Temperature sensor Kalina. We learn to independently change Dzhu in Lada Kalina, without thinking. How does the DDM check be performed

When the ignition is turned off, we disconnect the wiring bundle of the engine control system from the coolant temperature sensor.

Marking of the plots of the block "A" and "B" is applied on its building

Connecting the probe tester to the output of the pads and to the "mass" of the engine, when the ignition is turned on, we measure the voltage of the sensor input signal circuit.

The device must fix the voltage of 4.8-5.2 V.

If the voltage is inconsistent, we check the condition of the chain (cluster and closure on the "mass" between the output of the wiring harnesses and the output of the controller.

If the circuit is good - faulty controller.

Connecting the probe tester to the output of the pads and the "mass" of the engine,

we measure resistance.

With a good chain of the sensor grounding, the device must fix the resistance of less than 1 ohm.

The cause of increased resistance can be an unreliable connection in the pads connected to the sensor or to the controller.

To test the sensor, disconnect the engine harness of the engine control system from it.

Tester Measure the resistance of the sensor for two coolant temperature values \u200b\u200b- an impenetrable and heated engine.

Compare the obtained values \u200b\u200bwith the control.

If the measured resistance values \u200b\u200bdo not coincide with the control - the sensor must be replaced.

Sensor resistance values \u200b\u200bat different cooling fluid temperatures

Calina Cooling fluid temperature sensor is an ordinary thermostat. It acts as a resistor, the resistance of which changes depending on the temperature indicator. Abbreviated this element is called Dzh. It is based on a thermistor with a negative temperature coefficient. Its resistance is directly dependent on temperature.

general information

Cooling fluid temperature sensor is in each modern car. It plays an important role in the functioning of many systems.

In Kalina 2, this element is located in the thermostat housing. It seemed to be screwed into it, after which they were connected to the controller input. He, in turn, is connected to the main source of voltage by means of a resistor. Low temperature indicator provokes high resistance, increased value - reduced. This is the principle of operation of the device.

The controller monitors the temperature indicator of the coolant. This process is completely dependent on the voltage. On the cold motor it is high, and in heated form, on the contrary, low. The engine temperature affects many characteristics, the controller is responsible for the performance.

Thanks to this element, the control system performs the following functions:

• ignition (his advance or delay);
• enriches gasoline;
• fixes changes in a closed and open circuit.

The coolant temperature sensor monitors the exhaust gases. The correct setting angle of ignition guarantees its low number. In this case, the operation of the motor is considered more rational.

Gasoline enrichment. At low temperatures, the pulse is instantly fed, which enters the nozzles, making the oscillation during the engine overheating. This process provides optimal motor operation in mode. idle move.

Changes and control in a closed and open circuit. If the indicator breaks, the impulses will come from oxygen sensorBut they will not receive feedback. This will lead to a worsening of idling. The work of many car systems is broken.

In the event of problems with the performance of the element, the circuit of the circulation of antifreeze is studied. The main symptom of disorders from the cooling sensor is the rapid flow of this fluid.

Where is and when it needs to be changed

Cooling fluid sensor on Lada Kalina is screwed into a thermostat. It is easy to detect it, the place of its localization is equally for many VAZ cars. The sensor that transmits readings to the device is located nearby. From it there is a wire that requires replacement in the event of a breakdown. Detect the engine temperature sensor is easy. It is hard to reveal his breakdown.

Elements themselves are for a long time. However, when installing a poor-quality device, its service life decreases significantly. A new sensor may fail a couple of months later. It is necessary to replace it in the absence of a response from the device. It is easy to notice, the arrow simply lies and does not show any data. The second symptom is to increase fuel consumption.

Many car owners note that they have antifreeze. At the same time there is no response from the cooling fan. With overheating of the car, it does not work. At this point, it is necessary to track where antifreeze is leaving (it is necessary to investigate the entire cooling system), check the presence / absence of leaks and engage in the sensor inspection.

When deviations from the cooling element appear, it is recommended to trace how many liters of antifreeze "leaves" and how fast.

How to replace

Before replacing, you need to make sure that the problem lies in the sensor. First of all, a cooling fluid should be merged. To eliminate dangerous situations, it is necessary to disconnect the wires from the minus terminal. Naturally, it is held on rechargeable battery. The liquid merges in part, then it is poured again. It can be antifreeze or Tosol.

To facilitate replacement for Kalina 2, you must remove air filter. It does not represent any danger, eliminates exclusively for convenience. Then the plastic clamp is pressed, the connector of the harness from the sensor is disconnected. Next, the element is turned from the thermostat housing. With an ohmmeter, it is necessary to measure its resistance. If it does not match the engine temperature, it must be replaced.

The new element is installed in reverse order. After that, antifreeze replacement is carried out. The procedure is simple, you can perform it yourself. In the absence of a positive result, it is necessary to go on a hundred. Perhaps in Lada Kalina emerged additional failures.

No need to pull with the replacement of the element. Violations in its work provoke problems with the functioning of other car systems. It is worth noting that the replacement of antifreeze or antifreeze is mandatory manipulation.

Taras Kalenyuk

Reading time: 4 minutes

A.

Dot to Lada Kalina, as in any other vehiclePerforms its special functions. They are in the removal of temperature indicators with a coolant and their further transmission to the ECU.

According to this data, the computer determines - how much enriched fuel is sent to the system, which turns to specify the engine for optimal work, and also finds out the need to turn on the fans.

In the car VAZ of this model, the engine is supplied with two engines.

It is worth knowing the difference in order not to confuse them with each other.

The first of them is the antifreeze temperature sensor itself. It is located in the area of \u200b\u200bthe thermostat and its sensitive element is immersed directly in the coolant.

The second sensor is the coolant temperature pointer - is located in the head of the cylinder block and transmits data on the on-board computer.

The work of both devices is important, and their failure is able to deliver a lot of problems, especially if you do not accept the malfunctional measures on time.

Antifreeze heating detector makes it possible to monitor the following points in the engine operation:

1. activation of fans when you want to cool the motor;
2. adjustment of the ignition angle due to which the composition is optimized exhaust gasesthat allows you to minimize their destructive impact on the environment;
3. enrichment fuel mixes - Align the ratio of fuel to the air based on the engine heating level.

The device measuring the temperature of the antifreeze is a mechanism with a negative temperature coefficient.

What does it mean?

The operation of the thermistor is based on the transformation of thermal data in the resistance number, which are the less than the stronger the heating of the antifreeze.

Knowing these principles, you can personally check the efficiency of the instrument, having only a thermometer with a sufficient broad measurement scale and a universal measuring device (multimeter) at hand.

Symptoms are easy to recognize, but it is worth knowing that they do not always point to the breakdown of this particular sensor. These failures can also talk about a breakdown of the engine ventilation system, and damage to the wiring, and the flushing of contacts.

Lada Calina Temperature Sensor

Replacing temperature sensor

1. disconnect the wire block going to the sensor from the control system, after which the device itself is to unscrew using the key of the right size (on Kalina it is usually 19);
2. install the new and collect in the reverse order to the place of the appliance. It is worth considering that some detectors may have a weak thread. It is easy to compensate if you install a seal when installing the DRT, which will prevent antifreeze leakage through the gaps in the detector slot;
3. pour the coolant, connect the battery, start the engine and make sure that the repair has passed successfully, and the system works properly.

How to check the working capacity of Dzh?

In order to independently determine the health of the thermistor type measurement device, it is necessary to acquire a multimeter and a thermometer that can withstand high temperatures.

It is necessary to dismantle the instrument according to the instructions described above, then connect it to the multimeter precomposed to the module mode.

A coolant is poured into a pre-prepared container, the DPE and thermometer is placed there.

Antifreeze begins to heat up, and the owner looks at the resistance testimony on the Ommeter screen and on a thermometer, comparing data with a sign to assess the accuracy of the instrument. These instruments from different models may differ, so it is better to use the instructions attached to the available devices.

One remains unchanged - in devices with a negative coefficient, resistance indicators will fall with increasing temperature.

Outcome

Do not fear the repair of the car own. This will help to save money and time, as well as gain experience, which is an important factor.

The main thing is to strictly follow the instructions and comply with security techniques when working with similar devices.

From the end of the nineties, the domestic plant AvtoVAZ is engaged in the production of model Lada Kalina. Today, she, passing through numerous stages of modernization, reached a new round of its development. Neat and aesthetic, practical and quite dynamic, this car has conquered the hearts of a huge purchasing audience.

Now Kalina is one of the most sought-after and popular on russian market. But, of course, apart from the advantages of the model, a number of serious flaws are also observed. These include not the most best suspension, poorly coping with uneasy roads, vulnerable brake system, engine, the power of which remains much to be desired, and much more.

No smaller complaints cause such a simple and labeling device as a coolant temperature sensor. Here, the specified device most often fails, leading to other, more significant techniques. What is the coolant temperature sensor Kalina, what is its features?

The role of the cooling fluid sensor

Any engine needs a cooling system, since in the process of intensive work it is exposed to strong overheating, and the temperature inside the case sometimes reaches 250 ° C. The cooling system responds a small but very important electronic device - Cooling fluid temperature sensor, or DPET. The device gives a signal to electronic panel Control on the condition of the cooling system at a certain point.

According to the data that is highlighted on the control unit, the driver can judge the efficiency of the system and take action. The sensor is a resistor that works by increasing or decreased resistances, interconnected with temperature fluctuations. With increasing temperature, the resistance decreases, when cooled, on the contrary, becomes higher.

The device must be in the coolant. If its level drops significantly, the sensor begins to issue incorrect data, why all the chain reaction systems begin to fail. That is why it is so important to monitor the level of fluid to prevent technical problems.

The air temperature controller, as a rule, is located on the thermostat block, in rare cases it can be noticed on the head of the motor cylinder block. In the cars of the new sample, even two measuring devices for reliability occurs. The first fulfills the task of a responsible controller. electronic systemAnd the second is responsible for the efficient operation of the fan.

Principle of operation of Dzhto

Inside the engine, complex temperature fluctuations and voltage processes occur. When the temperature becomes below admissible, a rich mixture is required for normalization. If the scale rises above a certain tag, then, on the contrary, the enriched mixture can lead to disastrous consequences for the engine. With the normal functioning of Dzhop, all these data come to the dashboard in an ideal format, becoming excellent prompts of the wishes of the car addressed to the driver.

But in the case of a break, even the most microscopic, in the sensor wiring, these measurements are already produced in the violated format. As a result, when it is not necessary, the system submits the enriched mixture, which flows the fuel in the motor. The power unit begins to work in high mode for wear, the result of such a work is the high percentage of harmful exhausts into the atmosphere.

The other situation happens when a short circuit occurs in the sensor, then such a pulse is perceived electronic block Management as a clear overheating inside power aggregate. Tuned in such a way to prevent overheating, the control system supplies a depleted mixture. Since there is really no overheating, the depleted mixture leads to ineffective engine operation, which is why it loses its power and stability. Outcome - breakdowns requiring repair.

Detection of the sensor fault and its replacement

Design Cooling System Lada Kalina
1 - expansion tank; 2 - reducing radiator hose; 3 - bulk hose; 4 - radiator; 5 - paro-discharge hose; b - driving radiator hose; 7 - electric fan; 8 - electrical fan housing; 9 - coolant temperature sensor; 10 is the coolant temperature pointer sensor; 11 - throttle assembly; 12 - coolant pump pipe bracket; 13 - coolant pump; 14 - coolant pump tube; 15 - Heater Radiator Supply Hose; 16 - reducing heater radiator hose; 17 - exhaust pipe; 18 - coolant pump pipe hose; 19 - Thermostat Case

To determine that the evaporator temperature sensor is in a faulty state, it should be done to start visual inspection, careful and consistent. Special attention It is necessary to give wires and their connections, since microscopic cliffs are most often happening. In addition, the deposits of rust, even in meager doses, can lead to breakage.

Cracks in the housing cause refrigeration fluid leakage, which is also bad. So, if there is dubious information about the cooling fluid level, if the motor begins to produce unnecessary failures, and after and it stalls at all, if the motor suddenly starts to lose power and handling, in 80 percent of cases it can talk about Sensor faults.

Therefore, to determine the localization of the breakdown, it is worth checking out this device first. In addition to these symptoms that the cooling fluid temperature sensor needs to be repaired, the following signs are signaling:

• at idle, the engine is unstable, the start is difficult, stopping;
• fuel consumption suddenly increases;
• the control lamp warns overheating.

Understand whether the interior temperature sensor is possible by checking the resistance and voltage. To diagnose, it is necessary to remove the sensor, then omit it into the water container, the temperature of which alternately change. In warm water, the voltage should vary from 3 to 1 W for 4-5 minutes. In addition to monitoring the sensor, other systems should be carefully checked.

Radiator and level of content of coolant. It is very important here to know that the radiator lid can be removed only when the motor has cooled, otherwise it is easy to get a serious burn. The tightness of the lid should also be checked. If the cover is notching, the air falls into the system, which leads to overheating of the motor and, as a result, distorted sensor data.

It is important to check the chemical composition of the coolant. The manufacturer in equal proportions combines water and antifreeze, but if something (as a rule, water) becomes greater, then there will be no so much benefit from the liquid as harm. Do not pour outdated liquid, which for more than 3 years, it loses its technical properties and becomes useless.

And last - it is necessary to monitor the fan's workability, which also depends on a lot. To dismantle the device for Doli viburnum, you must first disconnect the negative wire from the battery. Next, it is necessary to merge the entire coolant liquid. The third stage becomes disconnecting the wiring from the sensor. Now armed with a key to 21 and unscrew the device.

Installed new in the reverse order. Do not forget at the end of the job to fill the radiator with antifreeze. The temperature sensor changes only as a last resort, when it is just known that it is faulty. The verification of the device was stated in the previous paragraph. But sometimes the sensor changes with a functional state. When is it done? If you need to complete the bulkhead of the viburnum motor or its replacement.

Such changes are primarily reflected on the operation of the sensor, so in order to avoid possible difficulties and troubles, it is better to replace the device to a new one. In case of emergency overheating of the power unit and with the sensor, malfunctions occur. Therefore, repairing repair, do not forget to pay attention to the sensor.

Lada Kalina is one of the popular cars of the domestic auto industry. These cars are equipped with a variety of different controllers and sensors that monitor the state of the main nodes and aggregates. One of these devices is the car of Lada Kalina, we will talk about it to appoint and replace this article.

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Sensor General Information

Dzhto Lada Kalina can not be confused with an external outdoor air temperature sensor or salon temperature. To begin with, we suggest you familiarize yourself with the main information about this device. In total, two regulators are used in the viburnum - one of them goes to the control unit, and the second is on the dashboard, where the temperature of the power unit is derived.

Location

The controller in the fabric is mounted into the thermostat. It is not so difficult to find this device, since the place of its installation is identical for many VAZ models. As for the controller, which displays information on the control panel, then it is located nearby.

Purpose and principle of work

The purpose of the regulator is to monitor the temperature of the engine or cooling material. It should be noted that this procedure depends on the voltage - on the height of the DVS it is lower, and on the cold - high. The temperature of the motor affects many features of his work. Also, the Ecu on Dzuch sees when the cooling system fan is needed.

Thanks to the operation of the coolant temperature sensor, the ECM performs such functions:

1. Ignition angle setting. DZH produces monitoring of exhaust gases, and thanks to proper setting Ignition Their quantity will be lower. This, in turn, allows to ensure a more rational operation of the power unit.
2. Fuel enrichment. If the temperature is too low, a signal will be received on the nozzle, which prevents possible fluctuations when driving a motor. Such a procedure allows to ensure its normal operation at idle.
3. Dzhd fixes all changes occurring in an open and closed circuit. When the regulator fails, the signals will be transmitted from the lambda probe, however, they will not receive feedback, which, in turn, will contribute to deterioration idling (Author video about the diagnostics of the device - channel device and repair of the car).

As for the principle of operation, complex processes always occur inside the power unit. If the engine is cold, it will take the enriched fuel mixture for it, and if the engine is overheated, then the large volume of this mixture can lead to its breakdown. If the DPE works in normal mode, then all information regarding the engine temperature will be displayed on the dashboard. If an open circuit occurs in the electrocippi, it will violate the indicators, respectively, the system can serve the enriched mixture when it is not necessary. In turn, it leads to increased flow Gasoline.

As a result, the wear of the engine components increases, which leads to an increase in emissions into the environment. If a closure occurs in the electrocuprup, then the computer will perceive the signals from Dzhto as an overheating of the motor, respectively, it will begin to serve a depleted mixture. And if there is no overheating on the fact, this can lead to a less efficient operation of the power unit, as a result of which its stability and power decreases.

Replacement Guide

How is the sensor replacement and in what cases is required to replace the DRP? To begin with, we will tell about faults (by the author of the video - Vladimir Tupiotilov).

In what cases should the regulator be changed?

If you doubt the performance of the regulator, you first need to make it visual diagnostics. On the device, there should be traces of damage, cracks, corrosion, the wiring must be integer.

The main symptoms of the inoperability of the regulator:

• failures in the operation of the power unit, especially at idle;
• reduced engine power;
• difficult launch and arbitrary motor stop;
• increase fuel consumption;
• on the dashboard The arrow of the sensor speaks of the overheating of the engine, although it is not in fact.

It is advisable to replace on the cooled engine to avoid burns!

Stages

No specific tools for replacement you need. Prepare only a screwdriver, ratchet, as well as a head with an extension.

In order for the replacement of the DPE did not cause difficulties, you must first unscrew the clamp of the intake line, which comes from the air filter element to the choke:

1. Pull out the highway and move it a little to the side so that it does not interfere, so you can get more convenient access to the regulator. Disconnect the battery as you have to turn off the power of the controller, and all the work related to the intervention to the on-board network should be made when the battery is turned off.
2. So, DPE in front of you. Now it is necessary to disconnect the power connector, at this stage there should be no problems, since the plug itself is attached similarly to other sensors. To disable you, you just need to raise up the mount and pull over the connector.
3. Next, using an extension with a deep head, you need to unscrew the controller. If at this stage you will interfere with the nozzle, try to push it towards one hand even more, and then install the head at this moment. Next, turn off the regulator itself ratchet.
4. When the thread loosen, the device can be unscrewed and completely removed. Having done this, you can replace the regulator to a new one, all further assembly steps are made in reverse sequence. As you can see, in general, the replacement procedure is not particularly difficult, so it is possible to change the regulator at home. You will need no more than 20 minutes to replace, especially since you can save money.

Video "Visual allowance for replacing DPET by car VAZ"

On the video below, the instruction on the replacement of DPET on the VAZ 2115 is given, for viburnum this instruction will be identical (author of the movie - Vasily Kalugin).