But sometimes a different situation happens, a pebble got into the sensor, which disabled it. In such cases, the repair of the parking sensor is no longer possible, it only needs to be changed.
If there are metallized plates on the machine, then the presence of any external damage will indicate a complete failure and the need to replace them.
How do I replace a sensor or plate? Simple enough. You should buy a device suitable in size and technical parameters in a spare parts store and install it in place of the broken ones. If the sensor is different in color from what it was, then it is quite simple to fix it, it should be repainted.
Sometimes the sensors start to work for no reason, signaling the presence of non-existent obstacles - the cause of the malfunction may be associated with contamination, sticking of sensors or metallized plates. If you have sensors, then you should clean them of dirt and snow, if there is moisture, then remove it. In the event that plates are installed, then it is better to remove them, because water and dirt can accumulate not only on the surface, but also under them. After that, the bumper must be washed and dried. Only then can dry and clean plates be put back.
If the parking sensors do not work after washing or in severe frost, then the problem may lie in the wiring, more precisely, in the connections that get wet.Drying out the sensors and wiring connections will help here too.
In order for the parking radar to serve for a long time and you do not have to puzzle over why it does not work, how to fix it, it is very important to take care not only of its correct installation, but also to be careful during operation.
VIDEO
Periodically check the sensors and the control unit for dirt and liquid and remove it in time. If instead of sensors there are metallized tapes, then it is necessary to check the presence of moisture and dirt under them as well.
It is also important to strictly follow the instructions during the installation and operation of the acoustic parking system. After installation, you need to configure it correctly.
Accurate adherence to the instructions, proper care of the system will contribute to trouble-free operation of the parking radar for many years.
After a breakdown of the PDC (parking sensors) system, I decided to make a photo report on the restoration of the parking sensors themselves.
What we need:
The reason for the breakdown of the sensor lies in the breakage of a thin wiring in the case, apparently over time from the emitted impulse it tears or blows in the event of an accident, etc.
1) The case will have to be half, in the last photo you can see the latches that need to be carefully unclenched (preferably in warmth) in my case all 4p are broken, but this is okay, since in the future it is advisable to glue everything together with rubber glue, for example, for shoes, pouring everything and everything in the cavity of the microcircuit and the impulse head as it was in the original before parsing and try to leave visible wiring as much as possible, to which we will be powered in the future to create less work, but if we chop everything off at the root, the sensor will not be killed (assumption)
2) We remove the tip from the plastic case and remove the sealing rubber, then we see the impulse aluminum tip as in the first photo, if it is possible to solder the wires to the wires (see point 4) I could not solder to such stubs
3) One wire must be soldered to the bottom of the head, the second to the body, where the blue stub is visible.
4) Finally we got to the sensor, having visually examined it, I realized that there was not enough thin wiring, we begin to dig deeper. I got to the bottom of the microcircuit here, things are worse in terms of loosening the intestines, for the place of porous rubber, as described above, it is filled with rubber tightly! An awl to help and began to dig millimeter by millimeter, the blue wire was initially visible, but I cut the thin one at the root with a clerical knife when I started cleaning the area
5) It is not necessary to dig deeply only up to two designated contacts, to which we will dock (see point 3), the right blue contact comes from the head body, the left one is now white (the very thin wire) is soldered from the bottom of the head.
6) Now everything is in a heap, but in order to start gluing we check for
ZY Everything about everything took a couple of hours with removing, and poking a soldering iron
Z.YY. If you don't have a soldering iron, you can prepare everything for someone to solder.
comtvset »15 Sep 2009, 14:49
PaulArchyer »17 Sep 2009, 10:57
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PaulArchyer »18 Sep 2009, 12:13
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/ loXmaTblé »18 Sep 2009, 12:25
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PaulArchyer »18 Sep 2009, 12:26
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flavor »18 Sep 2009, 13:28
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/ loXmaTblé »18 Sep 2009, 14:07
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PaulArchyer »18 Sep 2009, 15:47
Do you want me to sell your worker with an exchange for my non-worker, or just take a non-worker?
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cook "13 Oct 2009, 15:33
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PaulArchyer »16 Oct 2009, 13:00
one or several of them may be defective.
I would buy myself but not for $ 50 - as it is sold everywhere
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Fly "October 19, 2009, 14:43
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PaulArchyer "October 19, 2009, 17:22
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Fly "20 Oct 2009, 13:26
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/ italy »Oct 21, 2009 11:51 am
1) When you turn on the reverse gear, the parking sensors should squeak briefly. If the system is faulty - when you first turn it on, there is a long squeak, then it does not beep at all until the ignition is turned off. The reasons may be not only in the sensors, only VAG-KOM will specifically say. There were cases when the wire lay on the muffler pipe, melted and closed the wires between themselves and on the pipe itself.
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cook "Oct 21, 2009 20:47
1) When you turn on the reverse gear, the parking sensors should squeak briefly. If the system is faulty - when you first turn it on, there is a long squeak, then it does not beep at all until the ignition is turned off. The reasons may be not only in the sensors, only VAG-KOM will specifically say. There were cases when the wire lay on the muffler pipe, melted and closed the wires between themselves and on the pipe itself.
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Sektant "Oct 27, 2009 10:52 am
I had one sensor flew .. I put it from A6 .. And there are no problems ..
ZYY it is easy to identify a non-working parking sensor ..When one of the sensors flew to me, the squeak became thinner .. Quite differently .. It alarmed me .. I climbed up the wagon and it showed which one does not work .. And I also know that when you touch the sensor with your finger and in complete silence if you put your ear to it, you can distinguish between working and non-working .. But I don’t remember whether the transmission was on or not ..
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DimaA4 »03 Nov 2009, 19:50
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Message Vladl 07-03-07, 09:25
If anyone has a desire to practice repairing them, I still have two non-working ones left! I can give
By the way, there are four more pressure sensors with dead batteries. Maybe there are craftsmen who repaired them, inserted new batteries?
Many modern cars are equipped with special parking sensors that can fail. We will tell you how to check the parking sensor in our material. Some motorists today cannot even imagine parking a car without this useful additional system. Even a schoolboy can park a car with parking sensors, and we are not exaggerating.
The variety of forms and types of parking sensors make these devices very popular. Structurally, these systems are easily installed even by those people who are at least a little familiar with electronics. Of course, we are not talking about top-end models with numerous bells and whistles, but about simple parking sensors. In some cases, the device fails, like all other devices in the modern world. We will tell you below how to identify the malfunction and eliminate it.
There are different ways to check parking sensors, from the simplest ones to connecting a special PC for search. Depends on the severity of the damage.
Engineers note that if you come close to the device, it should make a click when it is in good working order. You can also bring the phone with the voice recorder turned on, and then listen to the recording - you will clearly hear a click on it if it happens.
Before that, you just have to turn the key to the "start" position, release the handbrake and engage reverse gear. As you can imagine, all this will take you no more than a few minutes.
Depending on the type of device, you need to turn on the neutral, release the handbrake and start the car. Run your fingers over the parking sensors in the front and rear. In working order, they should vibrate slightly. Note that not all types of parking sensors react this way to touch.
So, if you feel vibration, everything is good. Otherwise, it is better to carry out additional diagnostics.
There is specialized equipment called "VAG". We will not describe it, since the mechanism is structurally very complex and is intended for use by professionals.
If you want to try to fix the parking sensors on your car yourself, you should know the main causes of malfunctions:
mechanical damage due to impact or accident;
manufacturing defects;
the consequences of the climatic conditions in which the car was operated;
problems with electrical wiring.
Of course, we have listed only a general list of problems.So, first you have to dismantle the faulty sensor and buy it from the market or from a car dealership instead. Immediately, we note that the sensors are not sold by the piece, since it is simply unprofitable for sellers, so be sure to buy the minimum quantity - three pieces.
Stop the car engine, remove the positive terminal of the battery to prevent a short circuit and overload the system. Remove the old sensors and replace them with new ones, connecting all the wires. Install the terminal and test the device.
It should be noted right away that some manufacturers paint the sensors in the color of the car, so when replacing sensors, be prepared to go to a service for painting or drive like this. There is no difference in work, but sensors of different color spoil the whole view.
So, you now know how parking sensors are checked and what may be required for this.
The principle of operation of the parking sensors is very simple. The car has built-in sensors that are triggered when approaching other cars. When the sensor is triggered, the driver is immediately notified of this by a sound signal, which increases depending on the distance between objects, as well as a graphic image on the screen. Due to this, the driver has the opportunity to stop in time in case of a dangerous approach to the object in order to change the direction of movement.
At the moment, ultrasonic and electromagnetic parking sensors are actively used, which differ in their principle of operation. In Russia and the CIS countries, ultrasonic versions of the system are more common, which can be of two types - wired and wireless.
It is worth noting that ultrasonic parking systems can be either wired, that is, the interaction between the elements of the system occurs directly using wires, or wireless. The wired option is more common and reliable.
Please note: Recently, the development of parking sensors has stepped forward. Nowadays, parking radars are often part of a car's all-round vision system, which allows the driver to even better monitor the presence of foreign objects around the car when parking.
As you can see from the parktronic design described above, such a radar is a very simple device that consists of a minimum number of components. Accordingly, there cannot be many reasons for the malfunction of the parking sensors. You can name the following main reasons why parking sensors do not work:
The above are the main reasons why parking sensors do not work. As you can see, they are quite commonplace and do not differ much from the causes of malfunction of other electronic equipment in a car.
The task of parking sensors is to detect the presence of an obstacle in front or behind the car, and inform the driver about it. If the system does not do this, or it does it with errors, you should understand the reason in order to fully use it in the future.
If the parking sensors have recently been installed on the car, and immediately it does not work correctly, most likely the reason for this is a factory defect or improper fastening and connection of system elements, which must be checked.
In a situation where a previously functioning parking sensor stopped working, the first step should be to pay attention to whether this is due to the pollution of the sensors, which is a very common problem. Examine the sensors for dust and dirt. It is better to clean them immediately upon inspection to exclude the possibility of their malfunctioning due to contamination.
Important: When cleaning the sensors, pay attention not only directly to their sensors, but also to the attachment points, and also carefully see that the devices were securely fastened.
When cleaning the sensors does not work, you need to make sure that they work at all. Determining the performance of a sensor is very simple:
Start the car engine at idle speed;
Bring your finger to each of the sensors in turn. The working sensor should vibrate or crack slightly. If this does not happen, then the sensor is out of order and needs to be replaced or repaired.
The complexity of sensor repair depends on the cause of its failure. Some problems can be fixed by yourself, some can be solved by wizards in service centers.
Please note: The cost of parking sensors can vary greatly, and the advisability of repairing the sensor by specialists will differ from that. It is often more profitable to simply replace the device with a new one.
Quite often, the parktronic sensor fails due to water ingress into it. This can be overlooked when visually inspecting the device, so the first thing to do when repairing a faulty sensor is to remove it from the car. Next, dry the sensor, reconnect it to the wires and check the operation. If the situation has not changed, the problem is most likely more serious. Try to disassemble the sensor and inspect the inside of the membrane for damage. If damaged, the membrane will need to be replaced. It is important to note that it is better to entrust such work to the specialists of service centers.
If the parktronic sensor is faulty and you need to replace it, it is extremely simple to do this. It is enough to disconnect the old sensor from the wires and install a new one, securely fixing it in the existing place. But here it is important to note a few nuances:
If you purchased a non-native sensor, most likely it will differ in color and stand out in the exterior of the car.But the design of the sensor is such that it is quite possible to repaint it by applying a thin layer of paint over the body. Do not forget to degrease the surface before applying the paint.
The parktronic control unit is the least likely to fail, but a similar problem may nevertheless arise, which means that you need to consider how to diagnose the device. There are two methods of checking the device - visual inspection and short circuit diagnostics:
A short circuit test is carried out using an ohmmeter. - a device for measuring resistance. Get one and connect the probes of the device to the terminals of the control unit. If a short circuit occurs in the "brain" of the parking sensors, the ohmmeter will not show anything, that is, its arrow will be at zero or infinity.It is important to note that the parking sensors control unit is practically indestructible, let alone independent. If it has a short circuit or burned out elements, most likely, it will be necessary to replace the entire "brain".
The likelihood of damage to the car when driving in a confined space depends on the correct operation of the parking sensors. Accordingly, it is important to follow simple rules in order to always be sure that the system is working properly:
If you have an electromagnetic parktronic installed, then check the tape for contamination and defects. It is important to note that the tape should be completely cleaned from dirt - from the inside and outside. Do not forget to regularly remove and inspect it;
From time to time, clean the control unit from dust, but do it carefully so as not to damage the components of the printed circuit board of the device.
Video (click to play).
It should be remembered that in many respects the correct operation of the parking sensors depends on its correct installation. Make sure that the sensors do not "dangle", and in case of damage to the bumper, be sure to diagnose them to make sure that they are not damaged.
