Message Ivan71 May 18, 2010 6:24 pm
Message Curly May 18, 2010 6:56 pm
When asked, “When was the last time you had sex?"
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.
