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Yellow Box Speedo Calibrator

Discussion in '1st Gen Tundras (2000-2006)' started by Darkness, Sep 22, 2018.

  1. Oct 13, 2021 at 2:12 PM
    #151
    2006Tundra

    2006Tundra Financially Irresponsible

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    I got the Yellowbox installed and it's dead on! It literally put a smile on my face! No need to drive with GPS now. Thanks, @seth419 for your pictures. They helped out tremendously.
     
  2. Oct 13, 2021 at 5:24 PM
    #152
    KarmaKannon

    KarmaKannon Master of None

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    I've been driving with my torque app so much lately it doesn't bother me anymore. However, if we start getting a tax per mile my speedometer may need to be adjusted.

    I actually find myself not even looking at my gauges unless it's to check fuel level or temperature haha.
     
  3. Oct 13, 2021 at 7:46 PM
    #153
    2006Tundra

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    Man, I hope that tax doesn't go through. What a joke.
     
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  4. Oct 14, 2021 at 2:58 AM
    #154
    KarmaKannon

    KarmaKannon Master of None

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    Doesn't that yellow box go both ways :notsure:
     
    Darkness[OP] likes this.
  5. Oct 14, 2021 at 5:27 AM
    #155
    Darkness

    Darkness [OP] Allergic to white

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    It sure does. There is also a not ethical and possibly not legal way to stop the odo in these trucks. I know a guy who did it to his.
     
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  6. Oct 14, 2021 at 5:11 PM
    #156
    KarmaKannon

    KarmaKannon Master of None

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    I know a guy that did that too. He may never get his 50 miles of driving back. Resale value out the window!
     
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  7. Nov 14, 2021 at 10:27 PM
    #157
    WhoAteMyWaffles

    WhoAteMyWaffles New Member

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    Finally had the chance to install and cal the Yellow Box. I haven't put enough miles on the fix to see how mileage is affected. However, the drivability is back to normal. I wish I had done this a couple of years ago. Thanks to 2006 Tundra and seth419 for their invaluable input.

    Side note: Be sure to stow the Box inside the kick panel as soon as you're calibrated. Once I had a good cal, I set it on the e-brake pedal, told myself "I'll remember it's there" and then monkey-stomped that e-brake pedal as soon as I parked at the house. Destroyed the fuse holder (could have been far worse). 2min fix but head-shakingly careless.
     
    Darkness[OP] and 2006Tundra like this.
  8. Nov 15, 2021 at 7:06 AM
    #158
    Darkness

    Darkness [OP] Allergic to white

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    I had to tuck mine in because the blinking lights were distracting at night. Good call.
     
  9. Jan 1, 2022 at 5:18 PM
    #159
    EvilMilkshake

    EvilMilkshake New Member

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    Just want to say I love this forum and thank you all for documenting your work. I just finished my Yellow Box install and it's working great!

    To share with anyone that matches my truck and the new YBv6 -- 2005 AC with ABS and no VSC: You will need to splice the brown/black wire (violet/white is for DC) from the ABS ECU. You can either do it at the ABS connector, or from behind the instrument panel like I did to save yourself some cable length as you can tap into the switched fuse panel easily. Also, the YBv6 instructions allude to using the 2-wire sensors as the ABS are sinewave according to Yellr, but that won't work. You have to set switch 1 to squarewave or 3 wire for it to work. The Toyota wiring diagram shows each sensor as being a 2-wire, so this confused me and caused me to check everything again, even though I knew the wiring was right, but I don't know enough about electronics to tell you why.


    Also, anyone know what the light gray wire that's added, but terminates before the connector is for on my Combination Meter large cable (you can see it in my picture)?
     
    Darkness[OP] and WhoAteMyWaffles like this.
  10. Jan 2, 2022 at 12:32 AM
    #160
    empty_lord

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    that wire is the antenna wire for the key fobs.
     
  11. Jan 2, 2022 at 12:37 AM
    #161
    empty_lord

    empty_lord They see me rollin'

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    i take it they still dont make a plug and play for the 05-06 trucks? technically im sure the 07 tundra box will plug and play with our trucks. the ABS style signal is identical to all modern toyotas. hell my radio does ASL. vehicle speed increases the radio volume because i wired it to do so..
     
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  12. Jan 2, 2022 at 10:59 AM
    #162
    EvilMilkshake

    EvilMilkshake New Member

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    Not that I'm aware of, but honestly, it's a pretty easy install on our trucks. Only one wire to cut.

    My radio does that as well, and I was using it, but the speedo and odometer being off really bothered me the moment I got the bigger tires. Glad this was easy and can be removed and transplanted to a newer vehicle if that ever happens.
     
  13. Mar 4, 2022 at 8:18 AM
    #163
    2006Tundra

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    @Casper421
     
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  14. Mar 4, 2022 at 8:58 PM
    #164
    Casper421

    Casper421 Toyota RidgeTrac driver!

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    Just ordered mine!
     
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  15. Mar 6, 2022 at 3:17 PM
    #165
    2006Tundra

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    Oh yeah!! You're going to love it.
     
  16. Apr 12, 2022 at 10:19 AM
    #166
    daveeasa

    daveeasa FBC Harness Solutions

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    OK, cool, late to the party but getting my ducks lined up on this one. Thanks Darkness.
     
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  17. Apr 12, 2022 at 12:06 PM
    #167
    empty_lord

    empty_lord They see me rollin'

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    The a340 should have a speedo gear you can replace like the tacos to avoid the calibrator
     
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  18. Apr 12, 2022 at 1:32 PM
    #168
    Darkness

    Darkness [OP] Allergic to white

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    You waited this long to tell us that? :annoyed:

    Do they come in a lot of ratios or is it just for the standard Toyota stuff (supporting 4.10, 3.91, etc)?
     
  19. Apr 12, 2022 at 4:56 PM
    #169
    empty_lord

    empty_lord They see me rollin'

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    It’s a guessing game. The speedo gears are documented on the Tacoma forums.
     
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  20. Jul 13, 2022 at 11:29 AM
    #170
    daveeasa

    daveeasa FBC Harness Solutions

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    Bump so I remember to install now that I’ve done initial calibration setup using rough math.

    I’ll hunt through the thread to see where you guys choose to run into the cab. I see a decent spot under the drivers seat where it looks like the grommet might have some space.

    Hopefully there is only one connector on the transmission which is the right shape.
     
  21. Jul 13, 2022 at 1:42 PM
    #171
    2006Tundra

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    I went through the driver side fire wall. I basically copied @seth419

    https://www.tundras.com/threads/yellow-box-speedo-calibrator.31996/page-5#post-2239759
     
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  22. Jul 13, 2022 at 1:50 PM
    #172
    daveeasa

    daveeasa FBC Harness Solutions

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  23. Jul 13, 2022 at 3:07 PM
    #173
    2006Tundra

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    I didn't have to do any of that. I just noticed you have a 2002, and the 04-06's are a different set up. Sounds like how @Darkness did his is more your speed.
     
  24. Jul 13, 2022 at 3:23 PM
    #174
    shifty`

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    I'm shocked nobody makes a true no-splice plug-n-play option for this.
     
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  25. Jul 13, 2022 at 3:25 PM
    #175
    2006Tundra

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    I hear ya. I've waited for years for someone to come up with something like that. Chevy's and Ford's all have an OBDII thing that you can plug in and change the speedo.
     
    Last edited: Jul 13, 2022
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  26. Jul 13, 2022 at 3:38 PM
    #176
    daveeasa

    daveeasa FBC Harness Solutions

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    The kit I have is fully plug and play. Just need to poke into the cab for the yellow part of it so that it stays clean and I can fiddle with it if I need to. Thinking I might route to the rear wall of the cab since I'm a RC and the stock jack is already there, leave enough cord to reach it if I want to fiddle with it while on a drive to fine tune. You have to power cycle to get the new config to take anyway so doesn't need to be that accessible. My kick panels always end up stuffed like sausages.

    I just need to get it through a grommet and locate the proper connector and I'm done.
     
  27. Jul 20, 2022 at 8:48 PM
    #177
    empty_lord

    empty_lord They see me rollin'

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    I’m trying to locate a male side connector to mimic the factory cluster so I can make a t harness.. I hate cutting factory wires. If not I’ll get a small connector that uses The same pins and just have a random extra connecotr that can be easily taken back to stock later.
     
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  28. Jul 20, 2022 at 10:27 PM
    #178
    daveeasa

    daveeasa FBC Harness Solutions

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    From a quick glance it’s a flat 3. I have two styles so I might have what’s needed. But my yellow box is in the Tundra, my spare connectors are at Home and I’m at my sister in laws.
     
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  29. Jul 20, 2022 at 10:52 PM
    #179
    empty_lord

    empty_lord They see me rollin'

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    Mines a 40 pin amp/TE 0.64iii connector
     
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  30. Jul 21, 2022 at 7:09 AM
    #180
    2006Tundra

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    Where's is @Darkness? Haven't heard from him in awhile.
     

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