Key Lever
Auto Transponder key and car keys
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What is Transponder key?
- Transponder keys may also be called “chip keys”. Transponder keys are automotive ignition keys with signal-emitting circuits built inside.
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Why need chip key?
- Chip Keys successfully protect cars from theft in two ways: forcing the ignition cylinder won’t start the car, and the keys are difficult to duplicate. This is why chip keys are popular in modern cars and help decrease car theft.
Many people who have transponder keys are not aware of the fact because the circuit is hidden inside the plastic head of the key. On the other hand, General Motors produced what are known as VATS keys (Vehicle Anti-Theft System) during the 1990s, which are often erroneously believed to be transponders but actually use a simple resistor, which is visible in the blade of the key. If the value of the resistor is wrong, or the key is a normal key without a resistor, the circuit of the car’s electrical system will not allow the engine to be started.
- Chip Keys successfully protect cars from theft in two ways: forcing the ignition cylinder won’t start the car, and the keys are difficult to duplicate. This is why chip keys are popular in modern cars and help decrease car theft.
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How does an chip key work?
- When the key is turned in the ignition cylinder, the car’s computer transmits a radio signal to the transponder circuit. The circuit has no battery; it is energized by the radio signal itself. The circuit typically has a computer chip that is programmed to respond by sending a coded signal back to the car’s computer. If the circuit does not respond or if the code is incorrect, the engine will not start. Many cars immobilize if the wrong key is used by intruders.
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What should you do if there is something wrong with your transponder key?
- You can do something to make up that with the help of transponder chip. For each car has its unique chip, there are many kinds of transponder chips, for example, AUDI glass chip, BENZ ID44 transponder chip, Chrysler ID46 transponder chip and so on. So be careful when you choose your transponder key.
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Car key
- A car key or an automobile key is a key used to open and start an automobile, or both. Modern key designs are usually symmetrical, and some use grooves on both sides, rather than a cut edge, to actuate the lock. It has multiple uses for the automobile with which it was sold. A car key can open the doors, as well as start the ignition, open the glove compartment and also open the trunk (boot) of the car. Some cars come with an additional key known as a valet key that starts the ignition and opens the driver’s side door, but prevents the valet from gaining access to valuables that are located in the trunk or the glove box. Some valet keys, particularly those to high-performance vehicles, go so far as to restrict the engine’s power output to prevent joyriding.Recently, features such as coded immobilizers have been implemented in newer vehicles. More sophisticated systems make ignition dependent on electronic devices, rather than the mechanical keyswitch.
Car ignition and steering wheel lock Ignition switches or locks are combined with security locking of the steering column (in many modern vehicles) or the gear lever(such as in Saab Automobile vehicles). In the latter, the switch is between the seats, preventing damage to the driver’s knee in the event of a collision.
Keyless entry systems, which use either a door-mounted keypad or a remote control in place of a car key, are becoming a standard feature on many new cars. Some of them are handsfree.
Some high-tech automotive keys are billed as theft deterrents. Mercedes-Benz uses a key that, rather than have a cut metal piece to start the car, uses an encoded infrared beam that communicates with the car’s computer. If the codes match, the car can be started. These keys can be expensive to replace if lost and can cost up to US $400.
A switchblade key is basically the same as any other car key, except in appearance. The switchblade key is designed to fold away inside the fob when it is not being used. Switchblade keys have become very popular recently because of their smart compact look. This type of key has also been known to be confiscated by airport security officials.
Because switchblade keys are only developed for new car models, they are usually equipped with a programmed transponder chip.original link:http://blog.autoobdtools.com/car-key-programmer/auto-transponder-key-and-car-keys/
- A car key or an automobile key is a key used to open and start an automobile, or both. Modern key designs are usually symmetrical, and some use grooves on both sides, rather than a cut edge, to actuate the lock. It has multiple uses for the automobile with which it was sold. A car key can open the doors, as well as start the ignition, open the glove compartment and also open the trunk (boot) of the car. Some cars come with an additional key known as a valet key that starts the ignition and opens the driver’s side door, but prevents the valet from gaining access to valuables that are located in the trunk or the glove box. Some valet keys, particularly those to high-performance vehicles, go so far as to restrict the engine’s power output to prevent joyriding.Recently, features such as coded immobilizers have been implemented in newer vehicles. More sophisticated systems make ignition dependent on electronic devices, rather than the mechanical keyswitch.
About the Author
I’m a obd automotive diagnostic tools writer of autoobdtools.com.after graduated from university. I’ve been in the automotive industry for three years.
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