What Are the Reasons Why the Car Key Has Power but Cannot Lock the Car?
1 Answers
Car key has power but cannot lock the car due to control unit damage, matching code failure, central lock malfunction, or signal interference. Below are detailed explanations for the above reasons: Control Unit Damage: If the control unit of the key is damaged, the central control unit cannot receive signals from the key. Matching Code Failure: The matching code of the key fails, which is a less likely occurrence. If it happens, the code needs to be re-matched using a computer. Central Lock Malfunction: The circuit fuse of the door lock burns out, leading to an open circuit. If the sound of the door lock opening can be heard, it indicates the control latch of the central lock is affected due to loose or slipping locking bolts. Signal Interference: There may be a signal jammer (such as a transformer) in the location where the owner and the vehicle are situated, interfering with the signals between the key and the central control unit.