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ABS and other bulbs are on

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by TharakaD, Jul 9, 2015.

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  1. TharakaD

    TharakaD Member

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    certainly ..
    just now i did. pls see attached.
    always this reminds me i cannot find the VIC.. its not placed in standard places. do you know any other place its mentioned
    anyway i have attached the techstream outputs, pls commet its okay.
     

    Attached Files:

    #61 TharakaD, Aug 22, 2015
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    That screen shot is good. So let's see how many miles you can log before a DTC comes back or you notice a problem with the brakes.

    I do not know what "VIC" is.
     
    #62 Patrick Wong, Aug 22, 2015
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  3. TharakaD

    TharakaD Member

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    Woopps
    It's VIN - Vehicle Identification No

    You would have seen it's asking to input VIN every page left top.
     
    #63 TharakaD, Aug 22, 2015
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

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    So you cannot find a sticker which shows the VIN in the engine compartment or on the door sill by the driver's door?

    1. Is it possible that car had been stolen at some point prior to your purchase? Or perhaps the stickers were removed when the car was exported from Japan?
    2. How is it possible for you to obtain a vehicle license for the car or obtain automobile insurance without a VIN?
    3. On older Prius, the VIN is usually stamped on the firewall in the engine compartment. I haven't tried to find this on 3G yet.
     
    #64 Patrick Wong, Aug 22, 2015
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  5. TharakaD

    TharakaD Member

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    Woops you're scaring me

    In Sri Lanka Vehicles are registered with chassis No and Engine No. VIN is not considered.

    So I can connect the dots of possible tampering and damage.

    But I like the car best out of my Nissan Leaf and Suzuki Swift- manual.
     
    #65 TharakaD, Aug 22, 2015
  6. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The VIN (Vehicle Identification Number) relates to the vehicle, not the engine.
     
    #66 Patrick Wong, Aug 22, 2015
  7. TharakaD

    TharakaD Member

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    Oh Noooo.
    at 11.4Km the lights came back and they refused to reset with OBD pin 4&13 reset...

    when again tried resetting at 13.2 km VSC, ABS, (!) started to blink. <see video> [https://app.box.com/s/kxwvd6k3o4ji8nnr4jgzwft3i33ekh2y]

    again tried resetting at 15.2 km, after trying to slow down with cruise control braking to regen; since regen doesn't work with pedal brake when these lights are on. then cruise control light also started to blink. <see video> [https://app.box.com/s/xz6l0wsbbzyoj0yxi2ktvm0u2cddk3hr]

    I do not know whats happening.
    During local TV show yesterday night one hybrid expert said, ABS modulator problem is common for Toyota hybrids. is it true?
    I tried to call this live program to ask about my issue. But couldnt get through lines were busy.

    and now i cannot reset it with pin resetting, on the road... what should i do.
     
    #67 TharakaD, Aug 24, 2015
  8. Patrick Wong

    Patrick Wong DIY Enthusiast

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    OK, you drove the car 11.4 km (around 7 miles) after putting the car back together then the warning lights came back on and will not reset.

    Use Mini VCI to retrieve the DTC and post them.

    If "ABS modulator" is referring to the brake actuator, then yes, it is a problem that occurs from time to time. I would not say it is "common" but it can happen.
     
    #68 Patrick Wong, Aug 24, 2015
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  9. TharakaD

    TharakaD Member

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    .
     
    #69 TharakaD, Aug 24, 2015
    Last edited: Aug 24, 2015
  10. TharakaD

    TharakaD Member

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    C1203
    C1345
    C1451

    pls find attached :(
     

    Attached Files:

    #70 TharakaD, Aug 24, 2015
  11. Patrick Wong

    Patrick Wong DIY Enthusiast

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    C1451: need to bleed air out of the hydraulic brake lines
    C1345: linear solenoid valve offset learning
    C1203: replace brake booster w/skid control ECU

    I hope that you did not actually remove any hydraulic lines. You could try initializing the linear solenoid valve. However it looks like you will need to replace the brake booster unit.

    At least, it appears that there is good communications between the skid control ECU and the other ECUs since DTC U0129 did not appear. The three DTC listed above probably were present all along, but they could not be retrieved until the comm was restored.
     
    #71 Patrick Wong, Aug 24, 2015
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  12. TharakaD

    TharakaD Member

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    [1] C1451: need to bleed air out of the hydraulic brake lines
    I think this can be done at any local garage..

    [2] C1345: linear solenoid valve offset learning
    I remember there was an option in techstream to do this, am i correct?

    [3] C1203: replace brake booster w/skid control ECU
    Okay.. this is the hardest part. I saw in repair manual they are asking to do this..
    how can i find this assembly..

    I was initially thinking i have not properly fixed the connector. and thats the reason for so many codes.
    but from what you say its otherwise;

    So, Patrick what do you think. first 1 & 2 then, think about 3.
    anyway now you think i have fixed the connector properly..
     
    #72 TharakaD, Aug 25, 2015
  13. Patrick Wong

    Patrick Wong DIY Enthusiast

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    1. Actually you should review the brake bleeding process because it is unique. A local garage without access to the Toyota repair manual documentation will probably make the situation worse.
    2. Yes
    3. You already found it, the wiring harness connector that you had removed and cleaned connects to the skid control ECU.
     
    #73 Patrick Wong, Aug 25, 2015
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  14. TharakaD

    TharakaD Member

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    Thanks Patrick
    No1. will refer and see, otherwise I'll use Toyota, dealer or other expert.
    No.2. Will find it in techstream and do it today if possible
    No3. I was thinking where to find it to buy...

    It's going to be a long journey....
     
    #74 TharakaD, Aug 25, 2015
  15. TharakaD

    TharakaD Member

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    Now its 2 codes
    C1345
    C1368 (new) linear valve offset malfunction

    While learning is going on with bulbs blinking, the brake sound and blinking stopped in abt 15 seconds. It's supposed to go on I think for entire 120seconds.
     
    #75 TharakaD, Aug 25, 2015
  16. Patrick Wong

    Patrick Wong DIY Enthusiast

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    DTC C1368 - perform linear valve offset learning. If DTC returns then replace the brake booster w/skid control ECU.

    So, I think if you perform the linear solenoid valve initialization and calibration, and then if the same codes come back, that is more evidence to replace the brake booster w/skid control ECU.
     
    #76 Patrick Wong, Aug 25, 2015
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  17. TharakaD

    TharakaD Member

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    Okay while performing linear solenoid valve initialization and calibration the dash light blink pattern didn't change from test to normal mode.

    One time C1368 disappeared. But returned when I did the linear solenoid valve initialization and calibration.

    It's evident we can't proceed without replacing brake booster assembly.

    I think its a job of a professional...
    If I buy a used unit will Toyota install it???? Now its shopping time

    Any useful places welcome

    Or can I just hide the problem and sell the car. I think I faced the same thing...
     
    #77 TharakaD, Aug 26, 2015
  18. TharakaD

    TharakaD Member

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    #78 TharakaD, Aug 26, 2015
  19. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Regarding the specific used part, I do not know why the description says that the master cylinder is not included and whether that will be a problem for you or not. Regarding the price of a used part, since the new part MSRP is $2,400 then I would think a good used part price of $800 or less would be quite reasonable.

    You get to research the issue of a LHD vs RHD part. It looks like the system for a Prius with 17" wheels is different vs. a Prius with 15" wheels.

    You may need to remove the existing part to determine its part number. You can also look at toyodiy.com for part numbering info as well as a US Toyota dealer's website such as

    HYDRAULIC SYSTEM for 2010 Toyota Prius
     
    #79 Patrick Wong, Aug 27, 2015
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  20. TharakaD

    TharakaD Member

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    your comment about 17" and 15" I also noted

    however earlier owner told me he changed wheels from 15" to 17 size..
    this could be the reason for the problem? i don't know; but i guess not

    I just called Toyota Sri Lanka office, apparently they have the part in stock and he confirmed this part no [i doubt accuracy though, usually they are not supposed to share part no i guess]

    however they say using hacked techstream might not enable learning of the solenoid. so to bring it to do the calibration and see.. so I'm going there now.. there in my office neighborhood..
     
    #80 TharakaD, Aug 27, 2015
    Last edited: Aug 27, 2015
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