G-8VXWWTRHPN 01221 Airbag Crash Sensor Driver Side - Implausible Signal - VWWatercooled Australia

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01221 Airbag Crash Sensor Driver Side - Implausible Signal

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  • 01221 Airbag Crash Sensor Driver Side - Implausible Signal

    Hi,

    Was driving along and suddenly the Airbag Fault warning came up on the dash, after a scan 01221 - Implausible signal was shown, clearing it only causes it to come back. Online suggested the drivers door harness could have failed but there are no signs of any fraying/breaks in the wires. Is it possible the sensor is bad or the wires have broken deeper inside the boot where I can't see them?

    Cheers
    2016 GTI 40 Years | 2012 Up! | 2006 Jetta - Sold

  • #2
    Sounds like it could be a bad sensor; it'll either be the sensor or the wiring harness, but a replacement sensor costs about $100 from the dealer, which is a fair bit less than a new wiring harness. When mine failed I was sure it was the harness, but replacing the sensor fixed it straight away; it should be the easiest place to start. It's a bit of a pain to replace, but easy enough to DIY - I think there's a guide on this forum somewhere.

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    • #3
      Thanks, have to take the passenger side door skin off for another job anyway, so might try swapping the sensor. I'm assuming they are the same both sides?
      2016 GTI 40 Years | 2012 Up! | 2006 Jetta - Sold

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      • #4
        I think they are - not 100% sure, so don't quote me on it! They're riveted to the door, which is a pain; I wrecked the old sensor trying to drill it out, but if you can manage to get both sensors out and intact, this sounds like a plan.

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        • #5
          Took the door skin off, and found they aren't riveted on just held by two torx screws. Swapped them over and the fault moved to the passenger side so off to VW tomorrow for a new sensor!
          2016 GTI 40 Years | 2012 Up! | 2006 Jetta - Sold

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          • #6
            Originally posted by MEL744 View Post
            Took the door skin off, and found they aren't riveted on just held by two torx screws. Swapped them over and the fault moved to the passenger side so off to VW tomorrow for a new sensor!
            How much did the dealer charge you for new sensor ???

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            • #7
              Around $100, and it solved the issue
              2016 GTI 40 Years | 2012 Up! | 2006 Jetta - Sold

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