Designed ignition module VAZ-2110 for supplying a high voltage to candles. This is one of the most important elements, its failure disrupts the operation of the engine. With the help of this device the signal coming from the electronic control unit increases — a voltage of about 30 kV. Due to the fact that the ignition module is located in the engine compartment and constantly exposed to heat, dust and water, it crashes. The most vulnerable nodes — that semiconductor elements.
If you are familiar with automotive systems, you will be able to draw Parallels between the high voltage coil and the ignition module VAZ-2110. Malfunction of this device are shown in the same way. In fact, it is the symbiosis of the high-voltage coil and switch. The design includes the following:
1. For generating high voltage impulses required for igniting the combustible mixture with the help of candles, there are two coils.
2. Dual channel switch of electrically conductive elements.
The Device can fail unexpectedly. Despite the fact that the car has self-diagnostic system, the warning light on the dashboard Check Engine will not light. Usually goes down one of the channels of the switch, it manifests itself in unstable work of the engine, sometimes it stop.
If there is at least a small knowledge of electronics and a multimeter, you can diagnose and isolate the problem. Check the ignition module VAZ-2110 will take a little time, but will save you from acquiring expensive host. Please note that sometimes there are races that disappear with time.
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In the microcontroller of the error will remain, so they can be considered by means of special testers. But as practice shows, at the moment when faults do not manifest themselves, the tester is unable to identify the error codes that were previously, but then disappeared. A very common cause of crashes is getting dirt on the contacts, poor fastener housing, absence of mass, the presence of electrical noise.
To perform a repair of the ignition module VAZ-2110, it must be removed. First check whether there is high voltage on all pins. The most common failure is the lack of spark in the second and third cylinders. If you lightly press the rear part of the housing, the motor can start working in normal mode. But not for long. To withdraw you should:
1. To disconnect ground from battery.
2. Dismantle the decorative cap covering the head of the unit, if any.
3. Remove all high-voltage wires.
4. To disconnect all the wires going to the ignition module. White rings indicate the numbering of all wires. On the device there is a designation of numbers of cylinders.
5. Disconnect the connector from the device.
6. Unscrew three mounting nuts.
That was it, the ignition module VAZ-2110 is cleared and you can proceed to its repair.
Opening the aluminum plate, you will find a small size circuit Board, which are the active ingredients. It is covered with transparent silicone. It would need to be removed as it will interfere with the repairs. Pay attention to those wires, which connect Board and connector pins. They are aluminum, and this metal is exposed to destruction much faster than copper. All these wires need to be replaced. Some motorists involved in repair of modules, use the wires that are used in mice for personal computers. But they need to prilovchitsya to work - they are covered with paint.
In General, the scheme of the module is simple, it contains:
1. Two transistor BU931 (you can use a domestic analogue КТ848А, shows well, and is much cheaper).
2. Two switch SGS-THOMSON (model L497D1).
Before working with the module, you must purchase flux for aluminum. When replacing the transistors will note that to the manifold insights are very difficult to solder the wires as they are covered with a special material. And he complicates soldering. To facilitate his work, carefully unpack the coating. Try not to overheat the item. Place it on a plate of aluminium that it took all the heat. Otherwise, the semiconductor transition will collapse and you'll ruin an expensive item.
When soldering the wires, pay attention to their length as short as possible. All the soldering points have to varnish, you can even Polish. After the repair, always check the ignition module VAZ-2110. If it works in normal mode then you need to handle everything inside autoerotica. This will ensure maximum tightness of node – it can't get any water or dust. And last this product for many years. But if the problem lies not in the contacts or a power transistor, it is better to abandon the idea of repair and to buy a new module – the VAZ-2110, it costs about 1500 rubles.
Article in other languages:
AR: https://tostpost.com/ar/cars/20846-vaz-2110.html
DE: https://tostpost.com/de/autos/38038-z-ndmodul-vaz-2110-diagnose-und-reparatur-von-den-hnden.html
HI: https://tostpost.com/hi/cars/21335-2110.html
JA: https://tostpost.com/ja/cars/20481-vaz-2110.html
TR: https://tostpost.com/tr/arabalar/35313-mod-l-ate-leme-vaz-2110-tan-ve-onar-m-elleriyle.html
Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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