While driving home last night the Red Triangle, CEL and the Hybrid Warning lamp, (on the MFD) all lit up. The cruise control also shut down. We stopped and checked the manual to identify what the symbols meant. We were approximately 90 miles from home, drizzling rain and it was about 60 degrees.
View 18 RepliesI own a 2006 JDM prius with 323,000 km. The inverter coolant pump failed recently (got P0A93 code and no agitation in coolant reservoir). I ordered a replacement on eBay and am awaiting arrival. I may need to do some light driving in the in the interim and am thinking about installing a 10 inch fan in the space between the inverter/transmission and radiator to keep things cool. Is this wise or should I just let the car sit until the new pump gets here?
Also, I am burning oil...I usually have to top up 1 to 2 quarts in between changes. Is there anything I can do without tearing down the engine? A friend of mine suggested using Lucas oil stabilizer the next time I change oil...could this have any negative implications?
I have a 2007 Prius, and bought it used about 4 months ago. I have not had any issues with it until last night. Last night I was driving home and the red triangle with the “ ! “ in the middle and check engine light came on. The car seems to be running fine, but it scared me to see the lights come on...so this morning I called my local Toyota dealership.
NOTE: I recently went to them for an oil change and they informed me that I had three recalls on my vehicle that needed replacing, but I did not get them replaced because I was told it would take 5-6 hrs (which I didn’t have at the time).
Anyway, they told me that it would cost $70 to have the codes read...and that did not include parts that may need replaced... I thought that sounded a little high for just having the codes read so I went to my local Autozone and they gave me this code:
P0A93 - Inverter Cooling System Performance
Prius 2009 inverter coolant pump failure 51,300 miles....
View 8 RepliesMy 2007 Prius with 162k miles had an Inverter Coolant Pump Failure Monday 6.5 hours from home when my wife was driving it home from a trip. Red Triangle, (!), vsc, and check engine light. She was able to make it about 20 minutes to a dealer where it was diagnosed. Luckily no further damage was done to vehicle. Yes, she should have stopped but continued on since car was driving OK.
View 7 RepliesSo got this P0A93 code when I was driving on the highway about 65mph, scared to me death when big yellow warning light came on so I returned home and turn the car back on after 30 mins the code and all the warning lights were gone I checked under the hood felt the pump everything was good. I just got done 90k maintance on the car from dealer. So my question is that could be computer error or it could be water pump malfunction? On warranty manual the warranty for inverter with converter covers under 100k so dealer should be able to cover the water pump if it's broken? I driven the car today again at normal temperature and full blast AC on, then again no engine check light on and warning light no message.
View 4 Replies2002 Prius with 94K gave me today P3130, after I tested the Inverter Water Pump I found out that it bad but until I go to the dealer in order to buy the part $147 he was closed. the question is can I drive with the car like this bac home (65 miles) and if I turn on the A/C the Engine will work all the time right? And also after replacing the Inverter Water Pump how can i tell if the problem solved?
View 14 RepliesI have a 2001 Toyota Prius. The inverter cooling pump was dead and I had the P3130 fault code. I replaced the pump and the refilled the fluid. After more than 4 or 5 times bleeding the system, now the pump sounds funny. It sounds like a water fall and look like it has too much air!!!! I can’t see any turbulence in the reservoir tank either.
There are 2 bleeding valves on the front side of the Inverter. Which one should be used to for bleeding the system? Both?
Does the system have any thermostat that could cause problem? Does it use the same radiator as the main one? What could cause having NO turbulence? I think the new pump will be dead too if it can’t make the turbulence.
07 Prius. So I get the triangle of death, car shuts down, and throws the A093 code indicating pump failure.
View 10 RepliesSo I've had this code come up and go off multiple times its P0A93 which has to do with the inverter Coolant pump, and all the posts I've read about it here, none of them had an intermittent problem with it. Like it will come on and then I let it sit overnight adn it will go off. When I take the cap off the reservoir there is turbulence in the coolant and I've bled it many times. It came on and shut off 2 times on my drive to New York 3 weeks ago but then didn't come on again until today, almost 2500 miles later. And today when the light came on it listed these 4 codes.
View 9 RepliesThe inverter failed on my 2010 Prius. Toyota had recalled this on previous models, but not the 2010 Gen III.. When it fails the car shuts itself off while you are driving. Luckily I was not on the freeway but was still nearly rear ended and was lucky to get off the road with no power.
View 10 RepliesWhat happens when a power inverter fails while driving?
View 2 RepliesI am about 50 miles from El Paso and 350-400 from home, broken down on hwy right now, all the dash lights lit up and my scan gauge says p0a93 the inverter pump thing. Nothing has been worked on or messed with so i should have no air in the lines etc
Can I drive it like this to El Paso or home? Car seems to be running fine. Car is under toyota warranty so i don't want to screw anything else up.
2010 Toyota Prius III with just under 60,000 miles. The car has been serviced at Toyota from day one (by us and by the previous owners) and runs like a champ. Well, did.
Last week while driving home from running errands the Check Hybrid System light came on for my wife. The car was still running so she drove it home for me to look at. I hopped in and noticed the gasoline engine wasn't turning on. I took it for a spin and even when I floored the car the gas engine wouldn't turn on. Since the nearest dealership is 15 highway miles away I knew we weren't going to make it there on electric power so I had it towed.
The Toyota dealership called me the next day saying when they started the car the light was gone and the car ran fine. They did some troubleshooting and found nothing wrong. They said it might have been a glitch and to come get the car. Not even 3 hours later the light turns on again. Again the gasoline engine goes silent, but this time I didn't even make it a mile and the electric power shuts off as well! We coasted to a stop and had to have the car towed again. This happened out of nowhere and could have been a very serious safety situation had it not happened on the road we were on.
This time the Toyota dealership had a little more to say. They said that their diagnosis has determined that the inverter is shot and they will have to order a new one. They said this failure is extremely rare (the service guy I spoke with had never seen this issue).
My 2008 Prius (111,000 miles) had all the panel alarm lights go on and lost power while I was driving on the freeway. After turning off the vehicle and letting it “rest” for 10 minutes, it restarted with only the red triangle alert light remaining on and was able to drive to my dealer service (about 40 miles) with no incident. The diagnostic code indicates that the inverter has failed, but the technicians are not able to confirm that this is the problem, since the system is now running. I was able to drive it home with no problems or warning lights. As this is a $4,000 part, I would like to know if this is a likely, or even possible, scenario for an inverter failing, or could it be another problem? Note: 3 months ago the auxiliary battery was replaced following the same circumstances.
View 13 RepliesIf you drive in 100 degree F weather, use your AC and drive up steep hills. Check your inverter coolant system for trapped air. The inverter pump cannot pump air. I had the LSC about 6 months ago and apparently the mechanic rushed the job and there was still an amazing amount of air in the system, I did this yesterday. Today I checked it again and no more air showed on my clear plastic tubing. Although I had to top the reservoir with 2-3 more ounces, so air could have expelled out of the reservoir and I would not notice it.
View 5 RepliesHaving seen the rather catastrophic outcomes that are possible with inverter coolant pump failure, I've thought a bit about adding a flow sensor in the coolant path. I even went so far as to buy a flow sensor, which would probably do the job. However, it's somewhat heavy, and then there's the plumbing job to take care of. Seemed somewhat challenging to pull off.
Since this aborted endeavor, I began thinking about ways to detect surface turbulence at the top of the coolant tank, and am now thinking that might be easier to pull off, even if it requires programming a PIC to do the monitoring. My current thought is to install an LED and optical sensor in the cap, and measure light intensity received.
I'm a new owner of a used 2008 Prius. Car only has 67K miles and other than the leak, appears to be in good shape.
I noticed the coolant was low in both reservoirs, filled it up (with the proper SLLC), but a day or so later the check engine light came on. Took it to mechanic (dealer is 2 hours away), he read and cleared the codes, then found the leak. Appears to be leaking where the lower hose attaches to the pump, so not sure if it's the pump or the hose that's the problem. I've also noticed that the pump seems a bit noisy for a few minutes after shutting off the car (of course, I'm new to the Prius so not totally sure what "normal" sounds like).
I have a big red triangle on the pump is making noises not loud noises sounds like it's operating correctly there is no turbulence in reservoir and when I squeeze the hose the level in the reservoir goes up-and-down which leads me to believe there is no blockage in the pipe coming out of out of the pump.
My handheld scanner and torque on my android tablet only gave me my oxygen sensor code which I know about and I'm going to replace when the weather gets hot I am wondering if the coolant pump would throw a code that these devices would be able to pick up or do I need to go to the dealer or find a shop which is capable of reading the HYbrid codes?
After the warning light & triangle went on in my 2003 Prius, it turned out the inverter pump was bad. It was replaced. Now I am steadily losing MPG as I drive the car. From before the replacement, it has gone from 42 - 44 down to 36. This is in a few days time.
After I got home, I saw that the dealer put on the service ticket that the car might need a new inverter. There was no reason stated for that, and the service rep never mentioned it. In fact, the service rep said that the hybrid system would not be damaged if I drove the car with the warning light, since the hybrid system would shut itself off before any damage would be done.
There is a small leak in the radiator but on inspection, the coolant level is full (actually, while still hot, it is overfull), so I don't think that is the problem, at least not yet.
In service manual doesn't show the limit time to change the water pump of inverter unit. What is the limit time or limit mileage for change it?
Example, engine's water pump has the limit around 200,000 Km(125,000Mile). But why inverter water pump no limit using time?