Airbag harness recall
Senior Member
Joined: 02-01-2006
Posts: 1,470
From: lockport,ny
The definition of "fretting corrosion" is:
Fretting corrosion is a form of accelerated atmospheric
oxidation which occurs at the interface of contacting
materials undergoing slight, cyclic relative motion.
In electric contacts involving non-noble metals,
fretting action can cause rapid increases in contact resistance,
proceeding to virtual open circuits in a matter
of minutes in the worst cases.
In other words, the connector contacts moved very slightly from vibration, causing corrosion, which causes high-resistance.
When I was designing military electronics we always used gold-plated contacts (the "noble" metal) to avoid this problem (among other issues that gold contacts fixed).
Interesting that only one year seems to have this problem (so far). Maybe a different design/vendor for that year.
Steve
Fretting corrosion is a form of accelerated atmospheric
oxidation which occurs at the interface of contacting
materials undergoing slight, cyclic relative motion.
In electric contacts involving non-noble metals,
fretting action can cause rapid increases in contact resistance,
proceeding to virtual open circuits in a matter
of minutes in the worst cases.
In other words, the connector contacts moved very slightly from vibration, causing corrosion, which causes high-resistance.
When I was designing military electronics we always used gold-plated contacts (the "noble" metal) to avoid this problem (among other issues that gold contacts fixed).
Interesting that only one year seems to have this problem (so far). Maybe a different design/vendor for that year.
Steve
Administrator
Joined: 10-13-2011
Posts: 39,900
From: Welland,Ont Canada
Yeah! I slid by my Chebby dealer yesterday they checked my vin and said no reason to concern myself with this recall for my '07.
It was -12 F so very icy and cooolld , but the service writer got me a hot chocolate and let me hang out for 45 minutes enough for the car to shed most of the ice built up in the wheel wells !
It was -12 F so very icy and cooolld , but the service writer got me a hot chocolate and let me hang out for 45 minutes enough for the car to shed most of the ice built up in the wheel wells !
Joined: 09-21-2014
Posts: 3
From: Flint,mi
I also have an 2009. I received a letter from G.M. To make an appointment with dealer to have a replacement of in-line jumper wiring harness connector with fretting corrosion at the terminal contacts. Dealer replaced unsealed connector with a sealed connector. Took about 1 hour. So far so good, no more air bag lite.
Senior Member
Joined: 02-26-2010
Posts: 109
From: San Mateo, CA
I'm assuming this pertains to the right kickboard panel wire issue? I've pulled that wire and lubed it and whenever it rains the warning light comes on for a while until the humidity in the car drops and then goes off. It rains seldom where I live. So, it's definitely moisture/humidity related. I still have to get the ignition recall done. Do they only cut you one key? Wjat about key fobs?
Platinum Member
Joined: 12-06-2009
Posts: 11,718
From: Alabama
2 keys are included in the kit. No new fobs because they aren't part of the recall or the problem.
(somewhere on this site I posted a picture of the recall kit and it's contents. I'll see if I can find it. )
(somewhere on this site I posted a picture of the recall kit and it's contents. I'll see if I can find it. )