Eur Prior does not work. Lada Priora: the main problems of the electric power steering and their elimination

25.09.2019

14.06.2018

If you have become a happy owner of LADA Priora, then from time to time you will have to drive it into the garage and modify something with your own hands. A frequent breakdown is the Priora electric power steering, the problem here is the dampness of the structure. Namely, the replacement of an expensive German electrical circuit, a domestic one, which of course was finalized, but failures happen.

Before you start repairing the Priora electric power steering, it’s worth figuring out what’s broken. First you need to find out under what conditions the EUR failed. There can be several reasons why it failed:

after charging the battery;
when turning the steering wheel at a large angle;
in car parking mode;
when driving over 110 km/h.

Battery problems

Based on this, we can draw the first conclusions about the cause of the breakdown. A common cause of a malfunction is low voltage in the on-board network. The fact is that for the operation of the amplifier you need a supply voltage of 13.5V.

First of all, we test the battery, if everything is in order with it, then we understand further. Perhaps the problem arose when you removed the battery for charging. In order for the electric booster to work again, turn the wheels to the extreme position and back 5-6 times, very often this is enough to resume work.

Wiring fault

In the case when the battery is in order, we look at the wiring, weather conditions, frost, rain or heat can serve as concomitant factors. If, when the weather conditions change, the electric power steering on the Priore is turned off, then this is a clear sign of a wiring malfunction. Check the soldering and insulation of the winding, a short circuit may occur.

Priory's electric power steering does not work all the time. The maximum load on the electric motor is at low or completely absent speed, and the minimum at high speed. So, at Priora, at a speed of 110 km / h, the electric amplifier is turned off completely. In this case, the feedback on the steering wheel becomes maximum. The electric power steering "Kalina" is turned off already at 60 km / h.

Knocking steering wheel while driving

If you hear a knock or squeak while driving, then you need to stretch and lubricate the nut. To get there you need:

remove the apron under the steering wheel, it rests on four self-tapping screws;
remove the steering cover, it rests on three self-tapping screws;
stretch and lubricate the nut indicated in the photo.

Chip errors

When a situation is observed that the wheels turn on their own, the reason is the electronic filling of the Priora electric power steering control unit. As mentioned above, for the sake of economy, they sacrificed quality. Now the situation with this seems to have improved and everything has been finalized, but if you suddenly feel that the steering wheel starts to behave by itself, go for repairs.

If the speedometer fails along with the electric power steering, then you need to look at the speed sensor. It's either just dirty or broken. The same applies to the torque sensor mounted on the amplifier. Clean them well and check if they work.

Do not forget to reset errors on the on-board computer, this can be done in several ways.

Remove the terminal from the battery, wait a few seconds and put it back, the error should disappear.
Using a computer, the corresponding software can be found on the Internet.

Fuse box location

If you suspect that the fuse has blown and you want to check it, then the question arises: where is the fuse for the Priora electric power steering. The mounting control unit is located to the left of the steering wheel. Its opening scheme is simple. All you need to do is turn three latches 90˚ and remove the cover as shown in the photo and you have reached the car's brain filling.

Here you can check and change the failed fuse, then close the cover by pressing it firmly and snapping the three latches back 90˚ in the opposite direction.

Outcome

Diagnostics and minor repairs of the Priora electric power steering can be done by hand. To do this, it is enough to determine what caused the failure and fix the problem, following our advice. It is better to entrust the complete replacement of the electric amplifier to professionals.

On most Lada Priora cars, electric power steering manufactured by Autoelectronics in Kaluga was installed from the factory. It is these EURs that are considered quite reliable and rarely fail. For comparison, problems with amplifiers manufactured by Makhachkala are an order of magnitude more common.

If, for any reason, you need to replace the EUR or simply remove it from the car, you can perform this repair yourself. For this procedure, we need a tool such as:

8 and 13 mm head - preferably deep
ratchet or collar
extension
hammer
chisel

How to remove the EUR on the Priore with your own hands

In fact, the electric power steering is removed without any problems, you just have to remove quite a few details first. Namely, you need to do the following:

After that, using an 8 mm head and a ratchet, unscrew and remove the contact group.

We remove it from the shaft completely so that it does not interfere.

Now you need to disconnect all the power wires from the EUR control unit, which are clearly shown in the photo below.

Each of the plugs has its own latch, so be sure to first look at the design of the latch so that you do not damage it when removing it. When the wires have been dealt with, it is necessary to unscrew the coupling bolt at the cardan mount with the steering rack.

With the help of a chisel and a hammer, we slightly expand the coupling “clamp” of the cardan. Then you can begin to unscrew the nuts securing the EUR to the body. The two nuts are in the front.

And two from the bottom.

Of course, when unscrewing the last fastening nuts, it is necessary to hold the EUR so that it does not fall. Next, pull it off the steering rack shaft, and remove it completely. If necessary, we replace it with a new one. This mechanism is installed in the reverse order and we connect all the necessary wires to their places.

The price of the new EUR Priora

Recently, prices for electric amplifiers have risen so much that not everyone can afford even a used version. For example, a new EUR produced by Kaluga on Priora can be bought at a price of 23,000 rubles, while a few years ago the price was two times lower.

As for used options, used EURs are sold at showdowns from 10 to 12 thousand rubles.

In VAZ Priora cars, the electric power steering performs the function of providing easier vehicle control. With the help of the EUR, the driver can easily turn the steering wheel with one hand. What malfunctions are typical for the amplifier and how to replace the EUR in garage conditions - we will discuss this below.

Possible malfunctions: signs and causes

In what cases is the steering rack, EUR and hydraulic booster dismantled and repaired, what is the circuit, what functions does the torque sensor perform?

To begin with, let's look at the main system malfunctions, why it does not work and how to fix them:

Incorrect operation or breakdown of the control unit is one of the most difficult reasons for the inoperability of the EUR and power steering in Lada Priore. 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 has fixed the inoperability of the control module. Such problems are usually related to soldering problems.
Most likely, the reason is a lack of connection or poor contact between the amplifier circuit and the controller. Such a malfunction is solved by repair, that is, soldering, or replacement, if we are talking about a car under warranty. You can find out more precisely about the problems by conducting computer diagnostics.
Failure of the speed controller. If the speed sensor breaks down, the electric booster spontaneously turns off or does not work at all, while an inoperability error will be displayed on the computer display. In this case, you can try to reconfigure the device or change the damaged sections of the electrical circuit at the junction of the sensor with the control unit. Sometimes the reason lies in the poor contact of the sensor with the on-board network, then the connector will just need to be corrected. If the malfunction is related to a non-working sensor, then the device must be removed and replaced.
The steering wheel turns with great difficulty. First of all, the cause should be sought in the absence of lubrication. If there is little oil in the system, then the steering wheel will be difficult to turn, and uncharacteristic noise or creaking may be heard during rotation. Check the lubrication level and add oil if necessary.
Long-term operation of the electric booster without lubrication can lead to pump failure. The malfunction is accompanied by sounds uncharacteristic for the operation of the EUR, as well as difficult rotation of the steering wheel. If the pump is repairable, then we can assume that you are lucky, but if not, then the device will have to be changed.
Malfunctions in the operation of the electric amplifier can also be facilitated by a reduced voltage in the electrical network of the machine. If the voltage in the on-board network really jumps, then you should initially check the generator and the electrical circuit of its connection. For diagnostics, it is recommended to use a multimeter or voltmeter (the author of the video is Alexander Loginov).

Methods for determining mechanical damage to the EUR and steering mechanisms

Mechanical damage is checked only when the EUR as a whole does not function correctly, but there are no errors on the on-board computer display. To diagnose mechanical failures, turn the steering wheel in different directions until it stops with the engine running. Of course, while the machine must be in one place. If, when turning the steering wheel, you have to exert significantly more effort than usual, this indicates a malfunction in the system and a breakdown of one of the components. The same problem may indicate the failure of other components of the steering system.

To more accurately identify problems, a thorough functional check should be performed. You will need to drive your Lada Priora onto a flyover, pit or lift, and then carefully diagnose all the components of the chassis. It is necessary to check the racks, tie rods and other components, since it is likely that the amplifier itself is working, and the symptoms of a malfunction are associated with other problems. To service the electric amplifier at home, you will have to completely disassemble the system, clean its components and put it back together.

Pinout diagram and designations of EUR contacts

Self-removal and installation of the amplifier

The procedure for dismantling and installing a new electric amplifier can be done by yourself, but for this you will need to prepare all the tools. To perform the work, you will need two screwdrivers - one with a flat tip, the other with a Phillips one. You will also need a set of socket wrenches.

How to do the DIY removal and installation task:

Before performing work, you will need to de-energize the on-board network of your Priora. To do this, turn off the ignition, then open the hood and disconnect the battery from power. After that, you will need to remove the steering wheel, but before that, remove the plastic trim located under the steering wheel and under the dashboard. The casing is attached to several bolts, they must be unscrewed and set aside. The removal of the steering wheel is carried out taking into account the recommendations described in the service manual.
When the pad is dismantled along with the steering wheel, you will see the steering column switch connectors, to which the wires are connected. These plugs will need to be disconnected. The contact ring is also subject to dismantling.
Using an 8 socket wrench, you will need to unscrew the bolt that secures the connector with the wires from the ignition switch. Set the bolt aside so you don't lose it.
When these steps are completed, press on the plastic fasteners and disconnect the wiring connectors at the top and bottom of the steering column.
Having done this, in the place where the electric amplifier is fixed directly to the speaker, you will see a plastic curtain. You will need to remove it, for this you will also need to disconnect the fasteners.
Using a socket wrench, you will need to slightly loosen the nuts that secure the amplifier to the bottom of the speaker. It is to loosen, not to twist. When the nuts are loosened, it is necessary to dismantle the electric amplifier from the seat, its removal is carried out with the 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 secures the universal joint to the shaft using a 13 wrench. Having done this, you will also need to unscrew the two nuts located on the end parts, after which the entire steering column must be removed.
Then you will need to dismantle the bolt and cardan from the splined pulley of the mechanism. At the same time, pay attention to the labels - during further installation, in any case, they must match. The marks are located on the protective cover, pulley and cover of the starter mechanism. Now you can clean the electric booster and other system components, or replace the failed EUR with a new one. The assembly procedure is carried out in reverse order.

Photo gallery "Removing the EUR"

To date, each Priora is equipped with an electric power steering, this also applies to the basic configuration. Although initially the device went as an additional comfort feature. Owners of this model know that the unit often jams and breaks, however, if necessary, repairs can be done by hand. More on this later in the article.

Thanks to the operation of the electric power steering, the load and effort on the steering wheel are reduced when making a turn. The unit greatly facilitates driving and does not allow you to make dangerous maneuvers at high speed. The node contains the following elements:

Electric motor.
Column.
Steering wheel.
Moment sensor.
Electronic control unit.
Steering wheel mechanism.

When the steering wheel is turned, the EUR is activated. The moment is provided by the electric motor present in the design of the electric amplifier. The torque sensor measures the value and sends it to the electronic unit. Depending on the angle of rotation, the ECU calculates how much power the engine needs to be given. The switch, which is located under the steering wheel, has a device that determines the angle of rotation. Rotation and torque sensors transmit information to the electronic unit, which determines whether the electric motor is operating at the required speed.

On previous generations of the VAZ, a hydraulic booster was installed, which gave virtually the same force in all rotation ranges. As for the electric booster, the degree of effort here depends on a lot of factors: the speed of the steering wheel and its angle, the speed of the power plant, the driving speed.

Electric power steering Priors, weak link or not

Of course, the electric power steering is a very useful option, but at the same time it is the weak link of Priora, since it periodically fails.

Signs of a complete failure of the VAZ electric booster

As practice shows, this unit does not have so many malfunctions, breakdowns occur in the same elements. The first thing to disassemble is the complete failure of the electric amplifier. When turning off the EUR, check the on-board computer screen, most likely you will see a code on it that reports malfunctions in the unit. However, in some cases, diagnosing the shutdown of the EUR can only be done in practice. Do the following:

Turn off the engine and turn the steering wheel in different directions several times.
Repeat these steps, but with the engine running.
Steering wheel force hasn't changed? This means that the unit is completely shut down.

The electric power steering does not work, is it possible to drive a car

Even if the electric power steering is not working, you can continue driving, but this is not recommended. The driver needs time to get used to driving with the help of the EUR. Therefore, it is advisable to start diagnosing right away.

The speed sensor is out of order, how it affects the electric power steering and speedometer, how to fix it

Sometimes the speedometer and amplifier stop working at the same time. The reason for this defect is a failed speed sensor. It should be understood that these three components are related. The torque sensor transmits information to the control unit. He compares it with speed, and then determines the effort. If the cause is 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 to the power steering and speedometer. If there are no breaks in the switching, change the sensor.

EUR does not work due to low voltage, how to fix

Low voltage in the car network can also lead to the shutdown of the electric amplifier. Look for faults in the insulation of the wiring. If it is damaged, short circuits will occur in the network. In addition, insulation faults cause alternator malfunction. To troubleshoot, check the alternator and wiring. There are many contacts in the torque sensor, which, in conditions of severe pollution, contribute to turning off the electric amplifier. In this case, it is necessary to disassemble the unit and clean the contacts of the torque sensor.

The car does not listen to the steering wheel, what about the EUR, what should the driver do

The car moves on a flat road surface, the position of the steering wheel does not change, but suddenly the car turns to the side. Such unpredictable behavior of the EUR requires urgent diagnostics, since at the most inopportune time the electric power steering can send the car into the oncoming lane or to the side of the road. In this case, you must stop driving and turn off the amplifier.

How to turn off the EUR, in detail

To turn off the electric booster, it is necessary to remove the fuse responsible for supplying voltage to the EUR. To remove this fuse, do the following:

Near the left foot of the driver is the cover of the mounting block.
Turn the latches and snap off the fasteners.
The block where the required fuse is located is located near the expansion tank.
Remove fuse F5 (50 A).

The reason for this behavior is a malfunction in the EUR device. This may be a control unit, a torque sensor, mechanical damage or clogged contacts.

Where to make a fault diagnosis of the EUR

Preparatory work to replace the EUR

Before removing the amplifier, it is necessary to dismantle a lot of parts of the instrument panel: the ignition switch, casing, steering wheel with an airbag. When these elements are removed, you can proceed to the removal of the EUR.

Tools, fixtures, consumables

Deep heads on "8" and "13".
Chisel and hammer.
Ratchet and extension (alternatively, you can use a crank).

Replacing the EUR with your own hands, step by step instructions

Of course, an independent replacement of the EUR is a bit laborious, but not at all difficult even for a novice motorist. Good luck!

If, for any reason, you need to replace the EUR or simply remove it from the car, you can perform this repair yourself. For this procedure, we need a tool such as:

8 and 13 mm head - preferably deep
ratchet or collar
extension
hammer
chisel

How to remove the EUR on the Priore with your own hands

In fact, the electric power steering is removed without any problems, you just have to remove quite a few details first. Namely, you need to do the following:

After that, using an 8 mm head and a ratchet, unscrew and remove the contact group.

We remove it from the shaft completely so that it does not interfere.

Now you need to disconnect all the power wires from the EUR control unit, which are clearly shown in the photo below.

With the help of a chisel and a hammer, we slightly expand the coupling “clamp” of the cardan. Then you can begin to unscrew the nuts securing the EUR to the body. The two nuts are in the front.

And two from the bottom.

The price of the new EUR Priora

As for used options, used EURs are sold at showdowns from 10 to 12 thousand rubles.

In VAZ Priora cars, the electric power steering performs the function of providing easier driving. With the help of the EUR, the driver can easily turn the steering wheel with one hand. What malfunctions are typical for the amplifier and how to replace the EUR in garage conditions - we will discuss this below.

[ Hide ]

Possible malfunctions: signs and causes

In what cases is the steering rack, EUR and hydraulic booster dismantled and repaired, what is the circuit, what functions does the torque sensor perform?

To begin with, let's look at the main system malfunctions, why it does not work and how to fix them:

Incorrect operation or breakdown of the control unit is one of the most difficult reasons for the inoperability of the EUR and power steering in Lada Priore. 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 has fixed the inoperability of the control module. Such problems are usually related to soldering problems.
Most likely, the reason is a lack of connection or poor contact between the amplifier circuit and the controller. Such a malfunction is solved by repair, that is, soldering, or replacement, if we are talking about a car under warranty. You can find out more precisely about the problems by conducting computer diagnostics.
Failure of the speed controller. If the speed sensor breaks down, the electric booster spontaneously turns off or does not work at all, while an inoperability error will be displayed on the computer display. In this case, you can try to reconfigure the device or change the damaged sections of the electrical circuit at the junction of the sensor with the control unit. Sometimes the reason lies in the poor contact of the sensor with the on-board network, then the connector will just need to be corrected. If the malfunction is related to a non-working sensor, then the device must be removed and replaced.
The steering wheel turns with great difficulty. First of all, the cause should be sought in the absence of lubrication. If there is little oil in the system, then the steering wheel will be difficult to turn, and uncharacteristic noise or creaking may be heard during rotation. Check the lubrication level and add oil if necessary.
Long-term operation of the electric booster without lubrication can lead to pump failure. The malfunction is accompanied by sounds uncharacteristic for the operation of the EUR, as well as difficult rotation of the steering wheel. If the pump is repairable, then we can assume that you are lucky, but if not, then the device will have to be changed.
Malfunctions in the operation of the electric amplifier can also be facilitated by a reduced voltage in the electrical network of the machine. If the voltage in the on-board network really jumps, then you should initially check the generator and the electrical circuit of its connection. For diagnostics, it is recommended to use a multimeter or voltmeter (the author of the video is Alexander Loginov).

Methods for determining mechanical damage to the EUR and steering mechanisms

Pinout diagram and designations of EUR contacts

Self-removal and installation of the amplifier

How to do the DIY removal and installation task:

Before performing work, you will need to de-energize the on-board network of your Priora. To do this, turn off the ignition, then open the hood and disconnect the battery from power. After that, you will need to remove the steering wheel, but before that, remove the plastic trim located under the steering wheel and under the dashboard. The casing is attached to several bolts, they must be unscrewed and set aside. The removal of the steering wheel is carried out taking into account the recommendations described in the service manual.
When the pad is dismantled along with the steering wheel, you will see the steering column switch connectors, to which the wires are connected. These plugs will need to be disconnected. The contact ring is also subject to dismantling.
Using an 8 socket wrench, you will need to unscrew the bolt that secures the connector with the wires from the ignition switch. Set the bolt aside so you don't lose it.
When these steps are completed, press on the plastic fasteners and disconnect the wiring connectors at the top and bottom of the steering column.
Having done this, in the place where the electric amplifier is fixed directly to the speaker, you will see a plastic curtain. You will need to remove it, for this you will also need to disconnect the fasteners.
Using a socket wrench, you will need to slightly loosen the nuts that secure the amplifier to the bottom of the speaker. It is to loosen, not to twist. When the nuts are loosened, it is necessary to dismantle the electric amplifier from the seat, its removal is carried out with the 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 secures the universal joint to the shaft using a 13 wrench. Having done this, you will also need to unscrew the two nuts located on the end parts, after which the entire steering column must be removed.
Then you will need to dismantle the bolt and cardan from the splined pulley of the mechanism. At the same time, pay attention to the labels - during further installation, in any case, they must match. The marks are located on the protective cover, pulley and cover of the starter mechanism. Now you can clean the electric booster and other system components, or replace the failed EUR with a new one. The assembly procedure is carried out in reverse order.

On a Lada Priora car, a device such as electric power steering is offered as standard as a comfort function. It is about this device that we will talk about in this article. We invite you to find out what malfunctions the car owner of this car may encounter and how to replace the assembly yourself.

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The role of the electric power steering in the VAZ 2170 Priora

It's no secret that the electric way of control plays an important role in ensuring safety while driving. The EUR or Power Steering Priora performs the option of lowering the level of load on the steering wheel while it is turning. A key advantage of using such a EUR device on Priora is driving comfort as a result of improved feedback between the steering wheel and wheels.

The electric booster is a more modern and improved unit, which is not only easier to use, but also does not require the introduction of additional lines to ensure operation. In addition, this device does not take power from the power unit. The main advantage of the EUR is that it does not require frequent maintenance and fluid control, unlike the power steering.

But it should be noted that such a system has several drawbacks, one of them is a rather weak feedback between the road surface and the control system. As a result, driving in snow can be difficult. Unlike Prior, foreign cars are equipped with additional mechanisms and assemblies for blocking and stabilizing, so the way to control the EUR in the domestic version is less reliable. In addition, in practice, a faulty electric amplifier with poor traction is a fairly common phenomenon.

Common malfunctions and solutions

Many priors are faced with device breakdowns, in particular, we are talking about a malfunction of the control unit itself. If the system control unit does not work correctly or is out of order, a corresponding error will appear on the on-board computer display. After deciphering it, you can understand that the computer reports a failure to connect the EUR, which in most cases indicates a problem in the soldering. In particular, we are talking about the junction of the amplifier board with the controller.

This malfunction is solved either by replacing the system at the dealer, if the car is under warranty, or by repairing. If you do not have experience in chip tuning or work with electronic devices, then the solution of 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 that the speed sensor malfunctions, which again contributes to the on-board computer error. This type of malfunction can be solved by reprogramming the device or by replacing the wires in those places where the regulator connects to the controller. If the regulator itself is inoperative, then it will have to be replaced (the author of the video is Alexey a-skorp).

Too low voltage in the on-board network of a car is also a common problem. In this case, it is necessary first of all to pay attention to the diagnostics of the generator device or wiring. Use a tester to check. In any case, if problems are found in the operation of the system, it is necessary to repair the steering rack with your own hands. Operation of a car with a non-working EUR is not allowed until the problem is completely eliminated.

How to determine mechanical damage to the EUR and steering mechanisms?

Mechanical diagnostics is carried out if it is not normal, but the on-board computer does not give errors. To check for mechanical damage, it is necessary to turn the steering wheel to the left and right as much as possible, while the engine must be running. It should be noted that when turning the steering wheel, the vehicle must stand in one place.

In the event that you notice that when turning the steering wheel you need to make more efforts than usual, this may indicate a failure of parts or components of the amplifier. But it can also indicate a breakdown of other elements of the steering system (a video on diagnosing a power steering with a paper clip is presented below, the author of the video is Gosha Vakhromeev).

To determine exactly what was the problem, you will need to conduct a more thorough diagnosis. To do this, the vehicle must first be driven onto a lift and lifted, while carefully checking all the elements of the walker for operability. Racks, steering rods, etc. are subject to verification. Such a procedure can be carried out without problems at any service station or on your own, but only if you have a lift and certain diagnostic skills. There is a possibility that the repair of the EUR is not required, since it is operational in itself, but repair of other elements is required.

In order to prevent the occurrence of malfunctions associated with the electric amplifier, it is necessary from time to time to clean the system, as well as the contact nodes. To carry out service yourself, you will need to remove your EUR, completely disassemble it, clean it and put it back. We will tell you more about this below.

Removal and installation of the EUR at home

In order to remove the device from the car, you will need to prepare in advance everything that you may need in the process. In particular, we are talking about screwdrivers with flat and Phillips tips, as well as a set of wrenches with socket heads.

So, how is the procedure for removing and installing an electric amplifier:

First of all, you need to turn off the power to the on-board network, to do this, disconnect the negative terminal from the battery. Then dismantle the steering wheel by first removing the plastic trim under it and on the control panel. Dismantling the steering wheel is carried out in accordance with the service book for the car.
Using a Phillips screwdriver, it is necessary to unscrew the four screws securing the decorative trim on the steering panel.
Having done this, you can see the wiring pads - they must be disconnected from the steering column switch, the slip ring is also disconnected.
Using an 8 wrench, you need to unscrew the screw securing the wire blocks that run from the ignition switch.
Next, you need to click on the plastic fixing elements and disconnect the pads with wires at the top and bottom of the speaker itself.
In the place where the electric power steering is attached to the column itself, it will be necessary to dismantle the so-called plastic curtain; for this, the latches should be disconnected.
Using a socket wrench, slightly loosen the nuts that secure the assembly to the bottom of the column.

After performing these steps, the amplifier itself is removed - it is dismantled together with the intermediate shaft. But in order to make it more convenient for you to clean the assembly and then install in the reverse order, it is advisable to disconnect these components from each other in advance. To do this, using a 13 wrench, unscrew the screw that secures the universal joints to the shaft itself. Then you will need to unscrew the two fixing nuts at the ends, after which the steering column itself can be removed.

Then you will need to remove the screw and remove the cardan from the splined pulley of the assembly. To make the reinstallation procedure more convenient after removal, it is advisable to make sure that all marks match. We are talking about marks on the protective cover, pulley, as well. Cleaning of the contact group mechanism and other elements of the system must be done carefully so that all components remain intact and undamaged. If you seek help from specialists in this matter, then the cleaning procedure will cost you an average of about 30-50 dollars, depending on the region.

One of the most problematic places in Lada Priora is the electric power steering. That is why the repair of the electric power steering is a common problem faced by Priora owners. If you find that the EUR does not work on the Priore, then immediately contact a specialist or do the repairs yourself. Most often, the Priora electric power steering has two causes of malfunction.

Interesting fact! The electric power steering was invented and introduced into a car back in 1990 in Japan at the factories of the Toyota auto concern.

How to determine that the EUR needs repair

The electric amplifier on the Priore does not work very often. It refuses to work on both new cars and used cars.

In the event of an electrical problem a yellow button on the dashboard lights up, on which a steering wheel with an exclamation mark is drawn. This button notifies you of malfunctions or failure of the electric power steering.

You can drive a car without the help of an electric booster. To do this, you just need to pull out the EUR fuse, which is located to the left of the steering wheel. EUR malfunctions on the Prior should not scare you, since this malfunction is eliminated even on your own.

The main malfunctions of the electric power steering and their causes

The electric power steering on the Priore fails for the following reasons:

1. When the ignition is turned on, the EUR does not pass self-control and turns itself off so as not to interfere with the driver and not create an emergency on the road. In this case, the repair will be expensive.

2. The electric power steering on the Prior does not work due to a malfunction of the speed sensor. The EUR scans the vehicle speed from the speedometer, which receives data from the speed sensor. When the sensor breaks, it starts to give out incorrect information. Then the EUR spontaneously turns off, because it does not know the exact speed of the car. In this case, the repair of the electric amplifier is carried out by replacing the sensor.

If the electric power steering does not work on the Priore, a flashing error on the dashboard will immediately let you know about it.

How to repair the EUR with your own hands

The Priora electric power steering has several causes of malfunction and one way to solve them. For repair you will need:

Head for 8 and 13 mm
Ratchet or collar
Extension
Hammer
Chisel

EUR on Lada Priora: malfunctions and solutions

First you need to remove the steering column cover, then remove the ignition switch and steering wheel. In the case of the EUR on the Priore, malfunctions should be eliminated step by step.
Further using sockets 8 mm and ratchet unscrew and remove the contact group. It must be completely removed from the shaft so that it does not interfere. Next you need disconnect the power wires from the EUR control unit. Each plug has its own lock, so you need to work carefully so as not to damage them.

After that you can unscrew the nuts securing the EUR to the body. Two nuts are at the front and two more at the bottom. When all the nuts are unscrewed, the EUR must be removed from the steering rack shaft. We change it to a new one and assemble the mechanism in the reverse order.

Do-it-yourself Priora electric power steering repair will significantly save your budget.

Rules for the operation of the electric power steering, we extend the life of the EUR

Often the EUR Priora does not work due to its improper use. In order for the electric amplifier on the Priore not to fail, simple rules should be avoided:

Do not leave the steering wheel in extreme positions for a long time. It is impossible to start abruptly when the steering wheel is in the extreme position.

When parking or turning the car, you do not need to hold the steering wheel in the extreme position for more than 4-5 seconds.

Regular technical inspection of the Priora EUR mechanism will identify malfunctions and help to eliminate them immediately.

You should pay attention to the incomprehensible sounds that the electric amplifier makes.