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| jimmers | 1990 INFL REST | ||
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Senior Guru
 
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I've had this light on ever since I got my car. I've been really reading up on it the past few days. Yesterday I removed both sensors, sanded the frame and sensor then bolted the sensors back with dielectric grease. I cleared the codes, but the light turned on minutes later. I cleared the codes a few times. I've reading in my FSM about where the sensors are plugged in to ohm test them, but to me the pictures seem very vague. Can anyone give me a better description as to where the connectors are located?
The codes I get are 16, 25, 26 and 42. Thanks! |
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Posted on: 2009/6/4 16:02
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| TommyT-Bone | Re: 1990 INFL REST | ||
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Chair-man of the bored
 
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I did what you did and I'm in the same spot. I have a defective left front sensor and I'm gonna replace it ... one day .... The codes I believe tell you which sensor is bad. You might have to replace both. The leads go through the firewall and under the dash. You have to drop the plastic in the footwell to get a peek. Yellow is the color. Follow safety practices when playing around those sensors. Disconnect the battery and wait about 10 minutes before doing anything. It's in the FSM.
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Posted on: 2009/6/4 16:06
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Thanks for the reply. I know where the yellow connector is under the drivers side dash which leads to the coil in the steering wheel. I take it the right sensor connectoion is under the kick panel on the passengers side? Are they hard to get at? Maybe the ends of the connections are corroded. Is it possible that the DERM is defective?
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Posted on: 2009/6/4 18:01
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Well I went outside and OHM tested both sensors. They all fall within spec according to the FSM. I guess its my DERM that's bad. I'll have to read the FSM and see if I can test the DERM.
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Posted on: 2009/6/4 18:31
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| CentralCoaster | Re: 1990 INFL REST | ||
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Man, I wish I even knew what a INFL REST or DERM was.
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Posted on: 2009/6/4 19:00
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1985 Z51, ZF6 |
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Trust me, you don't want to know! They are a pain in the you know what!
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Posted on: 2009/6/4 19:15
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Does anyone know if you can test the DERM? If both sensors checked out fine should I just replace the DERM as per the FSM?
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Posted on: 2009/6/5 3:28
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| Matatk | Re: 1990 INFL REST | ||
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Webmaster
 
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Sorry I am no help when it comes to air bags. All I can say is that if you need to replace the DERM good luck! Part # is 10094618 and GM discontinued them. You can find a used one around $500
   http://www.whiteracingproducts.com/in ... duct_info&products_id=846 (this link they are out, but just for reference  http://www.corvetterecycling.com/product_p/10094618-1806.htm Also, I think the derm from 90 or 91 will work, but from what I've read once an airbag is deployed you must replace this piece, hence it is disposable and in high demand. Good luck, Matthew |
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Posted on: 2009/6/5 11:44
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| bogus | Re: 1990 INFL REST | ||
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Grand Imperial Pooh-Bah
 
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Call vette2vette.com. I am willing to bet Jason has some airbags and DERMS in just fine condition. Not all wrecks deploy the airbags...
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Posted on: 2009/6/5 14:34
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Quote:
He was one of the first I called. He doesnt have any DERMS. He just has the sensors. |
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Posted on: 2009/6/5 15:30
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Quote:
Thanks for the links! I found a guy that is willing to sell me one for alot cheaper! So no one has replaced one of these before? It seems like its really buried under the console/dash. |
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Posted on: 2009/6/5 15:31
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| pfdnothing | Re: 1990 INFL REST | ||
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Guru Newb
 
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I got lucky on my 92 , cleaned the fuse
and INFL REST light would go out. |
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Posted on: 2009/6/7 4:07
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| Jeffvette | Re: 1990 INFL REST | ||
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Elite Guru
 
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Quote:
90 is a separate DERM. Can't mix and match. |
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Posted on: 2009/6/7 4:55
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| Matatk | Re: 1990 INFL REST | ||
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Quote:
OK thanks Jeff! Matthew |
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Posted on: 2009/6/7 11:48
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| jimmers | Re: 1990 INFL REST | ||
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Senior Guru
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Well just to close this thread, I replaced the DERM and problem solved. The airbag and INFL REST light went off the first time I started the car after replacing the unit. It was a lot harder then I thought to replace it, but atleast the airbags work now.
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Posted on: 2009/7/27 1:25
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| TommyT-Bone | Re: 1990 INFL REST | ||
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Chair-man of the bored
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Quote:
Whoa.... How about a little more detail on the on the replacement. I might have the need to turn those lights off in my 90 one day ....... Or cover them with stickers ..... |
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Posted on: 2009/7/27 4:18
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| Jeffvette | Re: 1990 INFL REST | ||
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Elite Guru
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Quote:
Tommy, be warned, that buying a DERM is a crap shoot. You may plug it in and have it dead as well. Also a DERM is a use once item. After deployment in the 90, it's garbage. As far as replacing it, the DERM sits on the trans tunnel. It's the same PITA to replace as the CCM. |
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Posted on: 2009/7/27 4:23
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