Combination Meters that stop at 299,999 miles, Who's affected and what you can do about it.

Discussion in 'Gen 2 Prius Main Forum' started by Texas Hybrid Batteries, Jan 10, 2017.

  1. Michciu94

    Michciu94 Junior Member

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    As you can see there is no TPMS light, and this is facelift becouse ,,Ready” is on the right side.
     
  2. OBJUAN

    OBJUAN Member

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    I upgraded my 2005 base IP cluster to a 2009 but you have to upgrade the other side LED panel too.
     
  3. Michciu94

    Michciu94 Junior Member

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    So yesterday my odometer stuck at 299 999. As you can see at my previous post I’ve bought a complete odometer from 2007 lift. This is EU version so it don’t have a second connector at odometer and my odometer doesn’t have TPMS light - I think in EU TPMS was an option to buy. After connection new odometer everything works just plug and play :) I have also add a 100uF capacitor to ,,new” cluster to prevent a blackout issue. I have job all done in about 4 hours with coffee brake at home and dashboard clean :D
     
  4. oschn

    oschn Junior Member

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    Apparently there must be some way that pre-facelift odometers can go beyond 299,000. Any explanation or ideas how this was possible?
    See for yourself (timecode 0:21):
     
  5. dolj

    dolj Senior Member

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    This limitation was addressed in the 2006 facelift Gen 2.

    The usual way to 'fix' the problem in a 2004-2005 Gen 2 is to retrofit the light cluster and combination meter from a 2006-2009 in the 2004-2005. The only modification that is required is the TPMS LED need to be removed from the light cluster as TPMS was introduced in the 2006 facelift and if not removed stays illuminated.
     
  6. oschn

    oschn Junior Member

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    @dolj yes, but the meter from the 2006 facelift has a different design. What you see in the video clearly is the pre-facelift meter, yet somehow it goes beyond 299,999. So apparently there is a way the old meters can be fixed as well.
     
  7. OBJUAN

    OBJUAN Member

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    Texas Hybrid pretty much covered the issue at the beginning of this thread.
     
  8. James Analytic

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    Looks like. I think the wires with pins need to be relocated in the M13 connector appears. I was just reviewing and summarized what I found so far here: Multifunction Display Is Out/Not Working | PriusChat

    Any new updates regarding @Texas Hybrid Batteries ?
     
  9. oschn

    oschn Junior Member

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    No, they didin't. They just put in a new-style cluster (mileage on the right). The video I posted, however, shows the old-style cluster (mileage on the left) going beyond 299,999:

    upload_2024-12-22_15-40-18.png

    Could it be a swap of just the display of the old-style to the new-style pcb?

    @Texas Hybrid Batteries any ideas?
     
    #68 oschn, Dec 22, 2024 at 9:40 AM
    Last edited: Dec 22, 2024 at 10:40 AM
  10. DMC-5180

    DMC-5180 Active Member

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    Why does the Odometer show KM and the Speedometer indicate MPH. When you switch between measuring systems, shouldn’t both show the same, measuring standard?

    At least when I switch between standards in any of my other digital dash vehicles the odometer moves with the standard.

    My 2005 Prius hit the 299,999 wall years ago. Unfortunately, 5 years ago it suffered a fatal blow with a Deer at (70 mph).


    iPhone ?
     
  11. oschn

    oschn Junior Member

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    I think that's the Canadian variant: the YouTube channel from where I got the video from lists Canada as its location. And Canada uses metric system for distances and speed. But as many people drive across the border to the USA the Canadian model supports switching the speedometer to MPH.

    Likewise, the UK model uses MPH by default but can be switched to km/h.

    That must have to do with the design/programming of the combination meter in the Prius. I just stores the odometer value as a number. Now I don't know exactly if the unit (miles vs. km) is stored in the EEPROM or is part of the microcontroller firmware. But the firmware doesn't do any conversion between miles or km. In the end it's just a design decision. And as you can see from the images in the first post: it depends on the display version if it has a LED for "MI" or for "KM".