Car LED headlight decoding problems are usually caused by the original vehicle headlight control circuit being controlled by the on-board computer, and the working principle, current and power of LED lights are different from those of halogen lights, causing the on-board computer to fail to detect the feedback signal of the modified LED lights, thus triggering the fault light. The following are some common decoding methods:
Capacitor decoding: Filter the detection signal of the bulb by the driving computer through parallel capacitors. 22000UF and 4700UF capacitors are commonly used. Pay attention to the positive and negative poles of the capacitor. It is recommended to use imported capacitors.
Resistor decoding: Calculate the required resistance value according to Ohm’s law, but this method generates a lot of heat and is not recommended.
Modify the driving computer CAN protocol: Use special decoding software to modify the car coding, which is suitable for Volkswagen, Skoda, Audi and other models.
Line group decoding: For Korean cars, add a group of lines to solve the problem of bulb flickering caused by large starting current.
Multiple decoding: For models with complex protocols, multiple decoding methods may need to be used at the same time.
When performing decoding operations, it is recommended to be performed by professional technicians to ensure vehicle safety and avoid unnecessary damage to the vehicle.
Post time: Dec-30-2024
