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Thread: SRS Warning light help please

  1. 6th April 2013, 09:07 PM #11
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    bell1975
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    Quote Originally Posted by Bilbo View Post
    There is no yellow wire, just a yellow sheath round the 2 wires.
    What I do not understand, is why there is an SRS error if the plug and socket are disconnected?
    As far as I can see it has nothing to do with air bags and appears to be some sort of check on seat belts.
    Quote Originally Posted by OffTrack View Post
    The seat belt pretensioner contains a small explosive charge that fires to pull the seat belt tight when the airbags trigger. It's an essential part of the SRS system and is continually monitored for correct functioning.

    The seat belt light is usually set to a short time delay and switches off after about 8 seconds.

    Cheers
    Paul
    Yellow = SRS system as explained above. If all of the components don't work together then there is a real risk that the driver/passenger could be injured/killed by the airbag. So that pretensioner needs to work to keep you safe.

    My SRS light is on at the moment from unclipping the plug we're referring to here.

    The Nanocom gave me a "pretensioner fault" for this but I can't recall what it is right now. I'll edit this for reference when I get back into the vehicle in a day or two.

    Incidentally I use Posilock connectors a bit on my bike and when the Pretensioner wires were cut on the drivers' side I used one of these to join them. It would be very simple to unscrew each end of the connector if the seat ever had to come out again.
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  2. 6th April 2013, 09:14 PM #12
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    OffTrack
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    Having a better look at the wiring diagram it appears only one buckle switch is hooked up to the BCU.

    There are 3 or 4 ways to configure the seatbelt warning lamp in the BCU. Two are based on the state of the buckle switch.

    Cheers
    Paul
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  3. 6th April 2013, 09:19 PM #13
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    bell1975
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    Quote Originally Posted by OffTrack View Post
    The buckle switches (which don't seem to work on mine) are part of the BCU wiring and can be found in that section of the wiring diagram.

    Something else to add to my "must look at" list.

    cheers
    Paul
    The buckle warnings can be disabled via the BCU settings with a Nanocom. Perhaps yours have been turned off. Mine certainly have - too annoying to be reminded of something which is a habit for me anyway.

    That "must look at" list just never ends eh? Mine gets longer each time I read a few threads on here!

    Edit: Took too long to put that post up...Paul has summed it up there.
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  4. 6th April 2013, 09:27 PM #14
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    Quote Originally Posted by bell1975 View Post
    The buckle warnings can be disabled via the BCU settings with a Nanocom. Perhaps yours have been turned off. Mine certainly have - too annoying to be reminded of something which is a habit for me anyway.

    That "must look at" list just never ends eh? Mine gets longer each time I read a few threads on here!
    I'd had a play with the warnings a while ago and found the warning kept going even with both front buckles inserted so something is NQR. I've got dash light set to the 6 second setting and the chimes turned off. The bings are too annoying

    I'm pretty sure it's something that is pretty close to the bottom of the list, but I'll have a look next I need to do some work under the seats. Cleaning oil out of the auto box harness perhaps?
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  5. 6th April 2013, 10:22 PM #15
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    Quote Originally Posted by OffTrack View Post
    I'm pretty sure it's something that is pretty close to the bottom of the list, but I'll have a look next I need to do some work under the seats. Cleaning oil out of the auto box harness perhaps?
    Ooooh, we don't like those "wiring harness" and "oil" words being used in the same sentence...wash your mouth out

    Well done by the way on the head rebuild. Not something I want to find myself doing any Sunday in the near future.
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  6. 7th April 2013, 05:14 AM #16
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    Quote Originally Posted by bell1975 View Post
    Ooooh, we don't like those "wiring harness" and "oil" words being used in the same sentence...wash your mouth out

    Well done by the way on the head rebuild. Not something I want to find myself doing any Sunday in the near future.
    Thanks. Once you've done it once it doesn't quite seem as daunting

    As for the auto harness, it's a bit disturbing when you find a nice oily sheen on the wiring in behind the window switch panel.

    cheers
    Paul
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