For the first time, the Russian auto industry installed electric power steering on the Lada Kalina. At the first stages, it worked extremely unstably, up to a complete shutdown. Later, they tried to eliminate the shortcomings, but the EUR remained a weak link and periodically fails, as evidenced by the exclamation mark on the panel. This is evidenced by the feeling of a heavy steering wheel, and turning with one hand becomes difficult.
The principle of operation of the electric booster is to reduce the force that needs to be applied when turning the steering wheel. The Kalina electric power steering control unit uses sensors to calculate the operation of the electric motor at the current speed and torque. Thereby giving a signal of the effort with which the driver needs to be helped when turning. After all, it does not work constantly and needs adjustment, which is carried out by the block.
EUR malfunctions and their diagnosis
Despite the simplicity of the design of the unit we are considering, if the need for repair arises, it is difficult to carry out; there are different malfunctions and the methods of elimination are often complex. An important “aggravating” circumstance is the poor location of the mechanism. The manufacturer placed this module directly under the radiator of the LADA Kalina interior heating circuit.
Operation in cold weather has a temperature effect on the electric power steering. Over time, this factor causes malfunctions in the amplifier. This phenomenon is very common for Lada Kalina. If a unit fails, the driver immediately feels it becomes more difficult to control the car at low speeds. The most common factors leading to electrical amplifier malfunctions can be grouped into the following areas:
- the speed sensor “does not respond” and does not send signals to the ECU;
- the on-board network “suffers” from low voltage;
- the maximum speed has exceeded the permissible limit;
- The control module has become unusable.
The identified malfunctions and solutions will be discussed below. When the ignition is turned on, the ECU independently diagnoses the amplifier system for possible failures and malfunctions.
If there is no signal from any of the sensors, the on-board controller automatically identifies this sensor as faulty, and the corresponding lamp on the display on the front panel of the cabin immediately lights up.
This indicator looks like a steering wheel with an exclamation mark and is highlighted in orange.
The instructions supplied by the factory to the LADA Kalina car require immediate repairs if a malfunction is detected in the electric power steering mechanism, especially when the power is turned off. In such a situation, the driver should drive to the service center at low speed.
Practice shows that this development of events does not always take place. An orange symbol on the dashboard may not indicate the need for repair procedures. It indicates the presence of a problem in one of the structural components of the system. Sometimes failures can occur in the supply circuit or one of the sensors has failed.
These situations do not in any way affect the functionality of the node, and control control remains active.
If the steering wheel, after the indicated symbol is illuminated, has lost sensitivity, then a malfunction of this kind is considered quite dangerous, since it interferes with the normal functioning of the mechanism as a whole; it is also bad when the amplifier is turned off. Such problems arise quite often and really require urgent intervention.
Ignoring this state of affairs may be associated with dire consequences for the LADA Kalina car. In order to quickly respond to a problem that has arisen, we quickly remove the fuse located in the panel block on the left side of the steering wheel. This measure prevents further damage to the electrical amplification system, since it completely deactivates it.
You can go to the repair site, but you will need to apply more force to the steering wheel, because the amplifier is no longer functioning.
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Location of contacts on the blocks
Block X1: 1. “Plus” from the battery (12V); 2. “Minus” from the battery. Block X2: 1. Ignition switch (“plus” from the terminal); 2. Signal input (tachometer); 3. Signal input (speed sensor); 4. Output (EMURU status indicator); 5. K-line output (diagnostic block); 6. L-line output (free); 7. General (mass); 8. Technological output (free). Block X3: motor phases: A. (1 and 2) – phase A; B. (1 and 2) – B; C. (1 and 2) – C. Block X4: torque sensor ESD “Kalina”: 1. Common wire 1; 2. General 2; 3. Power contact; 4. Output 1; 5. Output 2; 6. Frequency signal input terminal. Block X5: rotor position sensor: 1. General; 2. Phase A output; 3. Phase B output; 4. Phase C output; 5. Power (+ 5V). The electromechanical power steering installed on the Kalina can operate in the following modes: • Self-test • Compensation • Failure • Ready
EUR malfunctions on a Lada Kalina car and how to eliminate them - auto repairman
» Power steering » What malfunctions threaten the power steering on Kalina and what are the ways to eliminate them?
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Why does the electric power steering on the Lada Kalina not work or turn off, for what reasons does the steering wheel with the power steering knock, jam and bite? To repair the system yourself, you need to know how diagnostics are carried out and what causes precede the breakdown. Most often, the failure of the amplifier is caused by a breakdown of the unit itself. Problems of this type are resolved by thoroughly checking the system to identify the exact problem.
As practice shows, the inoperability of the electric booster is often associated with a breakdown of the speed controller, since this sensor ensures activation and deactivation of the electric power steering in different driving modes.
The amplifier on Kalina works if the car is moving at low speed.
When the speed begins to increase, the booster automatically turns off, allowing for safer machine control when driving at high speeds.
So, briefly about the reasons for the inoperability of the EUR:
- The speed controller has failed or the control unit does not receive a signal from it. In this case, the reason may lie in either a breakdown of the sensor, damaged wiring, or poor contact of the controller with the on-board network.
- The voltage in the vehicle's electrical network has decreased. The reasons can be different, ranging from a dead battery and an inoperative generator to the use of inappropriate electrical equipment in the car.
- The permissible crankshaft speed has been exceeded.
- Incorrect operation or failure of the control module. Depending on the cause, the control unit may need to be repaired; more detailed diagnostics need to be done.
How to tighten the electric power steering rack?
The appearance of a knocking sound in the operation of the electric power steering is associated with the need to tighten the steering rack.
How to do it right:
- First you need to disconnect the battery; to do this, disconnect the terminals from it. Unscrew the battery mount; to do this, you need to unscrew two more nuts located at the edges. After this, the battery is removed and put aside.
- Then you need to lift the plastic stand, there are four more screws under it, they can also be unscrewed.
- Having done this, it is necessary to move this stand forward until the platform is disconnected from the air filter housing retainer pad. After this, the trim can be moved back, this will provide freer access to the rail itself.
- At the next stage, you will need to crawl your hand under the rail. Directly below it, as shown in the photo, there is a rubberized cap; it will need to be removed, this will allow the key to access the adjusting nut.
- To perform adjustment work, you will need a special wrench to tighten the rack; without it, the adjustment procedure will not be possible. Using this wrench, you need to crawl under the car rail to install the tool in the required hole.
- When adjusting, be careful not to overtighten the rack. If its tightening is very strong, then when cornering the rack will bite, and this, in turn, may affect the safety of movement. The angle of adjustment is always different, it depends on how much the nut is loose, but usually when performing such work the nut is tightened by approximately 30 degrees. This should be enough to get everything right. After the adjustment is completed, it will be necessary to check that this task was performed correctly. That is, you will need to make sure that the steering wheel turns normally to any position all the way and there is no knocking. If the knock remains, then the adjustment continues.
Photo gallery “Adjusting the steering rack”
1. Slide the stand and detach it.
2. In this place under the rail there is an adjusting washer.
3. Adjustment is made with a special key.
4. Location of the adjusting nut.
About qualified electric amplifier replacement
If there is a need to replace the mechanism when the ESD does not work, we recommend contacting experienced technicians. When the car is under warranty, the most rational measure would be to contact the dealer network to resolve the problem.
There are situations that do not allow you to resort to these two methods of eliminating an amplifier malfunction. Then the only solution will be to manually replace the mechanism that has become unusable.
Let us immediately make a reservation that the replacement process if the EUR does not work is characterized by sufficient complexity. To carry it out successfully, you will need experience and the possession of special tools. Unqualified replacement actions can aggravate the scale of the breakdown, which will entail a significant waste of money on more expensive repairs in service conditions.
Before the actual replacement procedure, we recommend that you carefully study the entire list of features and actions if the ESD does not work. Here you will need to delve into the connection diagram of the unit, which will avoid damage to the electrical components of the mechanism.
To remove the amplifier, partial disassembly of the front panel of the Lada Kalina is necessary. After this, the device itself must be disconnected from the entire list of supply wires. Sometimes owners repair the electric power steering, avoiding the need to replace it with a new unit. As a rule, after a complex of restoration work, standard devices work no worse than their new counterparts.
A common malfunction is the occurrence of a knock that clearly comes to the driver from under the panel or the amplifier turns off. This phenomenon may be accompanied by a characteristic squeak that occurs during rotational actions with the LADA Kalina steering wheel. This situation is usually solved by using a special lubricant. If such an action does not bring the expected result, then a more detailed diagnosis of the amplification mechanism will be required.
To install the electric power steering in the seat of the Lada Kalina, you will need to be attentive and patient. All cable connectors must be tightly seated, and the device itself must be firmly secured. Only after this can you proceed to the reassembly of the previously dismantled front panel components.
Let's sum it up
In a modern car, which can also be considered the Lada Kalina, most systems are equipped with sensors with the help of which the on-board module carries out control. If the check light is on, this indicates that a certain type of malfunction has occurred. The cause is found using a diagnostic device. Sometimes the problem when the check light is on requires the connection of more complex scanning equipment to identify the breakdown. In any case, to prevent malfunctions, it is necessary to perform regular diagnostic inspections, which will avoid premature failure of expensive components. Answering the question of how to reset a check, the answer is obvious: it is necessary to diagnose the malfunction and eliminate it.
Malfunctions in the operation of the electric power steering on viburnum and their elimination
Electric power steering is a device designed to provide more comfortable driving. Not so long ago, domestically produced cars began to be equipped with amplifiers. ESD in a Lada Kalina car - what are its malfunctions, what are they, and what are the most effective solutions? Read about it below.
One of the main reasons why the electric power steering on Kalina may turn off is a breakdown of the device itself. When the ignition is turned on, the system automatically performs diagnostics, which subsequently fails. As a result, the electric power steering does not work due to its own shutdown, which undoubtedly negatively affects the comfort when driving the car.
New Lada: Kalina ignition switch: how to remove, install and use it
Repairing the electric power steering can be quite expensive, so if the Kalina is still under warranty, it makes sense to have your power steering repaired at the dealer. In the event that the system has completely failed, you must first turn off the power. In this case, the engine torque will be received by the steering element (rack), bypassing the amplifier.
Another reason why the electric booster does not work is the failure of the speed sensor, which is responsible for the operation of the system in various driving modes. The power steering operates at full power only when driving at minimum speed.
When the vehicle accelerates, the force that the system creates on the rack decreases, and this is what the speed controller is responsible for.
Do-it-yourself EUR repair involves replacing the sensor yourself; the cost of such an element today is not high.
If a speed sensor directly connected to the speedometer breaks down, then the unit that controls the power steering receives incorrect data.
The system automatically turns off, at this moment a diode indicator appears on the control panel, which informs the driver about a malfunction of the device. To avoid the need to repair the amplifier, it is enough to carry out diagnostics in time with a paper clip.
Thanks to diagnostics, the motorist will be able to find out about all the problems that are present in various mechanisms and transport components.
Let's summarize this point - for what reasons does the electric amplifier refuse to work:
- There is no signal from the speed sensor. The problem may be either a regulator failure or a wiring fault.
- Very low voltage level in the car wiring. It is necessary to measure the voltage and solve the problem.
- The permissible engine speed has been exceeded.
- The control unit has failed. Repair will solve the problem, but usually if the unit breaks down, it has to be replaced.
Debriefing
The electronic control unit (ECU) for the electric power steering is mounted in a bad place, under the heater radiator
. Any leakage of this part causes the ECU to get wet, after which you will feel that the power steering is not working and the steering wheel has become heavy.
If while driving you notice that the tachometer or speedometer needle is at zero and does not move, rest assured that the ESD of your car is not working. This happens because these devices and (EUR) are activated from the same sensors.
Most often on Kalina, the speed sensor fails. Buying a new sensor and replacing it solves this problem. There are very often cases when replacing sensors does not help, (the electric power steering) still does not work. Begin to methodically probe the entire chain of wires related to the system (EUR).
Due to the constant vibration of the car and poor quality of production, connecting plugs and blocks independently break electrical circuits at the most inopportune moment.
Kalina's power steering behaves poorly during on-board voltage fluctuations
. If an old generator produces less than 30 volts instead of 15 volts, then the electronic control unit of the power steering may also refuse to work.
If you broke down on the way
In recent years, the production of Lada Kalina cars (ECU) of domestic production was replaced with Korean ones. The kind they put on Hyundai cars. After that, power steering failures became significantly less frequent. But they started installing Korean blocks
. And how many thousands of Kalinas travel all over the roads, with old electronics?
Our advice to you is, at the first opportunity, change the electronic control unit on your car to a modern one, you will be healthier.
Electric power steering for modern cars has already become an integral part of them. On the Russian market it was first installed on the Lada Kalina ( VAZ 1118 ). The electric booster added both a lot of positive emotions and a lot of negative ones. Failure of this unit occurs quite often on the first samples. Our guest today was no exception - a car from the Lada Kalina family (Fig. 1).
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After the necessary repair of the electric power steering or its replacement, it is necessary to assemble the steering column, which is done in the reverse order. First, we install the lower hinge on the gear shaft and connect the steering column shaft to the intermediate driveshaft.
Next, remove the nut and bolt that tightens the intermediate shaft, and separate the upper and lower hinges. After installing the lower hinge in place, turn the steering shaft until the bolt hole in the upper hinge and the lower part of the shaft coincide.
We connect the hinges and tighten them together using a bolt. We connect the tire and wire blocks to the fasteners, and then install all the removed elements: steering column switches, ignition switch, and lastly, install the steering wheel cover and panels.
Thus, you can change the non-working electric power steering unit of the Lada Kalina yourself without any particular difficulties in a garage or auto repair shop. This will make driving more comfortable.
