Car front fog light action
The main function of vehicle front fog lights is to provide high brightness scattered light source in low visibility conditions, enhance penetration, help drivers see the road ahead, and remind other vehicles and pedestrians . The front fog lamp usually emits yellow light. This color of light has a long wavelength, strong penetration, and is not easily scattered in fog. Therefore, it can better illuminate the road ahead .
The working principle and design characteristics of front fog lamp
The front fog lamp is generally installed at a lower position in the front face of the vehicle, which is designed to keep the light as close to the ground as possible, reduce the scattering of light, and better illuminate the road ahead .
The light color of the front fog lamp is usually yellow, which penetrates through fog more effectively and provides a clear view .
Use scenarios and effects
foggy : when driving in foggy days, the lighting effect of ordinary headlights will be greatly reduced by fog scattering. The yellow light of the front fog lamp can better penetrate the fog, illuminate the road ahead, and reduce traffic accidents caused by blurred vision .
rainy days : when driving in rainy days, rain will form a water film on the windshield and car light cover, affecting the lighting effect of the headlights. The penetrating power of the front fog lamp can penetrate the rain curtain, making the road ahead more clearly visible .
dust weather : in dusty areas or in dusty weather, the air is filled with a large number of dust particles, affecting the line of sight. The yellow light of the front fog lights is able to propagate better through the sand and dust, providing the driver with a clearer view .
The main reasons for the failure of car front fog lights include the following :
Fog lamp bulb damage : the lamp filament may be broken after a long time, or the lamp is burned and broken, resulting in the fog lamp not shining. At this time need to replace the new bulb .
fog lamp switch damaged : If the fog lamp switch is damaged, the fog lamp cannot be turned on normally. Check whether the switch works properly and replace it if necessary .
fog lamp line fault : poor line contact, open circuit or short circuit will affect the normal operation of the front fog lamp. Need to check the cable connection, if necessary, ask a professional electrician to repair .
blown fog lamp fuse : When the current is too large, the fuse will blow, resulting in circuit interruption. Check and replace the blown fuse .
fog lamp relay fault : relay control current is off, the problem will cause fog lamp can not work normally. Need to replace a new relay .
fog lamp bad iron : bad iron will lead to fog lamp can not work normally. Check and deal with rigging problems .
control module failure : the fog lights of some vehicles are controlled by a special control module. If the control module is faulty, the fog lights will not be on. Professional diagnostic equipment is needed to detect and repair .
The steps to determine and rectify the front fog lamp fault are as follows: :
Check the fuse : Find the fuse corresponding to the fog lamp in the vehicle fuse box and check whether it is disconnected. If disconnected, replace the fuse with the same size .
Check the bulb : Look for blackening, cracking, or breakage of the filament. If there is a problem, replace the bulb with a new .
test circuit : Measure the resistance value of the related circuit to ensure that it is within the normal range. If the circuit is fine, try replacing the headlight switch .
Check the switch and the circuit : ensure that the switch is in good contact and the circuit is securely connected without damage. If necessary, ask a professional electrician to repair .
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