Which fault lights are on the most dangerous, and which fault lights are on the problem

1. Oil alarm light.

This indicator light, which looks like Aladdin's magic lamp, is the engine oil alarm light! If the light is on, it means that the oil stock and pressure are lower than the standard value, and if you continue to drive, the engine will lose lubrication and cause serious wear. If the faulty light does not disappear after adding oil, do not start the vehicle and contact the rescue as soon as possible.

02. Thermometer: water temperature alarm.

The water temperature indicator is used to show the temperature of the coolant in the vehicle's engine. Some models that do not have a water temperature gauge (such as the Great Wall small car series) will display the coolant temperature in the color of the indicator: blue means the water temperature is too low, off means the water temperature is normal, and red means the water temperature is too high.

The engine is most afraid of lack of oil, lack of water, water temperature warning light and oil alarm risk coefficient is the same, if the temperature is too high to continue to drive will lead to high engine temperature, resulting in cylinder deformation, the owner can add coolant or pure water emergency.

03. Irregular squares: engine fault lights.

The engine fault light is used to show the working status of the engine, and its color is mainly yellow. Twist the key, the indicator light will also light up when the vehicle performs self-inspection, and the indicator light will automatically turn off when the car is started. If the indicator light is solid after starting the car, it means that there may be a fault in the engine system.

04. Exclamation mark: brake system fault lamp.

If the brake system fault light is on, first make sure that the handbrake is fully released. If the handbrake is still bright when you release it, check that the brake fluid level is normal or that the brake pads are too thin. At this time, if the braking force is not weakened, you can drive cautiously and go to the nearest repair shop for maintenance as soon as possible, after all, the quality of the brakes is most directly related to people's driving safety.

05. Big circle and small circle: Steering assistant alarm light.

The power steering warning light is illuminated to indicate that the power steering system has failed, and the power steering may be weakened or completely disappeared, which can be very dangerous at any time while driving.

06. The front door cover is not closed.

It is very dangerous to not close the door or front hood completely while driving, and at any moment the door will open or the hood will hit the front windshield due to the wind speed.

07. Parenthesis exclamation mark: tire pressure alarm.

When the alarm light is on, it may be that the tire pressure is insufficient or it is damaged. We should get out of the car immediately and check if the tire is normal or punctured and causing a flat air.

08. Large square: battery alarm light.

The color of the battery indicator is usually yellow. Twist the key, and the vehicle will automatically turn off after self-inspection. However, if the indicator light is always on, it means that there is a problem with the battery and the vehicle will not start after it is depleted.

09. ABS alarm light.

The color of the ABS indicator is mainly yellow. If the indicator light does not light up during the car self-test, or the indicator light is always on after starting the car, it means that the ABS system may be faulty.

10. Body electronic stability control system.

ABS lights, turn signals are the most dangerous.

Possible causes of car engine failure lights on:

1, the vehicle fault light is generally caused by the fuel emission system, you start and extinguish the vehicle when the fault light is on, and after starting the vehicle three times, you observe whether the fault light is still lit, or it is still lit, you need to go to the store in time to check the fault code, to see whether it is an engine problem or a sensor failure, or it may be an occasional failure can not be checked in time.

2. When the computer receives the parameters of the oxygen sensor, the exhaust emissions seriously exceed the national legal standards, and the internal program of the computer cannot be corrected to the standard range, at this time, the engine control computer will issue a warning light (yellow pollution lamp on) through the instrument to remind the owner to the maintenance station to check the cause of the engine pollution emission lamp.

The automobile engine is the machine that provides power for the car, and it is the heart of the car, which affects the power, economy and environmental protection of the car. According to different power**, automobile engines can be divided into diesel engines, gasoline engines, electric vehicle motors, and hybrids.

Common gasoline engines and diesel engines belong to reciprocating piston internal combustion engines, which convert the chemical energy of fuel into mechanical energy of piston movement and output power to the outside world. The gasoline engine has high speed, small quality, low noise, easy starting, and low manufacturing cost; The diesel engine has a large compression ratio, high thermal efficiency, and better economic performance and emission performance than the gasoline engine.

In addition to the use of gasoline and diesel, vehicles that use other new energy sources are called new energy vehicles, including pure electric vehicles, hybrid electric vehicles, fuel cell vehicles, gas vehicles, bioethanol biodiesel vehicles, and hydrogen-powered vehicles. Most of the new energy vehicles on sale in the Chinese market are hybrid vehicles, but at present, pure electric vehicles have been taken as the main direction.

There are many, there are ABS faulty lamps and oil and battery ones. Then there's the engine fault light.

Basically, these are the important ones, as well as the light for the brakes.

Needs attention. As for the reasons, there are many aspects. It needs to cooperate with a professional fault diagnostic instrument.

The indicators distributed in the instrument cluster can be broadly divided into three categories:

The first type of daily indicator lights, is the most common when driving turn signals, light indicators, seat belt indicators, cruise indicators, parking indicators, etc. belong to this category, they only play a role in the prompting of the working status of each function of the vehicle, usually very common, so everyone is very familiar, here will not say more.

The second type of indicator with warning function, such as fuel stock indicator, window cleaning fluid level indicator, this type of indicator lights warns the owner as long as the corresponding fluid can be eliminated as soon as possible.

The third type is also the main fault indicator light to be introduced, including engine (exhaust system) fault lamp, oil system fault lamp, battery and power generation system fault lamp, etc., these fault indicator lights are rarely lit, but as long as it is lit, it means that the vehicle has been faulty or abnormal, small will affect driving safety, large may damage the vehicle, need to be repaired immediately, or contact the vehicle's brand 4S shop for rescue.

The main reasons why the fault light is on are:

1. The combustion state is not good.

2. Engine knocking.

3. The fuel quality is not good.

4. The inside of the engine cylinder is not clean and there is deposited carbon.

5. The computer cannot obtain the engine data.

Engine Failure Warning Light The engine failure light is used to show the working status of the engine. Twist the key to the "on" gear when starting, the car will perform a self-test, the indicator light will also light up, and the indicator light will automatically turn off when the car is started.

The reasons for the fault light on: 1. The sensor is damaged, the contact is poor or the signal is interrupted; 2. Poor engine maintenance; 3. The quality of fuel and oil is not good; 4. The combustion of the mixture is insufficient; 5. Spark plug failure, ignition coil failure; 6. The fuel pump is faulty and the oil circuit is blocked; 7. Blockage of air conditioner filter 1. Sensor problem; The sensors mentioned here include water temperature, crankshaft position, air flow, inlet air temperature, oxygen sensor, etc., when these sensors are damaged, poor contact or signal interruption, the engine data is obtained, and the engine fault light will be on. 2. Poor maintenance of the engine is the most common cause of engine failure.

We know that the vehicle has a certain maintenance cycle, if the owner does not maintain on time, coupled with bad driving habits, then it will increase the burden of engine operation, and finally can only remind you through the fault light to care about your car 3, oil quality problems; The oil quality here includes fuel and engine oil, we know that the fuel filled by the car is generally marked, and the engine oil is also semi-synthetic and fully synthetic, the manufacturer will generally recommend the owner to use which grade of fuel, which type of engine oil, if the owner does not add as required, it will cause wear and tear of the engine in the long run, and the fault light is not to blame. Mixed Qi Hunger Zen burns poorly; The failure of the spark plug, ignition coil, fuel pump, and oil circuit blockage of the engine will cause poor combustion of the engine mixture. Poor combustion of the mixture is caused by the problem of engine carbon deposition or knocking, and these will eventually be detected by the oxygen sensor of the engine rotten dust, and after reporting to the ECU, the fault light will naturally be lit to warn of the air intake problem; When the engine burns, it needs to take intake, the air filter element is very important in this process, if the air filter element of the car is not clean, it will affect the air intake of the car if it is not cleaned regularly, and it will be blocked for a long time, and if it is serious, it will cause the engine failure light to turn on.

pressurization issues; Intake booster lines and turbochargers can also cause engine failure lights to illuminate. The most common of these is turbocharger damage, while the vehicle can also experience symptoms such as oil leakage, high oil consumption, loss of power, metal noise, and blue or black smoke from the exhaust pipe. 7. Exhaust problems; Rear oxygen sensing front noiser, three-way catalytic converter, exhaust camshaft and bearing.

The most common of these is a failure of the three-way catalytic converter that causes the engine failure light to illuminate. The use of leaded gasoline, the use of leaded or silicon lubricating additives, the three-way catalytic being bumped, and the failure of the engine fuel supply system are some of the factors that can easily cause the failure of the three-way catalytic converter. anti-theft system; If the car's electronic anti-theft system fails, the Chinese market will be highly valued and the Chinese market will be regarded as its global.

Or the anti-theft controller does not match the engine electronic controller, and the anti-theft system will also cause the engine to not work properly, and the engine fault light will be lit at the same time.

The main reasons why the car fault light is on are:

Hope, thank you!

Hello, the fault light is on, you need to go to the 4S shop to check.

The fault light is on, don't think too much, go directly to the 4S shop to check and repair to avoid safety accidents.

The car engine fault light should not be on when it is normal, but it should be on during self-inspection. If the car engine is normal and the fault light does not light up during the self-test, it should be that the fault light is damaged or the fuse is burned out.

Common faults and troubleshooting methods of automobile engines.

When the automobile engine is not working properly, and the self-diagnosis system does not have a fault code output, it is especially necessary to rely on the operator's inspection and judgment to determine the nature of the fault and the location of the fault. The author now summarizes the common obstacles of automobile engines as follows:

The engine does not start.

1) Fault phenomenon: turn on the ignition switch, turn the ignition switch to the starting position, and the engine cannot start.

2) Possible causes of failure:

a.The engine cannot rotate or rotates too slowly due to the failure of the starting system: the battery is not enough to store electricity, the electrode pile clamp is loose or the electrode pile is seriously oxidized; The main fuse of the circuit is broken; Ignition switch failure; starter failure; The starting line is broken or the line connector is in poor contact.

b.Ignition system failure: The ignition coil works poorly, resulting in weak or no high-voltage sparks; ignition failure; The ignition time is incorrect.

c.Fuel injection system failure: There is no fuel in the tank; The fuel pump is not working or the pump oil pressure is too low; Fuel line leakage and deformation; The disconnect relay is disconnected; The fuel pressure regulator is not working well; The fuel filter is too dirty.

d.Air intake system failure: Failure of the idle control valve or its control line; Idle control valve air pipe rupture or joint leakage; The air flow meter is faulty. Fault.

Dear Kiss I am happy to serve you If the fault light is on, it means that there is a problem with the vehicle, and it is recommended to investigate the cause of the fault in time. The reasons and solutions for the car fault indicator light are as follows: 1. Engine fault light:

When the engine fault light is on, the reason may be poor quality of fuel, insufficient combustion, excessive accumulation of pollutants inside the engine, etc. In mild cases, the owner can first check the water temperature gauge and oil pressure alarm, if there is no problem, you can continue to drive, but you must go to a special repair shop afterwards to check and troubleshoot. If it is not solved in time, the exhaust gas of the car will increase, increase fuel consumption, wear the engine, and affect the quality of driving.

2. Brake system fault light: The abnormal performance of the braking system is poor braking or brake failure. The reason is generally that the brake pads are seriously worn, the ABS is faulty, and the brake fluid does not meet the regulations.

If the brake pads are worn, just replace them; Insufficient brake fluid will affect the performance of the brakes and need to be checked immediately at the workshop. If the accident occurs suddenly, the owner can first check whether the brake fluid level is normal, and observe the brake fluid level sensor and instrument cluster. 3. Water temperature warning light:

The water temperature alarm indicator is generally on, usually because the engine water temperature is too high, or there is a lack of coolant, or the thermostat is failing, or the water temperature sensor is damaged. When the engine water temperature is too high, do not rush to turn the engine off, the owner should slow down and stop, and then try to cool down. If you are short of coolant, wait for the temperature of the tank to drop before adding coolant.

When the thermostat fails and the water temperature sensor is damaged, it should be replaced in time. The owner can also check whether there is any water leakage in the water tank and whether the temperature of the water pipe is normal; Observe whether the fan is operating normally to avoid smooth heat dissipation at high temperatures. 4. ABS anti-lock braking system indicator:

When the ABS fault light is on, the anti-lock system is faulty. The owner does not have to panic and can still continue driving. The ABS anti-lock braking system is used to prevent the wheels from locking, which can reduce the risk of driving to a certain extent.

It can also extend the life of the wheels when the car brakes, improve the braking efficiency, and protect the safety of the owner. Therefore, when it breaks down, the owner must send it to a professional repair shop for repair in time, and don't regret it when the accident happens. 5. If the EPS is off the indicator light and the EPS light of the car is on, it means that the electronic power steering system has failed, and it is generally necessary to interpret the fault code and repair it to eliminate it.

It may be because of the problem of the line that causes the EPS light to be on, check the line first, and it is best to go to the repair shop or 4S shop for testing. 6. If the wiper is broken or there is no glass of water, in order not to affect the normal use of the wiper in Dust Town, it should be inspected as soon as possible and sent to the repair shop for maintenance. 7. If the gearbox fails, it may be that the gearbox leaks, the gearbox cannot switch gears, the gearbox has no power when it slips and accelerates, the high temperature inside the gearbox, the vehicle has a high speed when driving, the gearbox has an abnormal sound when it is used, and the vehicle idles when it is hooked into the gear, and the car mainly drives to the maintenance shop to overhaul the gearbox.