because it is not worth repairing. They also told me that a dealer who sold me the car probably would have done something to the car, that’s why it didn’t illuminate any warning lights before.
I tried to gather as much information as I could, so I asked the shipper if he noticed any warning lights but he didn’t think so; one thing he noticed was the hybrid battery isn’t charged because the engine started every time he moved the car.
I plan to take a car to another auto shop near my place as well in order to have them double check the issues and give me a repair estimate before taking a long trip to Toyota dealer.
Prius (2004-09) :: P3009 And Info Code 526 With Warning Lights Diagnosed
I bought an '04 prius about a month ago and it has already been at Toyota for over a week. It get's the red triangle, the yellow brake light, and the hybrid red car on the screen and says Problem! I took it to the dealer and he pulled the codes P3009 and info code 526. When you open the hood, the inverter overflow tank is boiling, so it must be overheating. I have read about the pumps going out and when the engine is cool there is turbulence in the overflow tank.
The guy I bought it from did say he had replaced the water pump recently. Toyota kept it for a week trying to replicate and couldn't, and even had the regional rep look at it.
Prius (2004-09) :: Warning Lights Appeared With Error Code P0a80
Bunch of warning lights appeared and the dealer said it's code P0a80 and they recommend replacing the battery. I'd like to try to fix this myself and would like to hear your thoughts...
Plan is to check the traction battery for corrosion and use a voltmeter to test the cells and replace if needed. Prius 2004, 158,000.
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.