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Old Jun 1, 2016 | 07:58 AM
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OK next on the very long list....
Sometimes when I'm just driving along in Cruise control, the sucurity light comes on and stays on until I turn the car off and restart it.

Everything seems normal, no blinking lights or alarms or Horns.
Any Ideas? I was thinking mabe the key is loose and when I hit a bump it slides out a bit?

Thanks

Tony
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Old Jun 1, 2016 | 08:39 AM
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1) Clean your keys and especially around the resistor chip. Sometimes if they're dirty they can cause your symptoms. I believe you can use an electrical contact cleaner to clean out the ignition switch, but I'd wait for Bill Curlee to chime in on that.

2) Try your spare key for a few weeks and see if you still have the issue. This should rule out whether it's your key or your ignition switch.

If those fail then it's possible your ignition switch is going bad. Do a google search for "C5 Corvette Security Light" and search through the various threads. There may be some other pointers I missed.
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Old Jun 1, 2016 | 08:56 AM
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You also might want to try to use just the ignition key and not a heavy key chain. Worked for me.
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Old Jun 1, 2016 | 10:16 AM
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Originally Posted by runner140*
You also might want to try to use just the ignition key and not a heavy key chain. Worked for me.
Yeah, I was thinking the same thing, I have two sets of keys on the same keychain, one for my blaser and one for the vette.

Thanks

Tony
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Old Jun 1, 2016 | 11:02 AM
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Heres the circuit:

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Old Jun 1, 2016 | 11:05 AM
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When you lose VATS circuit continuity AFTER the engine cranks and runs,,, the SECURITY light will do what yours is doing!

Something in the VATS circuit is starting to fail. Fix it now or tow it later!!
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Old Jun 1, 2016 | 01:09 PM
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Originally Posted by 8VETTE7
The ignition key cylinder may well be very worn or the key you are using may be worn.

The pellet on the key is read by a pair of roller contacts inside the cylinder. If the contact between the contacts and the key are lost the symptoms you are experiencing can happen. Here are a couple of pictures of a broken set of contacts from the key cylinder so you can see what is happening:

Attachment 47986891

Attachment 47986892



If the key is worn and you have a good backup key I would get a new key cut from the backup and ditch the worn one. If you do not have a good backup key you might want to bite the bullet and have a Stealership cut you a new one based on VIN. Not sure if a local locksmith can get the key info based on VIN but worth a couple calls to check. They will be less expensive than the Stealership....
Thanks again for the Help, I just had a new key made for about $20, I purchased a blank from Ecklers Corvette and had it cut at ACE hardware, Maybe by a new ignition switch from Ecklers, thaks again for your rapid response and awsome help 8VETTE7 and Bill Curlee and others

Last edited by NavyGunner1980; Jun 1, 2016 at 01:10 PM.
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Old Jun 1, 2016 | 02:50 PM
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ABSOFRIGGENLOOTLY!!!!!!!!!!

If you order an IGNITION SWITCH,,, this is what you will get:







It WILL NOT come with a key cylinder!!!!


The part you need is the IGNITION KEY CYLINDER. The cylinder has the KEY VATS SENSOR on it.

The new cylinder will come with its own KEY. You will need to take the key cylinder to a LOCK SMITH and have him/her re-pin the new cylinder to work with your old key.

BC
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Old Jun 1, 2016 | 02:51 PM
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Like 8VETTE7 recommended, I would also replace the ignition switch as it is a KNOWN troubled part!
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Old Jun 3, 2016 | 01:05 PM
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Originally Posted by Bill Curlee
Like 8VETTE7 recommended, I would also replace the ignition switch as it is a KNOWN troubled part!
Are there any parts that are not known trouble parts? Ughhhhh
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Old Jun 3, 2016 | 01:29 PM
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LOL!! YES! There are parts on a C5 that last a LONG time and hardly ever break..

Then there are a BIG LIST of parts that are listed as **** POOR DESIGN FAILURE RELATED PARTS.

BC
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