1. Wiring faulty can be differentiate into 3 type which are open circuit, short circuit, and poor connection.
2. Open circuit might cause by the wiring deteriorated and melted when high current pass through, or being bitten by animal such as rats.
3. Short circuit and poor connection might cause by the wiring broken due to aged or the connector corroded.
4. If the wiring is faulty, it might cause multiple lights not working and suggest to check the condition of each light.
Suggest to repair at workshop during daytime when the environment light is good.
1. Check if there is any fault indicator in the meter cluster.
2. Take out the faulty headlamp bulb to check if it is broken.
3. Use the multimeter to check the wiring, replace the aged wire or restore the faulty connector.
4. Use scan tool to clear the fault code after repairing done.