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Bricked ECU

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Muscle22, Apr 17, 2023.

Page 7 of 11
  1. Nov 30, 2023 at 6:26 AM
    #121
    BortisYeltzen

    #121
    BortisYeltzen Well-Known Member

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    Do the newest one 9/28/2023 and delete the older one.
     
    BortisYeltzen, Nov 30, 2023
    #121
    3GTCMLMTD likes this.
  2. Nov 30, 2023 at 6:44 AM
    #122
    wiljayhi

    #122
    wiljayhi “..ain’t nobody’s business if I do…”

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    Thanks, I wonder why Mat didn’t delete the older file(s) from the download? Would have gone a lot better for the first ones on 1.7.5 to attempt to flash a stock tune. I don’t plan on going stock anytime soon, just want to know why, all of a sudden, there are bricked ECUs when there should not be.
     
    wiljayhi, Nov 30, 2023
    #122
  3. Nov 30, 2023 at 6:20 PM
    #123
    Vlady

    #123
    Vlady Well-Known Member

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    When you get all your stuff sorted, could you please pull Calibration Verification number from the junk yard ecm? Thanks
    Edit: Techstream-use Generic OBD button. Select Powertrain01, then Utility, bottom right select Vehicle Info
     
    Last edited: Nov 30, 2023
    Vlady, Nov 30, 2023
    #123
  4. Nov 30, 2023 at 7:28 PM
    #124
    Technique

    #124
    Technique Well-Known Member

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    It's 89663-04b03. Thats the calibration # right?
    (just had that info from last night, haven't checked via your instructions)
     
    Technique, Nov 30, 2023
    #124
  5. Nov 30, 2023 at 7:44 PM
    #125
    Vlady

    #125
    Vlady Well-Known Member

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    This is OG one. Now you need to update to 04b04, using CUW file via techstream.
    But get cvn using my steps for both. People will buy you a beer
     
    Vlady, Nov 30, 2023
    #125
  6. Nov 30, 2023 at 7:49 PM
    #126
    Technique

    #126
    Technique Well-Known Member

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    Oh, right. Yeah, I'll check that this weekend for 04b03. Honestly, I probably wont update to 04b04 until I recover my old one. I don't want to go through the process of having a bricked ECU again...and no method of transportation hah. Even though the odds of anything happening updating to 04b04 are very slim....just a bit weary of doing that right now.
     
    Technique, Nov 30, 2023
    #126
  7. Nov 30, 2023 at 7:58 PM
    #127
    SomeTacoDude

    #127
    SomeTacoDude Well-Known Member

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    Or why after being told the manufacture couldn't tell if you had a tune we find out that the state can. The gov at a state level. I work there. If they can do it a bunch of baboons on meth could.
     
    SomeTacoDude, Nov 30, 2023
    #127
    VB25 likes this.
  8. Dec 1, 2023 at 8:45 AM
    #128
    JustDSM

    #128
    JustDSM Oderint Dum Metuant

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    04B04 is 3EDA9609

    *EDIT* Don't drink so have the beer on me ;)
     
    Last edited: Dec 1, 2023
    JustDSM, Dec 1, 2023
    #128
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  9. Dec 1, 2023 at 8:47 AM
    #129
    JustDSM

    #129
    JustDSM Oderint Dum Metuant

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    That would imply the Tech knows what the CVN should be.

    The state(s) know because CARB gathered the information from the Mfg's to implement this new change.
     
    Last edited: Dec 1, 2023
    JustDSM, Dec 1, 2023
    #129
    3GTCMLMTD likes this.
  10. Dec 1, 2023 at 9:01 AM
    #130
    Yoda_Mike

    #130
    Yoda_Mike YotaWerx Authorized Tuner

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    Techstream can actually read the CVN. It's visible in Generic OBDII > Powertrain01 > Utility > Vehicle Info.

    As you noted though, I can confirm in my 10+ years as a Toyota tech I never once looked at that value, nor did I have a list to which it could be compared to determine if it had changed.
     
    Yoda_Mike, Dec 1, 2023
    #130
    SH7mi, Technique, JustDSM[QUOTED] and 1 other person like this.
  11. Dec 1, 2023 at 9:03 AM
    #131
    JustDSM

    #131
    JustDSM Oderint Dum Metuant

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    Yeah, I had to edit. I don't ever use TS for that and forgot that was there.
     
    JustDSM, Dec 1, 2023
    #131
    SH7mi and Yoda_Mike[QUOTED] like this.
  12. Dec 1, 2023 at 9:11 AM
    #132
    Vlady

    #132
    Vlady Well-Known Member

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    Thanks. Chocolate???
     
    Vlady, Dec 1, 2023
    #132
    JustDSM[QUOTED] likes this.
  13. Dec 3, 2023 at 12:20 PM
    #133
    Technique

    #133
    Technique Well-Known Member

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    Well, good news is....I believe I recovered my original ECU that was bricked.

    I got the bench harness created and the ECU recovery went through. "ECU Programming Complete".

    Woo. I may go swap that one back in to my truck today, so I'm at least running 04B04.


    And I used the file @JustDSM linked a few pages back. The files in my vftuner show they are from 2020 lol.
     
    Last edited: Dec 3, 2023
    Technique, Dec 3, 2023
    #133
    3GTCMLMTD and JustDSM like this.
  14. Dec 3, 2023 at 12:38 PM
    #134
    JustDSM

    #134
    JustDSM Oderint Dum Metuant

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    Good work and glad to hear you got the ECU recovered.

    The old 2020 04B04 files will have the encryption and thus wont have the OEM CVN. The one I sent you will.
     
    JustDSM, Dec 3, 2023
    #134
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  15. Dec 3, 2023 at 12:58 PM
    #135
    3GTCMLMTD

    #135
    3GTCMLMTD Well-Known Member

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    So what exactly caused this? Flashing an old stock file? Someone else was flashing a tune, so that didn’t work, either. Is it the VFTuner software? Will anyone attempting to flash a tune go through this, as well now? Is there a fix?
     
    3GTCMLMTD, Dec 3, 2023
    #135
  16. Dec 3, 2023 at 1:30 PM
    #136
    Metal Taco

    #136
    Metal Taco Yotawerx Authorized Tuner, Virginia.

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    Good job, we all knew you could do it!!
     
    Metal Taco, Dec 3, 2023
    #136
  17. Dec 3, 2023 at 1:51 PM
    #137
    JustDSM

    #137
    JustDSM Oderint Dum Metuant

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    The 8/27/2023 dated 04B04/04A61 files are "problematic" is about as much as I should say.
     
    JustDSM, Dec 3, 2023
    #137
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  18. Dec 3, 2023 at 1:59 PM
    #138
    Technique

    #138
    Technique Well-Known Member

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    Just got it back it the truck, did the immobilization reset thing and she’s running! I’m a happy camper. Sucks I had to spend $175 on an ECU but at least I have a spare one now.
     
    Technique, Dec 3, 2023
    #138
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  19. Dec 3, 2023 at 2:24 PM
    #139
    JAL

    #139
    JAL Well-Known Member

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    Let’s see the harness you made, enquiring minds want to know the layout (me :thumbsup:).
    And great news on the recovery!
     
    JAL, Dec 3, 2023
    #139
    Technique[QUOTED] and Metal Taco like this.
  20. Dec 3, 2023 at 2:27 PM
    #140
    Metal Taco

    #140
    Metal Taco Yotawerx Authorized Tuner, Virginia.

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    Having a spare isn't a bad thing and you learned a lot about your truck in the process. Still sucks that happened to ya. Glad you got everything figured out and she's back up and running again!
     
    Metal Taco, Dec 3, 2023
    #140
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