Lanos speed sensor

Previously, a mechanical drive, presented in the form of a cable, was used to measure the speed of a car. However, this method has many disadvantages, the main of which is a low reliability index. Mechanical devices for measuring speed have been replaced by electrical devices. It is the electrical speed sensors that are installed in Lanos cars that will need to be covered in detail to understand how they work, where they are and when to change them.

What is a speed sensor on Lanos and what is it for

The DSA speed sensor in a vehicle is an actuator that measures the vehicle's speed. It is for this reason that they are also called velocity determinants. Modern cars are equipped with electronic devices, which is made possible by a computer electronic control unit.

The executive body transmits signals in the appropriate form to the computer, which allows the latter to determine the speed of the vehicle. The information received by the ECU is transmitted to the dashboard, allowing the driver to know at what speed he is traveling. It is necessary to know the speed of the car, not only to eliminate the possibility of speeding, but also to determine the gear in which to move.

Electric type speed sensors - what types are

All owners of Lanos cars (as well as owners of Sens and Chance cars) know that an electric speed sensor is used in the design. How it works is not known to many. The need to familiarize yourself with the principle of operation of the speed sensor arises when the speedometer needle stops showing signs of life. It should be noted right away that if the speedometer does not work, the failure of the sensor is just one of many reasons. It is not recommended to rush to buy a new speedometer for Lanos without first checking the sensor, as the reason may be a malfunction of the speedometer or damage to the wires.

Before understanding the principle of operation and the device of the electric speed sensor in Lanos, you should know that there are two types of devices:

• Induction or non-contact (does not come into contact with rotating mechanisms): such an element consists of a coil in which an electromotive force is induced. The generated electrical impulses are in the form of a wave-like sinusoid. By the frequency of pulses per unit time, the controller determines the speed of the vehicle.
  
  It should be noted that non-contact speed sensors are not only inductive, but also based on the Hall effect. The Hall effect is based on the use of semiconductors. Electrical voltage occurs when a conductor carrying direct current is placed in a magnetic field. To implement the ABS system (including Lanos), non-contact devices operating on the Hall effect are used)
• Contact - the basis of the operation of such devices is the Hall effect. The generated electrical impulses are rectangular in shape, which are fed to the computer. These pulses are created by using a slotted disk that rotates between a stationary permanent magnet and a semiconductor. There are 6 identical slots on the disk, so pulses are created. The number of pulses per 1 meter of shaft revolution - 6 pcs.
  
  One revolution of the shaft is equal to 1 meter of the car's mileage. There are 1 pulses in 6000 km, so the distance is measured. Measuring the frequency of these pulses allows you to determine the speed of the car. The pulse rate is directly proportional to the speed of the car. This is how most DCs work. Devices with not only 6 slots on the disk, but also with a different number can be used as a basis. The considered contact devices are used in almost all modern cars, including Lanos

Knowing which speed sensor is on the Lanos car, you can proceed to consider the question of what the malfunction of the element in question affects.

What affects the operation of the DS and what happens if it malfunctions

The most basic purpose of the device in question is to determine the speed of the car. To be more precise, it is with their help that the driver learns the speed with which he moves in the car in the corresponding period of time. This is the main purpose of the device, but not the only one. Let's find out what affects the health of the sensor in question.

1. about the speed of the car. This information is necessary not only to comply with traffic rules on the speed limit, but also so that the driver knows which gear to move in. Experienced drivers do not look at the speedometer when choosing a gear, while beginners choose the appropriate gear depending on the speed of the car while studying at a driving school.
2. The amount of distance travelled. It is thanks to this device that the odometer works. Odometers are mechanical or electronic and are designed to display the values ​​of the distance traveled by the car. Odometers have two scales: daily and total
3. For engine operation. How does the speed sensor affect the operation of the internal combustion engine? After all, if it malfunctions, the engine will work and it will be possible to move around by car. Depending on the speed of the car, the fuel consumption changes. The higher the speed, the higher the fuel consumption, which is understandable. After all, to increase speed, the driver presses on the accelerator pedal, opening the shock absorber. The larger the damper opening, the more fuel is injected through the injectors, which means that the flow rate increases. However, this is not all. When the car is moving downhill, the driver takes his foot off the accelerator pedal, thereby closing the throttle. BUT NEVER, the speed of the car at the same time increases due to the force of inertia. To avoid increased fuel consumption at high speed, the ECU recognizes commands from the TPS and the speed sensor. If the damper is closed when the speed is slowly increasing or decreasing, this indicates the vehicle is slipping (engine braking occurs when the gear is engaged). In order not to waste fuel during this time, the ECU sends short pulses to the injectors, allowing it to keep the engine running. When the speed drops to 20 km / h, the normal supply of fuel to the cylinders resumes, if the throttle valve remains in the closed position. The ECU recognizes commands from the TPS and the speed sensor. If the damper is closed when the speed is slowly increasing or decreasing, this indicates the vehicle is slipping (engine braking occurs when the gear is engaged). In order not to waste fuel during this time, the ECU sends short pulses to the injectors, allowing it to keep the engine running. When the speed drops to 20 km / h, the normal supply of fuel to the cylinders resumes, if the throttle valve remains in the closed position. The ECU recognizes commands from the TPS and the speed sensor. If the damper is closed when the speed is slowly increasing or decreasing, this indicates the vehicle is slipping (engine braking occurs when the gear is engaged). In order not to waste fuel during this time, the ECU sends short pulses to the injectors, allowing it to keep the engine running. When the speed drops to 20 km / h, the normal supply of fuel to the cylinders resumes, if the throttle valve remains in the closed position. In order not to waste fuel during this time, the ECU sends short pulses to the injectors, allowing it to keep the engine running. When the speed drops to 20 km / h, the normal supply of fuel to the cylinders resumes, if the throttle valve remains in the closed position. In order not to waste fuel during this time, the ECU sends short pulses to the injectors, allowing it to keep the engine running. When the speed drops to 20 km / h, the normal supply of fuel to the cylinders resumes if the throttle valve remains in the closed position

The speed sensor of a modern car plays a very important role. And although the vehicle may continue to move normally in the event of a failure, it is not recommended to drive with such a device for a long time.

It is interesting! On Lanos cars, as well as on Sens and Chance, the speedometer is often the cause of a speedometer malfunction. If this type of malfunction is detected, the cause of its occurrence should begin directly with the DS.

On the device and principle of operation of the DS on Lanos

You will need to know the device and the principle of operation of the speed sensor of your car in order to be able to repair it. However, looking ahead, it is worth noting that in the event of a device malfunction, it must be replaced. Many try to repair on their own, for example, solder contact pads, solder resistors and other semiconductor elements, but practice shows that in this case, the DC will still not last long. In order not to have to replace it again after some time, it is better to immediately buy a new DS for Lanos and install it.

Speed ​​determinants are not only of different types, but also have a distinctive design. In Chevrolet and DEU Lanos, contacts of the DS type are installed. The devices are placed in the gearbox housing and connected to the gearbox. To understand the principle of operation of the speed sensor in Lanos, let's discover its device. The photo below shows a Lanos speedometer.

An enlarged view of the DS on Lanos is shown in the photo below.

The photo shows that the part consists of the following structural elements:

1. Case: plastic, inside of which there are components
2. Shaft with permanent magnet. The magnet is driven by a shaft. The shaft is connected to a clutch connected to a gear (the part is called a gearbox). The gearbox engages with the gears of the gearbox
3. Board with a semiconductor element - Hall sensor
4. Contacts - usually there are three of them. The first contact is the power supply of the 12V sensor, the second is the signal that the ECU reads (5V), and the third is ground

Knowing the device of the Lanos DS car, you can begin to consider the principle of its operation. The general principle of operation of the devices is described above. The operation of devices in Lanos cars is different in that a permanent magnet is used instead of a plate. As a result, we get the following principle of operation:

1. The permanent magnet rotates when the car is running and there is movement
2. A rotating magnet acts on a semiconductor element. When the magnet is turned to the south or north polarity, the element is activated
3. The generated rectangular pulse is fed to the ECU
4. Depending on the frequency of rotation and the number of revolutions, not only the speed is determined, but also the mileage is “wound”

Each turn of the axle with a magnet indicates a corresponding distance, thanks to which the vehicle's mileage is determined.

Having understood the problem of the speed sensor on Lanos, you can turn to finding out the reasons why the part fails on Lanos.

Causes of speed sensor failure

In most cases, Lanos car devices fail or fail due to moisture entering the body. Everyone knows what happens to electrical semiconductor elements when exposed to moisture. However, there are other reasons why the DS fails:

• Oxidation of contacts - occurs when the tightness of the connection of the microcircuit with the sensor wires and contacts is violated
• Contact damage: after a while, the oxidized contact breaks. The contact may also be damaged if the chips with the leads are connected incorrectly.
• Violation of the integrity of the housing - as a result, the tightness is violated, and hence the failure of the part
• Damage to the board and failure of semiconductor elements

It is possible that the power or signal cable is damaged, as a result of which the device will also not work. If a part is suspected to be defective, the first thing to do is to inspect it and draw the appropriate conclusion. If the contacts along with the body are intact and there are no signs of oxidation, then it is not a fact that the part is in good order. To make sure it works, you need to test it.

How to determine the malfunction of the DS on Lanos

It is not difficult to diagnose a faulty speed sensor on Lanos, because the most important sign is the stillness of the speedometer needle. Also, the odometer with an arrow will not work and your mileage will not be counted. If the device in question malfunctions, other signs are also observed:

1. Trouble when coasting (car stops)
2. Problems at idle: unstable operation, freezing or stalling of the internal combustion engine
3. Loss of engine power
4. Engine vibration
5. Increased fuel consumption: up to 2 liters per 100 km

How and why the speed sensor affects the above indicators is described in detail above. If the device malfunctions, the Check Engine indicator also lights up and error 0024 is displayed. Therefore, it's time to find out how to check the speed detection sensor on Lanos yourself. But first, let's find out where it is.

Where is the speed sensor on the car Lanos, Sens and Chance

What is the difference between cars Lanos, Sens and Chance, many already know. Only, despite the differences in engines and gearboxes, such a detail as a speed sensor is located on all these cars in one place. This place is the gearbox housing.

It is interesting! In cars of different brands, the speed determinant can be located not only in the gearbox, but also near the wheels or other mechanisms.

The speed sensor on the Lanos is in the engine compartment on the left wing gearbox. To get to the part, you need to stick your hand from the side where the battery is located. The photo below shows where the DS is located on Lanos.

Sens cars are equipped with Melitopol-made gearboxes, but the location of the speed sensor is almost the same as that of Lanos. The photo below shows where the DS is located on the Sense.

Externally, the sensors for Lanos and Sens are different, but their principle of operation is the same. This means that the device check functions are performed in a similar way.

How to check the speed meter on Lanos and Sense

When the location of the device in question is known, you can start checking it. You will need a multimeter to check. The verification procedure is carried out in different ways:

1. Check for power on the chip. To do this, turn off the sensor chip and insert the probes into the first and third sockets. The device should show a voltage value equal to the on-board network 12V with the ignition on
2. Measure the voltage between positive terminal and signal wire. The multimeter should read 5V with the ignition on.
3. Disassemble the part and connect the microcircuit to it. Connect the copper wire to pins 0 and 10 on the back of the chip. Connect the multimeter leads to the wires. Turn on the ignition and, turning the sensor drive shaft, measure the voltage. When the sensor shaft rotates, the voltage value will change from XNUMX to XNUMX V

The DS can be removed from the vehicle and connected directly to the battery for testing. If investigations show that a part is defective, it must be replaced. When checking, you will need to know the pinout of the Lanos speed sensor. The photo below shows the wiring on the DS chip of a Lanos car.

To find out the pinout of the sensor, you need to measure the voltage between the connectors with a multimeter.

• A value of 12V will be displayed between the power supply "+" and ground
• Between the positive connector and the signal cable - from 5 to 10V
• Between ground and signal wire - 0V

After checking the condition of the sensor, you can proceed to replace it. It's not hard to do and it won't take more than 5 minutes.

How to replace the speed detection element on a Chevrolet and DEU Lanos

The process of replacing the speed sensor in Lanos is not difficult, and the biggest difficulty that may arise is the difficulty of accessing the part. To get to it, a viewing hole is not needed, since all work is done from the engine compartment. The process of replacing a DS in Lanos is carried out in the following sequence:

1. Disconnect the chip from the sensor
2. Next, we try to unscrew the sensor by hand. If this does not work, then you need to weaken the key "27". However, in most cases it is not necessary to resort to the help of a key.
3. After disassembling the device, you need to compare it with a new element. Both sensors must be the same
4. We twist the new sensor with our hands (you do not need to tighten it with a wrench) and connect the chip

When carrying out work on replacing the sensor, disconnect the terminal from the battery, which will allow you to reset the computer memory. After replacement, we check the correct operation of the speedometer. Below is a video showing the detailed process of replacing the DS.

As you can see, removing the device is not at all difficult. The exception is cases of damage to the body of the device. In this case, it may be necessary to disassemble the gearbox of the speed sensor, which is disassembled by unscrewing the screw to "10".

What DS to put on Chevrolet and Daewoo Lanos - article, catalog number and cost

The choice of speed sensors for Lanos is quite wide. Products are produced by different manufacturers, so the price range is quite wide. Consider device manufacturers that you should pay attention to when choosing:

1. GM: The original copy is one of the most reliable, but the downside is that it's quite expensive (about $20). If you can find a speed sensor from GM for Lanos, then this device is for you. Article or catalog number of the original device 42342265
2. FSO is a Polish manufacturer that is inferior in quality to the original. Part number 96604900 and costs about $10
3. ICRBI is an inexpensive version of the device that costs about $5. It has the article number 13099261

There are many other manufacturers, but you should choose solely on the quality of the part, and not on cost, so that you do not have to replace the DS every year.

The speed sensor on Lanos is responsible not only for the health of the speedometer, but also indirectly affects the operation of the engine. That is why it is not recommended to operate a car with a faulty element, because in this way it not only moves at an unknown speed, but also drives with increased fuel consumption.