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Thread: Airbag headache!!!

  1. #1
    Regular Member simon7257's Avatar
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    Default Airbag headache!!!

    hi all i wrote all this and realised i waffled on so i thought i would appologise in advance and thank you for reading

    had a really stressful afternoon today trying to sort the airbag fault on my vectra c 2006,
    after reading the fault codes i got b0012 (drivers airbag squib circuit 1 high resistance) and b0013 (drivers airbag squib circuit 2 high resistance)
    I removed the airbag from the steering wheel and found the yellow multiplug not sitting correctly! yippie we all think, but no! with the plug pushed back and everything put back together cleared the codes and started it up and here come the swear words as the light comes straight back on, so went on the diagnostics and read the live readings to find drivers airbag circuit 1 has 8.2 ohms resistance and circuit 2 had 6.4 ohms, i didnt have any base settings so couldnt check these against anything but took it all apart again this time i took the yellow multiplug apart and closed the 2 terminals up thinking poor connection, well put it back together yet again opened up live readings on obd and ha curcuit 1 is 5.4 ohms and circuit 2 is 3 ohms so i cleared the fault codes and started the car and.... arghhhh more swear words came out! but! only left with b0012 so im getting somewhere, took it all apart again and closed the terminals on the purple plug, put it all back and circuit 1 resistance is 3 ohms and circuit 2 is 2.4 ohms. clear the codes and .... no light and no fault codes! very happy started car wiggle steering wheel and still off but then ... turn wheel from lock to lock and you guessed it more swear words as the light came on again! code read it and b0012 again, got stressed or brave not sure which and left everything connected but had the airbag sitting forwards to look behind, watching the resistance on obd i wiggled the yellow and purple wires and found where the wires go out the back of the steering wheel made the resistance change from 2.5 to 8.2 ohms, ive taken the wheel off and found the wires go onto a long spiral curled up around the steering collumn, i couldnt find any breaks in the spiral or any more poor connections at that point i gave up, if anyone could help i could be over the moon (and stress free)

  2. #2
    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

    Trim : SRi

    Engine : A20DTH

    Year : 2009

    Mileage : 88000

    Default

    Do u have two plugs on the airbag or one? And have u always had this problem since owning the car or has the issue just happened?
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

  3. #3
    Regular Member simon7257's Avatar
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    there is 2 plugs with 2 wires out of each, one yellow and one purple, the light only came on after i parked the car up about 8 months ago for about 4 months while using another car but ive had the car from 1 year old without any issues

  4. #4
    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

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    I am sure I have seen somewhere that says this being caused by an ABS plug that needs cleaning. I am sure that someone will know more about it
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

  5. #5
    Regular Member simon7257's Avatar
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    Default

    ok cool thanks for your help i will look into that

  6. #6
    Regular Member lee gsi's Avatar
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    Also check the connections to the Cim as that is part of the airbag circuit.

  7. #7
    Full Member merikiito's Avatar
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    also check the plugs under the seats as well
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

  8. #8
    Regular Member simon7257's Avatar
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    checked the plugs under both seats till i was blue in the face with no effect, will check the CIM in daylight, its strange how i can chnge the resistance on the obd by wiggling the wires as they go through the steering wheel to the collumn but i cant find anything wrong with it, as im sure most of you know its now an instant fail on your mot if your airbag comes on and stays on or doesnt come on at all! at least i have at least 6 months till mot time

  9. #9
    Admin plasma's Avatar
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    sounds like the clockspring (i think its called that) has/is going, this is the bit which is like a ribbon cable... You said the resistance changed as you turned the wheel? Could be its gone taught and stretched and ripped internally..
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  10. #10
    Regular Member simon7257's Avatar
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    yep thats the bit, i had that spring all out infront of me so i checked it all for breaks but couldnt see a thing, put it all back (easier than it looks) and the light stayed off (after reset) until i turned the wheeel lock to lock, only other thing ive just remembered the plastic front part which goes over the coil has 3 plastic lugs which press on the steering wheel they were all broken but i really cant see that causing high resistance

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