First of all, our car key is composed of transmitter and receiver two parts, through the owner to press the key button, the key sends the signal, the top antenna of the car receives the signal, after the body controller module certification, and then implement the unlocking and unlocking action. From the working principle, we can learn that the reasons for the failure of the car key are as follows:
< br >
1, there are interference sources around the car, interfering with the signal sent by the car key and the signal received by the antenna. The solution is to remove all the retrofitting equipment inside the car and then conduct a test run.
< br >
2, the key has no electricity, the key can not send out the signal will also lead to failure. The solution is to replace the key battery after a test run to see if there is no fault.
< br >
3, the internal failure of the key will also lead to when the spirit is not working, the solution is to go to a professional maintenance organization for testing.
< br >
4, vehicle antenna or body control module failure, resulting in antenna can not receive signals or body control module can not identify signals will make the car key unlock unlocking function is affected, the solution is to go to professional maintenance institutions for inspection and maintenance.
< br >
If the smart key of the car cannot unlock the door, we can also unlock the door through the mechanical key, and put the smart key in a position with a key symbol in the car for emergency ignition.
Remote control key failure recovery tutorial is:
1. Take out the car remote control key, open the remote control with a screwdriver, and take out the remote control box;
2. Continue to decompose the remote control box with a screwdriver until the remote control circuit board is taken out;
3, the prepared electric soldering iron preheat and prepare to begin welding;
4, it is necessary to accurately identify the patch with poor contact, and carefully strengthen the welding;
5. Reinstall the welded circuit board to the remote control box;
6, click the remote control button, the response is sensitive, the door unlocked normal proof that the remote control has been repaired.