July 29, 2015 Lada.Online 307 262 183
Owners of Lada Priora have to periodically deal with malfunctions of power windows (ESP). In some cases, the problem lies in some small detail that can be easily fixed with your own hands; in other cases, you will have to contact a service center to repair the ESP. We decided to look into the main reasons why power windows do not work.
Possible breakdowns
The window regulator on the Priora does not work and this is due to a number of reasons, the essence of which we will look into in detail. So, a passenger car VAZ-2170 Priora can be equipped by the manufacturer with electric windows for:
- Two front doors
. As a rule, the two rear doors are equipped with manual rack-and-pinion lifts (window lifters are installed separately on them); - On all four doors.
Depending on the type, devices of the cable and rack operating principle are distinguished. By type, there are faults associated with the electrical and mechanical parts.
The most common mechanical failures include:
- “Licking” of teeth on the gear of the lifting mechanism;
- Defects in the cable mechanism that led to its damage or excessive stretching, which subsequently causes it to jump off the guide rollers.
As we see, there are few mechanical reasons and they are extremely rare.
Electrical defects
If it happens that all four window regulators fail, then the reason must initially be sought in fuse number F31
, which is located in the central power supply control unit. The manufacturer placed the fuse and relay mounting block under the steering rack. So getting there and checking the condition will not be difficult for any driver, even an inexperienced one.
You just need to open the plastic panel under the steering wheel and perform a visual inspection to find the damaged (burnt out) mechanism.
If you have problems opening the rear doors using the control buttons that are located on the door compartments, but the windows are driven by the central control unit, then we begin to look for the reason in a mechanism called the rear window switch. Often the mechanism randomly blocks the current supply, as a result of which the glass does not move.
Diagnostics are carried out
using a tester. If the product does not pass current, then it should be replaced with a working one, since it cannot be repaired. The cost of the device is low, so there will be no big expenses.
Next breakdown option
when one window regulator is faulty and cannot be moved using the central control unit. First of all, we test the mechanism on the corresponding doorway. If there are no complaints about the operation of the relay button, then we look for the cause in the head power supply, otherwise we replace the faulty relay. We finally check the entire system for serviceability.
In addition, a possible breakdown could be trivial mechanical damage to the electrical wire, as people say, it has become frayed. It can be eliminated by twisting or soldering the two ends of the wire, followed by mandatory insulation for safety purposes.
Now, as for the electric motor itself, the cause of the breakdown may be, and, as a rule, it is, significant wear of the commutator brushes
(freezing). Such freezing occurs due to the fact that the part is structurally made of plastic and, due to heating, can be deformed and modified.
The brush becomes motionless or inactive and is not able to perform its functions in full. Another reason why the power window on the Priora does not work. As you can see, you can eliminate the cause of the breakdown yourself, without having the proper experience, everything is quite simple and clear.
What is the cause of the problem
Sometimes there is no malfunction as such. For example, window regulators may fail in severe frost, but other electrics also suffer from similar problems. Therefore, experts advise not to save on buying/renting and heating a garage. But mechanical failures are much more common.
If you suspect a breakdown, you first need to check the TsBKE - this is AvtoVAZ’s personal innovation, which operates the electrical package. First you need to make sure the fuse is working. If everything is fine, we disassemble the doors, arm ourselves with a multimeter and measure the voltage at the terminals of the window lift motor. If there is no voltage, then:
- There may be a malfunction of the power window control unit (the button for opening and closing the window located on the door).
- The problem lies in the connection of the wire connectors.
- CBKE refused.
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If there is voltage in the network, which is clearly shown by a multimeter or a 12V light bulb, then the problems described above automatically disappear. This means you need to look for the problem elsewhere. Most likely, it lies in the following system nodes:
- The window lift motor is stuck or stuck.
- The window lift cable has already outlived its usefulness and needs to be replaced.
- Distortion of the glass itself, while the rest of the system is in full working order.
All of the above breakdowns occur with approximately equal frequency, with the exception of glass distortion, which occurs much less frequently.
Self-detecting a broken power window can be seriously difficult. First, it is difficult to diagnose a CBCE problem. The device is designed in such a way that one of the cables is multifunctional. It could be:
- X1-4.
- X1-6.
The essence of multifunctionality lies in the fact that some conductors are capable of independently changing polarity if the appropriate command is received from the CBKE. These pairs can simultaneously control side mirrors, central locking, provide power, etc.
Why does the Priora window lifter not work?
Window lifter failure may occur due to a malfunction of the following systems:
The window lift motor has its own wear life; if it is exceeded, the mechanism fails, and the motor itself must be replaced.
If everything is fine with the motor, but the lifts still do not work, then the cause of the breakdown may be an electrical circuit or damaged wires.
"Priors" window lifter block
The car's safety unit contains a component responsible for the car's window regulators. If it fails, the mechanism stops functioning.
The Priora window control buttons can also cause a malfunction. This mainly occurs due to oxidation of the button contacts.
Situations also arise when the functioning of the Priora windows is quite unstable. For example, they can only work when the ignition is on or they work partially. It may be that the front ones function normally, but the rear windows on the Priora do not work. Then, most likely, the problem lies in the car's electronics.
Components of the window lift system
What should I do if the right one does not work or both electronic devices fail? The window regulators may break, leaving them unable to lower or raise the windows. It is possible that the electronic device is jamming or sticking, but before you repair and disassemble the system yourself, you need to understand its structure. The unit itself works by controlling electric motors installed in the vehicle doors and designed to raise and lower the windows.
The system itself includes the following components:
- electric motors;
- switches located in the doors;
- wiring;
- glass
General structure of the ED system
Causes of failure
Priora window lifts break down due to the car being in conditions of regular low temperatures for a long time, problems with the electronic control unit, failure of fuses, wear of the motor and other lift components, as well as skewed glass.
Before carrying out repairs, it is necessary to diagnose those car systems in which the cause of the breakdown of this element may be hidden. Diagnostics are best carried out using tools and devices, for example, a tester will allow you to understand whether voltage is supplied to the window lift motor.
Once the cause of the problem has been identified, repairs can begin.
Troubleshooting control buttons
A fairly common malfunction is the failure of the window lift control buttons. Most often, the Priora power window buttons become oxidized, or their contacts begin to come off. To eliminate faults of this kind, you will need to clean the contacts from oxide or re-solder the buttons. When re-soldering, the contacts will fit snugly against each other, thereby ensuring uninterrupted operation of the power window.
Troubleshooting
Minor breakdowns include glass rattling, noise in the window lifter, free movement of glass under mechanical influence (for example, the glass does not rise or fall with the lifter, but the same can be done by hand). Their cause is skewed glass, failure of rollers or cables. If the glass is skewed, it must be adjusted. If the cable is broken, it must be replaced. If the cable comes off the rollers, you need to pull it back and adjust the car window regulator. The occurrence of noise is a sign that the mechanism is poorly lubricated. To eliminate the malfunction, you need to thoroughly lubricate all the power window mechanisms, as well as the glass guides. If the mechanism operates slowly, it should also be lubricated or replaced with a new one. Over time, the speed of lowering and raising the windows decreases due to wear and tear on the window lift motor.
Why don't the rear windows go all the way down?
In standard vehicle configurations, the front windows always go lower than the rear windows. This is done for the safety of passengers, because children usually ride in the rear seats. If you pay attention to the cars of traffic police officers, you will notice that their rear windows practically do not roll down - these are also precautionary measures in case of transporting detainees.
The window regulator settings can be changed to make the window go lower or higher. To find out how to set up the window regulator in your car, read the manual.
Malfunctions requiring repair at a car service center
The cause of window lift failure can be not only mechanical, but also electronic faults. This includes a breakdown of the car’s central electronics unit. If it fails, independent repair of this unit is impossible. A complete diagnosis and troubleshooting is required in a specialized service center.
The thing is that the CBKE has a number of multifunctional wires, which at the same time are responsible for the functioning of the central locking, turn signals, electric heated windows and mirrors. Trying to eliminate the electronic cause of a broken window lift can only make the problem worse.
Repair of window motor and components
One of the main reasons for the breakdown of the Priora window lifter may be a breakdown of the motor and wear of the electric window lift cable.
You can replace both the cable and the motor. When replacing the motor, you will need to tighten the cable; this procedure is quite difficult and takes a lot of time and effort. The window lift mechanism can also be purchased assembled, along with the motor. This design was popularly nicknamed “trapezoid” for its characteristic shape. When purchasing a complete mechanism, all that remains is to install it in place of the failed one.
Results
The Lada Priora car is reliable and unpretentious. However, the power windows of this model often fail. Perhaps the matter lies in the imperfection of the mechanism, perhaps in the harsh operating conditions of the vehicle. These include low and high temperatures, high intensity of use, problems with CBKE.
If the window regulator breaks down, you need to immediately repair it. Repair work begins with diagnostics, which is carried out using a number of instruments. If diagnostics at home is not possible, then you should contact a car service.
A number of breakdowns can be repaired yourself. Such breakdowns include mechanical malfunctions of the window regulator, for example, a broken motor or a broken cable. Often, the glass lift is unstable due to poorly lubricated surfaces. If the window lifts operate separately, then most likely the problem lies in the electronics. If such problems arise, you should contact a specialist. Self-repair of car electronic systems is impossible.
Of course, electric window lifts are superior to mechanical ones, mainly due to practicality. However, electric lifts fail much more often. For their stable operation, it is necessary to follow the recommendations of the car manufacturer and regularly carry out technical inspections of the vehicle.
Modern window regulators are part of the car's electronics. Manual devices have long been a thing of the past; today, electric designs are used. Despite their convenience and practicality, they are considered less reliable than mechanical ones, which means they fail more often.
Any owner of a Lada Priora may sooner or later notice that the window regulator on his car does not work. Front and rear devices have approximately equal chances of failure. However, if your window regulator stops working, the problem must be corrected, because otherwise you will not be able to open or close the window. Some problems can be solved on your own, and in some cases you will have to contact a service center. Today we’ll talk about why the window regulator on the Lada Priora does not work and how to solve the problem.
Let's understand the scheme
Before you begin diagnosing a power window malfunction, you first need to familiarize yourself with the features of the vehicle's electrical circuit. If you can master it, there will be no special problems with making a diagnosis. To do this, you will have to find the car's owner's manual; there are separate wiring diagrams for the driver, passenger and rear doors. To diagnose a malfunction, you will need to know the location and connection of the following elements:
- Control block;
- central locking;
- turn signals;
- mirrors;
- blocks to the rear wiring harness, as well as to the speaker;
- window lift motor.
All described elements are indicated in the basic diagram. Why is all this needed? So that you do not mix up the connections and avoid confusion with the car’s electronics. Sometimes there are situations in which, for example, an inexperienced car enthusiast connects the right window regulator to the left side and vice versa.
After you understand the circuit, you can proceed directly to identifying the malfunction and fixing it, if you can do it yourself.
Why doesn't the driver's window go down?
In automatic mode, the driver's window should go all the way down. Failures may occur if you installed a new double-glazed window, or an accident occurred and the window in the car stopped going down. You can try to program the window regulator manually in the following way:
- ♦ Start the car.
- ♦ Raise the glass with the button all the way to the top.
- ♦ Do not release the button for 5–7 seconds.
- ♦ Lower the window all the way.
After these manipulations, the automatic window mode should be restored. If the window still goes halfway down and up, a full adjustment is necessary. This usually requires removing the lift motor and connecting the switch to the wiring. The exact instructions depend on the specific car and are contained in the manual.
