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What are the reasons for cruise control failure?

1 Answers
Elle
07/30/25 6:20am
There are two main reasons for cruise control failure: 1. Damage to the cruise control switch or circuit malfunctions (such as brake pedal sensor failure, wheel speed sensor failure, and related circuit issues); 2. The ECU cannot receive signals from the cruise control solenoid valve. The function of cruise control is to automatically maintain the vehicle's speed as set by the driver without the need to press the accelerator pedal, allowing the vehicle to travel at a constant speed. The cruise control system, abbreviated as CCS, is also known as the cruise control device, speed control system, or autonomous driving system. Its purpose is to automatically maintain the set speed without requiring the driver to press the accelerator pedal, enabling the vehicle to travel at a fixed speed. Using this system reduces driver fatigue during long highway drives by eliminating the need to control the accelerator pedal constantly, while also minimizing unnecessary speed variations and saving fuel.
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Where is the cabin air filter located in the Volkswagen Passat?

The cabin air filter in the Volkswagen Passat is located beneath the glove compartment on the passenger side. There is an external cover panel that needs to be removed to access the filter housing cover. After removing this cover, you can replace the cabin air filter. The cabin air filter is a crucial component in the air conditioning system that requires regular replacement, as it filters out contaminants from external air. The Volkswagen Passat measures 4870mm in length, 1834mm in width, and 1472mm in height, with a wheelbase of 2803mm. This model features PHEV-specific low-drag wheels and exclusive welcome sill trim that highlights its hybrid identity. It incorporates multiple hot-formed steel components and a lightweight body structure with 79% high-strength steel, providing robust external protection and significantly enhancing overall vehicle safety.
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What is the fuel tank capacity of the Honda CR-V?

Honda CR-V has a 58-liter fuel tank. The fuel tank capacity determines the driving range. For two vehicles with identical engines, the larger the fuel tank, the longer the driving distance. The Honda CR-V measures 4550mm in length, 1820mm in width, and 1685mm in height, with a wheelbase of 2620mm. The handbrake of this vehicle is designed on the left side of the center console, known as the column-mounted style, which not only makes operation more convenient but also provides more spacious front row space. The center console of the Honda CR-V appears simple and elegant. The front armrests abandon the traditional central armrest; instead, each front seat is equipped with an individual armrest, with two cup holders placed between them. These designs are generally very thoughtful.
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How Often Should the Diesel Exhaust Fluid (DEF) Filter Be Replaced?

Car DEF filters should be replaced every 50,000 to 60,000 kilometers. The contaminant-holding capacity of DEF filters is limited, so even when using genuine DEF solution, regular replacement is necessary. Once the filter loses its filtering effectiveness, impurities in the DEF can cause system malfunctions. It is recommended to use genuine DEF solution and replace the DEF filter periodically to ensure proper functioning of the aftertreatment system, prevent engine torque limitation, and maintain normal vehicle operation. Diesel Exhaust Fluid (DEF) is a liquid used in SCR (Selective Catalytic Reduction) technology to reduce nitrogen oxide pollution in diesel vehicle exhaust. Its composition consists of 32.5% high-purity urea and 67.5% deionized water.
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What is the speed limit on highways in Xinjiang?

On highways in Xinjiang, the speed limit is generally 100-120 km/h. Below is relevant information about speed limits in Xinjiang: 1. Details of speed limits in Xinjiang: On national highways in Xinjiang, the speed limit is generally 60 km/h, with some sections limited to 40 km/h, while on highways, it is usually 100-120 km/h. In certain areas, there may also be mobile speed checks. 2. Two types of speed limit enforcement in Xinjiang: There are two methods of speed limit enforcement in Xinjiang. One is average speed measurement, which requires completing a specified distance in no less than the stipulated time. The other is fixed-point speed measurement, where speed is monitored at specific locations, usually announced by navigation devices. When encountering such speed checks, simply drive through the area with fixed-point speed cameras as required.
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How to Obtain a Vehicle License? Is It Provided When Purchasing a Car?

The vehicle license is not provided at the time of purchasing a car. Instead, it is issued by the vehicle management office to the car owner after the vehicle is registered, and the application for the vehicle license must be submitted at the vehicle management office. Below is relevant information about the vehicle license: 1. Introduction to the Vehicle License: The motor vehicle license is a legal document permitting the vehicle to drive on roads within China. The 'Motor Vehicle License' is an important document recognized by Chinese laws and regulations, playing a significant role. Motor vehicle drivers must pay high attention to it to protect their legal rights from being infringed. The 'Motor Vehicle License' in the driver's possession records many crucial details, including the license plate number, owner's name, vehicle model and type, engine number, chassis number, load capacity or seating capacity, initial registration date, and annual inspection records. 2. Functions of the Vehicle License: Proof of vehicle registration, proof of ownership, insurance claim documentation, new car warranty proof.
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What is the Difference Between Crystal Coating and Paint Coating?

The differences between crystal coating and paint coating are: 1. Brightness: Crystal coating produces a diamond-like 3D iridescent effect, while paint coating only provides a crystal-clear mirror-like finish. 2. Water repellency: Crystal coating is inorganic, completely resistant to acid rain erosion, and offers longer-lasting water repellency; paint coating is organic, susceptible to acid rain erosion, and provides less durable water repellency. 3. Durability: Crystal coating uses inorganic crystalline materials, which are highly stable, never oxidizing or decomposing, thus ensuring long-term durability; paint coating employs organic materials that can oxidize over time. 4. Material composition: Crystal coating is entirely inorganic, while paint coating is organic. 5. Principle: Crystal coating forms a protective film of certain thickness on the car paint surface, creating a robust shield; paint coating penetrates the protective agent into the car paint to enhance its protective effect.
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