What to Do When BYD S6 Fails to Detect the Key?

[DiCora]

Here are the specific reasons and solutions for the BYD S6 failing to detect the key: 1. Battery power shortage. For cars with batteries used for more than 2 years or parked for a long time, you can use a multimeter to measure the voltage to determine if the battery is low on power. Generally, the voltage should be around 12V when not powered, and above 10V when starting. This can rule out battery failure. 2. Poor fuse contact. Gently tap the fuse box with your hand. If the car starts, it indicates poor fuse contact. 3. Starter motor failure. If the battery has power but you don't hear the starter motor sound when pressing the start button, it may be a starter motor failure, and you need to replace the starter motor at a repair shop. 4. Ignition system failure. Ignition system failures include ignition coil failure, spark plug failure, and connection line failure. The S6 has two ignition coils and four spark plugs. The chance of both ignition coils or spark plugs failing simultaneously is relatively high. Check the connectors before and after the ignition coil to prevent loose connections and observe if the car can start. It is recommended to leave this to professionals. 5. Fuel pump power supply failure. You can unplug the fuel pump connector and measure the voltage or current when starting the car.