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Thread: BST fault reset

  1. #1

    BST fault reset

    2008 E61 LCI
    After a recent tip the BST cable on the battery had to be replaced. Restaint System Fault on iDrive. Went to reset the fault with INPA; fault on SIM/SGM 93B2. Still wont reset, checked the resistance on the new BST connector on the cable, 2 ohms. Stumped.
    Any ideas guys?

  2. #2
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    I’m nearly sure you need to replace the ACSM (airbag) module after it deploys an airbag. Or the other option is you send it away to get the crash data erased from the module.

    The idea behind that is that a unit that has come from a crashed car shouldn’t be re-used in case it got damaged in the crash. You might find the answer with a bit of googling, wiping it might be possible.

    https://cartechnology.co.uk/showthread.php?tid=28296

    https://www.revtronic.com/product/bm...sh-data-reset/
    Last edited by rebel.ranter; 27-03-18 at 23:12.

  3. #3
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    Quote Originally Posted by rebel.ranter View Post
    I’m nearly sure you need to replace the ACSM (airbag) module after it deploys an airbag. Or the other option is you send it away to get the crash data erased from the module.

    The idea behind that is that a unit that has come from a crashed car shouldn’t be re-used in case it got damaged in the crash. You might find the answer with a bit of googling, wiping it might be possible.

    https://cartechnology.co.uk/showthread.php?tid=28296

    https://www.revtronic.com/product/bm...sh-data-reset/
    Exactly what Rebel said, replace or repair the air bag control unit.


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  4. #4
    Where abouts is the module located?


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  5. #5
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    Quote Originally Posted by Colm_D View Post
    Where abouts is the module located?


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    Under the centre armrest behind the handbrake lever.


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  6. #6
    So, I got the reset airbag module back today and fitted it, still getting 93B2 error on SIM/SGM when I read with INPA. No other errors present and the Restraints systems/ airbag lights still on the idrive/dash..
    Any thoughts?

  7. #7
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    Quote Originally Posted by Colm_D View Post
    So, I got the reset airbag module back today and fitted it, still getting 93B2 error on SIM/SGM when I read with INPA. No other errors present and the Restraints systems/ airbag lights still on the idrive/dash..
    Any thoughts?
    Can u reset the module with tool32 or the likes?

  8. #8
    Quote Originally Posted by alan b View Post
    Can u reset the module with tool32 or the likes?
    Inpa used.


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  9. #9
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    Hey, just 9ne thing I thought of, did you default code the module with NCS Expert?

  10. #10
    Quote Originally Posted by rebel.ranter View Post
    Hey, just 9ne thing I thought of, did you default code the module with NCS Expert?
    Didn’t, no. Am I too late for that though? If not, any step-by-step how-to guide available?


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