Why Can't the Car Door Be Opened with the Key?

1 Answers
Carrie
07/29/25 9:05pm
The car door cannot be opened with the key due to reasons such as a dead key battery, signal interference, a malfunction in the connection mechanism between the door handle and the lock, or the door being frozen shut in winter. Reasons for a dead car key battery: Insufficient battery power in the key itself, key damage, or battery leakage. Reasons for signal interference affecting the car key: A dead car battery or the presence of a signal source near the vehicle. Reasons for car door lock malfunction: Faulty mechanical transmission, damaged door lock switch, a circuit failure in the electronic control switch box, wiring issues, or improper installation of car components and connecting wires.
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