E90 fault code

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  1. E90 fault code 
    #1
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    Smooth hound's Car Details
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    Please help I'm getting fault code 93b4 second stage drivers airbag on my 2005 e90??? The lights only came on after I got it tracked... It was not off that much ....any help would be much appreicated as my car is sold. Thanks
     
     

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    #2
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    TheEnd's Car Details
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    Can it be cleared?

    I'd have a word with the tracking garage, as I'd put money on it they've been lazy and just adjusted one wheel then moved the steering wheel to suit, and in doing so, either left the airbag unplugged or damaged the plug.
     
     

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    #3
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    Code can be cleared but keeps coming back when I switch off the car... No wires disconnected checked everything. Ith the code 93b4. Nobody seems to know exactly what it means
     
     

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    #4
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    The driver's airbag is the one in the middle of the steering wheel.

    It is detecting a problem with it, and I'd be pretty sure it has been knocked or damaged when the steering wheel has been removed to hide the fact they haven't adjusted both wheels to centre the steering rack.

    It could be the loom inside the steering wheel, or the "slip ring cartridge"
     
     

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    #5
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    i was watching them doing the tracking no steering wheel was removed,,,,replaced the slip ring still no joy took the seats out today and checked and cleaned all the sensor wires,,,,also checked and replaced the battery and the bst cable....dont want to buy a new airbag yet till i find that it is the problem for sure....also checked the connections on airbag modul and cleaned them....have you or any body any other suggestions...any help would be much appreicated thank you
     
     

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    Well, I think your options would be try a used airbag and see if it can be cleared, otherwise it is going though the wiring and then the airbag module.
     
     

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    #7
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    Thanks ill try something
     
     

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    #8
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    Sorry I took so long but I've tried everything... New oem clock spring modul cleared and reset but the code remains and can't be cleared also says short circuit to ground any ideas what it could be I don't want to buy a second hand airbag and still have the lights on. ...
     
     

  11. E90 fault code 
    #9
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    I had the same problem with mine but on passenger side turned out it was the ecu, I disconnected the air bag & read the codes while it was disconnected & it gave me a new code for stage 1 & still the code for stage 2 short to ground, unplugged the ecu & checked wires from ecu to air bag for short circuits but all ok, had ecu repaired & all good now
     
     

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