I called into a Toyota Garage and they put a test unit on it, and that is one that did not clear. The warning is the icon with the whole car and an excailamation (!) on it.
I just phoned the Garage .and they have done some research, and determined it is a ??niform charge request"which probably means the battery is on the way out ..
If you're away for too long, the HV battery (NiMH) SOC might have dropped to a critically low level for it to be able to provide enough power for MG1 to crank ICE.
Have you tried to jump start the HV battery? Your model, NHW10, is the only Prius model that has an onboard Inverter capable of charging the HV battery from a 12 volt source. The later Prius, NHW11 & NHW20, do not have this Inverter and their HV batteries cannot be jump started in this way.
In the file section also, under "NHW10 scanner fault codes" you will find the Toyota technicians Hybrid system fault code sheets for this cars hybrid system, including the "code 2579.pdf" file on how to deal with the C2579 (red triangle of death) using the S2000 scan tool with the S2000Priusflash card fitted.
In short, this was a quick fix solution to the long-term problem of the traction batteries gradual demise. Once there is a difference of over 1 Volt between the battery modules that the battery ECU fails to balance out, then the code C2579 is invoked and a fail-safe program is switched on to protect the battery (you may notice that less turtles appear after this happening) when the triangle comes on.
The garage technician would then fit the S2000 scan tool, access the menu ( DS00412.JPG) and carry out an equalization charge. This is a quick boost charge to 100% capacity using the on board ICE and MG2, IRRESPECTIVE of how much heat it generates (see code2579.pdf file instructions) .
During which the fail-safe program is also automatically switched back off. After which the technician would then carry out an adjustment to the SOC settings, also see photo DSC00412.JPG) to prevent any more likely hood of any over heating or imbalance until the next time. I suspect that if this "quick fix" did not work then, Yes, the battery would have been removed, and send back to Panasonic for rejuvenation.
If you look at the "battery scan.doc" file you can see settings for "off board charging", and equalization of channel 1&2 charging that don't appear on the S2000 scan tool menu's.
So NO, I do not think that doing an S2000 equalization charge is better than a full strip down and rejuvenation, but it is a dam site quicker and safer to the technician.
Plus it switches off the fail-safe protection programming that is part and parcel of the red triangle scenario, which may be affecting your economy if its on. The trouble with doing rejuvenation to a battery pack on its own, is that you are stuck with the set adjusted SOC settings as is already set up in the ECU by the last Japanese technician whom accessed it, also if the Red triangle is still lit, then the protection program is still active.
In short, this is a highly software driven car, and whether you use the S2000 scan tool to do an equalization charge, or if you have the courage to do a full and more dangerous strip down and rejuvenation yourself, then there is still benefits to switching off the red triangle and adjusting the SOC readings if you can access an original S2000 scan tool with flash card, to do this.
At the end of the day though, we should all do what ever it is that we can do, to keep these " what I think" are wonderful cars, Going for as long as we can. By hook or by crook is nessessary, But please be safe.
kevin Posted by tbc at 11:04 PM Labels: S2000prius 1 fail safe mode
片側３車線の道路の真ん中で突然動かなくなり、その後なぜかゆるゆると動いたので、路肩に寄せたとのこと。
ともかくどうしようもないのでトヨタに電話して迎えに来てもらいました。
かみさんが送ってもらって帰り着いたちょっと後で、「修理の間、代車としてお使いください」と同じ色のプリウスをセールスの方が届けてくれました。おかげで、用事もできたし、ちょっと違う雰囲気でプリウスに乗れたのでそれはそれでよかったのですが、故障の原因が電力系統のコネクタの接触不良だったそうで、パソコンの初期不良のようなものかと思いますが、高速道路で故障しなくてよかったなぁと後になってひやりと感じました。
http://www.priusmania.net/trouble/kosho.htm
2011/2/20(日) 午前 7:00
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C2579:
1st Gen Prius. Warning indicator showing. Code C2579
http://www.justanswer.com/toyota/2d9wc-1st-gen-prius-warning-indicator-showing-code-c2579.html
I called into a Toyota Garage and they put a test unit on it, and that is one that did not clear. The warning is the icon with the whole car and an excailamation (!) on it.
I just phoned the Garage .and they have done some research, and determined it is a ??niform charge request"which probably means the battery is on the way out ..
2011/2/20(日) 午前 7:04
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If you're away for too long, the HV battery (NiMH) SOC might have dropped to a critically low level for it to be able to provide enough power for MG1 to crank ICE.
Have you tried to jump start the HV battery? Your model, NHW10, is the only Prius model that has an onboard Inverter capable of charging the HV battery from a 12 volt source. The later Prius, NHW11 & NHW20, do not have this Inverter and their HV batteries cannot be jump started in this way.
2011/2/20(日) 午前 7:08
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A NZ senior lecturer, R J McLeod, has a step-by-step instructions on how to do it.
12V_2_HVcharging.zip
Alternatively, you may show this document to your dealership and pay them to do it for you.
http://priuschat.com/forums/attachments/gen-ii-prius-technical-discussion/7142d1200163709-1998-mk1-prius-codes-need-help-12v_2_hvcharging.zip
http://priuschat.com/forums/gen-ii-prius-technical-discussion/41645-1998-mk1-prius-codes-need-help.html
2011/2/20(日) 午前 7:08
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C2579:
In the file section also, under "NHW10 scanner fault codes" you will find the Toyota technicians Hybrid system fault code sheets for this cars hybrid system, including the "code 2579.pdf" file on how to deal with the C2579 (red triangle of death) using the S2000 scan tool with the S2000 Prius flash card fitted.
http://thegreenenergy.blogspot.com/2010/02/more-on-s2000-from-kevin.html
2011/2/20(日) 午前 7:11
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In short, this was a quick fix solution to the long-term problem of the traction batteries gradual demise. Once there is a difference of over 1 Volt between the battery modules that the battery ECU fails to balance out, then the code C2579 is invoked and a fail-safe program is switched on to protect the battery (you may notice that less turtles appear after this happening) when the triangle comes on.
2011/2/20(日) 午前 7:13
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The garage technician would then fit the S2000 scan tool, access the menu ( DS00412.JPG) and carry out an equalization charge.
This is a quick boost charge to 100% capacity using the on board ICE and MG2, IRRESPECTIVE of how much heat it generates (see code2579.pdf file instructions) .
2011/2/20(日) 午前 7:15
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During which the fail-safe program is also automatically switched back off. After which the technician would then carry out an adjustment to the SOC settings, also see photo DSC00412.JPG) to prevent any more likely hood of any over heating or imbalance until the next time. I suspect that if this "quick fix" did not work then, Yes, the battery would have been removed, and send back to Panasonic for rejuvenation.
2011/2/20(日) 午前 7:17
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If you look at the "battery scan.doc" file you can see settings for "off board charging", and equalization of channel 1&2 charging that don't appear on the S2000 scan tool menu's.
So NO, I do not think that doing an S2000 equalization charge is better than a full strip down and rejuvenation, but it is a dam site quicker and safer to the technician.
2011/2/20(日) 午前 7:18
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Plus it switches off the fail-safe protection programming that is part and parcel of the red triangle scenario, which may be affecting your economy if its on.
The trouble with doing rejuvenation to a battery pack on its own, is that you are stuck with the set adjusted SOC settings as is already set up in the ECU by the last Japanese technician whom accessed it, also if the Red triangle is still lit, then the protection program is still active.
2011/2/20(日) 午前 7:19
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So you will not reap the full benefit of the rejuvenation. This is OK if your SOC setting is set high, but not if it is set at a low %setting.
2011/2/20(日) 午前 7:26
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In short, this is a highly software driven car, and whether you use the S2000 scan tool to do an equalization charge, or if you have the courage to do a full and more dangerous strip down and rejuvenation yourself, then there is still benefits to switching off the red triangle and adjusting the SOC readings if you can access an original S2000 scan tool with flash card, to do this.
2011/2/20(日) 午前 7:27
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At the end of the day though, we should all do what ever it is that we can do, to keep these " what I think" are wonderful cars,
Going for as long as we can. By hook or by crook is nessessary, But please be safe.
kevin
Posted by tbc at 11:04 PM
Labels: S2000 prius 1 fail safe mode
2011/2/20(日) 午前 7:30
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Ni-MHバッテリ ΔSOCについて
プリウスのNi-MHバッテリついての情報です。
（今回はマニアックです）
↓以下も確認していただけると、よろしいかと思います。
▼バッテリリフレッシュモード
おさらいですが、
プリウスのバッテリは
定格：1.2Vのセルが168本直列に接続され、201.6Vとなっています。
（6セルで１モジュール構成なので、28モジュール直列接続）
さて、SOC（State Of Charge：充電容量）ですが、
168本のそれぞれのセルで、ばらつきが発生することが懸念されます。
http://www.priuslife.com/kentou/prius42.html
2011/2/20(日) 午前 7:45
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プリウスで妄想ドライブの巻（３）・・・電池はなま物、当たり外れは時の運
やはりハイブリッドの命は電池。新型プリウスでは実績とコストで有利な、ニッケル水素電池を踏襲した。また、セルの搭載方法と冷却方法の改善でさらに小型化に成功している。
改めてその構造をみると、６セルが１モジュールで、２８個のモジュールが直列に接続され、201.6Vの公称電圧となっている。
ハイブリッド車は、頻繁に充・放電が繰り返される。電池のＳＯＣ値は電池監視ユニットで管理され、適切な充・放電が行われるよう、パプリウスで妄想ドライブの巻（３）・・・電池はなま物、当たり外れは時の運
やはりハイブリッドの命は電池。新型プリウスでは実績とコストで有利な、ニッケル水素電池を踏襲した。また、セルの搭載方法と冷却方法の改善でさらに小型化に成功している。
改めてその構造をみると、６セルが１モジュールで、２８個のモジュールが直列に接続され、201.6Vの公称電圧となっている。
2011/2/20(日) 午前 8:05
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http://minkara.carview.co.jp/userid/831694/blog/19584730/
2011/2/20(日) 午前 8:08
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