Prius (2004-09) :: At Start Up CEL Came On - MPG Won't Show Intermittently?


Jul 20, 2013

Our Prius has a funny quirk, one that we can live with because it only does it occasionally, but is still quite annoying when it happens. Sometimes, when the car is started, it does not turn on the electronics correctly. Most of the stuff still works, like the radio, GPS, etc. But when it does this, the only light that shows on the console is the check engine light (which is on for some coolant sensor that we don't need to fix right now) is the only thing lit. Nothing else, including the gas gauge and odo and MPH gauge, lights up. On the Consumption screen, it also does not register miles driven, avg MPG, and does not track anything. The energy screen works fine, although it does not show current MPG, as if it doesn't really know the car's all the way on.

Only totally random stuff makes it stop, such as driving a short distance, turning the lights on, entering maintenance mode, or restarting it. (This problem usually prevents the car from shutting down, also, which can be quite annoying.) Fortunately this doesn't seem to affect the car negatively in any was other than not knowing how fast you're going. Dealer didn't pick anything out reading codes, and it doesn't do it all the time (although short starts, such as turning on to roll down windows, usually seem to cause it.)

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Prius (2004-09) :: AC Blower Intermittently Failed To Start Up

I've got a 2005 with almost 300,000 miles and just recently the A/C blower has intermittently failed to start up. However, if I give the console a smack on the driver's side of the nav screen the unit usually starts up.

Now, I am assuming it is the start of an electric motor failure in the A/C Blower unit, however, the blower is apparently located under the passenger side glove box. So I am wondering if that is whee the blower is why does smaking the driver side of the nav screen start up the motor?

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Prius (Gen 2) :: 2004 - HID Headlight Intermittently Fails To Start Even After Bulb Replacement

Around 100k miles, my 2004 prius started failing to light the right headlight. It only happened every now and then, perhaps 5-10% of the time. It seems to fail more often in cold weather. I can always get it to light by turning headlights off and on a 2-4 times.

That seemed to work, but I still get intermittent failures where the right HID doesn't start sometimes. The left always works reliably.

Obviously replacing the ballast should solve this, but that is expensive and I wonder if perhaps there is some connection that has developed a high resistance that could be solved by reseating.

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Prius (2004-09) :: Triangle Show Up And Just Would Not Go Away

My 2006 has about 67,000 miles on it. The other day it began to behave in a very strange way. I had the triangle show up and it just would not go away. I checked all the fluids and they were good. I did notice that there was a new icon I had never seen before. It looked like it was an curved device with a thermometer attached. When I looked it up the suggestion was to go to Toyota right away. So I decided to drive over. As I drove I could hear the fan from the back seat coming on. It was going very fast, so I guessed that the traction battery was overheating. The car would barely drive, no power. Even when I floored it there was very little acceleration.

I got it to the dealer and they gave me a loaner because it the car was recalled due to the accelerator pedal. Later in the day I got a call saying that a couple of ECUs needed to be replaced. The next day I got a call saying the traction battery was bad and would be replaced under the long term warranty. They said I also needed an aux battery. I knew my battery was not charging up to better than 10 1/2 volts dc. They said it would cost $300 installed, so I said I would get back to them.

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Prius (2004-09) :: 2006 - Oil Does Not Show On Dipstick

I have a 2006 with 154,000 miles on it. I usually have my oil changed at Valvoline, but the last time the tech said there was no oil in my engine. He did drain oil out of it and filled with 3 1/2 quarts of oil. It did not show on the dipstick. This last change I did myself and used 3 1/2 quarts of oil, ran it around the block, waited about 5 minutes checked it and it still does not show on the dipstick.

Could I have gotten the wrong dipstick at some point? This one fits and seals good. I now do not want to run very long not knowing what my level is. Can measure the dipstick length? To compare with what I have.

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Prius (2004-09) :: Passenger Side Air Bag Will Show Off And Won't Turn On

I've been trying to trouble shoot this for quite some time now and I still can't figure out why the passenger airbag will show "off" and won't turn "on". This is on a 2006 Package 3. I read a properly functioning passenger airbag light would not indicate "off or on" unless someone is sitting on the passenger seat. Mine will show "off" regardless if there is a passenger or not?

I ran a diagnostic with the MiniVci and everything checked out, no error codes, the Airbag ECU is detecting everything as normal. I did a sensitivity check and the weights were within specs. I don't know where else to look.

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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.

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Prius (2004-09) :: 2008 Gen II - ODO Meter Stuck / Does Not Record Or Show Increase In Mileage

I have recently noticed that the ODO meter of the car does not work i.e. it is stuck at the reading (57735 km) it was on when I got the car and does not record/show the increase in mileage. the trip A and B are working perfectly fine. I took the car to the local Toyota dealer but he has no clue what is wrong with it, the guy there suggested that ECU is working fine but the ODO meter is damaged and needs replacement.

I am not sure what the guy at the dealership suggested is correct because what i think is that if ODO gets damaged then the whole speedo meter should mal function.

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Ford 6.7L Power Stroke Diesel :: 2015 F350 - Gear Indicator Show Intermittently?

I have a 2015 F350, sometimes the info center will show what gear I am in and sometimes it won't. Why or what I can do so it shows all the time?

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Honda - Accord :: 2004 Intermittently Does Not Start

One morning after parking and turning the car off, I tried to restart and it just made a sad attempt. A few minutes later it started, but still seemed to take too long. I took it to the dealer and they said the Alternator needed to be replaced, so they replaced it with a rebuilt alternator (without asking me if i wanted rebuilt or new). Anyway.. when i picked it up it still seems to start a bit slower than normal, but they said that is typical for hondas. A couple of weeks later, I picked up my car from the airport after it sat there for 2 nights. It started slowly but surely. I stopped at store, and then it would not start at all. Barely made any sound at all. no cranking... So i had to have it jump started by a tow truck service.I took it back to Honda and they said everything check out ok, and cannot find any issue.I am afraid to get stranded again. Do I need to buy a new car? This one only has 70k miles !

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Ford - Focus :: 2004 - Won't Start Intermittently

Occasionally my 2004 Ford Focus will not start. I put in the keys and turn them. The lights and radio fire up and there is a click, but the engine won't turn over. To resolve this, I remove the key, open the hood, loosen the battery cable on the positive terminal, wiggle the cable around, and then tighten it back down. I then go back in the car and turn the key. The engine starts. Is there a bad connection somewhere? Should I replace the battery cable?

Long version of the problem: I've been having these problems intermittently for almost a year now. After the first or second time I had the car towed to a local shop. They couldn't figure out what the problem was because the car was starting just fine at the shop. The mechanic said that some of the cables might have shifted around in the towing process. So I tossed an adjustable wrench in the glove box in preparation for the next time. The next day, it happened again. Through some quick trial and error, I narrowed down the problem to be the positive battery cable (or something that's connected to it).

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Saturn - Ion - Starters :: 2004 - Snipping Noise And Car Won't Start Up Intermittently

My daughter's 2004 Saturn Ion3 has had problems starting up for three weeks. Battery was replaced as was the crank shaft sensor. Mechanics cannot make it NOT start so they can't diagnose any more. My daughter goes out in the morning, the car won't start, it just makes a spinning noise, then waits 15 min and sometimes it will start. Sometimes turning the key again right away will cause it to make NO noise at all. What else could be wrong?

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Passat (B6) :: Cannot Start Engine On 1st Try / Red Battery Light Would Show Up

2006 2.0T with 86k miles. Anywho, a few days ago I attempted to start the car up & it felt as if the engine started up then immediately cut off & the red battery light would show up. I then tried to restart it up and it fired up successfully & the battery light immediately went away. well today, i drive it to my grandmothers house and have dinner, come back & fire it up and the same thing happens. only this time i had to try about three times to start it up successfully. I am aware of the whole steering column lock issue but it didnt say this at all on the mfd display screen. is it safe to drive around?

Here's a link : [URL] ....

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Starting - Gasoline :: 2004 Subaru Impreza Turns Over But Won't Start Intermittently

Subaru Impreza 2004 2.5 TS170,000 km

For a couple of months now and every few days, my car turns over nicely but chokes. I can keep the engine running by pressing the gas pedal as lightly as possible without letting the engine stop or rev too high, and after about 15 seconds it stays on on its own. When it's running it runs very smoothly...no knocking or shuddering or poor idling at lights.

So there’s obviously a gas delivery problem at startup. I don’t know if I can but I would love to rule out the fuel pump since it's only at startup (fuel filter is new, battery is new, and sensors have been checked, even during a failure to start scenario) and it runs so well when driving. Also, it won’t start randomly, regardless of temperature, cold start or not, incline, etc. I read that a fuse can have intermittent problems but again it seems to me that it should be properly intermittent, not just at startup. Which leaves the relay and wires.

Now thinking about wiring, a few years ago I noticed I could no longer leave my highbeams on. I could hold the lever and make them stay on, but pushing the lever into the on position no longer works. Also, recently and only once, on a -26 C day, the air compressor was dead when I started the car. After stopping and starting for a half an hour I noticed that it had come back on. Does this sound like it could be connected? Where do I even start to diagnose this starting problem?

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Ford F-150 (2004-2008) :: 2006 - Random Crank But No Start Intermittently

I have a 2006 Ford Expedition with 95,000 miles that has a crank but intermittent no start problem. When it does happen, it will eventually start after one to two tries. I don't have to wait to start it again and I don't have any problems while it is running. Two or three times in the past two months it will sputter out and die (even though I am pressing the gas pedal) right after starting. I'll crank it again and it starts just fine. I have no problems while driving at freeway speeds or around town.

I never had any check engine lights come on so I replaced the battery and the fuel filter. I finally got two codes and replaced the fuel pump driver module and the fuel rail pressure sensor. The codes went off after replacing these two parts. I can hear my fuel pump turn on every time I start the vehicle. I have even taken the entire fuse panel apart to check Relay 303 which is soldered into the circuit board. It is fine and so is every other fuse in the panel.

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Prius (2004-09) :: Alarm Going Off Intermittently

I have a 2004 Prius with 191K miles. When purchased in November of 2008 the 12V battery was replaced (mileage at the time was 70K). Over the last 2 weeks my alarm has been going off daytime, nightime with no regularity.

I have replaced the battery in the FOB (I only have one) and did this yesterday. Last night the alarm went off 4 times between 11pm and 1am until I disconnected the 12V battery.

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Prius (2004-09) :: Shutting Down Intermittently

I just received my Scangauge II. Hooked it up and while under ice throttle it stays on but when I either attemp pulse and glide or straight stealth mode it shuts off? I am in process of reading instructions

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Phaeton :: 2005 W12 Won't Start - Original Battery Show About 14 Amps

I am 150 mi from my service dealer and my 2005 W12 won't start . The dash lights go on , a/c vents open etc, but the keyless start or the key itself does nothing .

I recall that there may be a way to use the Accessory Battery to start the car, but I don't recall the routine. I don't want to have any local roadside service messing around. BTW it is the original battery and shows about 14amps.

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Prius (2004-09) :: 2005 Headlights Intermittently Went Out

I have a 2005 Toyota Prius with HID headlights. One of the headlights intermittently went out and I decided to replace both headlights. I installed Philips DR2 headlights. I successfully installed the passenger-side headlight and checked it and it worked well.

I then proceeded to install the driver side headlight and realize that I installed it upside down. I adjusted the headlight but forgot to plug the receptacle back in before checking the headlight. When I turned on the headlights I heard a sparking sound. Now the passenger-side headlight will not turn on, but the driver side headlight does work. I tried to replace the passenger-side headlight with a new bulb but it still will not work. I also checked all the fuses, but they seem to be okay.

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Prius (2004-09) :: Air Conditioning Works Intermittently

2006 Prius with 58,000 miles. Drive in San Diego and Palm Springs. Earlier this year, the A/C would just cut off, maybe about once a week. The control panel indicated the A/C should be on, but absolutely no function. Drive around for 20 minutes, and all of a sudden, it would come on and work perfectly. It is starting to happen on a daily basis now...sometimes it won't work from start, other times it just cuts out while driving. I can park the car and shut the car off with the A/C working, then come back 30 minutes, and no A/C. It doesn't seem to matter which setting is selected. The control panel accepts all commands, but no function changes when the A/C has shut itself off. Loose connection somewhere? It works about 90% of the time, and blows very cold. When it shuts itself off, no air passes through the vents at all.

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Prius (2004-09) :: Headlights Wink Out Intermittently

After a couple years of people claiming my headlights were out and them working fine when I checked, I finally noticed it wink out intermittently. By now, it's out within minutes of turning it on, though it turns back on when I flip the lights on and off.

This seems like the infamous HID headlight issue. I got notice of a lawsuit a few months back, but I hadn't made any repairs at that time. Is it just too late now?

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