The failure of the car remote control key is generally caused by the following five reasons.
First, the remote control key battery runs out, only need to replace a new battery of the same specification can be restored.
Second, there is a strong electromagnetic field interference around, which will also cause the remote control key to fail. In processing, open the door with the mechanical key, place the remote control key in the emergency identification induction area of the car, and then start the vehicle to leave the strong magnetic interference section, and the key automatically recovers the function.
Third, the failure caused by the damage to the internal chip of the key can be restored by replacing the key chip and matching.
Fourth, the failure caused by the damage of the signal receiver\/transmitter. The signal sent by the key chip is received by the receiver on the car body, and sends the command to the actuator such as the door lock after processing. If the receiver is damaged, the remote control will lose its function, and only the receiver needs to be replaced and matched.
Fifth, the signal processor is damaged. The signal sent by the key and the signal received by the antenna will be checked by the processor, which is equivalent to the core center of the system, and if the remote control function is damaged, it will lose its role. To rectify the fault, replace the processor module and match it.
Ah, the remote control key of our car failed how to solve, in general, if the car key failed, you look at what is the cause, generally speaking, sometimes it is our car key then it has a battery, it may be that the battery is not enough, resulting in a failure of its situation or how, Because most of the reasons are because no batteries are dead, it can't get a signal. A battery change should do the trick.
① The key control unit is broken, and the central control unit cannot receive the signal from the key.
② The probability of the failure of the key match is low, and if it occurs, it needs to be re-matched by the computer.
③ The central control lock is faulty. Could be the door lock's electrical safety burned out, and the line will open.
④ If you can hear the sound of the door lock opening, it may be the control latch of the central lock, because the locking bolt is loose and slipping.
⑤ The location of the owner and the vehicle has a shield (transformer, etc.) that interferes with the signal recognized by the key and central control unit.
⑥ The PDB is welded. Poor contact caused by virtual welding will also cause the sensor to fail. The most \"grounded\" method is to gently pat the distribution box with your hand, and it is possible to contact the virtual solder joint back. However, this is not a long-term solution, or to a professional repair shop to repair.