We personally repair and change the ignition switch on a VAZ 2106

The ignition switch in cars of the VAZ family fails from time to time due to weakening of the contact posts or burning of the contacts inside it.
It also happens that the cams of a plastic roller are produced. You can disassemble the lock and clean it, but it’s better to just replace it with a new one, considering that it costs pennies compared to imported locks. But if connecting the wires together did not result in the starter operating (or it did not turn on the first time), check the solenoid relay on the starter. The contact spots on it may also burn out, which will prevent the circuit from closing normally. Alternatively, you can use a screwdriver to short-circuit the two large terminals on the solenoid relay (before doing this, put the car in neutral and use the handbrake). When closed, the starter should begin to spin vigorously. If this happens, remove and change the solenoid relay. If the starter rotates “sluggishly” when it closes, you will have to remove it and check the condition of the brushes.

All operations are performed with your own hands, without the help of car service specialists. Moreover, the price of an ignition switch on a VAZ2106 is up to 100 rubles. To replace it, you will need to know the pinout of the wires coming from it, for which the editors of the site 2 Schemes.ru have prepared a large reference material.

The ignition switch is designed not only to start the engine - it performs several functions at once:

1. supplies voltage to the vehicle’s on-board network, closing the circuits of the ignition system, lighting, sound alarm, additional devices and instruments;
2. at the driver’s command, turns on the starter to start the power plant and turns it off;
3. turns off the power to the on-board circuit, preserving the battery charge;
4. protects the car from theft by fixing the steering shaft.

Pinout of the ignition switch VAZ-2101 - VAZ-2107

The ignition switch on these cars is located to the left of the steering column. It is fixed directly to it using two fixing bolts. The entire mechanism of the device, except for the upper part in which the keyhole is located, is hidden by a plastic casing.

On the visible part of the ignition switch housing, special marks are applied in a certain order, allowing inexperienced drivers to navigate the lock activation mode when the key is in the hole:

• “” – a mark indicating that all systems, devices and instruments that can be turned on using the lock are turned off (this does not include the cigarette lighter, interior lighting, brake light, and in some cases the radio);
• “ I ” is a mark informing that the vehicle’s on-board network is powered from the battery. In this position, the key is fixed independently, and electricity is supplied to the ignition system, to the electric motors of the heater and windshield washer, instrumentation, headlights and light signaling;
• “ II ” – engine start mark. It indicates that voltage is applied to the starter. The key does not lock in this position. If you release it, it will return to the "I" position. This is done so as not to subject the starter to unnecessary loads;
• “ III ” – parking mark. If you remove the key from the ignition in this position, the steering column will be locked with a latch. It can only be unlocked by inserting the key back and turning it to position “0” or “I”.

The ignition switch has five contacts and, accordingly, five terminals, which are responsible for supplying voltage to the desired unit. All of them are numbered for convenience. Each pin corresponds to a wire of a certain color:

• “50” – output responsible for supplying current to the starter (red or purple wire);
• “15” – terminal through which voltage is supplied to the ignition system, to the electric motors of the heater, washer, and instrument panel (double blue wire with a black stripe);
• “30” and “30/1” – constant “plus” (pink and brown wires, respectively);
• “INT” – external lighting and light signaling (double black wire).

Checking the results of the work

Having finished installing the lock, you need to make sure that all elements in the car are working without interruption. We connect the battery. If operation is correct, the vehicle systems must be de-energized when the key is inserted into the zero position. In the first position, power begins to flow to the system that controls the internal combustion engine, generator unit, headlights, signals, washer and glass cleaner, lifts and control devices. After moving to the second sector, voltage is supplied to the systems listed above and the starter device is started. If the lock is installed and working correctly, the anti-theft locking rod extends and retracts when the key is switched from the “zero” position to the first position and back.

In a word, there are no difficulties in such work. All operations are performed with your own hands, without the help of car service specialists. Moreover, the price of an ignition switch for a VAZ 2106 ranges from twenty to thirty rubles, and you shouldn’t chase inexpensive fakes!

Pinout of lock VAZ-2108, VAZ-2109, VAZ-21099

Pinout according to the old type

Pinout of the VAZ-2109 ignition switch with unloading relay:

1. comes +12V in position I, II, III (parking)
2. comes +12V in position I, II, III (parking)
3. comes +12V in position III (parking)
4. position I, +12V goes out after turning on the ignition (contact 15/2), disappears at start (II);
5. position I, +12V goes to the starter (pin 50);
6. position I, +12V goes away after turning on the ignition (pin 15), does not disappear when starting II;
7. +12V comes from the battery (pin 30);
8. comes +12V constantly.

New pinout type

Pinout of the new VAZ-2109 ignition switch:

1. comes +12V constantly
2. comes +12V constantly
3. +12V arrives after turning on the ignition (pin 15), does not disappear when starting II;
4. +12V arrives after turning on the ignition (contact 15/2), disappears at start (II);
5. position I, +12V goes to the starter (pin 50);
6. +12V arrives after turning on the ignition (pin 15), does not disappear when starting II;
7. +12V comes from the battery (pin 30);
8. comes +12V constantly.

Mechanical part

Often, mechanical failure of the ignition switch is provoked by:

• tight turning of the ignition key;
• jamming in one of the positions. As a rule, such a problem leads to a broken ignition key, which, in turn, requires additional expenses for purchasing a new part.

Basically, these problems arise due to poor assembly of the ignition switch from unscrupulous manufacturers. So that the product does not have to be changed frequently, you need to install a reliable and durable part.

Pinout of lock VAZ-2110, VAZ-2111, VAZ-2112

Pinout of the ignition switch VAZ-2110:

1. comes +12V for the microphone of the sensor of the inserted key;
2. the mass comes when the driver's door is open;
3. +12V goes to the starter (pin 50);
4. +12V goes out after turning on the ignition (pin 15);
5. +12V goes out when the key is inserted to pin 5 of the BSK;
6. comes +12V to illuminate the lock cylinder;
7. +12V comes from the battery (pin 30);
8. not used.

Useful: VAZ dashboard pinout

Electrical part

Even if the mechanical part of the ignition switch is fully operational, the terminal block still often fails. You can always replace it, since such a spare part is sold in any car store.

The terminal part often burns out itself or its contacts, which connect certain power supply circuits, burn out. It also happens that the central plastic insert melts, which opens and closes some contacts at different positions of the ignition key. This overheating is provoked by holding the key in the “starter” position for a long time, when the driver cannot start the engine of his vehicle for a long time.

In such cases, it is necessary to purchase a new terminal block, not an ignition switch.

It is very important that the connection remains unchanged. If you are replacing for the first time, you need to look at the bottom of the ignition switch and there draw the colors of the wire and the terminals to which they are connected. Each of them on the block has its own number, so it is very convenient to write down the wire color and terminal number so as not to confuse anything.

Pinout of lock VAZ-2113, VAZ-2114, VAZ-2115

Pinout of the ignition switch VAZ-2113, 2114, 2115:

1. comes +12V for the microphone of the sensor of the inserted key;
2. the mass comes when the driver's door is open;
3. +12V goes to the starter (pin 50);
4. +12V goes out after turning on the ignition (pin 15);
5. +12V goes out when the key is inserted to pin 5 of the BSK;
6. comes +12V to illuminate the lock cylinder;
7. +12V comes from the battery (pin 30);
8. not used.

Troubleshooting methods

Before replacing, repairing and installing a new protection device, we suggest learning in more detail about several ways to solve the problem:

1. Removing and replacing the device with a new one. Many car owners change their car parts because they don’t want to do their own repairs and waste their time and effort on it. Sometimes this approach is actually worthwhile if the problem is serious.
2. Disassemble the device and identify failed elements, and then replace them. As a rule, the cause of the malfunction lies in problems in the operation of the contact group. Before connecting a new group, you need to take into account the color pinout of the contacts; it is important to follow it.

If you change the lock, then keep in mind that you will also need to change the cylinder in the door lock, as well as in the luggage compartment lock . Otherwise, the key will not be able to open the trunk and doors (author of the video channel Region 4253).

The structure of a car ignition switch

1. Locking rod
2. Frame
3. Roller
4. Contact disc
5. Contact sleeve
6. Block
7. Protrusion of the contact part.

The lock mechanism is connected to many wires. They continue from the battery, connecting all the electrical devices of the car into a single chain. When you turn the ignition key, the electrical circuit is closed from the “-” terminal of the battery to the ignition coil. As a result, the current passes through the wires to the ignition switch, through its contacts it is directed to the induction coil, after which it returns back to the “+” terminal. As electricity passes through the coil, it generates high voltage, which it transmits to the spark plug. Therefore, the key closes the contacts of the ignition circuit, thereby starting the car engine.

Replacing the contact group

Sometimes there is no need to completely change the lock mechanism. It is enough just to change the contact group.

It is located on the back of the mechanism. Attached to the body with a spring ring. You can try to remove it by hand or using a screwdriver.

We film the group itself. It consists of two plastic rings that have built-in current-carrying tracks. There is a spring inside the ring.

Over time, carbon deposits form on these tracks, which leads to failure. There is no point in messing around with this soot. It's easier to buy a new group in the store. Its cost for a VAZ 2106 does not exceed 50 rubles.

Please note that there are different models. On some, the starter contact is attached so that when you turn the key, the contact bends. This leads to quick breakdowns. It is better to choose a model on which the contact is rigidly installed.

Installing a new part is easy. Alternately move the wires from the previous part, choosing the correct contacts. Place the key in the zero position, turn the top of the group to the left until it stops and insert it into the lock. Make sure that the blade inside the body fits into a special groove. Snap and slide on the snap ring.

Procedure for replacing the lock

1. Loosen the fastening bolt and remove the negative terminal. Bolt securing the terminal with a ten-key turnkey.
2. From below, unscrew the four screws securing the steering column casings.

• After unscrewing the screws, remove the upper and lower casing.
• Remove the rubber seal that fits onto the lock body.
  Disconnect the wires from the contact group.

  Unscrew the two screws securing the lock using a Phillips screwdriver.

  Using a small flat screwdriver or an awl, press the lock stopper and at the same time pull it towards you from the seat.

  Installation of the VAZ 2106 ignition switch is performed in the reverse order:

  1. Insert the new ignition switch into the seat and push it until it clicks.

  Tighten the two mounting screws using a Phillips screwdriver.

• Connect the wires to the group of contacts. If you don’t remember which wire goes where, use the diagram presented at the beginning of the article.
• Connect the terminal and check the functionality of the lock.
• Install the rubber seal under the steering casings.

Engine start button

Many owners of “classics” install a button to make starting the engine more convenient. The button is connected to the starter power circuit, into the gap in the red wire which is connected to pin 50 on the lock. The engine is started according to the following algorithm:

1. The key in the lock is set to position one.
2. Turn on the starter by pressing the button.
3. As soon as the engine starts, the button is released and movement begins.
4. In order to stop the engine, you need to turn the key to position zero.