1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2018+ TPMS Codes finally cracked.

Discussion in '2.5 Gen Tundras (2014-2021)' started by Jeff_5_7, Mar 26, 2022.

  1. Mar 26, 2022 at 5:39 PM
    #1
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    After a month or more I have finally been able to reverse engineer the TPMS signals to the cluster on the 2018+ trucks. I think this will work for all 2018+ Toyotas but has only been tested on my 2018 Tundra cluster.

    Cluster is powered on the bench and all signals are sent via the CAN (communication area network) using my PC. This is the result of hours and hours or reverse engineering.

    With the cluster on and we get this screen with no option to display TPMS values and the orange warning light on.
    0630DA7A-D1D7-46BB-9D57-16214C7064F6.jpg

    Now the orange warning light is off but still no display to scroll down too.
    A57559D3-D5D4-4FE5-8976-975843B3CFEF.jpg

    Ahh there it is, notice the blue slide bar now present on the right of the screen. It was not there in the previous 2 photos.
    6D675CF7-9A0F-482A-A464-1929D2E4E24A.jpg

    Now we have the display but no data shown. Hmmm
    F14A2995-AFDC-4457-8729-787749090E8D.jpg

    Oh there it is, I set all tires to 40 PSI.
    A62C7375-3525-4206-BF95-ADFA553B75E8.jpg

    This is where it gets cool. I realized depending on the code you can activate a 5th value for spare tire. I don’t think I have seen any trucks with this but know some of the systems hold the ID of 5 sensors to include the spare.
    FCCC6357-F496-471B-98F0-456B65D93E1C.jpg

    Signals can be sent to highlight any value, I assume to show it as the issue sensor. I was able to send values all the way from 1 psi to 125 psi. I could also change Units to KpA or Bar just didn’t photo those as PSI is most common.
    969838D7-5DED-4B7B-8312-8D05132E6040.jpg
    EC9CC861-45D5-4BC9-91EE-26D1E88E97AF.jpg

    The best news about this is I now know of a way to keep the orange indicator light off forever no matter what but you could still use your display to see readouts if you have sensors in your wheel. Or you could turn the orange warning light and display screen off all together.

    A think a small computer chip to plug inline with the TPMS ecu would be the easiest solution. Quick install and easy to undo, just unplug the connecters and pull the “chip” out of line.


    Also I am like 90% of the way done with being able to run a 2018+ cluster on a 2014-2017 truck. I have almost all the signals mapped from both clusters and will build a translator to make sure the data is sent to the correct locations where the newer 2018+ clusters are looking for it
     
    Last edited: Mar 26, 2022
    bulldog93, SC4333, hagrid and 31 others like this.
  2. Mar 26, 2022 at 5:40 PM
    #2
    Saltyhero13

    Saltyhero13 Throbbing Member

    Joined:
    Aug 12, 2020
    Member:
    #50704
    Messages:
    4,713
    Fuel delete mod Cup holder upgrade
    Nice work
     
  3. Mar 26, 2022 at 5:58 PM
    #3
    TBS

    TBS New Member

    Joined:
    Oct 29, 2017
    Member:
    #10593
    Messages:
    608
    Vehicle:
    2021 SR5 CrewMax 4x4 Barcelona Red
    E50 extinguisher, Valhalla Plates, ESP Storage, Chrome Delete, Pwr Tailgate Lock,
    Freaking Awesome! 5 sensors displayed! Even my 2021 only shows 4.
    Really nice work.
     
    ryanwgregg likes this.
  4. Mar 26, 2022 at 6:03 PM
    #4
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    I believe all cluster displays have the ability to show 5 sensors. That doesn’t really matter however if the TPMS ecu only stores 4 sensor IDs. Tech stream is the easiest way to check that.

    If yours has 5 IDs I would assume it’s sending 5 signals, just need to get the display to show all 5
     
    bulldog93 and (deleted member) like this.
  5. Mar 27, 2022 at 5:50 AM
    #5
    TBS

    TBS New Member

    Joined:
    Oct 29, 2017
    Member:
    #10593
    Messages:
    608
    Vehicle:
    2021 SR5 CrewMax 4x4 Barcelona Red
    E50 extinguisher, Valhalla Plates, ESP Storage, Chrome Delete, Pwr Tailgate Lock,
    I know my truck stores 5. (I have a sensor in my spare and my AUTEL TS508 shows 5 stored via the OBD)
    Just don't know how to get it to Show 5 on the display.

    ~TBS
     
    Last edited: Mar 27, 2022
  6. Mar 27, 2022 at 6:39 AM
    #6
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    The difference is one byte in the signal from the TPMS Ecu. Would be cool if an option in Techstream told the TPMS ecu to switch to 5 instead of 4.

    The only other option is an inline can bus signal generator that would send the data from the TPMS Ecu along with the corrected byte to tell the display to show 5
     
    ryanwgregg likes this.
  7. Mar 28, 2022 at 9:49 AM
    #7
    tomeks81

    tomeks81 New Member

    Joined:
    Dec 22, 2017
    Member:
    #11679
    Messages:
    13
    Gender:
    Male
    CT
    Vehicle:
    19 Tundra
    Amazing work, OP!
     
  8. Mar 28, 2022 at 10:11 AM
    #8
    JRS

    JRS New Member

    Joined:
    Jan 30, 2022
    Member:
    #73919
    Messages:
    320
    First Name:
    John
    Vehicle:
    2012 DCLB
    Thanks for the PM letting me know... Of course I'm going to ask baud rate, arbitration IDs, and hardware.
     
  9. Mar 29, 2022 at 3:25 AM
    #9
    Bammer

    Bammer I'm disinclined to acquiesce your request.

    Joined:
    May 23, 2019
    Member:
    #30901
    Messages:
    1,412
    Gender:
    Male
    First Name:
    John
    Monroe, CT
    Vehicle:
    2019 Tundra SR5 TRD Crew Max 4x4
    Nice work OP ! :hattip:
     
  10. Mar 29, 2022 at 7:03 AM
    #10
    reywcms

    reywcms New Member

    Joined:
    Dec 20, 2021
    Member:
    #72040
    Messages:
    5,676
    Gender:
    Male
    First Name:
    Rey
    Beaverton,Oregon
    Vehicle:
    2017 Tundra Platnium
    Too many mods to come
    This is badass! I'm game for a cluster update unless this eventually works for the 17
     
    ryanwgregg likes this.
  11. Mar 29, 2022 at 8:36 AM
    #11
    purplenova

    purplenova Not a new member

    Joined:
    Nov 9, 2018
    Member:
    #21513
    Messages:
    897
    Gender:
    Male
    First Name:
    Tom
    Ohio
    Vehicle:
    2016 Tundra Crewmax SR5
    Pillar Tape, Bullet Liner, 20% Tint, Tyger Star Armor Kenwood amp & AudioControl LC7i Tech12volts JL Tweeters
  12. Mar 30, 2022 at 2:19 AM
    #12
    dorton

    dorton #RockCreekOverland

    Joined:
    Aug 14, 2020
    Member:
    #50772
    Messages:
    150
    Gender:
    Male
    North Carolina
    Vehicle:
    2020 Black Tundra SR5
    CBI Off Road Front Bumper, Rock Sliders, Skids, and Bed Rack. Prinsu Designs Roof Rack, CVT Hybrid Rainier Tent, Old Man Emu lift, Fuel Vectors, Yokhama 305/70r18s
    Impressive work OP.
     
    ryanwgregg likes this.
  13. Mar 30, 2022 at 6:13 AM
    #13
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    So far my research has shown all the TPMS data on 2007-2017 is on the K line and the only signal sent to the instrument cluster is to turn on/off the orange warning light.

    I am going to swap a 2018+ TPMS ecu into my 2007. Hopefully it will send PSI data to the cluster then. However the only way I know to display it currently is by using the newer 2018+ cluster in an older truck
     
    ryanwgregg likes this.
  14. Mar 30, 2022 at 6:22 AM
    #14
    reywcms

    reywcms New Member

    Joined:
    Dec 20, 2021
    Member:
    #72040
    Messages:
    5,676
    Gender:
    Male
    First Name:
    Rey
    Beaverton,Oregon
    Vehicle:
    2017 Tundra Platnium
    Too many mods to come

    Copy that. Would it be difficult to turn the light off on the current 17 cluster? I'd be ok with alone.
     
    ryanwgregg likes this.
  15. Mar 30, 2022 at 6:26 AM
    #15
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    It’s actually not that hard. I have considered making a say 6 in plug and play harness that would turn off the light. Could be installed or undone in minutes.

    Would just plug inline between the TPMS ecu and factory harness.
     
    ryanwgregg and 1eyedclyde like this.
  16. Mar 30, 2022 at 9:14 AM
    #16
    reywcms

    reywcms New Member

    Joined:
    Dec 20, 2021
    Member:
    #72040
    Messages:
    5,676
    Gender:
    Male
    First Name:
    Rey
    Beaverton,Oregon
    Vehicle:
    2017 Tundra Platnium
    Too many mods to come

    I'd be happy to pay and test that for you.
     
    pandapro likes this.
  17. Mar 30, 2022 at 7:58 PM
    #17
    MALIBU1794DC

    MALIBU1794DC New Member

    Joined:
    Feb 25, 2022
    Member:
    #75115
    Messages:
    98
    Gender:
    Male
    Vehicle:
    2019 Double cab 1794
    Wow.

    How much would you charge to do one for someone else?
     
  18. Mar 31, 2022 at 12:53 PM
    #18
    Downytide

    Downytide New Member

    Joined:
    Sep 3, 2020
    Member:
    #51715
    Messages:
    1,662
    Gender:
    Male
    GTA
    Vehicle:
    Lunar Rock with trail boxes
    This is really cool, I'm down for it, it's annoying when I air down on the trails and constantly get the warning message.

    Man, do you work for automotive electronic industry?
     
    Jeff_5_7[OP] likes this.
  19. Mar 31, 2022 at 1:18 PM
    #19
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    I do not currently but have considered it one day. All this is a hobby for me in my free time. Self taught, working on learning more about reading/editing EEPROM and Flash memory. If I can figure that out it could open up a huge door of possibilities. I was fortunate to be taught the basics of electricity as well as how to write/program computer code serval years ago.

    I do have a masters degree in engineering from a major school here in Texas but it’s in Transportation. Highway Design, Traffic Signals ect. I work as a professional engineer in transportation forensics, studying and reconstructing auto accidents.
     
  20. Apr 11, 2022 at 10:42 PM
    #20
    TTund16

    TTund16 New Member

    Joined:
    Jan 3, 2017
    Member:
    #5798
    Messages:
    1,157
    Gender:
    Male
    @Jeff_5_7

    Nice job reverse engineering. Can you figure out how to program ultragauge to read the tire pressures?
    I know it can be done if you have the code. Friend and I tried a few codes on his ultragauge but it didn't work.
     
  21. Apr 12, 2022 at 7:01 AM
    #21
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    Depends on what year, the 2018+ would be easy to code in BUT you have all that info on the dash already so kind of pointless. The 2017 and older uses a different commination system. I don't know how to code it to work but there is a way. I have considered looking into it just need to find the time.
    The Mastreo interface for the radio and steering wheel controls can do it on the older trucks. It displays the values on the headunit screen.
     
  22. Apr 12, 2022 at 7:07 AM
    #22
    e30cabrio

    e30cabrio I'm e30cabrio, I'm a modaholic

    Joined:
    Oct 20, 2017
    Member:
    #10410
    Messages:
    5,070
    Gender:
    Male
    West Valley, Phoenix, Az.
    Vehicle:
    Boosted 2013 Sequoia TRD FAUX
    Maggy, Dobinsons, TRD PRO conversion, 18+ lights & cluster too much more to list
    You are my hero! You know I'm in to help/pay for this!
     
  23. Apr 12, 2022 at 3:11 PM
    #23
    rdiddy5

    rdiddy5 New Member

    Joined:
    Jan 5, 2022
    Member:
    #72677
    Messages:
    316
    First Name:
    Ryan
    Arizona
    Vehicle:
    2018 Crewmax 1794 4x4
    dope af that you're able to figure all this out.

    when you get the ability to run a 5th and 6th (single axle trailer) TPMS on a 2018+ I'm in!
     
  24. Apr 12, 2022 at 6:13 PM
    #24
    TTund16

    TTund16 New Member

    Joined:
    Jan 3, 2017
    Member:
    #5798
    Messages:
    1,157
    Gender:
    Male
    thanks for the info. Will have to look into Mastreo. Like to have something to read my tire pressures.

    I have a 2016 with no PSI display. I programmed my scangauge and a friend's ultragauge to read trans temp and it was not that difficult but I had the code from someone here.

    my friends ultragauge should be able to do it because someone else at work programmed his ultragauge to read them but we lost contact with him when he switched jobs.
     
  25. Sep 9, 2023 at 9:39 AM
    #25
    azTony

    azTony member since sept, 2017 and over 1,600 messages

    Joined:
    Sep 16, 2017
    Member:
    #9693
    Messages:
    2,959
    Gender:
    Male
    First Name:
    Tony
    Sun Lakes, AZ
    Vehicle:
    *** OV Tune Order #4481 *** ECU 0CN21 ***
    2018 Tundra Platinum with Icon Stage 9 w/3.0 and billet UCA, Harrop Elockers, 5.29 on 37’s
    I dug around with Techstream and I do not see a way to be able to add the 5th ID for the TPMS of the spare. The 5th position is there and it even has the “set” in there. I believe this allows for multiple (2 I would see being the max) “sets” of wheels for summer and winter use.

    At any rate I do not ever see a way to update the count from 4 to 5 and it is weird it is seen everywhere but you cannot add the ID anywhere. Anyone know the trick to get the ID number added for the 5th wheel? I pushed the button under the dash and all 5 of them changed from the location they are assigned to and they all 5 said “judging”.

    Any help would be appreciated.
    EDIT: I was told the Tundra is a 4 tire system not a 5 like some others.

    IMG_6162.jpgIMG_6161.jpg
     
    Last edited: Sep 10, 2023
    bulldog93 likes this.
  26. Sep 9, 2023 at 9:45 AM
    #26
    Shanet421

    Shanet421 (Semi) New Member

    Joined:
    Oct 17, 2020
    Member:
    #53708
    Messages:
    1,294
    Gender:
    Male
    San Diego,CA
    Vehicle:
    2013 CM 5.7L 4x4 SR5 Super White

    Have you made these for other members? I’m in need of turning off the orange light on my 2013.

    TIA
     
  27. Sep 9, 2023 at 9:56 AM
    #27
    ColoradoTJ

    ColoradoTJ Certified tow LEO Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    36,901
    Gender:
    Male
    Colorado
    Vehicle:
    LML 3500HD
    Calibrated Power 5 Tune pack, Allison 1000 tune, PPE deep trans pan, Cold/Hot CAC pipes, Banks CAI, PCV reroute, resonator delete, S&B 62 gal fuel tank, B&W GN hitch


    Your profession saved me around a half million dollars. Amazing how accident investigator and reconstruction professionals can find the smallest detail without even being onsite after the accident.
     
    bulldog93 and e30cabrio like this.
  28. Sep 10, 2023 at 8:01 AM
    #28
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    I have not made one yet but I am pretty certain it can be done fairly easily.
     
    e30cabrio likes this.
  29. Sep 10, 2023 at 8:03 AM
    #29
    Jeff_5_7

    Jeff_5_7 [OP] New Member

    Joined:
    Feb 20, 2021
    Member:
    #59378
    Messages:
    1,390
    Gender:
    Male
    First Name:
    Jeff
    Houston Tx Area
    Vehicle:
    2007 RCSB 2014+ TRD Pro Conversion 5.7 4x4
    Full 2014+ Conversion Regular Cab Short Bed 4X4 2019 TRD Pro Grill, 2014+ Front End Swap 2014+ Interior/Dash Swap with TRD Pro Leather Seats, 2014+ Bed Swap with TRD Pro Stamping SOS 2/4 Drop Kit
    It really is a fascinating profession at times. I have worked on over 500 accidents in the last few years. Lots of travel to look at wrecked cars or accident scenes. A lot of evidence collection using drones, 3d scanners and other cool stuff.

    Majority if everything I do is in Texas and generally involves a commercial vehicle, lots of 18 wheelers.
     
  30. Sep 10, 2023 at 8:03 AM
    #30
    Shanet421

    Shanet421 (Semi) New Member

    Joined:
    Oct 17, 2020
    Member:
    #53708
    Messages:
    1,294
    Gender:
    Male
    San Diego,CA
    Vehicle:
    2013 CM 5.7L 4x4 SR5 Super White

    I’m game if you have the time…of course I would compensate :spending:
     

Products Discussed in

To Top