I pulled off I40 to check my tires. I was getting some side to side wobble. I didnt see anything wrong and restarting got no power only light was parking led very dim. After a while power was back. I started up to the red triangle. Now I'm sitting in ready mode not wanting to shut down. 4 bars. Torque indicates no error codes
View 19 RepliesI turn the car off and 1 of 3 things happen.
Nothing and everything is fine.
It restarts itself instantly and everything is reset ( radio stations, gas gauge, MPG info )
I shut the door and start to walk away and it restarts ( and everything in 2 )
Just like number 2, everything just resets ( it looses it's memory) but it doesn't restart.
Or I get in the car and nothing happens at all. I sit there push the power button NOTHING, no lights, no panel lights, no response whatsoever. At this point I usually just wait and keep pushing it until it finally starts. Sometimes if I shut the door hard it will come back to life, but not always. My first thought was the 12v battery, but I ran the checker on the car and it seems fine, I also had it checked at and they said that it was fine.
I feel like the car is possessed or something. It doesn't always happen but today it happened 8 times, and that's just effing annoying.
I'm getting the triangle &a red power light and the word "problem" on the display. No codes show up. Car won't start anymore. I went to check mode pushing the display and lights on off 3 times to check the battery.
I was able to turn it on once (after disconnecting the battery and reconnecting it) and the 12 v read 14.7
In diagnosed mode and no load It reads 12.3. It reads 11.8 under load (pushing power bottom again but engine still off).
2008 Prius with 284,000 miles-never had problem. Now, started car, no power steering (red triangle). Ordered new power steering control from ebay, went out of town for 10 days. Return, car is DEAD! Trickle charge via fuse block, get car started finally, still no P/S, but it shows charge then shuts engine off. Start and it does same thing.
View 1 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 2005 Prius with 110k. Yesterday, red triangle and check engine light came on and I lost power while driving...SCARY. Took it by dealership. They called this am and said it needed a new HV-ECU and that would cost $800. The error codes they gave me were P0A78 and P0A94. Anything else I should ask them to look at? I'm wondering if the HV ECU is something I could buy used and install myself? I'm not a mechanic but am comfortable with most DIY projects.
View 10 RepliesPurchased a used 2006 prius with ~180K miles on it from south bay a few months ago. At the time of purchase the guy warned us that it 'ate' motor oil.
After 2 months of driving without issues (driven couple of hundred miles), on an uphill road the engine overheats and throws the red triangle, vsc and check engine lights on the dash, along with loss of power. After cool down I check oil level and sure enough it is low, since this is on top of a hill we essentially coast all the way back home without any real issues. Once home I top up the oil. I do a test drive around the block without issues (no loss of power) though the check engine/red triangle/vsc lights are still on. But after I take it for a longer drive the loss of power returns.
Since my bluetooth obd2 connector wasn't working I borrow one from my friend and try to get a read. Unfortunately the thing puts out no obd2 error codes. Living in the bay area I apparently cant just take it to an autozone, to get code readings. I take it to meineke auto repair, they too are unable to get an obd2 read, and want to charge me $100 for a full reading, which I decline.
I do a few diagnostics steps including 'resetting' the computer by leaving it off of the 12v battery for a few mins, this clears the red triangle et al on restart. I do a test drive, at first everything is working just fine, but after about 10 mins or so of driving the red triangle/check engine/vsc lights returns, along with loss of power. (under ~20 mph only, cant go uphill).
Take it to a mechanic and they come back with code: "APOA92. Trans Axel issue - MG1 performance is off. Measured torque is different than executed torque, enough to be a problem. 95% sure it is the transmission." I still haven't checked the 12v battery.
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.
The 2007 my wife drives has no power assisted steering as of yesterday. This afternoon I drove it around the neighborhood and yup, its like driving a 42 DeSoto.
The red triangle is on the dashboard
NO CEL
NO MFD message - everything is normal
Plugged in my ScanGauge II and there are no DTC codes. Am I correct that this is a failed steering ECU?
My 05 prius (105k) has been running great. Today I was driving up a mountain, approx 70 mph with ac full blast, when all of a sudden I lost all power. The triangle of death came on.
I immediately stopped the car, tried resetting it and no change. I got it towed. Before the tow, the headlights were on and I asked the guy to turn them off twice as I knew the engine might still be on.
Anyways, it got towed approx 4 miles to my house, and the vehicle was on.
I have a 2005 Prius that has been very reliable! With the exception of oil changes, brakes & tires I've only needed to replace the Inverter Cooler Pump, which was under recall (about 40K miles ago). Without any prior problems, the triangle of death came on along with the other dash alarm lights. I noticed an immediate great power loss & the fan behind the rear seat came on.
I stopped the car & let it sit about 30 minutes. It started right up & I drove it home. It felt sluggish & the max was 50 or so , I didn't want to push it, so I stayed below 45 mph. It had very little power, the engine ran constantly, with no battery assist. The drive home was approx 40 minutes. When I tried to start it a few hours later, it started immediately. The warning lights are still on, it runs rough upon start and the rear fan comes on immediately.
I have a 2008 Prius, with SKS and Nav, and 103,000 miles on the odometer. I bought it from the original owner in 2010. So far it has been trouble free, with just oil changes and scheduled maintenance.
When I turn power on, I get a red triangle with exclamation point. Also a row of yellow indicator lights. Also along the top of the LCD display there is a red car shape with an exclamation point on it.
I followed the procedure for checking the voltage of the 12v battery using the diagnostic screens, using the procedure at weird-stuff-happening-mpgs-dropping-test-the-battery.73400/and I got 11.8 volts.
Since it seemed likely that my problem is related to the (original OEM) 12v battery, which is now 6 years old, I took my handy jump-start battery thing (see photo below) and attached its red alligator clip to the positive post under the hood, and the black clip to the frame. I hoped that would allow me to start the car, but it did not start. The error lights on the dash were unchanged.
Question 1. Does the fact that the symptoms remain the same after I have connected my jump-start battery mean that the problem I'm having is NOT my 12v battery?
I then hooked up my cheap OBDII code scanner (see photo below) and checked for codes. It found none.
Question 2. Does the OBDII scanner not finding any codes have any importance? When people write about having their car towed to the dealer and having error codes read there, does that refer to OBDII codes, or are they referring to some other type of codes that can only be read by a dealer?
While I was in the diagnostic screens, I found three screens of error codes. The screens are called DSP-AMP, EMV, and NAVI. See 3 photos below.
Question 3. Do these error codes have significance?
Had a warning flash up last night that I've not seen before. Had just done a reasonably long run from an airport with 3 burly guys and their luggage. Just as I was pulling up to their hotel the car did a continuous beep and flashed up the warning "Turn Power Off" and flashed the yellow triangle. When I was stopped I was in Park and it was still beeping and flashing this warning.
View 18 RepliesMy red triangle light came on! and the PS light came on the square screen and my power steering is in the dumps (doesn't work).
Where would be the first place to check? could it possibly be the accessory belt that came off/broke? is it hard to access/replace that?
During a highway trip three months ago, my 2004 Prius suddenly lost engine power, the red triangle Master Warning light came on accompanied by a warning sound, and then the Hybrid System Warning sign appeared on the Multifunction Display. I pulled off to the side of the road and stopped. I turned the car off and then tried turning it on again. Engine power was restored although the warning lights remained. We took a chance and carried on with our trip. The same sequence of events reoccurred about 10 times on our 1,300 km journey. I took the car to a Toyota dealer where they found a C2318 DTC. They checked the battery and the HEV fuse but could not locate the problem.
We returned home and on the way the same thing happened a few more times. My service manual noted that the description for C2318 is Low Voltage Error (Power Supply Malfunction) and the trouble areas are HEV fuse, IGCT relay, Wire harness or connector, or Auxiliary battery. Since the car was nearly 7 years old I thought I had nothing to lose by replacing the battery, which I did. However, on a short 150 km trip last week the problem appeared again, once while approaching our destination and once when we were almost home. There seems to be a pattern in that the problem appears every 150 km or so of highway driving. It has never done it while driving in the city.
So I replaced my battery about 20k miles ago, so I know that's fine. I always throw a P0420, but I'm told that's fine too. So I was driving, and I lose power suddenly. The red triangle comes on, and I plug my scangauge II in, which tells me it's P0121, or the throttle body sensor. I reset the codes to make it home - my battery DID charge just fine on the way home, making it up to a 63.5 state of charge. Now when I start it, and press the gas, it tends to rev up, rev down, and repeat. I haven't gotten the red triangle again yet but I also haven't driven it since then.
View 2 RepliesI've got a pioneer avic d3 in the car, and for a week or so it was restarting itself while I was driving. Now it doesn't work at all. The screen has power, but is blank. The buttons don't work at all, and there is no sound.
I took it out and tore apart the center console to do some sleuthing, and I found that a ground wire was connected to one of the points right in front of the shift linkage. The other end has a connector, but it wasn't connected to anything.
My navigation out of no where has been restarting on its own meaning screen goes black and warning comes up again. I have had car since November and it only started happening last week and I have 6k on car. It will actually restart on its own twice and this has occurred 3 times so far.
Now not sure if I am dreaming this but if I shut the car off with NAV screen split with home screen I always remembered it staying that way even when I restarted car. Now however regardless of what I leave it when I restart car always shows full map. I am thinking did they push an update to NAV which is also causing the glitch in it restarting? I haven't brought it dealer since new so I know no one updated manually but I can swear home screen would stay split if I left it that way.
Having issue with NAV restart while driving, I see it was occurring in IS forum but no fix. Also it is very cold but car is garaged and every time I been driving already for a bit, another thing maybe it's my iPhone because it always plugged in when it has occurred.
Occasionally when I start my car my phone won't connect and the only way to get a connection is to restart the car. Trying to connect through the system doesn't work.
Sometimes I have to restart the car several times to get a connection.
The phone is an iPhone 6.
I have a 2000 Nissan Frontier that is having issues. I had the distributor replaced and the knock sensor. The day I got it home it started having a weird starting issue. It has always started first crank super easy & strong. Runs GREAT.
When the truck is cool it starts right up but, when I've been driving around for a bit and turn it off, if it's a short stop starts right back up, some hesitation. If I stop for 15-45 mins it doesn't want to start. I can crank it all day and it wont start and gives a little kickback, if I crank too much the engine will smoke a bit, spits and sputters when you turn the key off. The longer it sits before I try to start it the worse it gets... around one hour is the worse. - Finally figured out if I try cranking it over several times, turn off the key and wait literally one to two minutes it starts right up super quick and strong just like when it's cool. So random and weird.
No warning lights & Nothing shows up when hooked up to the computer, fuel pump checked out OK.
So my car is currently getting serviced and getting a new nav screen/system installed.
2014 IS350 F, Having this issue of their screen freezing then restarting?