Is it possible to repair a broken switch (VAZ-2109)?

Most often, motorists who have discovered a malfunction of such a detail as the ignition switch, simply throw it away and go to the store to buy a new one. In part this is correct, since replacing a new part is a significant saving of free time. But at the same time do not forget that such an action entails a money waste. And why not repair this part yourself, especially if the fault came only one part of it? In this article, we will give an example of how the VAZ-2109 switch is being repaired, and tell you what functions it performs.

Part details

The cars of Volga manufacture, including the "nine", are equipped with an expanded ignition system, which includes a switchboard. VAZ-2109 differs from its "sisters" more powerful spare parts in this industry. They have a productive transistor, and the parameters of the pulses are regulated by means of a low-current integrated system. Thus, the ignition system VAZ-2109 differs from other machines for the better.

Principle of operation

This part is operated as follows: on its input is fed a Hall sensor signal (it is located near the ignition distributor), from which our part receives all the data about the position of the crankshaft and how many revolutions the engine can make. Looking at its tasks, we can say that the switch VAZ-2109 plays an important role in the movement of the car. But despite this value, this part sometimes comes in a malfunction. And then there is just a problem in the repair.

Troubleshooting and troubleshooting

Depending on how much this spare part has worn out, there are three types of engine behavior.

The first case: the motor is successfully started, but its speed constantly jumps. It should be noted that this is a very serious case, and only a complete replacement of the switch can eliminate the trouble. If, after installing the new part, the problem does not go away, the Hall sensor is most likely to be defective . In this case, your broken switch can work for a long time, provided that the element is replaced. A new part can be stored in reserve in his garage.

The second case: the engine works, but after a few seconds it stalls (and after two or three minutes it starts up again and stalls again). This indicates that it's time to check the state of the electronic components that are part of this part. If the switch cabinet is heated to 50-60 degrees Celsius, it is necessary to replace the transistors.

And the third case occurs when the engine does not start at all. It is best to begin the diagnostics with the Hall sensor, which monitors the voltage in the network.

note

After the engine began to work with interruptions, do not blame the whole VAZ-2109 switch. Start searching for a hot spot in the wiring of the contact connections, in the generator and in the voltage regulator. If the above-mentioned details are correct, then start working with the switch, because similar reasons (the motor does not start) can arise due to poor wiring.