What is the reason why the high beam of Haval F7 cannot be turned on?
3 Answers
The reasons include: 1. The voltage regulator is faulty, causing excessive voltage. 2. Poor contact of the battery wires, resulting in excessive no-load voltage of the generator. 3. There is a short circuit between the generator armature and the field coil: If the light switch is turned on and the bulb burns out immediately, check for any short circuit in the charging circuit. If bulbs frequently burn out, check whether the generator voltage regulator is set too high. 4. The brake light does not turn on: When braking, the car's brake light does not turn on. The main reasons include: burnt filament, poor grounding, malfunctioning brake light switch, or an open circuit in the wiring. 5. Whether the fuse is burnt out.
I feel there might be several common issues causing the high beams of the Haval F7 to not work. The most frequent case is the bulb burning out after prolonged use, so it's important to regularly check the condition of the lights while driving. Poor contact in the wiring or loose connectors can also lead to unstable current, such as problems occurring after driving on bumpy roads. If the fuse is blown, you can confirm this by checking the corresponding label in the fuse box—replacing a new one is very cheap. Additionally, aging of the headlight switch or a stuck relay can also affect the high beams. It's best to visit a repair shop to have them test the voltage or control module. For safety, avoid trying to fix it yourself, especially since driving at night without high beams is very dangerous. Get it repaired at a professional shop as soon as possible to avoid accidents.
From my driving experience, the high beam failure in the Haval F7 involves some technical details. Filament burnout is the fundamental cause, with prolonged usage or voltage fluctuations accelerating the damage. Additionally, control module malfunctions can disrupt signal transmission - for instance, a faulty combination switch or relay contacts may cause unresponsiveness when operating the lights. Circuit shorts or breaks are also culprits, as wire aging or moisture corrosion can cause interruptions. I recommend first using a multimeter to check circuit continuity; if tools aren't available, seek professional assistance. This issue demands attention because missing high beams pose significant risks on highways or rural roads. Timely troubleshooting saves both money and peace of mind.
