Reply With QuoteAs far as the impact sensor, if it looks like it's corroded enough that it
might be rusted through, it should probably be replaced. If it's just
surface corrosion I wouldn't be too worried. Yes, disconnecting the battery
and then unplugging the sensor should be all you need to do to replace it.
Same deal with the airbag module itself - however, I don't think you should
have to remove the wheel or airbag module to do that repair. It would
probably be a good idea to disable the system as you described anyway.
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Robert Hancock Saskatoon, SK, Canada
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GM / General Motors: Air-bag sensors question
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- 11-02 01:21 PM #1MnnGuest
Air-bag sensors question
I have a 93 Bonneville that has air-bags for both driver and passenger. I
notice a sensor in front of my rad near the hood latch. It is in bad shape
due to corrosion. Should I replace this sensor? if yes, can I simply
disconnect my battery and wait for about 15 minutes to make sure the
air-bag system is completely disable (service manual said the air bag system
can still deploy up to 2 minutes) then un-plug the yellow connector that
lead to the sensor and replace the sensor?
Same question but for my steering wheel with radio control and air bag. I
need to remove it to fix my radio control button at the same time. With the
battery disconnected, un-plug the yellow connector at the bottom of the
steering wheel column, can I remove the air-bag without concern of the
air-bag deployment?
Thx in advance for you help.
MN
- 11-02 05:41 PM #2RobertGuest
Re: Air-bag sensors question
- 11-02 06:17 PM #3BoboGuest
Re: Air-bag sensors question
Yes, and yes... the 36 volt supply should run down in 2 minutes or less, so
feel free to unplug after 10 or 15 minutes, just to be safe...In changing
the sensor, check the connectors for corrosion also, plus use hand
tools..not air tools to change..... Bobo
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- 11-04 12:43 AM #4clevereGuest
Re: Air-bag sensors question
and be damn careful if you remove the airbag. Even discharged, they can be
dangerous.
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- 11-04 10:03 PM #5shiden_kaiGuest
Re: Air-bag sensors question
"clevere" wrote
If you aren't aware....the bags themselves are not what is
charged or discharged. Once you disconnect the airbag
connector, there is little/no chance of it blowing up unless
you "want" it to blow up.
Ian
- 11-05 08:11 AM #6clevereGuest
Re: Air-bag sensors question
Nope, I wasn't aware. I know that the electrical connection for the airbag
goes into something that creates a chemical reaction (I think on the 94's
it's a charge, but I'm not 100% sure).
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- 11-05 10:56 AM #7NOSPAMGuest
Re: Air-bag sensors question
Thank you gentlemen! Just want to be sure!
Mnn
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- 11-05 10:19 PM #8RobertGuest
Re: Air-bag sensors question
The part that stores energy, and requires you to wait a few minutes for it
to discharge before considering the system disabled, is the DERM (Diagnostic
Energy Reserve Module), or SDM (Sensing & Diagnostic Module) on newer cars.
This stores power to inflate the airbags in the event that electrical power
is lost in a collision.
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Robert Hancock Saskatoon, SK, Canada
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