Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Jimbob on 21 May 2010, 09:27:24

Title: More airbag weirdness.
Post by: Jimbob on 21 May 2010, 09:27:24
Been fighting by drivers side airbag for years now....

resistance sits at 2-3 ohms, then creeps up over a month to 6 ohms, and puts the light one.

I normally remove the seatback, reseat the connector, sometimes using switch cleaner, reassemble and jobs a goodun. (once I reset with "My Naff Code Reader")

I have carried out the TIS Instructions to remove the connector at the side of the seat from the equation.

I have swapped the airbag with a different one.

Ive bent the pins in the connector to ensure a tighter fit.

My common sense (may be misplaced) tells me, that if playing with the connector to the airbag itself fixes this issue, then that must be where the fault lies.

The latest weird one was I checked the resistance earlier in the week, was 6, did it again last night before taking the seat apart, and it was back to 2!

What on earth is causing this?

Should I try another airbag? (reluctant to 'borrow' one from her car as that is working fine, and £1 to 1p once I meddle it will never be the same again.
Should I replace the wiring from airbag to side of seat?
Or shall I just keep fixing on fail....the car has limited life left now anyway.

Guess I would just love to know whats causing the variation in resistance.
Title: Re: More airbag weirdness.
Post by: TheBoy on 21 May 2010, 09:43:25
A long shot, change ECU?
Title: Re: More airbag weirdness.
Post by: Jimbob on 21 May 2010, 09:45:50
could be worth a try, where is it?  knowing my luck i'd swap it and BANG as the all explode  ;D ;D ;D

Could be, as would expect wiggling the connector to alter resistance, but it doesnt, it seems to be the removing and adding of the bag that fixes it, (exceppting the last self fixing fault)
Title: Re: More airbag weirdness.
Post by: TheBoy on 21 May 2010, 09:48:31
Quote
could be worth a try, where is it?  knowing my luck i'd swap it and BANG as the all explode  ;D ;D ;D

Could be, as would expect wiggling the connector to alter resistance, but it doesnt, it seems to be the removing and adding of the bag that fixes it, (exceppting the last self fixing fault)
under rear passenger face vents - need to remove centre console I believe.

If its the same as yours, I have one from a 2000 facelift here ::)



Another test - if you discon battery, reconnec after an hour of so, does resistance reading drop?
Title: Re: More airbag weirdness.
Post by: Jimbob on 21 May 2010, 09:54:30
sounds too much hassle to swap on a whim then  :'(

not tried measuring before and after battery removal.
Title: Re: More airbag weirdness.
Post by: TheBoy on 21 May 2010, 09:56:54
Quote
sounds too much hassle to swap on a whim then  :'(

not tried measuring before and after battery removal.
If the discon/recon batt drops the resistance back, might be worth doing it.  About 20mins to remove the console, so not massive work...
Title: Re: More airbag weirdness.
Post by: Jimbob on 21 May 2010, 09:59:38
ill get those measurements next time it happens.

my stereo is a tight fit, so somewhat reluctant to remove it  ;D
Title: Re: More airbag weirdness.
Post by: TheBoy on 21 May 2010, 10:29:52
Quote
ill get those measurements next time it happens.

my stereo is a tight fit, so somewhat reluctant to remove it  ;D
Why would you want/need to remove stereo?  Its the bit along the tunnel that needs to come off...
Title: Re: More airbag weirdness.
Post by: Jimbob on 21 May 2010, 10:48:51
ahhh, misunderstood.
Title: Re: More airbag weirdness.
Post by: I_want_an_Omega on 22 May 2010, 21:06:27
How are you measuring the resistance?
Title: Re: More airbag weirdness.
Post by: Jimbob on 22 May 2010, 21:07:10
Quote
How are you measuring the resistance?


"My Naff Code Reader"  / tech2 tell you what the ecu is reading
Title: Re: More airbag weirdness.
Post by: Jimbob on 22 May 2010, 21:09:12
ohhhh, and the light is back again today...


along with
a mysterious oil leak smoking like a good un
no air con condensor
wishbones on their way out
2 front tyres getting to the limit
suspension knock at the rear
rust setting in hard.
4 hexaganol wheels

hmmmmmmmmm  :'(
Title: Re: More airbag weirdness.
Post by: I_want_an_Omega on 22 May 2010, 21:27:23
I know what you mean .........

Got a "new" '99 3.0 Elite a few weeks ago - so far have done ......

Waterpump
Cambelt kit
Aux tensioner & belt
Changed oil/filter
Removed SAI system
Blanked off EGR
Cam covers
Spark plugs
Air, pollen & fuel filters
Breathers
Exhaust from cats back
Front wheel bearings
Front discs/pads
Steering idler
4 new tyres

Have still got a fair bit more to do, but reckon its worth it as its only got 74k on the clock ......

SWMBO recons I'm bonkers ........
Title: Re: More airbag weirdness.
Post by: Jimbob on 22 May 2010, 21:32:06
aye, its the what have you got to do on the next one...

the engine is so sweet, even approaching 140k, after Marks HG etc work, it really does drive beautifully.

Its one of those cars I am unreasonably attached too, just can't see past those jobs, the oil leak especially, cam cover done 3 times, and still has a very intermittant leak somewhere, leaks and smokes like hell, then nothing for weeks.  I dunno, fed up with it.  been battling that airbag issue for 3 years.  Very, very sorry to say it, but I think the end is coming.  :'( :'( :'( :'( :'(

Title: Re: More airbag weirdness.
Post by: I_want_an_Omega on 22 May 2010, 21:38:58
I did cam covers for the first time ever last week - have to do then again as have leak on LH bank.

Probably dislodged something when putting the cover back  :'(

Mind you, she started 1st time after all the engine work - I was gobsmacked I can tell you!
Title: Re: More airbag weirdness.
Post by: Del Boy on 22 May 2010, 21:51:42
Quote
aye, its the what have you got to do on the next one...

the engine is so sweet, even approaching 140k, after Marks HG etc work, it really does drive beautifully.

Its one of those cars I am unreasonably attached too, just can't see past those jobs, the oil leak especially, cam cover done 3 times, and still has a very intermittant leak somewhere, leaks and smokes like hell, then nothing for weeks.  I dunno, fed up with it.  been battling that airbag issue for 3 years.  Very, very sorry to say it, but I think the end is coming.  :'( :'( :'( :'( :'(

Thats how it got with mine after 5 years, had trouble free motoring for 4 years, then eveything seems to come at once with Omega's  :'(
Title: Re: More airbag weirdness.
Post by: Andy H on 22 May 2010, 22:03:09
If it isn't the plug then maybe it is the crimped connections in the pins in the plug :-/

Crimped connections are generally reliable but maybe GM trapped the insulation in one of the pins in your connector.
Title: Re: More airbag weirdness.
Post by: Lazydocker on 22 May 2010, 22:08:11
Quote
... cam cover done 3 times, and still has a very intermittant leak somewhere, leaks and smokes like hell, then nothing for weeks.  ...

Yep... Mine have no outward signs of leaking but got a puff of smoke the other day... 8 or 9 months ago had a little (and it was a little) oil in the plug wells... But not a regular leak and no evidence of it :-/ :-/
Title: Re: More airbag weirdness.
Post by: Marks DTM Calib on 22 May 2010, 22:15:19
Just connect a pipe to a bin liner and place it on the side of your seat wit the pipe under the seat.

If you get into a 'situation' your farts would be enough to inflate a small bouncy castle!
Title: Re: More airbag weirdness.
Post by: Lazydocker on 22 May 2010, 22:54:34
Quote
Just connect a pipe to a bin liner and place it on the side of your seat wit the pipe under the seat.

If you get into a 'situation' your farts would be enough to inflate a small bouncy castle!
;D ;D ;D ;D ;D ;D ;D ;D ;D ;D
Title: Re: More airbag weirdness.
Post by: Jimbob on 23 May 2010, 09:00:58
Quote
Just connect a pipe to a bin liner and place it on the side of your seat wit the pipe under the seat.

If you get into a 'situation' your farts would be enough to inflate a small bouncy castle!


Less of the 'small' please  :y
Title: Re: More airbag weirdness.
Post by: Jimbob on 27 May 2010, 19:47:44
battery disconnect test in progress....
Title: Re: More airbag weirdness.
Post by: Jimbob on 27 May 2010, 20:11:19
Well, disconnecting the battery made no difference, seat back off, connector off, quick spray of cleaner and reassemble, and jobs a goodun.

I give up, ill just do this every now and again....

FYI

Measure, Original data, after disconnect, after connector reseat

System Voltage      13.59 V      13.98 V      13.79 V
System Voltage Status      Okay      Okay      Okay
Airbag Configuration      Side Airbags      Side Airbags      Side Airbags
Pretensioner Configuration      Driver&Passenger      Driver&Passenger      Driver&Passenger
Driver Airbag Squib Circuit Resistance      3.13 Ohm      3.03 Ohm      3.05 Ohm
Passenger Airbag Squib Circuit Resistance      2.17 Ohm      2.12 Ohm      2.10 Ohm
Driver Pretensioner Circuit Resistance      2.59 Ohm      2.61 Ohm      2.56 Ohm
Passenger Pretensioner Circuit Resistance      2.43 Ohm      2.41 Ohm      2.41 Ohm
Driver Side Airbag Squib Circuit Resistance      5.15 Ohm      5.15 Ohm      3.42 Ohm
Driver SAS Message Status (Side Airbag Sensor)      Okay      Okay      Okay
Passenger Side Airbag Squib Circuit Resistance      2.46 Ohm      2.43 Ohm      2.43 Ohm
Passenger SAS Message Status (Side Airbag Sensor)      Okay      Okay      Okay
Reset Passenger Side Airbag After Activation (DTC69)      Inactive      Inactive      Inactive
Reset Driver Side Airbag After Activation (DTC68)      Inactive      Inactive      Inactive
Reset Pretensioning Devices After Activation (DTC67)      Inactive      Inactive      Inactive
Driver SAS Initialisation Status (Side Airbag Sensor)      Okay      Okay      Okay
Driver SAS Communication Error (Side Airbag Sensor)      None      None      None
Passenger SAS Initialisation Status (Side Airbag Sensor)      Okay      Okay      Okay
Passenger SAS Communication Error (Side Airbag Sensor)      None      None      None
DTC set since      21000      21000      21000