Ignition switch wires VAZ 2107 injector

Photos of the ignition switch on a VAZ 2107 (injection)

The ignition switch of the VAZ-2107 has 4 positions:

III (parking position) - initial position of the key. Only in this position can the ignition key be inserted and removed. In this position, the following operate: windshield wiper, heater, exterior lighting. Be careful - in this position, all electrical appliances are powered by the battery (since the engine is turned off), therefore, prolonged operation of electrical appliances in this position will quickly discharge the battery!

0 - in this position all electrical appliances are turned off.

I (ignition) - In this key position, all position III circuits are turned on + ignition system, generator excitation, control devices, turn signal. Be careful - in this position of the key with the engine not running, the ignition coil can quickly fail.

II (starter) - in this position all circuits of position I + starter are turned on. Be careful - it is highly not recommended to install the key in this position while the engine is running - you can damage the starter.

Positions III, 0, I are fixed. In position II, the key must be held in the ignition switch.

The ignition switch is one of the main elements of the electrical control system. With its help, the VAZ 2107 starts the engine, turns on the lights, wipers, heater, heated rear window, etc. Any malfunction of the lock makes further operation of the car impossible. However, most problems can be solved quite easily on your own.

Ignition switch VAZ 2107

The ignition switch (IZ) of the VAZ 2107 is an electromechanical type device. It is located under the dashboard and is attached to a bracket welded to the left side of the steering column shaft.

Purpose of the ignition switch

The main function of the protection system is to synchronize electrical systems when starting and operating the vehicle. When you turn the key in the lock, current begins to flow to the starter solenoid relay, to the ignition system, to instrumentation and lighting devices, heater, etc. When the ignition switch is turned off, most of the electrical equipment is completely de-energized, protecting the battery from discharge. At the same time, the anti-theft mechanism is activated, blocking the steering wheel at the slightest turn.

The key in the ZZ VAZ 2107 can occupy four positions, three of which are fixed:

0 — “Disabled.” Electrical wiring is de-energized. The key cannot be removed from the lock; the anti-theft mechanism is disabled.
I - “Ignition”. The engine spark system, generator excitation, instrumentation, exterior lighting, windshield wiper blades, heater and turn signals are included. The key cannot be removed from the lock; the anti-theft mechanism is disabled.
II - “Starter”. Current is supplied to the starter. The position of the key is not fixed, so it must be forcibly held in this position. It cannot be removed from the lock.
III - "Parking". Everything is turned off except the sound signal, side lights, windshield wiper blades and interior heating stove. When the key is removed from the lock, the anti-theft mechanism is activated. When turning the steering wheel in any direction, it will be locked. To confirm the locking, a sound signal will be heard - a click. To disable the anti-theft system, you need to insert the key into the lock, set it to position “0” and smoothly turn the steering wheel in any direction until it unlocks.

When descending a Zhiguli from a mountain or driving at neutral speed, you must not turn off the engine and remove the key from the lock. Such actions will lead to jamming of the steering wheel and the creation of an emergency situation on the road due to difficulties in controlling the car.

Ignition switch connection diagram

On the new VAZ 2107, all the wires going to the ignition switch are collected into one plastic chip, which is not difficult to connect. To disable the lock, you simply need to remove this chip. If the wires are placed on the contacts separately, the connection should be made according to the following scheme:

the red wire (starter) is connected to pin 50;
to pin 15 - double blue wire with a black stripe (ignition, heater, instruments on the front panel, heated rear window);
to pin 30 - pink wire (battery plus);
to pin 30/1 - brown wire (battery plus);
to the INT contact - black wire (dimensions, rear brake lights and headlights).

Diagnosis of ignition switch faults

The ignition switch of the VAZ 2107 is quite reliable in operation and usually fails only due to the exhaustion of its service life. ZZ malfunctions can be mechanical and electrical.

The key in the lock is stuck or won't turn

Sometimes the key in the 3Z turns with difficulty or does not turn at all. This is usually associated with a lack of lubrication in the lock cylinder - the movable disk with the plates begins to jam. Also, the cause of this situation may be damage to the working part of the key. The problem can be temporarily solved by pouring water-repellent WD-40 into the lock and replacing the faulty key with a new one. However, after some time the lock will still have to be changed.

A breakdown of the mechanical part of the ignition switch forces many Zhiguli owners to change it entirely, since the cost of the complete lock is not much different from the price of its secret part.

Devices do not turn on

If electrical appliances do not start working when you turn the key, this may be due to burnt contacts due to loose contact with each other. The situation can be corrected by cleaning all contacts with sandpaper, and the connection point of the pink wire going to contact 30 from the positive terminal of the battery should be tightened with pliers.

The starter does not turn

If the starter does not spin when the ignition is turned on, the reason for this is most often a burnt out or loose fit of the contact pair responsible for the operation of the starting device. This can be checked using a multimeter, and corrected by replacing the mechanism responsible for distributing current in the lock. The contact group can be changed without dismantling the CB. Before doing this, it is recommended to check the functionality of the starter relay with a multimeter.

How to repair a car

How to properly connect high-voltage wires with a detailed connection diagram

Reasons for replacing the ignition switch on a VAZ 2101, VAZ 2104, VAZ 2105, VAZ 2106, VAZ 2107, VAZ 2109, VAZ 2110, VAZ 2114:

· The ignition switch is broken (the ignition key gets jammed when turning, the key turns with difficulty or does not turn at all). In this case, some experts advise spraying WD-40 , but, as a rule, this does not give much result, and if it does, it is a temporary result, then all that remains is to replace the ignition switch. Although there are exceptions.

· The contact group has burned out (this means the contacts on the chip, it happens that they burn out) In this case, difficulties arise in starting the starter.

The ignition system is designed to create and supply a spark discharge to the spark plugs.

It is better to carry out this type of check with an assistant. To check the contact group of the ignition switch, you should use a “control”. We connect one end of the “control” to the battery negative, and the other to the starter solenoid relay. Well, as mentioned earlier in the article, you will need the help of a friend to turn the ignition key all the way. And at this time, keep an eye on the “control” lamp, which should light up. If the lamp does not light up, therefore, the command from the ignition switch is not given. This indicates that the contact group needs to be replaced, but many motorists prefer to replace the ignition switch assembly.

But it doesn’t matter whether your ignition switch or its contact group is broken, you will still have to remove the ignition switch

Ignition switch removal tool:

· Screwdrivers (phillips and small);

Surprisingly, this is all the tool you need to replace the ignition switch on a VAZ 2101, VAZ 2104, VAZ 2105, VAZ 2106, VAZ 2107, VAZ 2109, VAZ 2110, VAZ 2114.

Which ignition switch should I buy?

Every motorist thinks about their quality before purchasing spare parts. The quality of the ignition switch depends on the manufacturer. If you need to buy an ignition switch, I can recommend leading manufacturers DAAZ, the Auto-Garant company. In short, we go to the car market and ask the seller for an ignition switch or contact group made in Russia. Don’t be fooled by a cheap product; it’s better to overpay 10 rubles than to suffer later.

How to replace the ignition switch on a VAZ 2101, VAZ 2104, VAZ 2105, VAZ 2106, VAZ 2107, VAZ 2109, VAZ 2110, VAZ 2114.

· Remove the negative terminal from the battery;

· Fix the ignition key in the zero position.

· Remove the steering column cover (by unscrewing 5 screws).

· Remove the ignition switch (by unscrewing the 2 fastening screws).

· Use a thin screwdriver to press the latch and pull out the ignition switch towards you.

· Remove the chip and wires from the ignition switch.

· We change the lock to a new one, rearrange the wires to the new ignition switch.

How to replace the ignition switch contact group on a VAZ 2101, VAZ 2104, VAZ 2105, VAZ 2106, VAZ 2107, VAZ 2109, VAZ 2110, VAZ 2114.

We carry out the same operations as when replacing the ignition switch, only after removing it, pry off the retaining ring and remove the contact group and the rod on the ignition switch secret.

After this, it is enough to simply connect the wires to the ignition switch correctly using the VAZ ignition switch connection diagram.

After this, all that remains is to correctly connect the wires to the ignition switch.

Why won't the engine start?

Repair of ignition switch VAZ 2107

Removing the ignition switch of a VAZ 2107 is quite simple. To do this you only need:

Procedure for removing the ignition switch

To remove the ignition switch, you need to perform a number of steps in the following order:

Disconnect the negative terminal from the battery.
Unscrew the screws securing the lower steering column casing and remove it.

Video: replacing the ignition switch of a VAZ 2107

Disassembling the ignition switch

In case of failure of the contact group, which is not repaired but replaced entirely, it can be easily removed from the lock body. The procedure is as follows:

Use a screwdriver or an awl to pry up the locking ring and remove the contact mechanism.

Assembling and installing the ignition switch is carried out in the reverse order.

Video: disassembling the ignition switch of a VAZ 2107 and replacing the contact group

Choosing a new lock

The ignition switch device is the same for all classic VAZ models. However, cars manufactured before 1986 were equipped with locks with seven contacts, and after 1986 - with six. For the VAZ 2107, any lock for classic Zhiguli cars with six contact pins is suitable.

Replacement process

After diagnosis, we proceed to removal and replacement.

Required Tools

If a breakdown is detected in the lock, you will need to prepare the following tools for disassembly:

flat screwdriver;
crosshead screwdriver;
awl.

Removing the ignition switch

All elements of the mechanism are connected to each other using ordinary bolts, which can be removed without the use of brute physical force. The procedure for removing the old lock is as follows:

We disconnect the battery so as not to accidentally short the wires during operation.
Insert the key into the lock and turn it 90 degrees. In this position, the steering shaft will be blocked and will not interfere with dismantling. Before disassembling the device, turn the key in the ignition switch 90 degrees
To remove the plastic casing, unscrew the 5 bolts that connect the upper and lower parts.
Carefully remove both parts of the casing. After unscrewing the bolts, both parts of the casing can be easily removed from the bracket
Unscrew the two screws that hold the lock. They are located on either side of the switch.
To remove the ignition switch, you need to unscrew the two mounting bolts
Disconnect the wires from the ignition contact group.
Insert an awl into the flat hole on the bracket and press the latch to move the latch. Remove the fastening bolt and use an awl to press the lock through the flat hole.
We pry the mechanism with a flat screwdriver and remove it from the bracket. After removing the bolts and pressing the lock, the ignition switch can be easily pulled out

Checking and repairing the contact group, installing and connecting a new lock

If you decide to replace only the contact group, you will need to remove the ring with a flat screwdriver - and the part will come off. When installing new contacts, it is necessary to place the groove on the secret part so that a slight engagement occurs. After that, we clamp everything with a spring ring. Installing a new lock proceeds as follows:

Insert the key and turn it to the “0” mark.
We clamp the latch and at the same time insert the switch into the bracket.
We connect the wires according to the diagram. We connect the wires by color, as indicated in the diagram
We install the two parts of the casing and fasten them with bolts.

Advice! When connecting contacts, it is important to use the correct diagram. If you connect different poles, the wiring may short out, which will lead to damage to electrical appliances.

Installing the "Start" button

Some car enthusiasts install a separate button in the car in a convenient place to start the engine. It is connected to the starter circuit by breaking the red wire going to terminal 50 on the ignition switch. The car is started as follows:

The key is inserted into the ignition switch.
The key is turned to position "I".
Pressing the button turns on the starter.
After the engine starts, the button is released.

In this case, you can turn off the engine only by turning the key in the opposite direction.

In order to use a button to stop the motor, that is, to turn it into a “Start-Stop” button, you need to use two additional relays:

headlight relay RS 711;
starter relay 113.3747–10 or 90.3747–10.

When you press the button, current from the battery goes to the headlight relay, closing its contacts, and then to the starter. When the engine starts, the button is released, opening the contacts of the starter relay and breaking its circuit. However, the positive wire remains connected through the headlight relay for some time. When you press the button again, the headlight relay contacts open, breaking the ignition circuit, and the engine stops. To delay the activation of the starter, an additional transistor is included in the circuit.

Thus, even a novice car enthusiast can replace the ignition switch of a VAZ 2107. To do this, you need a minimum set of tools and following the recommendations of specialists. Particular attention should be paid to the correct connection of the wires to the lock contacts.

To control the electrical system of the VAZ 2107, the ignition switch is used. The quality of operation of the entire on-board system depends on its condition. If the VAZ-2107 ignition switch circuit fails, this will have a negative impact on many electrical appliances connected to the network.

Lock device

The integrated module is a cylindrical design that has a side projection for the integrated steering clamp. When the locking pin is switched to closed mode, this option becomes part of the anti-theft system. The lock prevents the steering wheel from turning.

The two ends of the cylindrical product are functional, therefore, on one side the wiring diagram is connected to the VAZ-2107 ignition switch, and on the other side there is a cylinder for the key. Additional protection is the uniqueness of the “secret”, which requires the use of an original key/lock pair to prevent unauthorized access to the vehicle’s electrical system.

The engineers composed the 3Z from two main elements, one of which is the switching mechanism, and the second is the contact board.

Critical faults can occur in both parts. However, most of them are considered beyond repair. Restoration work mainly involves replacing damaged elements. It is also practiced to completely replace the assembly.

Replacing the lock cylinder itself or the contact group

Read

Replacing the VAZ 2109 lock cylinders requires the following tools:

In case of any breakdown, it is not necessary to completely replace the lock; if the cause of the malfunction lies in replaceable parts, then a partial repair of the lock is carried out and replacing the lock cylinders on the VAZ 2109 makes sense when the key stops spinning freely in the keyhole. Another option for partial repair is to replace the contact group; this requires a minimum of tools and little understanding of the device.

Our summary will help you understand the device:

Nothing and no one forbids you to change the entire lock every time, and even go to a service station if you are satisfied with the price
After removing the casing, access to the switch lock is revealed.
In principle, the lock cylinder can already be removed at this step
Therefore, we pull out the side pin that holds it in the lock
This is easy to do with a narrow screwdriver (clockwise) while tapping it with a small hammer
If the pin cannot be pulled out this way, then try to carefully drill out the cylinder using a narrow drill
If it is more convenient for you to pull it out first, pull out the ignition switch, before you start replacing the cylinder, to do this you need to unscrew the bolts securing the ignition switch to the control column
This must be done using a hammer and chisel because these bolts have sheared heads.
You need to loosen them a little with a chisel, and then unscrew them with pliers, as in the photo below

Potential problems

Possible troubles are often related to the mechanical part. They are manifested in the following factors:

the key fits tightly into the “secret”;
it is not possible to make a turn the first time;
It is problematic to remove the key from the cylinder, etc.

If you ignore such signals, it may result in breakdown. As a result, you will have to spend money on restoring the mechanism or replacing it.

In some cases, the use of special chemicals may help. One of them is WD-40 fluid. Brake fluid can replace it, which also helps delay repairs for a while.

In addition to mechanical breakdowns, motorists have problems with the electrical part . They manifest themselves in burning contacts or breaking the circuit. It is believed that the most vulnerable pinout of the VAZ-2107 ignition switch is at the starter connection terminals. In such a situation, no operation occurs either on the first attempt to turn, or on subsequent attempts.

Every motorist can test the functionality of the contacts independently by measuring the voltage on the contacts with a multimeter or voltmeter.

When faults are detected in the contact group, a complete replacement of the lock is not always required. It is enough to replace the electrical part of the lock even without completely dismantling the cylinder.

In what cases and how should the lock be replaced?

It needs to be changed if:

The key bit gets stuck when turning it or when installing it in the cylinder. Some VAZ-2107 owners do not immediately change the central locking. Instead, either a new key is made or the lock is washed with a special liquid. But these are only temporary measures, because if the lock already has a fault, replacing it is inevitable.
If the anti-theft rod jams in any of the positions.
The starter or electrical circuits do not turn on. In this case, the breakdown consists of a faulty or burnt contact part of the wire.

In order to remove the ignition switch in a VAZ-2107, you must have:

thin screwdriver;
awl/knitting needle;
slotted and Phillips screwdrivers.

Stages of dismantling the central lock:

The first step is to turn off the power to the vehicle's on-board network. This is done simply, all you need to do is remove the battery terminal.
Next, the key must be set to the “zero” position.
The next step is to remove the steering wheel cover. It is secured with screws that need to be unscrewed.
The screws that secure the lock body are unscrewed. They are located to the left and right of it. Here you will need an awl or a thin screwdriver. First, the latch is pressed out, then the lock itself is removed.
Finally, the plug/wires from the lock are disconnected.
Its contacts are replaced or repaired.

Checking and replacing the contact group is carried out as follows:

First, the spring ring is removed, which holds the group together in the lock body. To do this, you need to pry it off with a thin screwdriver.
Next, the old contacts are retrieved.
New ones are being installed. During installation, you must ensure that the groove of the contact group coincides with the rotary rod on the secret part of the central lock.

Factory pinout

According to established tradition, drivers are forced to insert the key into the “secret” located on the left side. Such design features may cause some inconvenience for some motorists who have switched from foreign cars to domestic “classics”.

The VAZ 2107 ignition switch circuit used in a car, an injector under the hood or a carburetor, will be similar. The unit is secured with two bolts to the steering column. The mechanism of the device is hidden under the plastic casing.

Each rotation angle involves the activation of certain electrical consumers connected to the on-board network. Before connecting the ignition switch to the VAZ-2107, you need to familiarize yourself with the marks located alternately around the cylinder:

the starting position determines the inclusion of most systems and electrical consumers, which most often include “stops” located in the rear lights, interior lighting lamp, cigarette lighter contacts, and sometimes the radio is switched to this mode;
“I” – second position; continuing to move to battery-dependent marks, demonstrates the inclusion of windshield washers, heaters, measuring instruments and control indicators, head optics, etc.;
“II” – starting the power plant through the starter has its own peculiarities, since if the key is not forcibly held in this position, it will spring back to its previous position on its own, which allows minimizing any load on the electric motor;
“III” is a parking position used by motorists when it is necessary to lock the column with latches, so when it is activated, the driver removes the key from the “secret”.

Video “Visual instructions for replacement”

Detailed instructions for replacing the ZZ on the “seven” are presented in the video below (the author of the video is In Sandro’s garage).

Schematic electrical diagrams, connecting devices and pinouts of connectors

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:

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

Color gradation

To correctly connect the contacts on the back side, you need to know the colors of the wires. Each of the chips comes with a cable with insulation of a personal shade. We recommend focusing on the diagram:

pin 50 – contacts the red wire connected to the starter;
pin 30 – pink contact;
pin 30/1 – brown cable;
pin 15 – blue with a dark stripe is in contact with the heater, ignition, etc.;
INT pin – black cable, responsible for starting the head optics and operating the dimensions.

After all the wiring is connected, we can reconnect the battery terminals and check the functionality. We start the ignition in each position one by one, testing the performance of the devices.