Why does the car display 'service' and fail to start?

1 Answers
ODaniela
07/29/25 9:24pm
This is the vehicle's anti-theft indicator light, indicating that the engine has entered an anti-theft state. Below is an introduction to the car's anti-theft system: 1. Introduction: To enhance anti-theft effectiveness, some vehicles are equipped with a steering lock. The steering lock is used to secure the car's steering shaft. It is integrated with the ignition lock and installed under the steering wheel, controlled by the key. After the ignition lock cuts off the ignition circuit and stops the engine, turning the ignition key to the extreme left position will extend the lock tongue into the steering shaft groove, mechanically locking the car's steering shaft. 2. Types: A car anti-theft device is installed in the vehicle to increase the difficulty and time required for theft, acting as a guardian for the car. By connecting the anti-theft device to the car's electrical circuit, it can prevent theft, intrusion, and protect the vehicle while enabling various functions of the anti-theft device. With advancements in technology, to counter increasingly sophisticated theft methods, various types and structures of anti-theft devices have been developed. These devices can be categorized into four main types: mechanical, chip-based, electronic, and network-based.
Was this review help?
12
0
Share
More Forum Discussions

Can I Take the Subject 1 Test After 10 Days of Registration?

After successfully enrolling in a driving school, you can schedule the Subject 1 test in about 10 days. Before scheduling, you should review the Subject 1 study materials and practice test questions. Enrollment in a driving school is only a preliminary registration. After enrollment, the driving school submits your documents to the Vehicle Management Office. Once approved, the office will issue a serial number, indicating successful registration. After registration, you can schedule the Subject 1 test. According to the "Regulations on the Application and Use of Motor Vehicle Driving Licenses," Subject 1 consists of 100 multiple-choice and true/false questions, each worth 1 point. If you answer 11 questions incorrectly during the test, the system will automatically submit the test and end the exam. Subject 1 Test Content: Regulations on driving licenses and motor vehicle management; Road traffic conditions and regulations; Road traffic safety violations and penalties; Road traffic accident handling regulations; Basic knowledge of motor vehicles; Local regulations; Knowledge of braking systems and safety devices for large and medium-sized passenger and freight vehicles; Special knowledge for wheeled self-propelled machinery, trams, and trolleybuses. Subject 1 Test Notes: During the test, students should dress appropriately—no slippers are allowed. Electronic devices and bags are prohibited in the exam room. Bring your ID card and queue to enter the waiting hall. Observe the instructions and procedures on the large screen, and store personal items in a locker before entering the exam room. At the exam room, the identity verification desk will assign a seat. Once seated, begin the test. Ensure the camera is focused on you and follow exam rules. If you fail the first attempt, a retake is available on the same day. If you fail again, you must pay to reschedule. After the test, queue to collect your score report and sign it. Without a signature, the result is invalid. There is no limit to the number of times you can schedule the Subject 1 test. Each subject can be taken once, with one retake if you fail. If you skip the retake or fail it, the exam ends, and you must reschedule. For Subject 2 and Subject 3, there are only five attempts. Subject 2 and Subject 3 tests can be scheduled after ten days. If you fail the Subject 3 safe and civilized driving knowledge test, your previously passed road driving skills test results remain valid. The driving test consists of three subjects: Subject 1, Subject 2, and Subject 3. Subject 1 covers laws, regulations, and knowledge related to road traffic safety. Subject 2 is the field driving skills test. Subject 3 is divided into two parts: road driving skills and safe and civilized driving knowledge. The safe and civilized driving knowledge test is conducted after Subject 3, so it is commonly referred to as Subject 4. However, the official term (as per the Ministry of Public Security Order No. 123) does not include "Subject 4."
10
3
Share

Which consumes more fuel, sedans or SUVs?

Generally speaking, sedans do, but there are too many uncertain factors to make a definitive comparison in fuel consumption. Many urban SUVs are being developed with lightweight designs, featuring smaller displacements and lighter weights, making them even more fuel-efficient than sedans. On the other hand, some sedans have large displacements and heavy bodies, like Mercedes-Benz and BMW models with 5-6L engines, which can consume more fuel than SUVs under normal driving conditions. Fuel efficiency also depends on the engine and transmission technology of the automaker. Well-designed systems can save a significant amount of fuel. Essentially, it comes down to the vehicle's displacement and body weight. Due to their heavier weight, SUVs generally consume more fuel than sedans. However, there are now many hybrid SUV models on the market that offer spacious interiors, high ground clearance, and low fuel consumption without the high operating costs. Excluding hybrid SUVs, when comparing sedans and SUVs with the same displacement, sedans are typically more fuel-efficient. This is because sedans have lower drag coefficients at high speeds, while SUVs, with their larger size, broader frontal areas, and greater weight, consume considerably more fuel. In this regard, SUVs have a slightly more noticeable disadvantage, leading to higher fuel costs. Additionally, a significant portion of fuel consumption issues can be attributed to incorrect driving habits.
18
1
Share

What is the appropriate standard tire pressure for cars?

The standard tire pressure is generally between 2.4-2.5 bar. If the tire pressure is too low, the contact area between the tire and the ground will increase during driving, causing the internal temperature of the tire to rise and potentially damaging the tire. Every car should be equipped with a tire pressure monitoring system to keep track of the tire pressure. The specific introduction of tire pressure monitoring is as follows: Direct tire pressure monitoring: This system uses pressure sensors installed in each tire to directly measure the tire pressure. The pressure information is transmitted wirelessly from inside the tire to a central receiver module, which then displays the tire pressure data for each tire. The system will automatically alert when the tire pressure is too low or if there is a leak. Indirect tire pressure monitoring: This system works by detecting when the pressure in a tire decreases. The weight of the vehicle will cause the rolling radius of that wheel to become smaller, leading to a faster rotation speed compared to other wheels. By comparing the speed differences between tires, the system can monitor tire pressure. Indirect tire pressure monitoring systems essentially rely on calculating the rolling radius of the tires to monitor pressure.
7
1
Share

Differences between Mobil Gold and Mobil Silver?

Mobil Silver The differences between Mobil Silver and Mobil Gold are introduced as follows: Different properties: Mobil Gold is the top-tier Mobil 1 engine oil with a newer formula, belonging to the 6th generation; Mobil Silver uses the 5th generation formula with average performance, significantly inferior to Mobil Gold. Different grades: Mobil Silver has viscosity grades of 5w-30, 5w-40, and 5W-50; Mobil Gold only has one viscosity grade: 0W-40. Different quality: Mobil Gold uses Group IV PAO fully synthetic base oil, with better anti-wear protection and low-temperature performance in additive formulation compared to Mobil Silver; many grades of Mobil Silver use MSDW hydroisomerized oil, commonly known as Group III, which is no longer fully synthetic oil in the true sense.
3
2
Share

How to correctly spell the pinyin for 'car'?

Automobiles generally consist of four basic components: the engine, chassis, body, and electrical equipment. Relevant introductions are as follows: The engine is the power unit of a car: Composed of 2 major mechanisms and 5 major systems, including the crank-connecting rod mechanism, valve train, cooling system, fuel supply system, lubrication system, ignition system, and starting system. However, diesel engines have one less ignition system compared to gasoline engines. Cooling system: Generally consists of the radiator, water pump, cooling fan, thermostat, water temperature gauge, and drain switch. Automobile engines employ two cooling methods: air cooling and water cooling. Most automobile engines use water cooling. Lubrication system: The engine's lubrication system is composed of the oil pump, oil pickup, oil filter, oil passages, pressure relief valve, oil pressure gauge, pressure sensor, and dipstick.
14
3
Share

Reasons for the Discontinuation of Borgward Vehicles?

Borgward Vehicles The key reason for the discontinuation of Borgward vehicles lies in their excessively high fuel consumption, which fails to meet the requirements of the Ministry of Industry and Information Technology's "Passenger Car Fuel Consumption Limits". Relevant details are as follows: Severe Decline in Sales: Borgward vehicles faced internal and external challenges, including a lack of core technology and declining sales, making survival difficult for Borgward. Powertrain Technology: Although the discontinuation of Borgward vehicles was a misunderstanding, the shortcomings in Borgward's powertrain technology cannot be ignored. For example, the 2.0T engine in the Borgward BX7 reused the 2.0T engine from Foton Sauvana, indicating Borgward's lack of technical accumulation in this core component. Additionally, this engine was noted to be structurally highly similar to Volkswagen's EA888 engine. Borgward's 1.4T engine was also alleged to be a reverse-engineered version of the EA211, with identical parameters.
9
3
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.