Assembling the contact group of the ignition switch. We repair and change the contact group of the ignition switch ourselves. New pinout type

When getting into a car, any driver turns the key in the ignition to start the engine. This simple action ensures that the starter receives voltage from the power source, as a result of which the engine crankshaft begins to turn and the engine starts. If a breakdown occurs with the ignition switch, further operation of the vehicle becomes impossible. However, many problems can be fixed with your own hands.

Ignition switch VAZ 2106

At first it may seem that the ignition switch of the VAZ 2106 is an insignificant detail. However, if you look at it, the mechanism is an integral part in any car, since it starts the engine and powers the electrical network. In addition to supplying voltage to the starter, electricity from the lock is supplied to devices that allow you to control certain parameters of the car, etc. When the vehicle is parked, the device de-energizes systems and devices.

Purpose and design

If you describe the purpose of the ignition switch in simple words, then this mechanism prevents discharge battery through the on-board network and provides voltage only when necessary, i.e. during operation of the machine.

The main elements of the ignition switch are: 1. - locking rod; 2 - body; 3 - roller; 4 - contact disk; 5 - contact sleeve; 6 - block

The ignition switch on the VAZ Six consists of the following elements:

  • locking rod;
  • frame;
  • roller;
  • contact disk;
  • contact sleeve;
  • block.

There are many wires connected to the lock mechanism. They are supplied from the battery and connect everything installed in the car into a single electrical circuit. When the key is turned, a circuit is closed from the “-” terminal of the power source to the ignition coil. The current passes through the wires to the ignition switch, and then is supplied to the coil and returns back to the positive terminal of the battery. When current flows through the coil, a voltage is generated in it, which is necessary to create a spark at the spark plugs. As a result, when the key closes the ignition circuit contacts, the engine starts.

Ignition switch electrical circuit It is connected using wires with connectors at the ends. If the wires are connected to the mechanism using a chip (large round connector), then there should be no problems with the connection.

If the wires are connected separately, you must adhere to the following connection sequence:

  • pin 15 - blue c black stripe(ignition, interior heating and other devices);
  • pin 30 - pink wire;
  • pin 30/1 - brown;
  • pin 50 - red (starter);
  • INT - black (dimensions and headlights).

Below is electrical diagram lock connections:

Description

The ignition switch of the VAZ 2106 is made in the shape of a cylinder and consists of an electrical (contacts) and a mechanical (core) part. The mechanism also has a protrusion for fixing the steering wheel. On one side of the device there is a recess for the key, on the other there are contacts for connection electrical wires. The two parts of the lock are connected to each other by means of a leash.

The ignition switch provides not only rotation of the rotation mechanism contact group, but also locking the steering wheel when the key is removed from the lock. Locking is possible due to a special rod, which, when turning the key to the right, partially enters the device body. When the key rotates counterclockwise, the element extends, and when it is removed, the part enters a special hole in the steering column. The locking mechanism is accompanied by a loud click when the key is removed.

"The lock

Since each key has its own tooth shape, this is an additional measure of protection against theft. Therefore, if you try to start the engine with another key, it will not be possible.

contact Group

The contacts of the VAZ 2106 ignition switch have the form of a washer with leads for connecting electrical wiring. On inside The washers contain the conductive contacts of these terminals, as well as a movable element that rotates under the influence of the lock mechanism. When the position of this element changes, certain contacts are closed, thereby providing power to the terminals of the product in question, connected to the closed coins.

How does it work

The ignition switch of the “six” is located in the car interior to the left of the steering column and is hidden decorative elements. On the driver's side, the mechanism has a key hole. There are several marks on the front surface of the lock - 0, I, II and III. Each of them has its own purpose.

The “0” mark is a position that ensures that all devices powered by the ignition switch are turned off; the key can also be removed in this position.

Such electrical devices, like a brake light, a cigarette lighter, and interior lighting, operate regardless of the position of the key in the lock, since they are constantly supplied with battery power.

Mark I - in this position, power is supplied to the on-board network. Voltage is supplied to the headlights, dashboard, ignition system. In this case, the key is fixed and there is no need to hold it.

Mark II - in this position of the lock, voltage from the battery begins to flow to the starter to start the power unit. In this case, there is no locking, so the driver holds the key until the engine starts. As soon as the engine starts running, the key is released and it takes position I.

Mark III - parking. In this position, all electrical devices connected to the on-board network are de-energized, and a latch is inserted into the hole in the steering wheel column, which prevents the theft of the vehicle.

Find out about the malfunctions of the VAZ-2106 instrument panel:

Ignition switch problems

Problems are possible with both the mechanical and electrical parts of the device.

The key won't turn

One of the lock malfunctions is a problem with the key, when it turns tightly or does not turn at all. Quite often the situation ends with the key breaking, as a result of which part of it remains inside the mechanism. A solution to the problem of a jamming lock can be the use of a penetrating lubricant, for example, WD-40. But do not forget that this is just a temporary solution and the switch will still have to be replaced in the near future.

Video: replacing a lock if the key breaks

Devices do not function

If such a problem is observed when the key is turned in the lock, but the instruments on the dashboard do not show “signs of life,” this may indicate damage to the contacts of the mechanism, as a result of which they do not fit together tightly enough. The malfunction is solved by replacing the contact group or simply by cleaning the contacts with fine sandpaper. It is advisable to check how tightly the connectors fit on the contacts - they may need to be tightened with pliers.

The starter does not turn on

If there is a problem with the lock, problems with starting the starter may also occur. The reason is damage to the switch contacts or failure of the contact group. As a rule, the malfunction is typical for the contacts that supply power to the starter. The problem manifests itself as follows: the starter does not start or it takes several attempts to turn it on. To determine whether there is indeed a fault in the contacts, you can check the voltage at the terminals using a test lamp or multimeter.

If it is discovered that the contacts have become unusable, it is not necessary to completely change the lock - you can only replace the washer with the contacts.

Ignition switch repair

To carry out repair work or replace the lock, it must be removed from the car. Tools you will need:

  • Phillips screwdriver;
  • awl.

How to remove the lock

After preparing the tools, you can begin dismantling, which is performed in the following order:

  1. Remove the negative terminal from the battery.
  2. Remove the decorative linings of the steering column.
  3. To avoid confusion with the wires during reassembly, write down on a piece of paper or mark with a marker which wire should be connected where, and then remove the wires.
  4. Use a Phillips screwdriver to unscrew the lower fastener of the lock.
  5. Insert the key into the device and turn it to the “0” position, which will disable the steering wheel locking mechanism. Immediately, using a thin awl, press the latch, by means of which the switch is held in place.
  6. By pulling the key towards you, the lock is removed.

Video: how to remove the lock on a VAZ 2106

How to disassemble a lock

During the repair process, as a rule, the “larva” or contact group is changed. To remove the washer with contacts, you will need a minimum of tools: a screwdriver, a hammer and a tool. Disassembly consists of the following steps:


Getting to the core of the castle is somewhat more difficult:


Video: repairing the ignition switch on a “classic”

What kind of lock can I put?

On classic Zhiguli cars, ignition switches of the same design were installed, but it should be taken into account that cars produced before 1986 were equipped with locks with 7 pins, and then with 6. If you need to replace a lock or washer with contacts with 7 pins, and find they failed, you can simply buy the second option and connect two wires together (15/1+15/2), and then connect them to terminal 15.

Installing the "Start" button

Some VAZ 2106 owners install a button for ease of starting the engine. It is connected via the starter power circuit to the break in the red wire, which goes to terminal 50 of the ignition switch. In this case, the engine starts as follows:

  1. The key is inserted into the lock.
  2. Turn it to position I.
  3. The starter is started by pressing the button.
  4. When the engine starts, the button is released.

To stop the power unit, you must turn the key counterclockwise. A slightly different option for connecting the button is also possible, so that with its help you can not only start the engine, but also turn it off. For these purposes you will need the following parts:

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

According to the diagram, when the button is pressed, power is supplied to the headlight relay, and after the contacts are closed, to the starter. When starting the power unit, the button is released, thereby opening the contacts of the starter relay and breaking its power circuit. If you press the button again, the contacts of the switching device open, the ignition circuit is broken and engine operation stops. The second option for using the button is called “Start-Stop”.

Even a car owner who is encountering such a problem for the first time can replace or repair the ignition switch on a VAZ 2106. To carry out the work you will need a minimum of tools and compliance step by step instructions. The main thing is to connect the wiring to the lock in accordance with the diagram.

During prolonged use of the vehicle, malfunctions in the operation of the ignition switch are possible - as a result of oxidation of the contacts or mechanical damage to the wiring. It is necessary to periodically replace the contact group of the ignition switch and repair the locking mechanism.

Design and functions of the ignition switch contact group

Functional elements of the lock: rotary control element and contact group. The main function of the ignition switch contact group is to close the contact terminals and connect elements in the electrical circuit. Changing the position of the key allows you to perform the following steps sequentially:

  • close the power circuits of electrical appliances and lighting systems;
  • supply current to the spark plugs and starter;
  • start the car engine.

To avoid involuntary short circuits between the elements, the wiring is made through a block on the end wall, and the contact planes are hidden in a polymer shell.

Principle of operation

Turning the key closes the circuit and allows power to be supplied from the battery to the coil. Voltage is transmitted to the spark plugs through wires. The starter begins to spin the engine - the fuel mixture ignites in the combustion chamber, the engine starts and starts working.

The first key switching mode allows you to unlock the steering wheel. The steering mechanism locking system is designed for safety - with an anti-theft purpose. The following key position in the ignition switch allows:

  • turn on the instrument panel lighting;
  • parking lights;
  • use brake lights and hazard lights.

It is possible to gain access to the ignition switch contact group by removing the plastic panel with the locking mechanism.

Location

For most domestic and foreign cars, the ignition switch is structurally located in the steering column housing or under the panel of technical sensors. The contact group is located behind the plane of the ignition key cylinder.

It is typical for many vehicles to install the ignition switch on the right or left side of the steering column. Sometimes there are foreign car models where the lock and key are located on the car's dashboard or navigation panel.

Reasons for failure

Malfunctions of the lock elements are reflected during vehicle operation. Problems arise when starting the engine and manifest themselves as:

  • intermittent starter operation;
  • unusual extraneous relay clicks;
  • slow response when changing key positions or complete lack of response.

Sometimes there are situations when the car cannot be turned off. Failure can be diagnosed by examining the elements of the contact group for oxidation.

Mechanical

If the key jams in the lock cylinder, the fault is looked for in the structural elements of the device. The entry of dust particles into the keyhole is accompanied by clogging and premature mechanical wear. In this case, the entire lock will need to be replaced.

Often the problem is the wear of the wire sheath - this happens due to mechanical rubbing against each other.

You should check the tightness of the terminal contacts, and check the cracked insulation for integrity. Replace damaged sections of wiring and tighten the terminals for tight contact.

The internal parts of the keyway also wear out. To increase service life, lubricant is regularly added inside the larvae. A mechanical break in the geometry and wear of the key cannot be ruled out - you will need a spare copy or a duplicate made in advance.

Electrical

The need for premature replacement of the contact group arises when the device is overloaded. Over time, the contact winding elements burn out due to overheating. The resulting internal carbon leads to a violation of the density of the contact spots and the throughput function of the circuit load.

When installing additional sound and light elements, check the devices for matching current strength. Additional devices are connected to the electrical circuit using special relays or fuses.

Checking the functionality of the ignition switch contact group

Diagnosis of the suitability of the ignition switch contact group is carried out with a device - a multimeter. The contacts are checked for changes in resistance.

Sequence of work

The performance of the part is checked in the following sequence.

  1. Disconnect the battery (you can only remove the “-” terminal).
  2. Disconnect the contacts of the wire block.
  3. The lock connectors are checked in different positions(pairs of contacts of the lower and upper rows).

Multimeter readings

When checking with a multimeter, we look for the following signs and readings of the device:

  1. Impossibility of measurement (infinity sign) - replacement of the contact group without the possibility of manipulation and repair.
  2. Fluctuations in the sensor needle (numbers on the screen) indicate intermittent contact. It will be necessary to check the terminals for tight connections and clean them from oxidation.
  3. Signs of a malfunction of the ignition switch contact group are zero readings on the multimeter.
  4. The next stage of troubleshooting is checking the electrical wiring for integrity.

You can check the functionality of wiring without a contact group by directly connecting pairs of corresponding wires. If the starter cranks and the engine starts, the circuit line from the battery to the spark plugs is fully functional, and the problem lies in the ignition switch system.

How to replace a contact group?

The procedure for replacing a contact group is quite simple, if you have the necessary tool and skills in working with electrical equipment. Basic technical points— marking the wires in relation to the sockets and sequentially carrying out the stages of work.

You can manually draw up a sketch of a circuit diagram of a working system, and use it to connect a new group in the correct order.

Step-by-step instruction

The procedure for replacing the ignition switch contact group is as follows:

  1. Unscrew the screws securing the steering shaft housing.
  2. Press the clips and remove the plastic panel to remove the ignition switch.
  3. The anti-theft mechanism is clamped with a screwdriver through the hole in the bracket and the lock core is pulled out.
  4. Carry out an inspection for mechanical wear of the elements, and also check the terminals for carbon deposits and oxidation.
  5. Check the steering wheel locking device with the rod extended and recessed.
  6. Check the resistance in the circuit (with a multimeter).

The functionality of the contact group is checked in all modes of the switching mechanism (ignition key position).

Having discovered a problem in the operation of the contact group or the ignition switch, replace it with new elements. Assembly is performed in the following sequence:

  • alternately connect the wires to the connectors of the contact group and connect the clamps;
  • first check the functionality of the system with a new contact group (in different positions of the ignition key);
  • the wiring is tightened with polymer clamps;
  • install the lock on new bolts (with caps that break off) in the steering column.

The special bolts are tightened until the heads break off. At the final stage, install the casing and plastic panels, and the structure assembly is checked for play.

Replacing the ignition switch

We dismantle and change the lock according to a similar principle. Having disconnected the battery terminals, set the key in the ignition switch to the zero position “0”. After disabling the safety mechanism lock, remove the plastic panels of the steering column. We mark the connection wires. Dismantling the old unit:

  • unscrew the screws and remove the protection;
  • Use a chisel to knock down the clamps fastening to the column;
  • disconnect the marked wires.

After diagnosis minor damage You can try to fix the old lock in a workshop. Be sure to change the lubricant for the rubbing elements. If the old lock is completely unsuitable for use, you will need to select a model and purchase a new element. Installation of the device is carried out in the reverse step-by-step order.

Conclusion

Replacing the ignition switch contact group is simple step by step process. Replacement possible on our own, if you have the necessary tools and skills. A multimeter is used to diagnose the breakdown of the contact group, and replacement is carried out according to the marked wiring diagram. Following the sequence of actions, new model The ignition switch guarantees long-term stable operation of the system.

(3 ratings, average: 4,67 out of 5)

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 site editors 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» – a label 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. She points out that starting device voltage applied. 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 wire blue color with a black stripe);
  • “30” and “30/1” – constant “plus” (wires of pink and Brown respectively);
  • "INT" – outdoor lighting and light alarm(double black wire).

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

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

Pinout of the ignition switch VAZ-2110:

  1. +12V goes to the starter (pin 50);
  2. +12V comes from the battery (pin 30);
  3. not used.

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.

Scheme of VAZ and car ignition switch

The structure of a car ignition switch

  1. Locking rod
  2. Frame
  3. Roller
  4. Contact disk
  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. When electricity passes through the coil, it produces 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 ignition switch on a VAZ car

To carry out repair work to replace the ignition switch of a vase, we will need: a screwdriver, a tester and a thin awl. Once you have everything you need, you can begin the repair. On all classic VAZ cars, the ignition switch is located at the bottom, on the left of the steering column. To replace you need:

  1. Disconnect battery
  2. Remove the plastic casing by first unscrewing the screws that secure it.
  3. Then unscrew the two screws securing the ignition switch to the bracket.
  4. We insert the key and set it to position 0 to disable the anti-theft device.
  5. Insert the awl into the hole in the bracket and press the latch. Then we take out the lock itself.
  6. After removal, it is recommended to mark the contact wires so that nothing is mixed up the next time you connect.

Removing the ignition switch on a VAZ-2106 begins with disassembling the steering column casing. We unscrew the five bolts and remove its halves. Before you begin disassembling the electrical part of the lock, it is very useful to disconnect the battery by removing the negative terminal or unscrewing the switch bolt. After this, remove the spring retaining ring from the back of the lock body and remove the contact group. We move it to the side so that it does not interfere, and we begin to remove the lock itself.

It is secured in the steering shaft bracket with two bolts, after unscrewing which nothing happens. It is useless to try to remove the lock from its socket if you do not know about the special stopper. It is located on the lock body under the bracket. We press this stopper into the lock with a thin screwdriver through a small hole in the bracket. Further, according to all the instructions, the lock should be pulled out freely, but this does not work.

An obstacle that is not described anywhere is the anti-theft rod. Even though it is in a “disconnected” state, it still clings to the steering shaft. To remove the lock, you have to manipulate the key. In different positions of the lock cylinder, the anti-theft device also moves and is recessed as much as possible when the key is in the “Starter” position. After a few minutes the lock can be pulled out of the bracket.

Here is the time to write that assembly of the unit should be carried out in the reverse order of removal. And in general, this will be true. First you need to insert the new lock into the bracket, recessing the latch and holding the key in the starter position, tighten the fastening bolts, then connect the wires. This needs attention Special attention, because an incorrectly connected contact group can damage the starter or ignition system. We reconnect the wires from the old group to the new one one at a time, checking the numbers on the contacts. After this, we assemble the steering column casing.

On the car, the ignition switch is located on the driver's side, mounted on the left side of the steering wheel on the steering gear bracket, under the instrument panel.

First of all, you need to get rid of the decorative casing of the steering shaft, unscrew the fastening screws and remove it. We performed similar actions when replacing the steering shaft.

After removing the decorative casing, unscrew the two screws securing the ignition switch to the body, then insert the key into the lock and turn on the “0” position, which turns off the anti-theft device. Through the hole in the bracket, press the lock lock with a thin awl and remove the ignition switch from the mounting socket. On this renovation work Removal of the ignition switch is completed.

On VAZ 2108 and higher models, a package with wires is connected to the lock, that is, nothing needs to be marked and the possibility of mixing up the wires when installing a new switch is completely eliminated. Well, on VAZ 2107 and lower models, this is not the case, each wire is connected separately, so when removing each wire, it must be marked so as not to be confused during further installation.

To replace the contact group of the ignition switch, you need to use a thin screwdriver or an awl to pry the retaining ring from the edge and remove the contact part. When installing a new contact part, orient it so that terminals “15” and “30” are on the side of the locking rod.

At this point, the repair work is completed, install the new ignition switch in the reverse order of removal, connect the wires, transferring the markings from the old switch to the new one. The pinout or connection diagram of the VAZ ignition switch wires is quite simple and understandable, so every car enthusiast can carry out repairs or replace a spare part without the help of car service employees.

The car of the Korean manufacturer is popular among car enthusiasts. Daewoo Nexia - convenient and practical vehicle for the city. But, unfortunately, there are no ideal cars; each has its own weak points. In Nexia, this is a group of contacts in the ignition switch. It often breaks down. In the article we will look at why the contact group burns, how to repair and replace, what to do to prevent the part from burning in the future?

What does the ignition switch contact group look like?

This part is located in the ignition switch. When you turn the key, it is responsible for supplying current to the starter and providing power to other elements of the car: the radio, the heater fan. The Daewoo Nexia uses a design solution that, according to experts, can hardly be called successful.

Let's take a closer look at the contact group. Electrical contacts are placed in a plastic case made of two parts; they are switched depending on the position of the key.

The contact group in a Korean car often burns out due to an unsuccessful design decision

Nexia’s group has 5 conclusions:

  • “30” - power is supplied from the battery;
  • “15” - ignition circuit;
  • “15a” - heater fan circuit;
  • “50” - output to the starter;
  • “Ka” or “Kb” is the circuit of the original radio.

Causes of burnout and symptoms of breakdown

A strong current passes through the ignition switch. As a result, the wiring becomes very hot and the contacts melt. A large load occurs when the engine starts, the pin marked “30” suffers the most. First of all, it doesn’t hold up; the plastic case near the contact melts.

Due to the high current that passes through the group of contacts in the ignition switch, the contacts become very hot and the plastic housing melts

In most cases, burnout of the contact group manifests itself as follows: after turning the key in the lock, the starter does not turn. When driving, it manifests itself as follows: the engine suddenly stalls, the instrument panel goes dark and the smell of burnt plastic appears in the cabin. The second sign of a breakdown is a non-working standard radio.

It cannot be said that the starter does not spin and the car radio does not work only because of the contact group, but in 90% of cases for the Daewoo Nexia the symptoms are exactly the same.

How to check and make repairs

Any car enthusiast can check the serviceability of the group of contacts in the ignition switch. Performance is determined by appearance plastic case and the presence of carbon deposits on the contacts inside the group. To get to the part, it is enough to arm yourself with a Phillips and straight screwdriver.


If the case is not damaged, be sure to inspect the internal contacts. To do this, carefully disassemble the case. If carbon deposits are found, remove it using sharp knife or screwdrivers. This temporary procedure will help along the way. As soon as possible, contact an electrician at a service station or replace the contact group yourself.

Eliminating the cause of burnout

It should be noted that replacing the contact group with a working one helps for a while. For quality repairs it is necessary to eliminate the cause of burnout: reduce the current load on the contacts. Enhance weakness Daewoo Nexia can be done by installing additional relays according to the diagram:

When using two relays, the load on a group of contacts is halved

This method will help extend the service life of the contact group by more than 2 times. Anyone can improve the electrical ignition circuit of a Korean car.

Video: Replacing the contact group on the Daewoo Nexia

To fully understand the process of replacing a group of contacts in the Daewoo Nexia, watch the video:

Repairing the contact group on a Daewoo Nexia car yourself will not be particularly difficult. Additional difficulties will arise if the wiring needs to be replaced. The wires going to contacts “30” and “50” often melt. If possible, relieve the contact group. This will protect the car from fire and extend the life of the part.

In cars, objectively highlight more or less important elements from a practical point of view it is impossible. The heart of every car is its engine, however, without wheels or even just tires, the car will be impossible to even move.
Consequently, there are no unimportant elements in the car. Perfectly replacing the contact group of the ignition switch of a VAZ 2110 is a very difficult and time-consuming procedure, since this system is basic and without it the car is not able to function.
On the other hand, the contact group of the VAZ 2110 ignition switch can be easily replaced on your own if you know the important nuances.

Information about the ignition system that every motorist should know

The main most significant functions of ignition systems:

  • activation of the engine “core” of the car;
  • protection of unauthorized engine activation;
  • providing a number of auxiliary functions, etc.

From a practical point of view, the ignition system is the on/off switch for the car’s engine, and if this system is in a faulty state, the likelihood of the car being stolen will increase significantly.

The main reasons that force you to replace the car’s ignition system

This:

  • detection of traces of an unauthorized attempt to start the engine;
  • in case of involuntary loss of the ignition key;
  • contact group malfunction.

A simple way to check if poor contact closure is the reason why your car's ignition system refuses to start:

  • first you need to disconnect the negative terminal, which is located on the battery;
  • remove the casing from ;
  • then disconnect all contacts;
  • check the voltage level using an ohmmeter;
  • the charge of all contacts being tested must be at zero level.

Note. If during the test the ohmmeter shows a value other than zero, the ignition switch must be replaced immediately.

It is necessary to objectively understand that if the integrity of the ignition switch has not been compromised, then it makes sense to replace only the contact group (cylinder (see)). This procedure may be necessary if an attempt was made to steal the car or if the contact group has oxidized during long-term use.

A practical look at replacing the contact group of the ignition system

So, the algorithm itself for replacing the contact group, if such a need arises:

  • first you need to remove it directly;
  • after which you can safely proceed to its complete disassembly;
  • inside the lamp socket there is a plug with wires, these two elements are connected to each other, they must be disconnected;
  • take off plastic cover ignition system, for this you will first need to unscrew the latch in the opposite direction using a screwdriver;
  • Now you need to unscrew all the latches that remain.

Note. It is necessary to unscrew the latches very carefully so as not to accidentally damage them.

  • it's time to release the plastic cover directly from the ignition system lock itself;

  • in order to directly access the contact group, you need to unscrew two additional latches to completely remove the plastic cover.

Note. All openings of the latches must be done using a screwdriver, and with a light and smooth movement.

  • it’s time to remove the contact group along with the LED attached to it from the cover;
  • in most cases, on the LED contacts you can see with the naked eye some black soot along with traces of oxidation;
  • fine sandpaper will help quickly and effectively eliminate the problem presented above.

Note. If cleaning the diode contacts with fine sandpaper did not give the desired effect or it was necessary to remove too much of the surface layer, then instead of the old contact plate it will be necessary to install a new one.

  • in order to remove the old contacts, they must be slightly turned to the side so that the LED slot and the protrusion coincide with each other;
  • after which, the old record will automatically fly out;
  • The age spring contains a contact plate; it must be removed from there.

Note. If the spring has lost its mechanical properties, it must be replaced immediately, otherwise the ignition system will remain in a faulty state.

  • If the age spring does not cause suspicion, then it, together with a new contact plate, should be placed in the light guide.

Note.
During reassembly, the first thing you should pay attention to is the outer plate, or rather its wide protrusion. It is opposite it that you need to place two small internal protrusions directly on the LED itself.

  • the time has come to directly correct the plates of the contact group itself using careful fine grinding, since, most likely, during operation they either rusted, or simply oxidized, or both at the same time;

Note. If fine grinding does not give the desired effect, then the contact group plates must be replaced immediately.

  • to install a new contact group platinum, you must first disconnect the wire from it using a soldering iron;
  • after the above technical manipulations have been successfully completed, you can proceed directly to assembling the ignition system lock;
  • first you need to combine the emphasis and small sizes a protrusion of the contact plate so that the previously assembled light guide can be installed on the base of the contact plate;
  • V round hole covers, it is necessary to place the light guide, first on the base, putting the cover on accordingly;
  • Further, all technical manipulations of the assembly are carried out strictly in reverse order regarding assembly.

Note. The main thing during assembly is to connect the wiring correctly.

The cost of assembling and repairing the contact group with your own hands is low and almost zero, the main thing is to carefully follow all the nuances that the instructions provide. The use of photo and video materials will help create a correct visual representation of the entire holistic process.
At the same time, from time to time you must remember to clean the contact plates.

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