What to Do When the Car Lock is Broken and Won't Open?

Can the Horn Work Without a Relay?

No. Without a relay, thicker wires are required to connect the button switch on the steering wheel, making wiring quite challenging. Relay: A relay (English name: relay) is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the change in the input quantity (excitation quantity) meets specified requirements. It establishes an interactive relationship between the control system (also known as the input circuit) and the controlled system (also known as the output circuit). Typically used in automated control circuits, it essentially acts as an "automatic switch" that uses a small current to control the operation of a larger current. Therefore, it plays roles such as automatic regulation, safety protection, and circuit conversion in electrical circuits. Function of the Horn Relay: It amplifies the current. When a single electric horn is installed in a car, the horn button usually controls it directly. However, most cars are equipped with two types of horns, high and low pitch, or even high, medium, and low pitch electric horns to achieve a more pleasant and harmonious sound effect. When two or one electric horn operates simultaneously, the current can reach 15A or even more than 20A. If the horn button is used for direct control, the high current will quickly burn out the horn button. Therefore, a horn relay is employed.

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Is it illegal to put slogans on a car?

Car body stickers are allowed, but relevant regulations must be followed. Annual inspection requirements for car stickers: During vehicle annual inspections, there are requirements for the size and placement of stickers. Reflective stickers are not allowed; secondly, the area of stickers must not exceed one-third of the total vehicle area, and stickers are not allowed on the front and rear windshields or rearview mirrors. Special vehicles such as buses, hazardous material transport vehicles, school buses, and engineering vehicles are not allowed to have any stickers except for the required signs, otherwise they will not pass the annual inspection. Legal provisions: Article 13 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" stipulates: "Motor vehicles shall not spray, paste signs or body advertisements that affect safe driving." As long as the stickers do not affect the operation of the vehicle and do not significantly alter the appearance of the vehicle, it is acceptable. For example, slogans cannot be pasted on the rearview mirror or rear glass, nor can the entire vehicle be covered with slogans to the point where the original appearance of the vehicle is unrecognizable.

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Is it illegal to put advertising slogans on a car?

Unapproved and unregistered vehicle body advertisements are illegal. They become legal only after registration. However, no advertisements are allowed on the front, sides, or rear windshield of the car, as this can easily obstruct the driver's view and affect safe driving. During vehicle inspections, any advertisements on the windshield will be required to be removed; otherwise, the vehicle will not pass inspection. Additionally, painting or pasting advertisements on the vehicle body must comply with regulations and require the completion of vehicle appearance modification procedures at the vehicle management department. Advertisements on the vehicle body are only permitted on the sides of the car, outside the window glass. Advertisements are not allowed on the front and rear windshields, the front hood, or the trunk lid.

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What Causes the Throttle Flap to Move When Opening and Closing the Car Door?

Throttle flap movement is likely due to the throttle motor not being properly matched. Check if the vehicle has recently experienced a power disconnection or if the throttle has been cleaned. Throttle Matching Method: The vehicle's onboard computer has an automatic learning function. Disconnect the negative terminal of the battery again, causing the ECU to lose power, then reconnect the negative terminal of the battery—sparks may occur. Under normal circumstances, this can complete the throttle matching process. Signs That the Throttle Needs Replacement: If the car's throttle operates unevenly, frequently gets stuck, and subsequently leads to issues such as failure to start, high idle speed, or poor acceleration, it may need replacement. The flexibility of the car's acceleration is closely related to the cleanliness of the throttle. Cleaning the throttle can reduce fuel consumption and make the engine more responsive and powerful.

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Will Not Washing a New Car Have Any Impact?

Not washing a new car has no immediate impact, but regular washing is necessary later on. Damages of Not Washing After Rain: Urban rainwater is acidic. If not cleaned promptly, it can harm the car's paint. Additionally, rainwater often contains other impurities. If not rinsed off in time, prolonged exposure to sunlight can leave water stains on the car's surface, which may affect the paint if not cleaned promptly. In the short term, there isn't much noticeable impact, and many car owners might skip washing. However, if possible, washing the car after the rain stops is beneficial. A simple rinse with a cleaning agent will suffice. Damages of Long-Term Neglect: Washing a car isn't just about removing dirt; it's also about protecting the paint. After rain, you might notice that some cars have water droplets forming on their surfaces. This happens because car owners who maintain their vehicles well frequently wash them, removing dust, tar, resin, and other particles that stick to the paint, keeping it smooth. As a result, rainwater forms into droplets.

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Why Install Wider Rear Wheels?

Widening the rear wheels of a car can improve the vehicle's grip and also enhance its visual appeal. Enhancing visual appeal: Generally, modified wider tires and rims range between 18-22 inches in size. Larger rims require tires with a lower aspect ratio, and the combination of larger rims with wider, flatter tires undoubtedly offers a more aesthetically pleasing look. Providing stronger grip: Wider tires increase the contact area with the ground, resulting in greater friction and improved grip. With ESP and ABS turned off, flooring the accelerator is less likely to cause tire slippage.

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What to Do When the Car Lock is Broken and Won't Open?

Can the Horn Work Without a Relay?

Is it illegal to put slogans on a car?

Is it illegal to put advertising slogans on a car?

What Causes the Throttle Flap to Move When Opening and Closing the Car Door?

Will Not Washing a New Car Have Any Impact?

Why Install Wider Rear Wheels?

Can You Wear Slippers in the Passenger Seat?

Will points be deducted for out-of-town vehicles driving in the wrong direction?

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How often is the National IV standard vehicle inspected?