The alarm was designed to protect, not just cars. Regardless of where the installation is, the alarm design is similar. It provides a microprocessor control unit that is connected to the signal input device and the sensors. In addition to these items, there is a device that controls the power on and off of the alarm. Defective failure can occur in both a log and an alarm control block.
The most vulnerable are peripheral devices with mechanical parts-door trailers, locks, or a button of the beam to which it is operated.
Before you start to panic with a car that has closed and does not open, you need to run a series of tests, which are usually described in the device's instructions.
alarms are not very attentive or untimely service of the device
Theoretically, problems can arise anywhere, but practically, given the quality of modern electronic knots, "failure" is often only the negligence of the owner, who did not replace, for example, the battery in the control chain.
Common causes of signalling failure
There are several typical reasons for the unexpected failure of the alarm, and all of them may ultimately be attributed to the consequences of not too attentive or untimely service to be taken care of by the owner himself. Sometimes, however, it does not happen for reasons beyond its control.
The alarm does not respond to the key chain and does not show signs of life
Refusal of components under the influence of strong radiation from the side. Since the alarm unit is assembled from standard parts, it is necessary to understand that it is not protected from external radiation, which may cause interference in the alarm system and even disable the microprocessor base of the electronic unit.
It is true that the power of radiation in the city is rare, so that the failure to do so is usually characterized by the disappearance of the program's block (the so-called firmware), where the alarm goes off. This is usually handled by a call from a car service technician who has set the alarm and reupholstery.
Failure of the unit when the body is impacted, provided that the impact sensor is present
This failure generally represents the effect of an untrained installation and the setting up of an alarm. The impact sensor is to be configured and not always correctly executed. If the alarm is good but the bodywork does not respond, it may be necessary to reconfigure.
Too often and unreasonably activated
The incorrect operation can be caused by the same impact sensor that is configured to be too sensitive. In this case the alarm works even with gusts of wind which it takes to hit the body. In this case, the sensitivity of the sensor is also required.
The alarm doesn't respond to the shabby.
First of all, you should check the power source for the keychain. If the battery is good, you must ensure that the buttons do not fall and click inside contacts inside the enclosure. If the battery is in the order and mechanical failure of the buttons, you need to buy a new keychain and, by contacting the installer, "prescribe" it in the program that controls the action of the alarm.
It works, but the doors don't open.
If the block is properly operated, it is necessary to find a place to lose the signal between it and the electromagnetic actuator, and if the wires are "to call" a multimeter, the drive should be replaced. If the whole electro-drive is working and actuates an alternating current from an alternative source, it is necessary to deal with an alarm unit that may not give the correct impulse to close the doors.
The alarm goes off and puts the car on the guard, but the siren does not signal
The sirens may not be current. In that case, you should search for the location of the drop in the transaction.
Not every motorist may be able to find the cause of the malfunction. If you understand that your knowledge is missing, better contact the service that was involved in setting the alarm.
