How to proceed with the second test after failing the first attempt in Subject 2?

What are the dashboard indicators?

Automotive dashboard indicator lights are categorized into three types, representing indicators, warnings, and faults respectively. The first category includes the most common indicator lights encountered during normal driving, such as lighting signal lights, turn signal lights, parking lights, etc. Their function is to indicate the status of various vehicle functions. The second category consists of warning lights, which serve an alerting function, such as fuel indicator lights, door status indicator lights, seatbelt indicator lights, etc. Typically, warning lights turn off after the driver performs the corresponding action. For example, the seatbelt indicator light extinguishes once the driver fastens the seatbelt. The third category comprises fault indicator lights, which are the most critical. These include generator fault indicator lights, ABS fault indicator lights, transmission fault indicator lights, etc. Generally, these fault indicator lights rarely illuminate under normal circumstances, or they may briefly light up when starting the engine and then turn off. If a fault indicator light remains illuminated and is accompanied by a warning sound, it indicates that the vehicle has developed a fault or abnormality.

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What Causes the Sagitar Display Screen to Go Black?

The reasons for the Sagitar display screen going black include poor line contact, aging signal cables, power supply module failure, circuit design defects, and screen aging. Poor line contact: It is necessary to promptly check whether there is a loose connection in the lines. It is recommended to reconnect the loose position properly. Aging signal cables: If the power signal cable is aging, it can be replaced with a new one. Power supply module failure: Prolonged use of the screen may cause the power supply module to fail. It is advisable to have it checked or replaced at a 4S shop. Circuit design defects: If there are defects in the circuit design, this is beyond the scope of self-repair. Therefore, it is necessary to take it to a repair shop for inspection and repair or direct replacement. Screen aging: The display screen has a certain service life. When the screen ages, bad pixels may flicker. Solution: Replace it with another display screen. If the issue disappears, then a new display screen needs to be installed.

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What Causes a BMW to Shake at Speeds Between 40-70?

BMW shaking at speeds between 40-70 can be attributed to the following reasons: Severe Engine Carbon Buildup: The most common cause of car shaking is a dirty throttle body or excessive carbon deposits in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold-start injector is largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts. This makes the engine difficult to start. In such cases, the engine only starts easily once the carbon deposits have absorbed enough gasoline to reach saturation. After starting, the gasoline adsorbed on the carbon deposits is then drawn into the combustion chamber by the engine's vacuum suction, causing the air-fuel mixture to become too rich. This fluctuation between lean and rich mixtures leads to idle shaking after a cold start. The lower the temperature, the more fuel is required for a cold start. Unstable Fuel Pressure: If you have already cleaned the engine carbon deposits, cleaned the throttle body, replaced the oil seals and spark plugs, but still notice the car shaking at idle, you should check whether the fuel supply pressure and the intake pressure sensor are functioning properly. Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor can also cause the car to shake.

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Why can't the Ford Focus start when the brake fluid is too low?

Ford Focus cannot start when the brake fluid is too low for the following reasons: Brake pads wear during use. As they wear, the caliper pistons protrude outward more, requiring more brake fluid to fill the caliper. This causes the fluid level in the master cylinder reservoir to drop. When the fluid level falls below the critical value, the brake fluid becomes too low, preventing the car from starting. This situation requires checking the thickness of the brake pads to determine if they need replacement: 1. If the brake pads need replacement: After installing new pads, the fluid level will rise, the low brake pad warning will be resolved, and the car can start normally. 2. If the brake pads do not need replacement: Brake fluid can be added. According to the manufacturer's specifications, brake fluid should be replaced every two years. If the brake fluid has not been replaced, there is no need to add more. First, check the brake pads, then replace the brake fluid. The quality of the brake fluid is not related to the replacement location but depends mainly on the technician's expertise.

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Is it necessary to bleed air when replacing coolant in Geely Boyue?

When replacing coolant in a car, it is necessary to bleed air. The method involves using the small coolant reservoir where there is a thin tube. After the vehicle's operating temperature reaches 90 degrees, turn off the engine and wait for it to cool down. Then, open the cap of the small reservoir to release excess gas and top up the coolant. Method for replacing coolant: Before completely replacing the coolant, conduct a thorough inspection to check for any signs of leakage or cracks in the pipes, with a particular focus on the five-way hose. The five-way hose gets its name from having five connection points to different parts. Coolant flows through the five-way hose and is then distributed to various parts of the car to function. If there is any leakage of coolant in this section, the hose should be replaced or the connections re-secured as needed. Drain the old coolant and then flush the fluid channels with clean water. Add clean water to the coolant reservoir and continue filling it until water flows continuously through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the water flowing out of the reservoir will have a faint pink color. Continue adding clean water until the water runs clear. Remember to remove the heater hose and drain the water from the heater core. After draining for about an hour, add the new coolant through the radiator hose to allow the coolant to flow quickly into the radiator. Then, add another bottle of coolant to the reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. As some air is expelled from the cooling system, the fluid level will drop. Top up the coolant again until it reaches the "MAXT" mark on the reservoir.

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What year is the GM third-generation transmission?

GM's third-generation transmission was introduced in 2014. There are three key maintenance methods for transmissions: 1. Regular transmission inspection: It's necessary to regularly check the transmission fluid level to ensure it remains within the specified range. Refill as needed based on actual working conditions, making sure to use the same type of fluid. When changing the fluid, do it while the transmission is operating to promptly drain the old fluid and clean the system; 2. Timely inspection of connection points: Promptly identify any issues such as looseness, wear, or damage. Tighten loose connections immediately and repair or replace damaged components. Regularly check for oil leaks at shaft end seals and external joints, replacing failed seals and gaskets promptly; 3. Structural component maintenance: Pay attention to the maintenance of transmission gears, bearings, and different shafts. Regularly inspect transmission gears for wear, chipping, or incorrect meshing. Strengthen bearing inspections, focusing on excessive axial or radial clearance and spacer wear issues.

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How to proceed with the second test after failing the first attempt in Subject 2?

What are the dashboard indicators?

What Causes the Sagitar Display Screen to Go Black?

What Causes a BMW to Shake at Speeds Between 40-70?

Why can't the Ford Focus start when the brake fluid is too low?

Is it necessary to bleed air when replacing coolant in Geely Boyue?

What year is the GM third-generation transmission?

Does the Geely Boyue Need to Bleed Air When Replacing Coolant?

What is the appropriate level to fill the coolant in a car?

Why can't the trunk of a Golf be opened when it's unlocked?

How many kilometers does the Boyue need to drive before replacing the transmission oil?