By car Lada Priora such a device as an electric power steering, is offered in standard equipmentas a function of comfort. It is about this device that we will talk in this article. We suggest you find out what faults can face the car owner of this car and how to replace the node yourself.
[Hide]
The role of the electrocessor in the steering of VAZ 2170 prior
It is no secret that the electrical management method plays an important role in ensuring safety while driving. EUR or GUR Priora performs the option to lower the load level on the steering wheel during its turn. Key advantage The use of such an EUR device on the prior is comfort when moving as a result of improved feedback between the wheel and wheels.
The electric powerful is a more modern and improved node, which is not only easier in terms of use, but does not require the introduction of additional highways to ensure work. Moreover, this device does not take power power aggregate. The main advantage of the EUR - does not require frequent and control of the fluid, unlike GUR.
But it should be noted that such a system has several drawbacks, one of them is rather weak feedback Between the road surface and the control system. As a result, there may be difficulties when driving around the snow. Unlike prior, foreign cars are equipped with additional mechanisms and blocks of blocking and stabilization, so the method of managing EUR in the domestic version is less reliable. In addition, in practice, a faulty electric powerful with bad craving - This is a fairly common phenomenon.
Common malfunctions and ways to eliminate them
With breakdowns of devices, many recovery facing, in particular, we are talking about the malfunction of the control unit. If the system control unit works incorrectly or failed, on the display on-board computer A corresponding error will appear. Deciphering it, it can be understood that the computer reports to refuse to connect the EUR, which in most cases indicates the availability of problems in the soldering. In particular, we are talking about the place of connection of the amplifier board with the controller.
This fault is solved either by replacing the system at the dealer if the car is on warranty or by repairing. If you do not have experience in chip tuning or working with electronic devices, then the solution to such a malfunction must be entrusted to professionals. Of course, in order to accurately make a "diagnosis", you will need to conduct computer diagnostics.
It often happens such that there are failures in the speed of the speed sensor, which again contributes to the appearance of an on-board computer error. This type of malfunction can be solved by reprogramming the device or replacing the wires in those places where the regulator is connected to the controller. If the regulator itself is not working, then it will have to be replaced (by the author of the video - Alexey A-SKORP).
Too low voltage in the onboard network of the car is also a common problem. IN this case It is primarily necessary to pay attention to the diagnosis of generator device or wiring. Use the tester to check. In any case, if malfunctions were detected in the system, it is necessary to repair the steering rack with their own hands. Operation of a car with non-working EUR is not allowed to completely eliminate the problem.
How to determine mechanical damage to EUR and steering mechanisms?
Mechanical diagnostics are carried out if not normal, but at the same time the on-board computer does not produce errors. To check mechanical damage, it is necessary to maximize the steering wheel to the left and right, the motor should be started. It should be noted that when turning the steering wheel, the vehicle should be in one place.
In the event that you have noticed that when you rotate the steering wheel, you need to make more effort than usual, this may indicate the failure of the parts or components of the amplifier. But it can also say that the breakdown of other elements of the steering system (video about the diagnosis of the power steering is presented below, the author of the video is Gosha Vakhromeev).
To accurately reveal what caused the problem, it will be necessary to carry out more thorough diagnosis. To do this, the vehicle first needs to be driven into the lift and raise, while thoroughly checking all the elements of the hodovka on the performance. Reiki, steering traction, etc. are checked. Such a procedure can be done without any problems on any one hundred permanent, but only if you have a lift and certain diagnostic skills. There is a possibility that the repair of the EUR is not required because it is in itself efficient, but the repair of other elements is required.
To prevent the appearance of malfunctions associated with the electric powerful, it is necessary to clean the system, as well as contact nodes from time to time. To spend service maintenance Alone, you will need to remove your EUR, fully disassemble it, clean and put it back. We will tell you more about this below.
Removing and installing EUR at home
In order to remove the device from the car, you will need to prepare everything in advance that you can come in handy in the process. In particular, we are talking about screwdrivers with flat and crusades, as well as a set of span keys with end heads.
So, how is the procedure for removing and installing the electric powerful:
- First of all, you need to turn off the power on the on-board network, for this disconnect the minus terminal from the battery. Then dismantle the steering wheel, removing the plastic lining in advance and on the control panel. Disassembly of the steering wheel is carried out in accordance with the service book to the car.
- Using a cruciform screwdriver, you need to unscrew four bolts fixing the decorative lining on the steering panel.
- Having done this, you can see pads with wiring - they must be disconnected from the steering wheel switch, the contact ring is also disconnected.
- Using a wrench on 8, you need to unscrew the screw fixation of the shirl pads that pass from the ignition lock.
- Next, you must click on plastic fixation elements and disconnect the pads with wires at the top and bottom of the speaker itself.
- In the place where the electric power steering wheel is attached to the column itself, it will be necessary to disassemble the so-called plastic curtain, for this you should disconnect the clamps.
- Using the end key, you need to slightly loosen nuts that fix the node to the bottom of the column.
After performing these actions, the amplifier is removed directly - it is dismantled together with the intermediate shaft. But in order for you to more conveniently clean the node and to further make installation in the reverse order, these components are preferably disconnected in advance from each other. To do this using the key to 13 unscrew the screw fixing cardan hinges on the shaft itself. Then you will need to unscrew the two nuts of fixation over the ends, after that the steering column itself can be removed.
Then it will be necessary to remove the screw and remove the cardan from the slotted pulley of the node. To return the reverse order procedure after removing the procedure, it is desirable to verify that all labels coincide. We are talking about labels on a protective case, pulley as well. Clearing the mechanism of the contact group and other elements of the system should be carried out carefully so that all components remain intact and intact. If you pass for help from specialists in this matter, then the cleaning procedure will cost you an average of about 30-50 dollars depending on the region.
To date, each prior is equipped with an electric power steering, it concerns and basic configuration. Although the device initially went as an additional feature of comfort. The owners of this model know that the unit does not rarely encourage and breaks, but with the need for repair you can perform with your own hands. About this further in the article.
Thanks to the operation of the electric power, there is a reduction in load and effort on the steering wheel when the turn is performed. Aggregate greatly facilitates management vehicle And it does not allow at high speed to make dangerous maneuvers. The node includes such elements:
- Electromotor.
- Column.
- Steering wheel.
- Moment sensor.
- Electronic control unit.
- Power rotation mechanism.
When turning the steering wheel turns on EUR. The moment provides the electric motor present in the design of the electric power plate. The moment sensor performs the measurement of the indicator and sends it to the electronic unit. Depending on the angle of rotation, the computer calculates what power it is necessary to specify the engine. In the switch, which is located at the wheel, has a device that determines the angle of rotation. The rotation and moment sensors transmit information to the electronic unit, which determines whether the electric motor is functioning from the speed required.
At the last generations, the VAZ was mounted by a hydraulicer, which was actually the same force in all ranges of rotation. As for the electric powerful, the degree of effort here depends on the mass of factors: the rotation speed of the steering wheel and its corner, turns power plant, speed driving.
Electric power steering priory, weak link or not
Of course, the electric power steering is a very useful option, however, along with this he is a weak link of priors, since it occurs periodically.
Signs of full failure of the electric power plant VAZ
As practice shows, this unit does not have much faults, the breakage occurs in the same elements. The first thing to disassemble is a complete failure of the electric powerful. When the EUR turns off, check the screen of the on-board computer, most likely, you will see a code on it that reports faults in the unit. However, in some cases, to diagnose the disconnection of the EUR can only in practice. Follow these steps:
- Turn off the motor and turn the steering wheel several times in different directions.
- Repeat these actions, however, already when the engine is running.
- Strength when turning the steering wheel did not change? So the unit turned off completely.
Electrical power steering does not work, can you drive a car
Even with a non-working electric power, you can continue to drive, but it is not recommended to do this. The driver needs time to drop from driving with the help of EUR. Therefore, it is desirable to immediately do diagnosis.
Speed \u200b\u200bsensor failed as it is reflected on the electric power steering and speedometer, how to fix
Sometimes the speedometer and the amplifier simultaneously stop working. The reason for such a defect is the failed speed sensor. It should be understood that these three components are connected. The moment sensor transmits information to the control unit. It compares it at speed, and then determines the effort. If the reason in the speed sensor, then the repair is reduced to checking the wiring, which leads to this component. You should also check the wires that connect the sensor with the steering amplifier and the speedometer. If there are no cliffs in switching, change the sensor.
EUR does not work due to low voltage, how to fix
Low voltage in the automotive network can also entail a shutdown of the electric power. Look for malfunctions in wiring insulation. When it is damaged, short circuits will occur in the network. In addition, insulation disorders are the cause of the malfunction of the generator. To troubleshoot the malfunction, check the generator and wiring. In the moment the sensor there are many contacts that in conditions of severe contamination contribute to the disconnection of the electric powerful. In this case, it is necessary to disassemble the unit and clear the contact sensor contacts.
The car does not listen to the steering wheel that with EUR, how to do the driver
The car moves along the smooth road covering, the position of the steering wheel does not change, but suddenly the car turns to the side. Such an unpredictable behavior of EUR requires urgent diagnostics, since at the most inappropriate time the electric power steering can send the car to the oncoming lane or on the roadside. In this case, it is necessary to stop driving and turn off the amplifier.
How to turn off the eur in detail
To disable the electric power, it is necessary to remove the fuse that is responsible for supplying the voltage to the EUR. To get this fuse, follow these steps:
- Near the left leg of the driver is the cover of the mounting unit.
- Tighten the locks and fold the mounts.
- The block where the required fuse is located, is located near the expansion tank.
- Remove fuse F5 (50 A).
The cause of such behavior is faults in the EUR device. This may be a control unit, a torque sensor, mechanical damage or clogged contacts.
Where to diagnose eur faults
Preparatory work to replace EUR
Before removing the amplifier, it is necessary to dismantle a lot of details of the instrument panel: ignition lock, casing, steering wheel. When these items are removed, you can proceed to removal of the EUR.
Tools, fixtures, consumables
- Deep heads on "8" and "13".
- Chisel and hammer.
- Ratchet and extension cord (as an alternative, you can use the gate).
Replacement EUR do it yourself, step-by-step instructions
Definitely independent replacement Eur - a little time-consuming event, but not at all difficult even for a novice car enthusiast. Good luck!
In vehicle VAZ vehicles, the electric power steering wheel performs the function of providing a more lightweight vehicle management. With the help of EUR, the driver can rotate the steering wheel with one hand without any problems. What faults are characteristic of the amplifier and how to replace the EUR garage conditions - We will tell about it below.
In what cases, the repair of the steering rack, the EUR and the hydraulic agent is disassembled and the repair of the amplifier connection scheme, what functions do the moment sensor performs?
To begin with, let's consider the main malfunctions of the system, why it does not work and their elimination methods:
- Incorrect work or breakdown of the control unit is one of the most difficult reasons for the inoperability of the EUR and GUR in the Lade Prior. With such a problem, an appropriate error message will be displayed on the on-board computer screen. If you decrypt it, you will find out that the computer recorded the inoperability of the control module. Such problems are usually associated with malfunctions in the soldering.
Most likely, the reason is the absence of a connection or a bad contact of the amplifier circuit with the controller. Such a malfunction is solved by the repair method, that is, the repairs, or replacement, if we are talking about the guarantee. You can learn more accurately on computer diagnostics.
Methods for determining mechanical damage to EUR and steering mechanisms
Checking mechanical damage is made only when the EUR as a whole functions incorrectly, but there are no errors on the on-board computer. To diagnose mechanical breakdowns, turn the steering wheel in different directions until it stops when the motor is running. Of course, the car must be in one place. If you have to apply much more effort when rotating the steering wheel than always, this indicates a malfunction in the operation of the system and breakage one of the components. The same problem may indicate the failure of other components of the steering system.
For more accurate troubleshooting, careful performance test should be carried out. You will need to drive your liberty to the flight, a pit or a lift, after which you carefully make the diagnosis of all components of the chassis. You need to check the rails, steering thrusts and other components, because there is a chance that the amplifier itself is working, and the signs of malfunction are associated with other malfunctions. To maintain an electric power plant at home you will have to fully disassemble the system, clean its components and collect back.
Scheme of pinout and designations of EUR contacts
The procedure for dismantling and installing a new electric power can be performed with your own hands, but for this you will need to cook all the tools. To perform work, you will need two screwdrivers - one with a flat tip, the other - with the Cross. Also need a set of spanners with end heads.
How to perform the task of removal and installation with your own hands:
- Before performing work, you will need to delay the onboard network of your priors. To do this, turn off the ignition, and then open the hood and disconnect rechargeable battery From meals. After that, you will need to remove the steering wheel, but before that, dismantle the plastic lining under the wheel and under dashboard. The casing is attached to several bolts, they must be turned off and put down aside. Removing the steering wheel is carried out taking into account the recommendations described in the service manual.
- When the pad is dismantled with the steering wheel, you will see the connectors of the steering wheel switches to which the wires are summed up. These plugs will need to be disabled. Also the contact ring is subject to dismantling.
- Using a head key to 8, you will need to unscrew the bolt that secures the connector with the wires from the ignition switch. Postpone the bolt to the side not to lose.
- When these actions are executed, press the plastic mounts and disconnect the connectors with the wiring at the top and bottom of the steering column.
- Having done this, at the place of fixing the electric amplifier directly to the column, you will see a plastic curtain. You will need to remove it, it will also be necessary to disconnect the mounts.
- With the help of an end wrench, you will need to slightly loosen nuts, with which the amplifier is mounted to the bottom of the column. It is weakened, and not to get out. When the nuts are weakened, you need to dismantle the electric power from landingHis removal is carried out with an intermediate shaft. But we still recommend disconnecting the amplifier from the shaft, this will allow you to quickly clean the EUR and simplify the installation procedure.
To disconnect the shaft you will need to unscrew the screw that crept the cardan hinge on the shaft, with a wrench at 13. Having done it, it will also be necessary to unscrew the two nuts located on the end parts, after which the entire steering column is removed.
Video "Manual for Independent Repair Amplifier"
If you are faced with the need to repair the electric amplifier on your own, then the released roller will allow you to make this task without errors (the video is published by the CompsMaster channel).
This device creates an effort transmitted directly to the machine control system. Thanks to this driver, there is no need to strain hard for the car to hold on the road and moved in the right direction.
Previously, the hydraulic analogue of the node under consideration was put on all the products of the Volga Automobile Plan, but it was already decided to refuse from Kalina. In return, the machine began to supply an electric amplifier. It is generally inferior in power the aforementioned, but he, however, has a number of significant flaws. These include:
- the need for constant fluid level verification;
- loss of power loss;
- regular inspections of the oil supply system.
EUR NOT characteristic any specified defects.
Moreover, it is much easier to repair the electric powerfulness, but he has plenty of its flaws.
Device
The main components of the EUR are as follows:
- electrical part;
- mechanical;
- controller and peripherals.
The first belongs, in particular, the electric motor.
The mechanical part consists of:
- steering parts;
- compounds;
- input and output shafts;
- bracket;
- tilt adjustment lever;
- spills, bolts, nuts, etc.
This is also ranked and steering Reika.
As practice has shown, most often out of order electronic devices, that is, the ECU, sensors and combining their distribution terminals.
Diagnostics
However, there are currently on sale individual devices for testing the performance of certain electronic nodes. They are easy to use and stand pretty cheap - up to 1.3 thousand rubles.
Thus, find out what happened to the car allows an individual scanner. It should be connected to the ECU - the last will give the error codes. All relevant EUR faults begin on "C". In particular, C1013 signals too low voltage in the onboard system - this means that it is not enough for normal work amplifier.
According to experts, the most common problems are as follows:
- open, burning or closure of wires that feed EUR (they are red and black flowers have a greater cross section than the rest, and also enter a separate connector);
- fuse brave;
- small tension.
In the latter case you need to check both the battery and the generator.
How to look for breakdown without scanner
In the event that the error light is not lit, but there are still suspicions of the breakdown of EUR, or when it is necessary to make sure the management of the management system after its repair should be done like this:
- with the engine off, the steering wheel turns onto the side;
- remember what force had to be attached;
- include ignition and repeat the procedure.
If no noticeable differences are observed, then something unequivocally happened to EUR.
Fault
The mechanical part usually fails, valves, fittings or connecting parts. In this situation, when rotating the wheel of the wheel remain fixed. In general, everything is repaired here everything is quite simple - by replacing the details that have come into disrete.
The breakage of the electric motor usually requires the purchase of a new one, as it is not subject to recovery. The new knot is sold in any large store, and install it is not difficult and on its own.
When it turns out that the connection occurred between the controller and the eur, it is necessary to inspect the connectors. In this case, attention is paid to the second one (the first, as previously noted, power). There you also need to climb if signals do not come from distribution sensors and crankshaft. If the wiring has rummaged or it is disturbed isolation - you have to replace the entire harness. It is sold separately and is inexpensive. Otherwise, it will be necessary to check all contacts and "ring" their multimeter.
Sensors are checked by replacing on knowingly workers. The faulty controller is not repaired, therefore it will be necessary to purchase a new one.
Disassembling the steering column
For this procedure, it is necessary to prepare:
- key on 8 (cape);
- at 13 (end);
- crusadum screwdriver.
Before you start work, it is important to turn off the battery. It is enough to make a wire with a minus terminal.
- remove the steering wheel;
- plastic flaps are removed from the column (they hold on two screws and retainers each);
- dismantle the lower part of the lining, twisting 4 bolts;
- turn off the wires from the lock and the rotation signals switch, etc.;
- the key to 8 partially weakened the clamp, which holds the above-mentioned devices and completely remove them;
- pull the detachable terminals of the EUR controller;
- clean the lining from plastics.
The hydro and electric power steering is designed to facilitate the effort that the driver attaches when the steering wheel is rotated. EUR is a more advanced mechanism compared to GUR, since it uses an electrical drive. The system does not have oil and other hydraulics components, which increases its reliability. Usually engineers "AvtoVAZ" are installed on cars EUR, less common - GUR. In both types of power steering enhancer.
Steering Scheme
Device and principle of operation of the steering mechanism Priors
On the front-wheel drive cars in view of them constructive features It is impossible to establish a classic steering mechanism. The first thing engineers face are lack of space. The standard mechanism can not be delivered, even if instead of the internal location of the engine uses transverse. For this reason, a compact steering rack came to replace the classic, which transmits an effort when turning the steering wheel to the front wheels.
To save places as much as possible, on the prior and many other rail cars toughly fastened on the front panel of the engine compartment - between the engine and the interior. It connects with a steering column that goes into the cabin and ends with a steering wheel. The steering rail is a toothed metal rod. Its teeth are engaged with a steering wheel drive in the form of a shaft. They are located relative to each other at right angles. This is an improved worm type drive.
The driver rotates the steering wheel along with the shaft, the teeth of which move the steering rack inside the casing, engaging for the toothed rod. In the rail casing there are holes through which the steering tips (thrust) are connected. In the center of the racket itself there are holes for fastening these tips, which are attached to the trigger and special levers swivel fist Racks front wheels.
Design and features of operation of the GUR and EUR
To facilitate the rotation of the steering wheel and the improvement of comfort can be used either hydro-or electric powerlifier. Both amplifiers have both pros and cons.
Structurally GUR is a high and high hose system low pressurewhere there is an oil driven by pumps. Liquid The hydraulic caller must be poured into a tank near the pump. It works only when the engine is running. The driver turns the steering wheel, and at this time the fluid through the pressure distributor created by the pump enters the steering mechanism. It enters the working cylinder, presses on the piston, which begins to shift, and facilitates the rotation of the steering wheel. With rectilinear movement, the fluid recesses back to the tank of the system.
Scheme GUR.
Advantages and disadvantages of GUR
In the case of the hydraulic cylinder, the main minus is the bulky of the entire system. But it is cheaper in production and maintenance, and this affects the price of the car. At the moment, GUR is found mainly on cars budget classTo which the prior applies. Amplifier of this type is also installed on expensive powerful SUVs. It is explained by the fact that the GUR is able to transmit a greater power of transmission of torque on steering. In this regard, he wins the electric powerful, but the shortcomings still numbered more:
- In a car equipped with a waterwater, it is not recommended to keep the steering wheel in the extreme right or left position for more than 5 seconds. Otherwise, the oil in the GUR on the prior begins to heat up, which can lead to the system failure.
- The mechanism requires constant control of the oil level, inspection and replacement of drives, hoses, pump.
- The pump depends on the engine operation, and therefore it takes a certain percentage of power at the power plant. If with rectilinear movement GUR does not work, this percentage of power isted wasted.
- A similar system does not imply a setup of modes of operation depending on the speed of movement, the angle of rotation of the steering wheel.
- At low speed, good sensitivity of the steering mechanism is ensured, but it becomes less pronounced on high.
Last disadvantage of engineers compensate for the use of the steering rack with variable gear ratio. Gur has become an outdated system, it is no longer engaged in improving the designers.
The design of the electric powerful
By your EUR device is easier than GUR. It consists of the EU, the torque sensor, the rotation of the steering wheel and the electric motor. There are no hoses and liquids. The electric motor is fixed directly on the steering rake itself, and the torque is transmitted to it by means of a torsion shaft embedded in the steering system.
In the case of GUROM, the effort is facilitated by a liquid, and the current is responsible for this in the electric power. When the driver turns the steering wheel, the force is transmitted to the steering rail. At this time, the torque sensor transmits data to the electronic control unit. The controller expects which strength to transfer to the electric motor to optimally facilitate the rotation of the steering wheel. Since the force must be uniform, the speed of movement is taken into the calculation and the angle of rotation of the steering wheel.
If the steering wheel rotates without the movement of the car or with a small speed, like when parking, the electric motor gets the maximum current strength, the steering wheel is spinning easily. When moving on medium and high speed, such a force is no longer required, and the controller submits a shorter strength.
Pros and cons of EUR
Electrocessor - more modern system With high potential for upgrading. It is not devoid of flaws, but their smaller than the Gora:
- high price,
- the electric motor cannot provide greater power of the effort, so it is installed only on passenger cars.
The disadvantages are leveled, since a structurally electric powerful is constantly being improved.
The benefits of the eur for priors are quite a lot. The system is easy to maintain due to the simplicity of the design. The only detail requiring inspection is the rolling bearing. The EUR mechanism has more compact sizes and can be installed on the steering tree in the cabin, freeing the place in open space. Due to this, the durability of the structure increases, since there is no effect of temperature differences and high humidity.
The electric power does not take power from the engine, which allows you to save fuel. The drive works only during the rotation of the steering wheel. The ECU responds for the work of the amplifier, with which you can adjust the operation of the EUR, taking into account the operating conditions of the car. For the electric power, the extreme position of the steering wheel is not terrible. Movement at high speed makes the steering wheel with EUR more sensitive.
Faults of the steering rack Priory
The problems of the functioning of the steering rail can be different. To identify them, it is not necessary to have a luggage of special knowledge, it is enough to periodically inspect the mechanism.
Big back hand
If driving the engine and actively twist the steering wheel, extraneous sounds should not occur. When not only suspicious noise appear, but the backlash is observed, then the cause of the problem can be a weakened expansion of the spool or insufficient elasticity of Torsion. The steering wheel can be lit. due to the strong wear of the silent blocks, on which the steering rail is fixed. The same problem occurs with the wrong corner of the adjacent of the teeth and the screw, the curvature of the crankcase or the shaft caused by damage or the stroke of the screw type bearing. To determine the malfunction, you will need to diagnose the rail sleeves, steering hinges and teeth.
The appearance of knocks and severity when turning the steering wheel
A heavy steering wheel becomes due to the scurriculous cardan, but most often it is the knock. A number of characteristic reasons for this phenomenon are distinguished:
- noise occurs during the stroke of the vertical bearing shaft;
- excessive wear of hinges and crankcase;
- development of the screw bearing, bushings or teeth;
- curve shaft or crankcase, as a result, the screw is adjacent to the teeth with a displaced angle;
- wear of silent blocks;
- weakened rail mount;
- right steering wheel.
In any case, you will need to diagnose, and when troubleshooting is detected, the displacement and repair of the steering rack of the prior with the replacement of worn items is required.
Steering Tooth Central Tooth Wear
Wearing mechanism with teeth is often found quite. The main purpose of the steering shaft is the transformation of the rotational movement to the translational. For most cars, it is characterized by the development of the resource of the central teeth. The reason is simple: movement in the urban stream is due to a ride in a straight line with small deviations of the trajectory to the left or right.
To determine the fault, you need to turn the steering wheel to the side from the middle position. If the knocks are heard, the further diagnosis is better to spend per service station. With excessive wear of the central touba, the replacement is subject to all shaft.
Problems in the work of the hydraulic
All breakage gur priors, as well as the reasons and methods for their elimination are listed in the table:
|
Fault |
Cause |
Remedy |
| When turning the steering wheel, there is a return (jackets in the opposite direction) | Wearing or weak tension of the pump drive belt | Replacement or adjustment of belt tension |
| For rotation of the steering wheel you need to apply a lot of effort | Wear a pump belt or weak tension. Low level Liquids in a tank. A tank filter with liquid is clogged. Low pump pressure or air plug in the system. An insufficient amount idling Engine. | Adjust or replace the drive belt. Add liquid to the tank. Replace or clean the filter. Replace pump. Delete air traffic. Adjust idle. |
| More effort is required to rotate the steering wheel in the middle position. | Faulty pump or steering mechanism | Check, repair or pump replacement. Find and eliminate the steering fault |
| More effort is required to turn the steering wheel into one of the sides. | Pump failed | Repair or replacement pump |
| The steering is odorless | Not enough liquid in the tank or her leak. Air in the hydraulic system. Development of the resource. | Add liquid and eliminate leaks if they are. Remove air stopper. Check the steering nodes and replace if necessary. Replace tires. |
| Great physical effort is required to quickly turn the steering wheel | Weakened belt tension. Air in the system. Faulty pump. Breakdowns of parts of the steering mechanism. Floating idle speeds. | Stretch strap. Remove air stopper. Replace the pump if repair is not subject to repair. Check and eliminate the malfunctions of the parts of the steering mechanism. Adjust idle. |
| Noise when working gur | Little liquid in the tank. Liquid is reset through safety valve (When turning the steering wheel, a whistle is heard). | Add liquid and eliminate leak. Remove air stopper. Check the pump pressure, repair or replace the part. |
| Vibration steering | Airlock. Wired wheel balancing or tires damaged. | Remove air. Balance the wheels or replace tires |
In practical terms, the GUR is more likely to change the new or obviously good. The original device is a lot, therefore choose analogs. Models chinese manufacturers Proven to be like an inexpensive version of good quality.
Breakdowns of the electric powerful
To diagnose the malfunction of the electric powerful, first of all, it is necessary to determine the conditions under which a malfunction has arisen. There may be several of them:
- the failure occurred after discharge and subsequent charging of the battery;
- after turning the steering wheel to a large angle;
- when performing parking maneuver;
- when moving at speeds above 110 km / h.
Stripping from these reasons, we can conclude about the nature of faults. Often the cause of the failure in the work is the low voltage of the on-board network. For the normal functioning of the EUR, the voltage must be at least 13.5 V. First, the battery is checked. If it is working, perhaps onboard network It was de-energized after removing the battery for recharging. To resume work, it is sometimes enough to rotate 5-6 times the steering wheel in extreme positions and back.
If everything is in order with the battery, it is necessary to check the insulation of the wiring and connections for a short circuit. EUR on the prior does not work in constant mode, like GUR. Maximum load The electric motor occurs when the steering wheel rotates at low speed or the car stands on the spot, the minimum - when driving at a speed of over 100 km / h. After reaching the mark of 110 km / h, the electric powerlier does not work at all.
If, while driving turns, a knock or other suspicious sounds are heard during the rotation of the steering wheel, perhaps weakened the fastening nut - it must be lubricate and tightened. To do this, you need to remove the apron under the steering wheel, remove the casing. Sometimes there may be a situation when the wheels rotate spontaneously. This directly indicates a malfunction of the electric power steering control unit.
The main problem of EUR Lada Priora is that in order to reduce the design, the high-quality electrical power of German production was replaced with a domestic analogue, improved, but "raw".
If the amplifier and speedometer do not work, then the problem in the speed sensor is either contaminated or failed. The same applies to the torque sensors and an angle of rotation of the steering wheel. To start, they need to be cleared and reset the errors from the on-board computer, for this you can use several ways:
- remove the terminal with the battery, leaving the on-board network;
- with the help of diagnostic and adapter programs for connecting to the Diagnostic OBD II connector.
If there are suspicions that the fuse burned down, it must be checked and replaced if necessary. He is in mounting block, in the cabin, below the steering wheel on the left side. In the event of any of the listed faults, they can be eliminated with their own hands, but for full replacement The mechanism of the electric powerful is better to contact the specialists.
Prevention measures
To make the service life of the steering rack of priors maximum, follow the simple rules of operation:
- irregularities, pit and lying police need to pass at low speed and carefully;
- periodically inspect the state of anthem and salon;
- the oil in the GUR should warm up before starting the movement (short turns of the wheel);
- it is not recommended to keep the steering wheel in the extreme right or left position.
Observing these simple rules, you can avoid expensive repair or replace the node.
