Master Warning Alert

jkark · 02-23-2005, 08:16 PM

Okay, a funny thing happened to me on the way home tonight. I was stopped waiting to make a left turn when my 2005 Prius with less than 5K miles on it shuddered and then a big red triangle appeared on the dash with an exclamation point in the middle... this was followed immediately by the highly descriptive "Problem" on the MFD with the icon on the upper left of the MFD showing a car with exclamation point in the middle. I'm pretty sure that the cold weather warning icon came on at the same time (although it reported 37F outside).

I pulled over as soon as I could (about 10 feet of travel) and powered the car all the way down. I waited a few miinutes and then powered up.

To my horror, the red triangle and highly descriptive "Problem" message were still there complete with the icon and the exclamation points. I thought the exclamation points were appropriate and descriptive but what the heck was going on I wondered.

To my further horror, the owners manual indicated that this particular icon meant that I should take the car into a Toyota *immediately*!!! Yikes!

To my even greater horror, this error seems to indicate an electrical problem with hybrid synergy drive. Oh no! A warp core breach!!

So, I drove the two miles home as carefully as I could under impulse power... (mostly downhill).

I powered down the car. Locked it. Opened it up again & powered up. Still the red triangle - RATS.

Checked the oil - a little dirty but ok (over filled of course). With the hood open I noticed a high pitch whine I hadn't heard before. It sounded electrical, like when an amp is powered or when the warp core is about to blow...

I powered the car down and went inside. Talked to my dealer who advised that I bring the car in while they set up a rental. I went out again about 30 min later to drive to the dealer only to find that the error message had vanished. No whines or abnormal sounds. I carefully drove around and immediately leaped on the rationalization that this was just a sensor glitch.

The batteries were at half which seemed odd so I decided to drive around a little to see if the error would come back. It didn't. Everything seems A-OK now and the battery charged to green (less one bar) pretty quickly. I called the dealer to let the tech know I wouldn't be coming in tonight but that instead we could add this to the regular maint scheduled this Sat. - he thought that I should come in anyway as even though the error went away he didn't want me to end up stranded. So I did and now I am wondering what happened.

I will keep the group informed and let you know whatever cimes up in the logs. Any advice is appreciated.

thanks!

Kyle Pehrson · 02-23-2005, 08:31 PM

It needs a ecu reflash EL047-04 It's a very easy process the reprograming only takes 22:22 min. & extra 4min if the 34705100 cal is not in the scan tool. You can drive it after a restart or two. If you have any more questions.
you can find the TSB on the top of this Forum.

Kyle Pehrson · 02-23-2005, 08:38 PM

If there is any thing else it will have stored a code in one
of the ecus.
I guess I should of read the WHOLE book. don't have any idea what that noise was.
sorry I got carried away

cybele · 02-23-2005, 08:51 PM

I had the hybrid system warning light come on, though there was nothing wrong with the car as far as Toyota could tell.

My car has had all of its appropriate software updates.

They pulled the error code and it was a "no start code" but the car did start and run. They cleared the code. They said that they talked to Toyota about it and they're aware of the problem and are working on a software patch.

So, keep asking every time you take the car in, and if you ever get another code, be sure to take it in, even if it clears itself so that they can pull the code and document it.

jkark · 02-23-2005, 09:20 PM

thanks all - I will discuss with the tech and confirm that I have all the approp updates. My Prius was delivered in Nov04 so I guess that makes its build date pretty current but I will double check all of that in any case.

I'm having major problems with bluetooth voice quality in contrast to what other folks are experiencing so I'm wondering if this related to a general electrical problem. Are there TSBs for bluetooth bandwidth I wonder? Is there a master list of TSBs online somewhere?

Kyle Pehrson · 02-23-2005, 10:07 PM

I don't have bluetooth. But I do have a T.S.B. That just came out That may not be out on the Priuschat.

Kyle Pehrson · 02-24-2005, 12:58 AM

http://www.priuschat.com/forums/bluetooth-...-ampa-vt62.html

Kyle Pehrson · 02-24-2005, 01:05 AM

http://www.priuschat.com/forums/motorola-v...?highlight=v710

Kyle Pehrson · 02-24-2005, 01:13 AM

Hi This should keep you busy for a wihile.
http://www.howardforums.com/forumdisplay.p...?s=&forumid=254
good luck if you have questions just ask.

DanMan32 · 02-24-2005, 11:00 AM

Quote:

It needs a ecu reflash EL047-04 It's a very easy process the reprograming only takes 22:22 min. & extra 4min if the 34705100 cal is not in the scan tool. You can drive it after a restart or two. If you have any more questions.
you can find the TSB on the top of this Forum.

Shouldn't an '05 already have this flash?

02-23-2005, 08:16 PM	#1
jkark Join Date: Nov 2004 Posts: 31 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Master Warning Alert Okay, a funny thing happened to me on the way home tonight. I was stopped waiting to make a left turn when my 2005 Prius with less than 5K miles on it shuddered and then a big red triangle appeared on the dash with an exclamation point in the middle... this was followed immediately by the highly descriptive "Problem" on the MFD with the icon on the upper left of the MFD showing a car with exclamation point in the middle. I'm pretty sure that the cold weather warning icon came on at the same time (although it reported 37F outside). I pulled over as soon as I could (about 10 feet of travel) and powered the car all the way down. I waited a few miinutes and then powered up. To my horror, the red triangle and highly descriptive "Problem" message were still there complete with the icon and the exclamation points. I thought the exclamation points were appropriate and descriptive but what the heck was going on I wondered. To my further horror, the owners manual indicated that this particular icon meant that I should take the car into a Toyota immediately!!! Yikes! To my even greater horror, this error seems to indicate an electrical problem with hybrid synergy drive. Oh no! A warp core breach!! So, I drove the two miles home as carefully as I could under impulse power... (mostly downhill). I powered down the car. Locked it. Opened it up again & powered up. Still the red triangle - RATS. Checked the oil - a little dirty but ok (over filled of course). With the hood open I noticed a high pitch whine I hadn't heard before. It sounded electrical, like when an amp is powered or when the warp core is about to blow... I powered the car down and went inside. Talked to my dealer who advised that I bring the car in while they set up a rental. I went out again about 30 min later to drive to the dealer only to find that the error message had vanished. No whines or abnormal sounds. I carefully drove around and immediately leaped on the rationalization that this was just a sensor glitch. The batteries were at half which seemed odd so I decided to drive around a little to see if the error would come back. It didn't. Everything seems A-OK now and the battery charged to green (less one bar) pretty quickly. I called the dealer to let the tech know I wouldn't be coming in tonight but that instead we could add this to the regular maint scheduled this Sat. - he thought that I should come in anyway as even though the error went away he didn't want me to end up stranded. So I did and now I am wondering what happened. I will keep the group informed and let you know whatever cimes up in the logs. Any advice is appreciated. thanks!

02-23-2005, 08:51 PM	#4
cybele Former Moderator Join Date: Dec 2003 Location: Los Angeles Posts: 406 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: Master Warning Alert I had the hybrid system warning light come on, though there was nothing wrong with the car as far as Toyota could tell. My car has had all of its appropriate software updates. They pulled the error code and it was a "no start code" but the car did start and run. They cleared the code. They said that they talked to Toyota about it and they're aware of the problem and are working on a software patch. So, keep asking every time you take the car in, and if you ever get another code, be sure to take it in, even if it clears itself so that they can pull the code and document it. __________________ 2004 Tideland BI (#6)

02-23-2005, 09:20 PM	#5
jkark Join Date: Nov 2004 Posts: 31 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Re: Master Warning Alert thanks all - I will discuss with the tech and confirm that I have all the approp updates. My Prius was delivered in Nov04 so I guess that makes its build date pretty current but I will double check all of that in any case. I'm having major problems with bluetooth voice quality in contrast to what other folks are experiencing so I'm wondering if this related to a general electrical problem. Are there TSBs for bluetooth bandwidth I wonder? Is there a master list of TSBs online somewhere?

02-23-2005, 10:07 PM	#6
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Bluetooth TSB EL01-05 I don't have bluetooth. But I do have a T.S.B. That just came out That may not be out on the Priuschat.

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02-23-2005, 08:31 PM	#2
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	It needs a ecu reflash EL047-04 It's a very easy process the reprograming only takes 22:22 min. & extra 4min if the 34705100 cal is not in the scan tool. You can drive it after a restart or two. If you have any more questions. you can find the TSB on the top of this Forum.

02-23-2005, 08:38 PM	#3
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	If there is any thing else it will have stored a code in one of the ecus. I guess I should of read the WHOLE book. don't have any idea what that noise was. sorry I got carried away

02-24-2005, 12:58 AM	#7
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	http://www.priuschat.com/forums/bluetooth-...-ampa-vt62.html

02-24-2005, 01:05 AM	#8
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	http://www.priuschat.com/forums/motorola-v...?highlight=v710

02-24-2005, 01:13 AM	#9
Kyle Pehrson Prius Master Tech Join Date: Feb 2005 Location: S.L.C. Utah Posts: 122 My Car: Model: Package: Thanks: 0 Thanked 0 Times in 0 Posts Friends: 0	Hi This should keep you busy for a wihile. http://www.howardforums.com/forumdisplay.p...?s=&forumid=254 good luck if you have questions just ask.