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Airbag light after upper control arms install

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Roadrunner07, Feb 1, 2022.

  1. Feb 1, 2022 at 4:04 PM
    #1
    Roadrunner07

    Roadrunner07 [OP] New Member

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    I had a shop install SPC upper arms and replace the cam bolts before the alignment. The airbag light has been on ever since. I've been so busy that i've just been ignoring it. What could have caused it to turn on and how do i remedy it?

    Thanks!
     
  2. Feb 1, 2022 at 4:08 PM
    #2
    Dm93

    Dm93 Test Don't Guess

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    Possible that they pinched a wire or could be coincidence, you really need to get the code(s) to know what to look at.
     
    Geeves77 likes this.
  3. Feb 1, 2022 at 4:43 PM
    #3
    TnShooter

    TnShooter The TacomaWorld Stray

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    Is it just the airbag light?
    I can see where an ABS light would be caused by UCA replacement.
    But I can’t think of why just an SRS light?
     
  4. Feb 1, 2022 at 4:45 PM
    #4
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    The only thing I could think of is the inner fender wells have to be bent out of the way to fish the UCA bolt out. There are wiring harnesses that run along it that have to be unclipped before bending so you don’t pinch them. It’s possible one of those heads up front to a collision/airbag sensor.
     
    Superdave1.0 and TnShooter like this.
  5. Feb 1, 2022 at 4:47 PM
    #5
    TnShooter

    TnShooter The TacomaWorld Stray

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    Yeah, if/when I do mine.
    I’m taking a BFH to the pinch welds.
    I’m not about to fight those bolts out. Lol
     
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  6. Feb 1, 2022 at 4:48 PM
    #6
    EatSleepTacos

    EatSleepTacos Well-Known Member

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    TnShooter likes this.
  7. Feb 1, 2022 at 4:50 PM
    #7
    TnShooter

    TnShooter The TacomaWorld Stray

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    EatSleepTacos likes this.
  8. Feb 1, 2022 at 4:54 PM
    #8
    Superdave1.0

    Superdave1.0 Grandma Dave

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    On both sides the SRS front sensor wiring runs along the aprons. They need to be carefully unclipped and set back during this job. I'd bet they damaged the wiring.

    Remedy should be to replace the wiring harness if damaged. Any repairs made to those wires would be unsafe. I would fix asap as your air bags are likely disabled right now. If you get into an accident they won't work.
     
    pahaf likes this.
  9. Feb 1, 2022 at 5:25 PM
    #9
    Roadrunner07

    Roadrunner07 [OP] New Member

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    I used an obd II reader and it shows no codes. It is just the airbag light not the ABS light. Thank you everyone for your help!
     
  10. Feb 1, 2022 at 5:29 PM
    #10
    TnShooter

    TnShooter The TacomaWorld Stray

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    Not all OBD readers are created equal.
    Most don’t do SRS or ABS, although that feature is being implemented on most of the newer scanners now.
     
    Dm93 likes this.
  11. Feb 1, 2022 at 5:32 PM
    #11
    Dm93

    Dm93 Test Don't Guess

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    Most standard off the shelf OBD2 code readers are only going to read codes from the Engine Control Module, you need one that can read codes from the SRS (Airbag) Module.
     
    TnShooter likes this.
  12. Feb 2, 2022 at 7:05 AM
    #12
    pahaf

    pahaf Well-Known Member

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    Like the person above said. There are srs wires running along the apron. Exactly in the way of the long uca bolts way as it comes out.

    either the shop messed up the wire harnesses or they unplugged it and forgot to plug it back in.
     

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