Car rear fog light action
The rear fog light is an important safety configuration for vehicles under special weather conditions, and its core functions and characteristics can be summarized as follows:
Core function
enhance rear recognition
The rear fog lamp uses a high-brightness red light source with a long wavelength and strong penetration, which can significantly improve the recognition distance of the rear vehicle to the front vehicle in low-visibility environments such as fog, snow, rain or sand and avoid rear-end accidents. For example, in thick fog, the red spot of the rear fog light can act as a "beacon in the dark" to provide a clear indication of the position of the rear car.
Warning effect
The luminous intensity of the rear fog lamp is much higher than that of the ordinary taillight, and the strong red light signal warns the rear driver to maintain a safe distance, especially when the line of sight is blocked.
Design feature
Installation location : Usually located at the rear of the vehicle, the light is designed low to the ground to reduce scattering.
Color specification : The international standard stipulates that the rear fog lamp must be red, distinguished from the yellow of the front fog lamp to ensure the clarity of the signal.
Precautions for use
Application scenario : It is recommended to open in extreme weather (such as dense fog, rainstorm, sandstorm) when visibility is less than 100 meters to avoid light pollution caused by overuse.
misuse risk : rear fog light power is large, open in a clear night will glare, may cause visual fatigue behind the driver, but increase security risks.
summary : Rear fog lamp is a key passive safety device in low-visibility environment. Its scientific design and standardized use can effectively reduce the risk of traffic accidents, but attention should be paid to the reasonable use scenario.
The main reasons for the failure of rear fog lights include the following :
fuse problem : A burnt fuse will cause the rear fog lamp to fail to work normally. Check and replace the fuse .
bulb failure : damaged or aging of the bulb will cause the rear fog lamp not to light. Replacing the light bulb with a new one is the solution to this problem .
circuit problem : circuit short circuit, open circuit or poor contact will affect the normal operation of the rear fog lamp. Electrical problems need to be checked and fixed .
switch fault : If the fog lamp switch is damaged or faulty, the rear fog lamp will not work. Replacing or repairing the switch is a necessary step.
relay fault : fog lamp relay problem will affect the normal work of fog lamp, need to replace a new relay .
bad taking of iron : bad taking of iron will lead to fog lights can not work normally, need to check and repair the problem .
The solution :
Check the fuse : open the hood, find the fuse box, check whether the rear fog lamp fuse is blown, if yes, replace the fuse of the same specification .
replace the bulb : check whether the fog lamp bulb is damaged or aging, if so, replace the new bulb .
Check the circuit : Use a multimeter to detect the resistance value of the circuit and repair the short circuit or open circuit .
repair or replace switch : check whether the fog lamp switch works normally, replace or repair the switch if necessary.
Replace the relay : If the relay fails, replace it with a new relay .
Check the bonding : Make sure the bonding is good and repair any poor contact .
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