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Anyway around reprogramming an ABS unit

Discussion in 'General Tacoma Talk' started by Steel Mill, Oct 13, 2023.

  1. Oct 14, 2023 at 4:01 PM
    #61
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    As soon as someone gets home to help me I will bleed them.
     
  2. Oct 14, 2023 at 4:11 PM
    #62
    Dm93

    Dm93 Test Don't Guess

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    Did you have the low brake pedal before you initially changed the module or was it just the unwanted ABS activation?
     
  3. Oct 14, 2023 at 4:16 PM
    #63
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    I had the bad pedal also even before I changed the module. The soft pedal started when the ABS and brake lights came on. Both lights came on at the same time.
     
  4. Oct 14, 2023 at 6:56 PM
    #64
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    I just bled each wheel. I started at right rear then left rear then went to front passenger side then driver side. I had no air in any of them. Took it for another test drive and everything still the same with no changes.
     
  5. Oct 14, 2023 at 7:44 PM
    #65
    Dm93

    Dm93 Test Don't Guess

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    I'm really at a loss here, really hard to believe 3 ABS units in a row would all have the same electrical and hydraulic problems.

    I still don't think the low voltage code has anything to do with the spongy brake pedal but without a way to plug the hydraulic ports one at a time there's not really a good way to isolate various parts of the hydraulic system.

    Would really like to load test those powers and grounds too.
     
  6. Oct 14, 2023 at 7:50 PM
    #66
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Can you think of anyway to load test it other then with a headlight and pigtail ?
     
  7. Oct 14, 2023 at 8:08 PM
    #67
    Dm93

    Dm93 Test Don't Guess

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    I mean theoretically anything you could use to put a 5-10 amp load on those circuits, a typical headlight bulb draws around 5 amps. I have several assorted bulbs I've scavenged from old headlight assemblies that I put banana jacks on for load testing circuits.
    [​IMG]
     
  8. Oct 14, 2023 at 8:30 PM
    #68
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Thank you. I have to work in the morning so I will figure something out. I’ll ask some electricians and Millwright’s on how to make something like that that would hook up to my headlights or something. I didn’t know what a banana jack was till I googled it. Lol.
     
  9. Oct 14, 2023 at 9:27 PM
    #69
    Dm93

    Dm93 Test Don't Guess

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    Yea pretty much all standard meter leads, test leads, and back probes have banana jack ends on them so that's what I put on all my "custom" test equipment.
     
  10. Oct 14, 2023 at 9:50 PM
    #70
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    I learn something new everyday it seems like and I’ll be 48 next month.
     
    Dm93[QUOTED] likes this.
  11. Oct 14, 2023 at 10:19 PM
    #71
    Dm93

    Dm93 Test Don't Guess

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    Yea there's always something new to be learned no matter how old you are. If you work on vehicles you have to keep learning or you get left behind very quickly with all the tech they are putting on them now.
     
  12. Oct 15, 2023 at 2:53 AM
    #72
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Yes in my opinion it is crazy what is under the hood now days.
     
  13. Oct 15, 2023 at 8:56 AM
    #73
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Could I use just like bare wire ends into the wiring harness ? I’m still at work right now. Just thinking out loud. Lol
     
  14. Oct 15, 2023 at 9:14 AM
    #74
    Dm93

    Dm93 Test Don't Guess

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    I wouldn't reccomend it, at best you would pop the fuse at worst you would let the smoke out of something.
     
  15. Oct 15, 2023 at 9:52 AM
    #75
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Lol ok. Well I don’t need to mess something else up. Already have brake trouble. I appreciate it.
     
  16. Oct 15, 2023 at 2:36 PM
    #76
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Closest thing I can find. Would this work ?

    IMG_6337.jpg
     
  17. Oct 15, 2023 at 2:48 PM
    #77
    Dm93

    Dm93 Test Don't Guess

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    You really dont need those, without test pins or backprobes they won't really do you any good.
     
  18. Oct 15, 2023 at 2:48 PM
    #78
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Ok. Thank you
     
  19. Oct 15, 2023 at 2:53 PM
    #79
    Dm93

    Dm93 Test Don't Guess

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    I have them on my stuff because I have backprobes and other test leads to use with them, wasn't saying you needed them.

    Earlier when you were talking about putting a wire in the terminals I was thinking you were talking about using a wire to short across the terminals.
     
  20. Oct 15, 2023 at 4:01 PM
    #80
    Steel Mill

    Steel Mill [OP] Well-Known Member

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    Honestly what I had in my mind was go find the hot wire off the headlight. Then splice into it then run it to the + side of the wiring harness. Then go to the ground and do the same way. Just didn’t know if that would work or if it would harm anything.
     

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