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Car Forum / Chevrolet / Chevrolet Corvette / July 2005C-4 security light ?
my 84 / c4's security light stays on all the time. car starts and runs fine though. can someone tell the what type security this car is suppose to have? I can't seem to find that it has a security system at all. thanks in advance for any info  Signature"Key" Keyman, check the hatch and door switches. if you need me to send you a wiring diagram i will. Greg >my 84 / c4's security light stays on all the time. >car starts and runs fine though. [quoted text clipped - 3 lines] > >thanks in advance for any info > Keyman, check the hatch and door switches. if you need me > to send you > a wiring diagram i will. Greg ok Greg I will try and check them when I get it out of the shop. I really don't know enough to deal with a wiring diagram. do you know if this car has a security system? most security lights I have seen have to do with a security system. just don't want that sucker to shut down on me one day at an inappropriate time... thanks Signature"Key" >>my 84 / c4's security light stays on all the time. >>car starts and runs fine though. [quoted text clipped - 4 lines] >> >>thanks in advance for any info Yes it has a security system. Usually it takes turning the key in the drivers side lock to disengage it. And it can leave you stranded if you don't watch out. I had an 84 before my 93. SignatureCharlie !993 Corvette Convertible > Keyman, check the hatch and door switches. if you need me to send you > a wiring diagram i will. Greg ok Greg I will try and check them when I get it out of the shop. I really don't know enough to deal with a wiring diagram. do you know if this car has a security system? most security lights I have seen have to do with a security system. just don't want that sucker to shut down on me one day at an inappropriate time... thanks Signature"Key" >>my 84 / c4's security light stays on all the time. >>car starts and runs fine though. [quoted text clipped - 3 lines] >> >>thanks in advance for any info Thanks for the info Charlie. Could you please tell me what I need NOT do? So I may guard against getting stranded. What do I need to do if it happens? Will the key in the door deactivate the system that has just stranded me? Sorry, for so many questions but I really need to know. I have no manual explain this. Thanks Signature"Key" > Yes it has a security system. Usually it takes turning > the key in the drivers side lock to disengage it. And it [quoted text clipped - 29 lines] >>> >>>thanks in advance for any info I got stranded once, it took me taking the cable off the battery and then re-installing them to reset it. My problem ended up being the key itself. SignatureCharlie !993 Corvette Convertible Thanks for the info Charlie. Could you please tell me what I need NOT do? So I may guard against getting stranded. What do I need to do if it happens? Will the key in the door deactivate the system that has just stranded me? Sorry, for so many questions but I really need to know. I have no manual explain this. Thanks Signature"Key" > Yes it has a security system. Usually it takes turning the key in the > drivers side lock to disengage it. And it can leave you stranded if you [quoted text clipped - 21 lines] >>> >>>thanks in advance for any info >I got stranded once, it took me taking the cable off the >battery and then re-installing them to reset it. ok, thanks that answers my question. > My problem ended up being the key itself. Was that on an 84? The key and the key ignition is nothing special. How would that make a difference? I am a retired owner of a 23+ year Locksmith business, This makes me question how. -- "Key" > Thanks for the info Charlie. > Could you please tell me what I need NOT do? [quoted text clipped - 40 lines] >>>> >>>>thanks in advance for any info It was real worn, I had to get one cut by the code. SignatureCharlie !993 Corvette Convertible ""Key" <Keys@Ya.Net> wrote in message \ Was that on an 84? The key and the key ignition is nothing special. How would that make a difference? I am a retired owner of a 23+ year Locksmith business, This makes me question how. -- "Key" > It was real worn, I had to get one cut by the code. -- > Charlie > !993 Corvette Convertible I see but I fail to understand why that would make the security light come on. am I missing something here. thanks for your reply Charlie Signature"Key" > ""Key" <Keys@Ya.Net> wrote in message \ > [quoted text clipped - 5 lines] > -- > "Key" They said it wasn't hitting all contacts. SignatureCharlie !993 Corvette Convertible > It was real worn, I had to get one cut by the code. -- > Charlie > !993 Corvette Convertible I see but I fail to understand why that would make the security light come on. am I missing something here. thanks for your reply Charlie Signature"Key" > They said it wasn't hitting all contacts. The key ignition itself is all mechanical and just operates another mechanism. There are no contacts to be made within that particular key ignition. Sounds like your problem was beyond the key ignition. It is possable that the key ignition itself may have malfunctioned and it was not letting the plug travel to all nessessary positions. A bad key wouldn't cause that to happen. anyway, Thanks for all your help Charlie Signature"Key" >> It was real worn, I had to get one cut by the code. -- >> Charlie [quoted text clipped - 6 lines] > > thanks for your reply Charlie i do not think that it has a full vats system, (does the ignition key have a resistor pellet in it?) but it does have a factory installed anti theft systems. i printed up the first page of the wiring diagram for it and it does have a starter interlock and what they are calling a theft deterrent module. check the fuse for this. if it is not a vats and you system is getting power and ground your problem is PROBABLY is the module if all of the switches are in working order. it looks like it also goes to the clutch switch also. let me know if you need more info. Greg >> Keyman, check the hatch and door switches. if you need me >> to send you [quoted text clipped - 11 lines] > >thanks >i do not think that it has a full vats system, (does the >ignition key [quoted text clipped - 12 lines] > switch also. > let me know if you need more info. Greg No vatts in early c-4's. It probably has a factory installed anti theft system. This happened when I first got the car. Had to have it towed to the shop because all I knew was that it wouldn't start. I tried the key in the door but still nothing. My mechanis did something? I think he mentioned something about a "starter interlock" I don't believe he replaced anything. The car starts fine now but that "security light" stays on. Wouldn't think that the module is not bad because it works fine now except for that darn light :-) I --- don't --- know :-) I will take your advice and check the fuse and the switches. -- "Key" >>> Keyman, check the hatch and door switches. if you need >>> me [quoted text clipped - 14 lines] >> >>thanks > my 84 / c4's security light stays on all the time. > car starts and runs fine though. [quoted text clipped - 3 lines] > > thanks in advance for any info The VATS (Vehicle Anti Theft System) uses a resistor in the base of the key to complete a circuit. Wrong resistor value - no start. Turn off the ignition, wait for a minimum of five minutes without turning on ignition and then see if the VATS reset itself. Common problems - it's raining and you get water on the key as you're unlocking the door. The resistance is wrong and it sets the VATS. After years of use, the contacts wear enough that the contacts on the key are intermittent to the contacts within the lock. It sets the VATS. It's a pain in the tookis. A new key costs anywhere from $22 - $30. I think it may have something to do with whether the guy making the key thinks you need it REALLY bad and REALLY soon. Charlie I get mine from the locksmith, my last one cost $12. SignatureCharlie !993 Corvette Convertible "'Key" <Key@Ya.Net> wrote in message news:YUwBe.141703$6g3.2258@tornado.texas.rr.com... > my 84 / c4's security light stays on all the time. > car starts and runs fine though. > can someone tell the what type security this car is suppose > to have? > I can't seem to find that it has a security system at all. > > thanks in advance for any info > -- > "Key" > > The VATS (Vehicle Anti Theft System) uses a resistor in the base of the key to complete a circuit. Wrong resistor value - no start. Turn off the ignition, wait for a minimum of five minutes without turning on ignition and then see if the VATS reset itself. Common problems - it's raining and you get water on the key as you're unlocking the door. The resistance is wrong and it sets the VATS. After years of use, the contacts wear enough that the contacts on the key are intermittent to the contacts within the lock. It sets the VATS. It's a pain in the tookis. A new key costs anywhere from $22 - $30. I think it may have something to do with whether the guy making the key thinks you need it REALLY bad and REALLY soon. Charlie > I get mine from the locksmith, my last one cost $12. > SignatureCharlie !993 Corvette Convertible that is cheap enough. however, the vats keys have come down in price over the last 5 years or so. back then they wholesaled for 10 to 12 bucks each. now days, they can be bought for less than 5 bucks. my2¢ -- "Key" ---snip--- >> my 84 / c4's security light stays on all the time. >> car starts and runs fine though. [quoted text clipped - 20 lines] > within the lock. It > sets the VATS. It's a pain in the tookis. the 84 has no vats system. also, when the resister pellet in the vats key gets warn. the risisters value changes. when the value changes too much, the risister value does not match the car and the the emissions are shut down.. > A new key costs anywhere from $22 - $30. I think it may > have something to do with whether the guy making > the key thinks you need it REALLY bad and REALLY soon. nah, vats keys very in price between different suppliers. that could very well be why there is a difference in price. Signature"Key" |
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