The function of the rear flat light of a car
The rear position lights (also known as width indicator lights) of a car are installed at the rear of the vehicle. Their main functions include:
Indicate the vehicle's outline and width
Yellow, white or red lights are used to indicate the presence and approximate width of the vehicle, helping other road users (such as when meeting oncoming vehicles or overtaking) to determine the space occupied by the vehicle and avoid collisions due to insufficient visibility.
Reversing Safety warning
When in reverse gear, it automatically lights up and sends a movement warning signal to the vehicles and pedestrians behind, reducing the risk of accidents when reversing.
Braking status indication
When braking, a red light comes on to alert the driver behind to pay attention to the braking action and reduce the risk of rear-end collision.
The layout of different vehicle models may vary. For instance, ordinary family cars usually have width indicator lights at both ends of the rear, while large vehicles (such as buses and trucks) tend to add width indicator lights on the roof or sides.
The impact of replacing the rear flat lights (taillights) of a car on the retention rate needs to be analyzed based on specific circumstances
Original factory parts have little impact
If the original factory taillights are replaced, it usually does not have a negative impact on the retention rate. In fact, the value may even increase due to the restoration to the original factory condition. The original factory parts are designed and safe to match the vehicle and comply with regulatory requirements. After the original factory taillights are replaced, as long as the installation process is professional and the quality of the accessories meets the standards, it generally will not lead to devalue.
Non-original factory parts have a significant impact
Non-original factory taillights (such as counterfeit or modified parts) may cause potential problems:
Youdaoplaceholder0 Design differences : Non-original factory taillights may not be in harmony with the original vehicle in terms of appearance and function, affecting the overall aesthetics.
Youdaoplaceholder0 Safety concerns : Some modified taillights use high-brightness leds or dynamic turn signals, which may lead to safety performance disputes.
Youdaoplaceholder0 Regulatory risk : If local regulations are not met (such as color and brightness not matching), it may result in failure to pass the annual inspection, directly affecting the retention rate.
Other influencing factors
If the taillights are damaged due to an accident and need to be replaced, the overall condition of the vehicle should be evaluated. When related components such as fenders and bumpers are damaged, the depreciation may be even greater.
It is recommended to choose original factory specification parts when replacing to ensure compliance with regulatory requirements. Also, keep maintenance records to minimize the impact on the retention rate.
When the rear lights of a car do not work, the possible causes and solutions are as follows:
Flash relay failure
The problem of the car's rear lights not lighting up is often related to the flash relay. To solve this problem, the following steps should be followed
First, locate the flasher below the speaker head. This requires removing the speaker head and the air conditioning control panel.
Next, remove the bracket and disconnect the wiring harness, then take off the old relay. If necessary, spare relays of the same size can be purchased for replacement.
After installing the new relay, restart the vehicle and check the effect. If the problem persists, further investigation may be necessary.
Problems with the dashboard lighting or power supply lines:
The rear lights of a car not working may also be due to damage to the dashboard lighting or a malfunction in the power supply line.
Check if the power fuse on the dashboard has blown. If so, replace it with a new one.
If the fuse is normal, it may be necessary to disassemble the dashboard to check if the lighting is damaged. If necessary, replace it.
If a single lighting lamp doesn't work, it might mean that other parts of the circuit are normal. Just find and solve the problem.
Overall, the problem of a car's rear lights not working can usually be identified and resolved by checking the flash relay and the dashboard lights. For unfamiliar operations, it is recommended to seek the help of professional technicians to ensure safety and effectiveness.
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