http://www.snopes.com/autos/techno/keyless.asp
http://urbanlegends.about.com/b/2005/08/11/unlock-your-car-door-with-a-cell-phone.htm
That would require the key fobs to work on sound within the range of
human hearing and/or cell phones to work. They don't use sound, so it's
never going to work period. All remotes either use radio waves or
infrared. And when they use radio waves it's in a completely different
frequency range than cell phones use.
Can you think of any reason why it _should_ work?
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
Radio = magic.
Key fobs = radio.
Cell phones = radio.
Therefore cell phones and key fobs are magic.
And magic will let you do _anything_.
Haven't you learned _anything_ from watching direct-to-cable movies?
The problem with the electronic locks are that they are VERY limited.
Note that, although they usually show the numbers 0-9 there are only 5
buttons. That means you only have 25 possible combinations. Then you
look at the buttons for wear/dirt and it gets even easier. Plus it
doesn't really matter because if they are going to grab a car for parts
they will likely just smash a window and go. Or tow it away on a
flatbed. With a couple of guys in "official" looking gear nobody gives a
second glance.
--
Steve W.
In 50 years, humans will be radio controlled.
Yeah I saw a youtube video on it so it MUST be true. ;)
Maybe we already are...
--
Tegger
I think it works with OnStar. If you have OnStar you can call them on a
phone and they can unlock the car.
yeah they can do everything with onstar. diagnostics and all..
That's because OnStar is connected to the car physically. Not the same
thing at all.
> Don Stauffer <stau...@usfamily.net> wrote in
> news:4b2b9b81$0$16048$815e...@news.qwest.net:
>
>>
>>
>> I think it works with OnStar. If you have OnStar you can call them on
>> a phone and they can unlock the car.
>>
>
> That's because OnStar is connected to the car physically. Not the same
> thing at all.
>
Actually it is much the same thing.
For door unlocking, the primary difference between a keyfob transmitter and
the OnStar transmitter is the operating range.
--
Tegger
Well, the frequencies are different. And the codes that are sent. They
are both radio but are still quite a bit different.
They are both radio, and that's the crux of the matter.
It is not important what is "connected to the car physically" or isn't, or
what the frequencies/codes are, it's still a transmitted radio signal. And
you cannot transmit a radio signal via a cell phone in the manner described
by the OP (way back on Thursday).
--
Tegger
If it's physically connected to the car in the right places you can do a
*lot* more things than any fob can do. The fact that OnStar is inside
the car led me to believe it was connected to the car. I've never had a
car with it. Don't really want it.
There are many more than 25 possible combinations. The actual number is
5*5*5*5*5 = 5**5 = 15,625
The codes are order dependent and you can repeat numbers.
Any theif that wants to steal the car could break in a lot faster with a
slim jim, or just by braking the glass.
Ed
For those whose curiosity is raised, it takes roughly 1/2 hour to do
1,000 combinations - I actually did it sucessfully on a cheap bike lock
once. So that would take roughly 8 hours give or take.