Is it normal for a car to have zero leakage value? Is it normal to detect car leakage indicator 0 19

Abnormal, after the vehicle is locked, the anti-theft system will consume a small part of the current.

The normal range for a car's power leakage is around 45 milliamps. Some cars have dark currents, which fall under the category of normal leakage. This is because some electrical equipment must be powered for a long time in order to maintain the memory function of data, such as stereos, air conditioners, etc.

Some anti-theft sensors require a long-term power supply to guarantee round-the-clock surveillance.

Automobile leakage refers to the phenomenon that the battery is gradually discharged when the car is stopped, which affects the start of the car or the abnormal operation of electrical appliances. There are generally the following reasons for automobile leakage:1

The short circuit or oxidation of the battery plates leads to self-discharge and power loss, which is the power loss caused by the internal discharge of the battery. This reason involves an important indicator of the bad battery itself.

2.Due to the leakage of electronic components and circuits such as automotive appliances, wiring harnesses, sensors, controllers, actuators, etc., the battery loses power. This cause is called external discharge of the battery, and this leakage is a latent circuit fault, a leakage fault that must be investigated.

3.When the car is not working, that is, after unplugging the key and locking the car, the battery must maintain a small amount of external discharge current to ensure the normal warning current of security anti-theft equipment such as anti-theft devices, which is called "dark current", and the discharge of this part of the dark current is actually an external discharge that belongs to the normal category.

This situation means that your vehicle is leaking electricity and needs to be serviced, which may affect the service life of the battery.

The normal value of car leakage is generally around 40mA. Of course, this still depends on the model, and it is also possible for some high-end cars to reach 80mA. Then, the reason why the car has a dark current is because there are some electrical appliances in the car, and the normal range of the car's power leakage is about 45 milliamperes.

Some cars have dark currents, which fall under the category of normal leakage. This is because some electrical equipment has the function of maintaining the memory of data, and must be powered for a long time, such as audio and air conditioning.

<> is integrated with a leakage sensor in the high-voltage electronic control system, which mainly monitors the insulation resistance between the negative bus connected to the output of the power battery and the body chassis.

First of all, there will be a momentary larger current, which is the car anti-theft system is working, and then it will slowly decrease, and it will not decrease after stabilizing at a certain value. This is the time for the ammeter.

The reading is the magnitude of the dark current, that is, the leakage current.

Car batteries. There is also a charging method, for slow charging, the charging time is 10-15 hours, those deep loss batteries must be charged slowly, otherwise the charging time is not enough, the charging amount is insufficient, so it directly affects the driving performance of the car. If you do not change it after unplugging it, plug it back in the fuse or relay, indicating that the leakage is not caused by damage to this component.

If a fuse is unplugged or the quiescent current of the relay becomes normal, then we look for the circuit related to the fuse and find the leakage.

Use the elimination method: generally there is a main fuse position on the battery, find the shunt fuse, unplug it to detect the current, determine which way the leakage is 4, and then check it gradually down 5, pay attention: even if all the equipment on the car is not opened, automatic control.

The general battery is 65ah, and the 65ah battery means that it can be discharged for 65 hours at 1A per hour. We can calculate how many days it will be leaked according to this leakage. Total capacity Leakage = Leakage suspect hours are not normal.

Household leakage switches.

The action current of the leakage current is 30mA, and the current below 30mA can be voluntarily gotten rid of by the human body without constituting a fatal situation, so the household leakage protector.

The rated leakage action current is generally 30mA.

Around 40 milliamps, this is a normal value that neither the danger occurs nor does it affect the speed at which the car runs.

The leakage of the car is less than 40mA for ordinary cars and less than 80mA for high-end cars, and there is leakage in general cars, which is a normal phenomenon.

The leakage current is normal when it is about 40 mA, and it is not easy to bring great harm to the human body.

Generally, it is normal to be around 40mA, if the current exceeds this value, you must go to repair the car.

When the vehicle is turned off and idling, use the multimeter current gear (24V) to put one end on the single pole of the battery, and one head to the exposed metal of the vehicle without oil ridge slippery paint, and look at the ammeter to make the laughing needle change.

CarsLeakage currentThe normal range is around 45 milliamps. Some cars have dark currents, which fall under the category of normal leakage.

The reason why there is dark current is because some electrical equipment must be supplied with power for a long time in order to maintain the memory function of data, such as audio, air conditioning, etc.

There are also anti-theft sensors that require long-term power supply to ensure round-the-clock surveillance. The more advanced the car, with the increase of the car's electrical equipment and the increase of the battery capacity, the dark current will also increase at the same time.

The specific measurement steps of the universal meter to check the leakage of the car are as follows:

1. Turn off the ignition switch, all possible electrical equipment, and all car doors.

2. Remote control lock (smart vehicle.

Stay the smart card more than 3 meters away from the car) and wait for 5-10 minutes for the vehicle to go to sleep.

3. Loosen the screws of the negative pole pile of the battery.

4. Convert the digital multimeter to the current gear (note: the meter cavity pen should be moved to the corresponding jack).

5. Red table pen connection (on the negative electrode pile clip), black table pen connection (negative electrode pile head-bumping).

6. Slowly move the negative pole pile clip and the red table pen up together, and completely separate from the pole pile head (at this time, the state is that the black table pen is set in the clip).

7. Observe the series ammeter and sell it.

The current value, generally speaking, is not an intelligent vehicle, and a smart vehicle is left or right. If it exceeds too much or even doubles, it is an anomaly.

The normal value of car leakage is 45 milliampere, and the solution is:

Close the ignition, electrical equipment, all doors;

Remote locking allows the vehicle to go to sleep;

Unscrew the screws of the negative electrode pile and replace the leakage line.

The function of the battery is: 1. When starting the engine, it provides strength for the guessing bridge starter.

Large starting current; 2. Assist generators to supply power to electrical equipment; 3. When the voltage at the generator end is higher than that of the battery, the battery is charged.

The normal lock wheel of the car is determined to enter the sleep mode, and there were fewer vehicle modules in the past, generally around 50mA. Nowadays, due to the improvement of vehicle functions, there are many integrated modules, especially some high-end cars to reach 80mA to 100mA is also possible. So, the reason why the car has a dark current is because there are some electrical appliances in the car, and the wax shed needs to be powered all the time, such as immobilizers, door and window controllers, etc.

The quiescent current is generally 30mA), and no more than 50mA is normal.

Check the leakage operation procedure.

Check whether the battery voltage and power generation are normal and whether the battery pile head is seriously rusted, many car owners think that the leakage result is a battery problem, or a generator problem;

Remove the negative pole of the battery and place the multimeter.

Dial to the maximum current gear, connect the red watch pen to the negative line, and connect the black watch pen to the battery pile head and fix it;

Turn off all electrical appliances inside and outside the car, lock the door, observe the current size, adjust to the appropriate gear, and record;

The quiescent current is generally 30mA), refer to the maintenance manual, not more than 50mA;

If the quiescent current is too large (as shown in the figure above), we can check by pulling the fuses and relays, that is, unplugging the fuses one by one to observe the size of the quiescent current;

Hello, the vehicle after going into hibernation, in the following are normal. Hope! Thank you!

Normal, no more than normal.

Summary. Abnormal. Automobile leakage is a phenomenon of unstable current in the automotive electrical system, which may lead to the failure of the automotive electrical system and affect the normal operation of the vehicle.

The normal value of automobile leakage is generally between, which is obviously beyond the normal range, indicating that there is a problem in the electrical system of the car, and it should be inspected and repaired in time. High leakage in the car may lead to a short circuit in the electrical system of the car and even cause a fire, therefore, it should be inspected and repaired in time to ensure the safe operation of the car.

Abnormal. Automobile leakage is a phenomenon of unstable current in the electrical system of the car, which may lead to the failure of the electric belt turbulent system of the car and affect the normal operation of the car. The normal value of automobile leakage is generally between, which is obviously beyond the normal range, indicating that there is a problem in the electrical system of the car, and it should be inspected and repaired in time.

High leakage of the car may lead to a short circuit in the electrical system of the car, and even cause a fire.

Can you elaborate on that a little bit more?

Leakage is abnormal, and it may be caused by poor contact of the car circuit or damage to the car circuit. Reasons:1

Poor contact of automotive circuits: Poor contact of automotive circuits can lead to current leakage, which can lead to leakage of electricity. 2.

Damage to automotive circuits: Damage to automotive circuits can cause current to leak out, resulting in leakage current. Solution:

1.Check the contact of the car circuit: Check whether the contact of the car circuit is good, if it is bad, it should be repaired in time.

2.Replace the car circuit: If the car circuit is damaged, the new circuit should be replaced in time to avoid leakage.

Personal Tips:1Regularly inspect the car's circuits:

Regularly check the contact of the automotive circuit to ensure the normal operation of the automotive circuit. 2.Replace the car circuit regularly:

Regularly replace the vehicle circuit in the steam limb to ensure the normal operation of the car circuit and avoid leakage. Related knowledge: the automotive circuit is an important part of the car, it is responsible for the normal operation of the car's electrical system, if the car circuit is not in good contact or the car circuit is damaged, it will lead to the leakage of the car circuit, which will affect the normal operation of the car.

The car leakage that everyone talks about today can be regarded as a very conventional situation. However, if there is an abnormality in the leakage standard value, it will endanger the routine work of the battery at the same time, which will not only experience the ignition is very difficult, but also lead to the abnormal situation in the work of household appliances. So, how much is the car leakage standard worth, and is the car leakage everything normal?

The standard value of automobile leakage is generally around 40mA. Naturally, this also needs to be determined by the car series, and it is also possible for some high-end cars to do 80mA. That, often the car will appear dark current, that is, because there are some high-power electrical appliances in the car, it is necessary to ensure the recall of the data at all times for the purpose of the ruler (such as speakers, clear shouting ** air conditioner), and the anti-sensor is also necessary to supply the power system for a long time, so as to ensure the alarm function of the car.

Therefore, this can explain why the car has leakage.

But if the car leaks or even a large amount, it must be a problem, probably due to abnormal leakage in the immobilizer circuit or other circuits, at this moment we need to peel off the cocoon and clear it one by one. For example, after pulling out the fuse wire of the anti-theft device, the leakage standard value is repaired to the normal standard, which indicates that the circuit does have a common fault of iron leakage, which must be solved immediately.

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The normal current of an ordinary car is 45mA. If it exceeds this value too much, it needs to be repaired.

In fact, there are some electronic devices that continue to work even after the car loses power, such as anti-theft systems.

Therefore, there is still a weak current after the car is powered off.

If Sanshenxin riders do not drive for a long time, the battery will be out of power, so that the battery has been in a state of power loss, seriously reducing the service life of the battery.

Batteries are an important part of a car. When the engine is not started, it is the battery that supplies power to the electronic devices of the whole car. After the engine starts, it is the generator that supplies power to the vehicle's electronics.

The generator will also charge the battery.

Generally, the service life of the battery in the car is between 3-4 years, but the battery of some cars has not been used for so long, which is caused by the incorrect habit of using the punch wheel.

Batteries are consumable parts and need to be replaced regularly. During normal maintenance, technicians can check the internal resistance and voltage of the battery with professional equipment. If the internal resistance and voltage do not reach the specified value, the battery should be replaced.

If you don't use the car for a long time, it is recommended that you drive the car around when you have free time, which is good for the car and the battery.

When using the car, do not sit in the car for a long time after the engine is turned off, and use the electronic devices in the car.

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