What are the reasons for both high and low beams of Jinbei headlights not working?
3 Answers
Jinbei headlights both high and low beams not working reasons are as follows: 1. The bulb may be damaged and should be replaced. 2. The high beam combination switch may be faulty and needs replacement. 3. Poor contact of the wiring behind the headlight, unplug the wire and clean the contact with an eraser then reconnect. The following is an introduction to the functions of car lights: 1. Car headlights: Used for road illumination during night driving. 2. High beams: High beams have a high angle and long distance, improving visibility and expanding the observation field. 3. Width indicator lights: Indicate the width of the car to alert other vehicles. Width indicator lights are used during evening driving to make the car visible to others. 4. Low beams: Low beams have a low angle and short distance, clearly distinguishing objects, with a visible illuminated area of 2-3 meters in diameter on the ground. The area from the beam cutoff line to 30-40 meters mainly relies on ground-reflected light, where brightly colored objects can be distinguished, but stationary dark-toned objects on the road are hard to notice.
I've repaired quite a few Jinbei vehicles, and this issue is very common. If both the high and low beams don't work, it's most likely a problem with the circuit or control components. First, check the headlight fuse—it's located in the fuse box under the steering wheel. If it's blown, the current won't pass through. Next, see if the headlight switch or relay is faulty—worn switch contacts can completely cut off power, while an aged relay fails to transmit signals. Short circuits or broken wires are also common culprits, especially in older Jinbei models where wiring tends to degrade and crack, causing localized overloads. A faulty voltage regulator can destabilize the alternator's output, indirectly burning out bulbs. Don't delay—driving at night is too dangerous. Head to a repair shop quickly and use a multimeter to test the system. A simple fix can solve the problem. Regularly cleaning battery terminals and wire connectors can prevent issues down the line. Many owners overlook this, turning minor problems into major headaches—hardly worth the trouble.
I understand the experience of driving a Jinbei for ten years and suddenly having the headlights go out completely. That time, I pulled over in a hurry to check, and it turned out the headlight fuse had blown. I spent a few bucks to replace it myself, and the lights came back on. The reason is that fuses act as protective devices in the circuit—they melt when the current is too high to prevent wire damage. It's rare for both high and low beams to fail simultaneously; it's more likely a shared fuse or a switch issue rather than individual bulb problems. I recommend keeping some spare fuses handy. Just pop the hood or check the fuse box inside the car for labels—it’s cost-effective and hassle-free. However, if the problem recurs, it could indicate a short circuit or relay failure, in which case you’d need a professional mechanic. Bottom line: don’t panic. Start by checking the fuse, then inspect for loose or corroded wire connections. Jinbei trucks are easy to fix for issues like this without spending much.
