Now most cars use remote control keys, and some cars even use smart keys, and car owners have long been accustomed to the convenience brought by remote control keys. But the remote control key needs to be equipped with a battery. What if the battery is dead? Can the car still drive? Let's talk about this topic today.
For most cars, the key is out of power and does not affect the car.
Because compared with ordinary mechanical keys, remote control keys or smart keys are more convenient functions, and there is no difference in vehicle startup. .
For example, ordinary remote control keys can let you lock, unlock, and open the trunk more conveniently, and some can also control the lift of windows and sunroofs. Smart keys are nothing more than more complicated functions, such as keyless entry, keyless start, remote start, etc. These functions require batteries, but you only need to have the key to start the vehicle.
If the car key is out of power and we want to start the car and drive away smoothly, we need to face the following problems:
1, unlock the door
This is not a problem at all, because all cars have one on the driving side door Keyhole, insert the mechanical key and twist it to unlock it. After all, the remote control unlocking is the same operation, but it is controlled by a motor.
Some car doors can’t find keyholes. They are hidden for beauty. They are all hidden behind the door handles and covered with decorative covers. You take out the car key, align it with the hole under the decoration cover and insert it, and then you can remove the decoration cover by tilting it hard.
Can’t find the mechanical key on the car key? It must be hidden in the car key, look for it, there must be.
Someone wants to ask: I opened the door with a mechanical key and the anti-theft system alarmed what should I do? Because the original factory central control lock and the anti-theft system are related, when you use the remote control key to unlock, the anti-theft system will get a signal and the alarm will be disarmed, and when the mechanical key is used to unlock the anti-theft system without receiving the remote control signal, it will be considered that the vehicle has been abnormally broken into The alarm is working.
In fact, don't worry at all at this time, just insert the key as usual and turn the ignition switch to the ON position. At this time, the electronic anti-theft system of the engine will verify the legitimacy of the car key, and the alarm will be cancelled after verification.
So opening the door is not a problem.
2, start the vehicle
Current cars have an engine electronic anti-theft system, and there is an anti-theft chip hidden in the car key. How do you deal with the engine electronic anti-theft system when the car key is out of power? In fact, there is no need to worry at all, because the anti-theft chip of the car key does not need the car key to supply power. There is a coil in the chip, and the electromagnetic wave when the car communicates with the key can make the chip generate enough electricity. For example, in the picture above, this anti-theft chip is completely independent of the car key circuit board, so when you allocate a new car key, you must remember to pull out this chip and put it in the new key.
So when you open the door, don't care if the battery is powered or not, just plug in the key to ignite, no problem at all.
The same principle applies to the one-key start of the car. When the car key is out of power, you put the key close to the sensing area and press the start button, and the car can start normally. The sensing area is generally near the start button, and some cars are designed in the central armrest box, etc., depending on the user manual, in short, there must be.
The car key is out of power and the security is higher.
This is not nonsense, it is true. Because the remote control key signal is easy to be interfered, when you lock the car, you watch the car lights flash, but the door is not locked and the keyless start system is said to be able to open the car door in the form of signal relay. The fundamental reason lies in the car. The radio signal from the key. When the car key is out of power, there will be no signal, so there is no need to worry about this problem.
It can be seen that whether the car key has electricity or not will not affect you to drive the car normally.
