Most often, motorists who find a malfunction of a part such as an ignition switch simply throw it away and go to the store to buy a new one. This is partly correct, since replacing a part with a new one is a significant saving in free time. But at the same time, do not forget that such an action entails monetary waste. And why not repair this part yourself, especially if only one part of it malfunctions? 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 Feature
Volga-made cars, including the Nine, are equipped with an expanded ignition system, which includes a switch. VAZ-2109 differs from its “sisters” in more powerful spare parts in the industry. They have a powerful transistor, and the parameters of the pulses are regulated using a low-current integrated system. Thus, the VAZ-2109 ignition system is different from other cars for the better.
Principle of operation
This part is actuated as follows: a Hall sensor signal (located near the ignition distributor) is supplied at its input, from which our part receives all the data on the position of the crankshaft and how many revolutions the engine can make. Looking at his tasks, we can say that the VAZ-2109 switch plays a crucial role in the movement of the car. But despite this value, this part sometimes malfunctions. And then there is a problem in the repair.
Troubleshooting and troubleshooting
Depending on how much this part has worn out, there are three types of engine behavior.
The first case: the engine starts successfully, but its speed is constantly racing. It is worth noting that this is a very serious case, and only a complete replacement of the switch can eliminate the trouble. If after installing a new part the problems did not go away, most likely the Hall sensor is faulty . In this case, your broken switch can work for a long time, provided that the item is replaced. A new part can be stored in reserve in your garage.
The second case: the engine runs, but after a few seconds stalls (and after two or three minutes it starts up again and stalls again). This suggests that it is time to check the status of the electronic elements that are part of this part. If the switch case heats up to 50-60 degrees Celsius during operation, the transistors must be replaced.
And the third case arises when the engine does not start at all. Here it is best to start the diagnosis with a Hall sensor, which monitors the voltage in the network.
note
After the engine began to work intermittently, you do not need to blame the VAZ-2109 switch for everything. Start the search for the source in the wiring of the contact connections, in the generator and in the voltage regulator. If the above details are working, only then start working with the switch, because similar reasons (the engine does not start) can also occur due to poor wiring.