Electric power steering prior to malfunction repair do it yourself

In detail: Prior's electric power steering, do-it-yourself repairs from a real master for the site my.housecope.com.

The car of our time is fundamentally different from the cars of the last century. This applies to all aspects. And one of the main features of the new car was the ease of rotation of the steering wheel. Now, even while in a stationary car, the driver can turn the steering wheel with two fingers. How is this effect achieved? This is the work of the electric power steering (EUR). But sometimes it fails.

This device makes more powerful the effort that is transmitted to the steering system. Simply put, the steering wheel can be turned with two fingers. Previously, hydraulic amplifiers (GUR) were installed on VAZ models, but starting with the Lada "Kalina" they were abandoned.

The EUR was developed.
In terms of power transmission power, power steering is preferable, however, it has many disadvantages:

Power take-off from the engine.
Constant monitoring of the level in the tank is required.
Checking oil lines.

The electric amplifier is devoid of all these disadvantages. And it is even easier to repair than power steering. But he also has enough of his faults.

The main components of an electric amplifier:

Mechanical part.
Electrical component.
Electronic control unit (ECU) with peripherals.

The mechanical part includes the steering parts themselves, the connecting parts and the mounting hardware. That is, the input and output shafts, bracket, nuts, bolts, studs, and springs. Well, also an adjusting lever to change the angle of the steering wheel.

Electric, actually the amplifier motor itself. The most vulnerable is the electronic component. ECU and connectors with sensors.

Of course, the first sign of a breakdown in the system is the activation of the ECU warning light on the dashboard. Typically on the factory standard Priora model, this is a steering wheel-shaped icon with an exclamation mark. When the ignition is turned on, it lights up for a few seconds, and then, if the computer decides that everything is in order, the light goes out. And accordingly, when a breakdown of the Priora electric amplifier is detected, it lights up and remains on.

Video (click to play).

So, carry out computer diagnostics, contact the ECU, get error codes with or without decoding. Even if the scanner only gives out codes, it's not a big deal. You can just know that the faults associated with the EUR "Priora" begin with the symbol "C". For example, C1013, means that there is a low voltage in the network, and this is not enough for an electric amplifier.

Well, there may be several options. The most common case is the weakening, or burning of one of the two power wires going to the EUR. These are red and black wires, large cross-section, going into a separate connector on the device. They are fairly easy to check. And also it can be a large fuse for the device, everything is clear here. Well, the third reason is a shortage in the car's network, for example, a weak or faulty battery or generator. With such a malfunction, see a specialist, and nothing else. To an auto electrician.

Well, if the indicator does not light up, and there are doubts about the serviceability or malfunctions of the Priora EUR, or after the repair it is necessary to make a “control”, proceed as follows: you need to turn the steering wheel without turning on the ignition. Remember the effort. And repeat the operation by starting the motor. If there are no changes, something has happened to the Priora ESD!

And again the same list, mechanics, electrical, electronics. Well, everything is clear with the mechanics, this is a failure of shafts, connections and fittings. With this malfunction, the wheels simply do not respond to turning the steering wheel.And this malfunction is the easiest to eliminate. But with the rest of the malfunctions it is much more complicated. If the malfunctions are related to the failure of the servomotor itself, amplifier, Priora, you shouldn't even think about repairing. It is easier to buy a new EUR in the store and replace it yourself. Or take it to the service, and try to repair it there. If the connection with the Priora ECU is lost, then this is most likely the second connector, with a loop of wires, the same is true in case of non-receipt of a signal for the unit, from external sensors - the crankshaft and camshaft. Yes, yes, they are also important for the operation of the device. In these cases, you can remove and repair, or replace the inexpensive wire harness.

Remained the "brain" of the electric amplifier, and the internal position sensors of the unit shafts. Tinkering with sensors is not an option, only a repair service. But the computer itself, if it malfunctions, you can buy and replace yourself.

This is not as difficult a procedure as it might seem. And it even requires very little tool:

Ring key for 8.
A head with a knob, or a socket wrench for 13.
Curly (cross) screwdriver.

And nothing more than the ability to use them. This is provided that the steering wheel itself has already been removed, which is another story.

Now let's go. Remove the plastic pads from the steering column by unscrewing 2 self-tapping screws and unfastening 2 clips. With a screwdriver, we unscrew the bolts, in the amount of four pieces, and separate the lower part of the lining. Now interfere with the lock, and the "helicopter" - switches for turns and wipers. First of all, pressing the antennae on the connectors, disconnect all the wires. Then, with a key of 8, loosen the clamp that attaches these devices, after which they will freely come off the shaft casing.

Disconnect the two connectors from the EUR ECU. Remove the plastic cover from the special pin.

Do not unscrew the lower nuts at all, but turn them a few turns with a wrench No. 13. But pull the pinch bolt of the intermediate shaft hinges completely, unscrewing its nut by 13. Well. Having unscrewed all the fastening nuts, you can pull out the faulty EUR "Priora". Using a 13 key, release the lower shaft of the device from the splined joint. OK it's all over Now. You can try to fix the malfunctions described above yourself, take it to a workshop, or simply put a new unit on your "Prior", proceeding in the reverse order.

Useful video on the general repair of the Priora electric power steering:

Today, each Priora is equipped with an electric power steering (EUR), this also applies to basic configurations. At the beginning of the car's release, the unit came as an additional comfort option. The owners of this model know that the unit often jams and breaks down. The power steering has become a weak point of the Priora, but if necessary, repairs can be done by hand. In this material, we will take a closer look at what the EUR is, what breakdowns occur in this unit and how to fix them on our own. It is worth taking on the work only if you have experience in servicing the car, since when replacing we will have to disassemble half of the dashboard.

Due to the work of the EUR, the load and effort on the steering wheel when making a turn is reduced. The unit greatly facilitates driving, and at high speed it does not allow dangerous maneuvers.

The unit includes the following components:

Wheel;
Speaker;
Shaft;
Electric motor;
Steering wheel mechanism;
Electronic control unit (ECU);
Torque sensor.

When turning, the electric booster turns on. The moment is provided by an electric motor, which is present in the design of the EUR. The torque sensor measures the indicator and sends it to the ECU. Depending on the angle of rotation, the block calculates how much power needs to be given to the motor. In the switch located under the steering wheel, there is a device that determines the angle of rotation.The torque and rotation sensor transmits data to the ECU, which "determines" whether the electric motor is operating at the desired speed.

On previous generations of VAZ cars, a hydraulic booster was installed, it gave almost the same force in all rotation ranges. With regard to the EUR, the degree of effort depends on many factors - the speed of the steering wheel and its angle, the speed of the power plant, the speed of movement.

Undoubtedly, an electric booster is a more reliable unit than a device operating on hydraulics, but malfunctions also appear in the EUR. If they are found, it is necessary to immediately carry out repairs, since the safety of the driver, his companions and other road users depends on the operation of the amplifier.

As practice shows, there are not so many malfunctions of this unit; breakdowns occur in the same parts. The first thing that is worth analyzing is the complete failure of the EUR. When you turn off the amplifier, you need to check the on-board computer screen, most likely, you will see a code there that indicates malfunctions in the unit. But sometimes it is only possible to determine the disconnection of the amplifier in practice.

We carry out the following actions:

Turn off the engine and turn the steering wheel several times in different directions;
We repeat these actions, but with the engine running;
Has the steering effort not changed? This means that the node has completely shut down.

Even with the inoperative EUR, you can continue driving, but this is not recommended. The driver needs time to get out of the habit of driving with the help of the amplifier. It is better to immediately engage in diagnostics and determine which component needs repair or replacement.

Sometimes the booster and speedometer stop working at the same time. The reason for this defect is the speed sensor, which is out of order. Taking an electrical diagram, you will understand that these three elements are connected. The torque sensor sends data to the control unit, it compares them with the speed and determines the force. If the speed sensor is the cause, then the repair consists in checking the wiring that leads to this element. It is also worth checking the wires connecting the sensor to the speedometer and power steering. If there are no breaks in the commutation, then the sensor should be changed.

Low voltage in the car network can also lead to shutdown of the EUR. Faults should be looked for in the insulation of the wiring. If it is damaged, short circuits will appear in the network. Also, insulation faults lead to malfunctioning of the generator. To eliminate the malfunction, check the wiring and the generator. There are many contacts in the torque sensor, which, when heavily soiled, contribute to the shutdown of the EUR. In this case, the repair is the disassembly of the unit and cleaning the contacts of the torque sensor.

The driver is driving on a flat road, the position of the steering wheel does not change, and suddenly the car turns to the side. Such an unpredictable power steering behavior requires urgent diagnostics, since at the most inopportune moment the Lada Priora electric power steering can send the car to the side of the road or into the oncoming lane. In such a situation, stop driving and turn off the amplifier. To do this, we need to remove the fuse, which is responsible for supplying voltage to the amplifier.

To get this fuse, you need to do the following:

At the driver's left foot there is a mounting block cover;
We turn the latches and snap off the fasteners;
The block where the required fuse is located can be found near the expansion tank;
Feel free to take out the F5 fuse (50 A) - it is responsible for providing the power supply circuit to the EUR.

The reason for this behavior is a malfunction in the electric amplifier device. It can be a torque sensor, a control unit, clogged contacts or mechanical damage. It is recommended to carry out diagnostics by professionals, since you will not be able to check the control unit in a garage; replacement can be done by hand.

So, you need to replace the electric amplifier with Priora or just check the condition of its contacts. In any case, the repair involves the complete removal of the assembly. Prepare the necessary tools:

Chisel and hammer.
Deep head for 8 and 13.
Extension bar and ratchet; alternatively, a wrench can be used.

It is quite easy to remove the amplifier itself with your own hands, but in order to get to its mountings and the control unit, you will need to remove a lot of dashboard parts: the steering wheel along with the airbag, the casing and the ignition switch. Once these components have been removed, repairs to the amplifier can begin.

Lada Priora: the main problems of the electric power steering and their elimination
How to determine that the EUR needs repair
The main malfunctions of the electric power steering and their causes
How to repair a EUR with your own hands
EUR on Lada Priora: malfunctions and remedies
Rules for the operation of the electric power steering, we extend the life of the EUR

One of the most problematic places for Lada Priora is the electric power steering. That is why repairing the electric power steering is a frequent problem faced by Priora owners. If you find that the EUR does not work on the Priora, then immediately contact a specialist or take care of the repair yourself. Most often, Priora's electric power steering has two causes of malfunction.

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

If there is a problem with the electric booster on the dashboard, a yellow button lights up, on which a steering wheel is painted with an exclamation mark. This button notifies of malfunctions or refusal to work with 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. The faults of the EUR on the Priora should not scare you, since this malfunction can be eliminated even on its own.

The electric power steering on the Priora refuses 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 situation on the road. In this case, repairs will be expensive.

2. Electric power steering on Priora also 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 down, it starts to give incorrect information. Then the EUR spontaneously turns off, since 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 Priora, a blinking error on the dashboard will immediately let you know about it.

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

8 and 13 mm head
Ratchet or crank
Extension
Hammer
Chisel

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 Priora, the malfunctions should be eliminated step by step.

Further with the help 8 mm sockets and ratchets unscrew and remove the contact group. It must be completely removed from the shaft so that it does not get in the way. 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.

Followed by unscrew the tightening bolt at the universal joint with the steering rack. With a chisel and a hammer slightly widen the clamping "clamp" of the cardan.

Then you can unscrew the nuts securing the EUR to the body. There are two nuts at the front and two 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 electric power steering Priora repair will significantly save your budget.

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

Do not leave the steering wheel in extreme positions for a long time. When the steering wheel is in the extreme position, it is not allowed to start abruptly.

When parking or turning a 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 EUR Priora mechanism will reveal malfunctions and help to immediately eliminate them.

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

Would need: Phillips screwdriver, 8 socket wrench, 13 socket wrench.

Remove the negative terminal from the battery. Remove the steering wheel, steering column decorative trims and instrument panel trim. Further in order:

Unscrew the 4 self-tapping screws with a Phillips screwdriver and remove the bottom panel trim.
Disconnect the pads with wires from the steering column switches and slip ring.
Loosen the pinch bolt using a “8” box spanner. Disconnect the blocks with wires from the ignition switch.
Compress the clips and disconnect the harness with wires from the steering column.

Image - Electric power steering prior to malfunction repair by own hands

Compress the clips and disconnect the wiring harness at the bottom of the steering column.
Release the clips, and disconnect 2 blocks with wires from the electric power steering.
Remove the decorative cover from the steering column mounting stud.
Loosen the nuts of the lower mounting of the steering column using a 13 ”socket wrench. Unscrew them a few turns.

Unscrew the nut of the pinch bolt using a 13 ”wrench (it connects the cardan joints of the intermediate shaft).
Remove the bolt.
Unscrew the left steering column top mounting nut using a 13 ”socket wrench.
Unscrew the right steering column top mounting nut using a 13 ”socket wrench.

Remove the Priora steering column assembly.
Unscrew the nut of the pinch bolt of the flange of the lower propeller joint and the steering shaft using a key "13".
Remove the bolt and remove the universal joint from the splined shaft of the steering gear.

Installation of the steering column with EUR is carried out in the reverse order. Before installation, make sure that the groove on the shaft, the mark on the steering box housing cover, and the marks on the protective cover are positioned properly.

Location of marks for installing the steering shaft:

1 - angular recess in the steering gear housing cover; 2 - groove on the steering gear shaft; 3 - steering gear housing cover; A - corner ledge on the protective cover; B - cutout in the edge of the protective cover.

Steering elements of Lada Priora:

1 - right steering rod assembly; 2 - right support of the steering mechanism; 3 - bracket of the steering mechanism support; 4 - intermediate cardan shaft; 5 - electric amplifier; 6 - steering wheel; 7 - steering column pipe; 8 - left support of the steering mechanism; 9 - steering gear; 10 - left steering rod assembly

Electric Power Steering Column Priora:

1 - input shaft; 2 - column pipe; 3 - column bracket; 4 - electric amplifier; 5 - electric booster control unit; 6 - steering column tilt adjustment lever; 7 - tie rod; 8 - rear bracket of the electric booster; 9 - spring; 10 - output shaft; 11 - bolt-axis; 12 - front bracket of the electric booster; 13 - power connector of the control unit; 14 - control connector of the control unit; 15 - nut.

Electric power steering Lada Priora: we understand in detail the features and possible problems

When driving a car, the steering mechanism and the braking system play a huge role in safety.Therefore, it is important to monitor the proper operation of these elements.

Increasingly, an amplifier is installed on the steering gear of a passenger car. Its task is to reduce the effort of a person on the steering wheel during maneuvers. At the moment, the car can be equipped with one of two types of power steering: power steering (GUR) and electric power steering (EUR).

The device of the steering system on the Lada

The advantage of the hydraulic booster is the complete transmission from the wheels to the steering wheel of the impact of the road surface, which provides good feedback. The disadvantages of the power steering include the fact that it takes up part of the engine power, which is why you have to constantly monitor the fluid level in the power steering reservoir and the condition of the pipelines.

The electric amplifier is devoid of these shortcomings, moreover, it is somewhat easier to operate, repair, and also affects the power to a lesser extent. But it also has its drawback. It affects the fact that the transmission of the impact from the wheels occurs to a much lesser extent, therefore the feedback is less, which affects the so-called "feeling of the road". The lack of this feeling, especially in winter, can affect the incorrect assessment of the situation while driving.

Lada Priora can be equipped with both a hydraulic booster and an electric booster. Many motorists increasingly prefer cars with EUR, although it would be more accurate to call it EMUR - electromechanical power steering.

Despite the fact that the EUR is considered more reliable than the power steering, it still has malfunctions, and since this directly affects safety, repairs should be made urgently.

There are not so many malfunctions that arise with the EUR on the Priora. The first thing that occurs is the complete cessation of the amplifier. Often the disconnection of the amplifier is accompanied by the corresponding code, which is displayed on the on-board computer, although there are cases when it is possible to detect its disconnection only by experience.

Power steering for modern Lada

Several turns of the steering wheel in different directions with the engine off.
Then you need to carry out the same operation, but with the car running.
If the effort that should have been applied to the steering wheel has not changed, this means that the amplifier is not working.

The movement, of course, can be continued even when the amplifier is not working, but it is undesirable, it is necessary to repair it as soon as possible and restore its operability.

There are times when the amplifier on the Prior is turned off along with the speedometer. This is due to the speed sensor. The point is that these three elements are related. Such a scheme allows you to regulate the operation of the EUR depending on the speed limit. Repair in this case comes down to checking the performance of the speed sensor and the wiring going to it, the speedometer and the EUR. If any breaks in the commutation are found, it must be restored. And when the fault is in the sensor itself, it is simply replaced.

The electric booster can turn off due to low voltage in the Lada Priora's on-board network. This indicates that the insulation in the wiring may be damaged and that there is a short circuit or problems with the generator's performance, so it is not delivering the correct voltage. Repair consists of checking and restoring the integrity of the wiring, as well as checking and troubleshooting the generator.

Severe contamination of the contact group of the torque sensor installed on the amplifier can also cause a trip. Moreover, the on-board computer, conducting self-diagnostics of the system and identifying problems with the operation of the torque sensor due to contamination, can deliberately turn off the amplifier itself. Repair in this case comes down to removing the EUR from the car, disassembling and thoroughly cleaning the contact group.But since the operations to restore the performance of the electric booster are complex and improper assembly and installation on a car can affect the correct operation of the steering mechanism, it is advisable to contact specialists to restore the EUR.But as already mentioned, a complete shutdown of the electric power steering only leads to the fact that more effort will be needed when driving, and such a malfunction does not significantly affect safety while driving.It is much more dangerous when the electric amplifier behaves unpredictably. For some car owners, while driving, the amplifier began to work and sharply turn the car to the side, while the driver was driving on a flat road and did not influence the steering wheel. Such situations can be accompanied by jolts in the steering wheel. It turns out that at the most inopportune moment, the electric booster can knock the steering wheel out of hand and send the car either to the oncoming lane or to the side of the road.If such a malfunction occurs, it is absolutely forbidden to continue driving, otherwise, due to this breakdown, you can get into a traffic accident or fly off the road. To continue further movement, it is enough to turn off the amplifier. To do this, you need to remove the fuse responsible for the power supply of the EUR, after which you can continue driving without an amplifier.This problem is rooted in the amplifier itself. Such a malfunction may occur due to the same torque sensor. If the contact block is dirty, this sensor may not correctly perceive the data of the steering position and the speed sensor. In some cases, cleaning the contact group can restore the amplifier to work. But it is quite possible that such an operation will not bring a positive result.To eliminate the breakdown, most likely, you will have to completely replace the electric amplifier. It is not recommended to replace it in a garage. To do this, it is better to contact a specialized service station. After replacing the electric booster, it is advisable to perform adjustment work on all components of the steering mechanism.On Lada Priora cars, electric power steering is almost always offered as standard, as an additional comfort option. At the same time, the Priorovsky EUR often fails, then it can be repaired independently or with the help of specialists.Steering and braking performance play a key role in driving safety. That is why, when the slightest malfunction of these units appears, it must be urgently eliminated. On foreign-made cars, the power steering can be found since the models of the 80s, as for the domestic auto industry, the era of mechanical power steering fell in the mid-2000s. A little later, instead of the usual hydraulic amplifiers, electric amplifiers began to be installed on more modern VAZ models (starting with the later VAZ 2114-2115 models). Image - Electric power steering prior to malfunction repair by own hands

Power steering has the function of reducing the load and effort on the steering wheel when maneuvering. The main advantage of the amplifier is driving comfort due to good feedback between the driving wheels and steering during maneuvering. However, the classic power steering also has a number of disadvantages, the main one of which is the need to constantly monitor the health of the pipes and the level of fluid in the power steering reservoir. In addition, the mechanism takes part of the engine thrust, which does not always have a positive effect on the dynamic characteristics of the car.

Electric power steering is a more modern and sophisticated mechanism that allows for better steering. The EUR is easier to operate, does not require additional fluids and pipelines, does not take engine power and provides maximum comfort.However, this mechanism also has a number of disadvantages, the first of which is the insufficient amount of feedback between the roadbed and the control system. Because of this, for example, certain difficulties may arise on a snowy road, which is often noticed by the owners of VAZ Priora and other domestic models. And if foreign cars that are equipped with EUR have additional stabilization and blocking systems, then on Priora models, especially on the first versions, there are no such locks. In addition, the electric amplifier on the VAZ 2170 Priora models often fails either completely or in some component parts.

Starting in 2010, an import substitution program was launched, which also affected the car manufacturer VAZ. Electric power steering began to be supplied by the domestic plant "Avtoelektronika" from Tula instead of the German analogue of Bosch. It cannot be said that the Priora car owners did not have any difficulties with the latter, however, when the new version was put into operation, motorists increasingly began to complain about the electronic errors of the EUR control unit, which sometimes completely block the operation of the entire mechanism.Thus, if an error appears on the screen of the on-board computer (factory or built-in) that looks like a failure of the power steering system, most likely the problem is in the soldering at the joints of the electric power steering board with the main car controller. This is especially true for cars produced in 2011-2012. This problem can be solved under warranty, in which case the dealer must replace the power steering mechanism with a new one. However, if the car warranty no longer applies, it makes sense to contact competent electronics specialists (for example, those who are engaged in chip tuning) in order to carry out high-quality diagnostics of the system and, if possible, try to extend the life of the electronic microcircuit by software or mechanical means.Sometimes, even with a working microcircuit and reliable soldering, the operation of the speed sensor gets lost, since it is directly connected to the EUR and regulates the operation of the mechanism depending on the speed of movement in a specific area. Image - Electric power steering prior to malfunction repair by own hands

In such cases, on the VAZ Priora or Kalina model, as a rule, the dashboard or tachometer goes out, and the computer reports that the electric power steering has failed. The problem can be easily solved by software settings, by replacing the wiring at the junction of sensors and controllers, or by replacing the speed sensor or torque sensor with the EUR.

Another reason for the malfunction of the electric amplifier on the Priora, which does not depend on the factory defect or problems with the board and connections, is the insufficient voltage of the on-board network in the car. In this case, you should pay attention to the serviceability of the wiring and the generator using special diagnostic equipment.

It should be noted that if the electric power steering is faulty, it is not recommended to continue operating the car, although this does not affect driving performance and dynamics in any way. The fact is that over time, other steering mechanisms (rack, etc.) that are associated with it may fail, plus the appropriate comfort and safety when driving is not ensured.

The easiest way to diagnose a malfunction of the power steering on various cars, including the Lada Priora model, when the on-board computer does not give any errors, but the driver notices that the power steering works differently is a mechanical check. To do this, turn the steering wheel as much as possible in different directions with the engine on, provided that the car is stationary. If at some point with the engine running, more effort is needed, as, for example, when the engine is not running, the reason may be either a breakdown of any parts of the EUR, or a malfunction of other steering mechanisms. Image - Electric power steering prior to malfunction repair by own hands

In this case, it is necessary to carry out mechanical diagnostics, for which the car must be lifted onto a special lift and examined for serviceability of various elements of the chassis, steering rods, rack, etc. This can be done at any service station or on your own if you have certain knowledge and a lifting mechanism. Perhaps the hydraulic booster or electric booster is working and the problem lies in something completely different.

To avoid various problems with the EUR, experts recommend periodically cleaning the part and contact mechanisms from contamination. To do this, it is necessary to remove the electric amplifier, disassemble it, clean it and reinstall it. Next, we will offer detailed instructions for removing and installing the EUR for the Lada Priora model of various generations.

To remove the EUR from the Priora, you must have a set of standard and Phillips screwdrivers, 8 "and 13" wrenches with a socket head. The first step is to disconnect the negative terminal with the battery, then you will need to remove the steering wheel, as described in the operating instructions, the decorative trim under the steering wheel and the plastic trim of the instrument panel. Image - Electric power steering prior to malfunction repair by own hands

Use a Phillips screwdriver to unscrew the 4 self-tapping screws from the bottom steering wheel pad.
Pads with wires should be disconnected from the steering column switch together with a slip ring.
Using an 8 ″ wrench, unscrew the bolt, which will disconnect the wires from the ignition switch.
Press down on the plastic clips and disconnect the wiring harnesses at the top and bottom of the steering column.
At the place where the EUR is attached to the steering column, it is necessary to remove the decorative plastic curtain by pressing the clips.
Use a socket wrench to loosen the nuts securing the lower part of the steering column.

Further, you can remove the amplifier together with the intermediate shaft, however, for greater convenience during cleaning, removal and installation, it is recommended to separate these parts from each other.To remove the countershaft, use a 13 "wrench to remove the bolt that secures the countershaft cardan joints. Next, unscrew the two mounting nuts on the right and left sides and remove the steering column. After that, remove the bolt and remove the universal joint from the splined shaft of the steering gear. For convenience, during further installation, which is carried out in the reverse order, you must make sure that the special marks on the protective cover, shaft and crankcase cover are correctly located (see photo). It is necessary to clean the contact group and other parts very carefully, taking care not to damage them. Such a procedure in the service will cost about 2000-3000 rubles.Do you still think that car diagnostics is difficult? If you are reading these lines, then you have an interest in doing something yourself in the car and really savebecause you already know that:

STO lomat big money for simple computer diagnostics

To find out the error, you need to go to the specialists

Simple wrenches work in the services, but you can't find a good specialist

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Video (click to play).

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