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How to replace the ignition lock cylinder on a Daewoo Nexia. Contact group of the Nexia ignition switch - we solve the problem. General information about the Nexia ignition switch

The Nexia model is perhaps one of the most common types of cars on Russian roads. The Daewoo company produces economy-class cars with fairly wide functionality and inexpensive auto parts, which is beneficial for driving on Russian roads. A problem of such a nature as a breakdown or replacement of the Nexia ignition switch is not common. Even taking into account that the electrics of these cars are the most problematic area. Replacement does not require special skills, only attentiveness and concentration are important. The average car owner is quite capable of performing repairs on his own, without resorting to the services of qualified auto mechanics.

Key moment! Before replacing the ignition switch on a Daewoo Nexia, it is important to determine the cause of the breakdown. The cause may be a failed electrical mechanism cylinder or its contact group.

The above spare parts can be replaced and are inexpensive, so you don’t have to worry about repairs. The design has very small parts that are easy to lose; The issue should be approached by first preparing the necessary tools and a well-lit area.

flat, Phillips screwdrivers;
straight thin knitting needle or thick needle;
wrenches 10mm, 12mm.

Dismantling

First, you need to remove the old lock in order to install a technically sound one. This is done in several stages:

Start the work by removing the terminal from the battery using a ten key. Use a Phillips screwdriver to unscrew the screws securing the steering column casing. To access the top screws, turn the steering wheel. You can remove the steering wheel completely, but this is not necessary.
After removing the steering column trim, access to the electrical mechanism we need opens up. Before removing the ignition switch on the Daewoo Nexia, you should disconnect the contact group from it. Using a Phillips screwdriver, unscrew the fastening screw and, as carefully as possible, remove the contact group, which looks like two small rings.
Dismantle the cylinder: unscrew the fastening bolts from the lock using a screwdriver, knock it down with gentle blows.
When disassembling the structure, it is necessary to check the condition of the contact group, since the cause of the malfunction may be in it. In this case, replace the element.

When the faulty mechanism is removed, proceed to install the new one.

Installation

Having established the cause of the breakdown, go shopping. Remember: for cars of different years of manufacture or assembled in different countries, certain lock options are provided. We recommend using the VIN number to determine the type of mechanism. Be sure to purchase new screws to secure the pieces as they are permanent.

To insert a new lock on a Daewoo Nexia, you will have to perform a series of actions as during dismantling, but in the reverse order.

We install the lock on the seat and securely fix the bolts.
We connect the contact group to the lock using a screw.
We fix the steering column trim. Access to the upper holes of the mounting screws is possible by turning the steering wheel.
Screw on the battery terminal.

Summary

Before changing the ignition switch on a Daewoo Nexia, it is worth considering that some inconveniences may arise. It is impossible to use the same key to start the engine and open the doors or trunk. The old one will perform the function of opening the doors and trunk, and the new one will start the car. If you are not ready to use two different keys, then you should change all the locking mechanisms at once. This can also be done without outside intervention because the remaining locks are easier to dismantle.

The option of replacing the secret of a new lock is not always suitable. To do this, you need to be careful, and perhaps have technical knowledge: there is a high probability that during the dismantling process the plastic decorative ring will be damaged and the metal protective ring that secures the cylinder in the structure will be scratched.

The procedure is carried out as follows:

The key is inserted into the keyhole, turned as it unlocks, and pressed into the hole with a wire or knitting needle. When the larva reaches 5mm, remove it using improvised means. If you mix up the secrets, the electric mechanism will stop working.
The larva itself has a cotter pin secured with a spring. To pull it out, you need to press down and turn the key towards the ignition. The cotter pin is released from the clamps and flies out, as the spring acts on it.
It is now possible to configure the secret to match the old lock.

P.S.

On a Daewoo Nexia, the ignition key opens the doors and trunk. Accordingly, when replacing the mechanism, this function will be lost. The driver will have to use two keys, which is not very convenient and often leads to confusion. The problem can be solved in two ways:

Purchasing a new set of cylinders for the ignition switch, doors and trunks and installing them in place of the old ones.
Replacing the damaged core (plug) of the lock with a new one while maintaining the old security mechanism.

The second option is possible if you can purchase original spare parts; the Chinese-made larvae are not included in the body, and it will not be possible to fit them. Sequence of actions for replacing the ignition switch:

Insert the key and turn it clockwise until it stops.
Using a screwdriver, a knitting needle or a piece of wire of a suitable size, we recess the latch; this will allow the cylinder to come out of the body by about 5 mm. When performing this action, you should be careful so that the spring-loaded part does not “fly out” of the socket and get lost.
We remove the core with the secrecy mechanism from the housing with extreme care.
Using the described method, we disassemble the new larva.

Now it is necessary to change in the new core all the figured frames and springs that make up the ignition switch security mechanism. This can only be done if their number and external dimensions match. When performing manipulations with devices, you need to be very careful and careful. You should not completely disassemble both mechanisms and try to assemble one from two units. Experts recommend doing this:

We remove the plate from the outermost slot of the new lock and set it aside.
We take out the part from the seat with a similar position of the old unit.
Now it needs to be inserted into the free slot of the new housing until it stops.

Warning! Any mistake when replacing the plates in the new ignition switch mechanism will make it impossible to use. If everything is done correctly, then we reassemble the unit in the reverse order. The latch is carefully pressed out with a suitable object, and the sorted larva is inserted into the body until it stops.

To ensure smooth operation of the unit, apply a small amount of silicone grease to it. After assembling the ignition switch, turn the mechanism until it stops and back several times; there should be no jams when performing this action. Now it can be installed in place and the driver will use the old key to open the doors and trunk of the Daewoo Nexia, as well as to start the engine.

This article is for informational purposes only and is not an ignition switch repair manual and is not endorsed by the vehicle manufacturer. If a unit malfunctions, you must immediately contact a certified car service center to receive qualified technical assistance.

Car brands that originated in South Korea are very popular in our country. Not only new items are relevant, but also used equipment. Among the popular cars is Daewoo Nexia.

One of the weak points of the car is the ignition switch area. Motorists on the forums note that all elements included in the unit have poor operational reliability. Relatively often, the contact group of the Daewoo Nexia ignition switch forces it to be replaced due to breakdowns. It is important to monitor the condition of the electrical unit, as it is responsible for trouble-free engine starting.

Before replacing the ignition switch contact group on a Nexia, you need to know its internal condition and operational functionality. You need to look for the group in the area of the ignition switch. When you turn the key, the dashboard and electrical appliances connected to the on-board network are gradually put into operation. And at the extreme switching position, a signal is given to send voltage to the starter.

It is important to know that professional motorist experts note that the design used for the Nexia in ignition is unsuccessful.

The block is enclosed in a plastic case consisting of two elements. Inside there are wires of different sections, commuting with each other based on the angle of the key position. Burnout of contacts often occurs. A specific brand provides several groups of electrical outlets:

50 – to transfer energy to the starter;
30 – outgoing power from the battery;
15 – ignition zone;
15a – heating fan feeding;
Kb and Ka – used for the on-board audio system.

Refer to the operating instructions from the vehicle. It shows where the pins are located.

Causes of breakdowns and manifestations of burnouts

The wiring cables supply current with a large amperage. During operation, the unit overheats and the ends melt, which entails detailed diagnostics, after which the contact group of the Daewoo Nexia ignition switch is replaced. The main load is on the pin numbered “30”. As a result, it is possible to visually determine the melting of the plastic case in the contact area.

The manifestation of CG burnout when passing a high current during engine starting is the absence of voltage supply to the starter. As a result, the electric motor does not rotate. With a high degree of probability, the contact group should be blamed for melting in the case when all the following events occur almost simultaneously during movement:

The internal combustion engine begins to stall;
all warning lights on the instrument panel go out and the dial indicators do not work;
There is a characteristic smell of burnt plastic inside the car.

Also, at the first stages, the on-board audio system in a Daewoo passenger car of this brand stops working.

Check and possible recovery methods

Before removing the contact group of the Daewoo Nexia ignition switch, it is necessary to carry out a check. Almost any motorist can do it independently. First of all, attention should be paid to the appearance of the plastic case. There should also be no noticeable black deposits on the contacts inside the group.

A Phillips and flathead screwdriver will help you get to the main cables and contacts. Operations are performed in the following sequence:

dismantle the plastic housing elements, secured with countersunk screws for a Phillips screwdriver;
remove the protective cover in the steering column area;
fold the contacts of the connector chip away from the contact group;
Separate the group with a flat screwdriver.

A small screw is screwed into the housing on the right. Thanks to it, a group of contacts is fixed in the ignition switch housing. It is enough to pry it to separate it from the lock.

Upon completion of the dismantling operations, we take out the parts and inspect the contacts. If melted areas are identified, replacement will be required. Installation is carried out in the reverse order of disassembly.

Relay Introduction

If you were unable to notice any damage during inspection, we recommend opening the case with a hard knife. Perhaps the damage that causes negative factors to appear is hidden inside.

Eliminate Burnout

Motorists should know that replacing the contact group of the Daewoo Nexia is a temporary operation, because after a short period of operation it will come out again. Without radical intervention in the design, it is unlikely that the breakdown will be eliminated forever.

The main task for an electrical repairman is to eliminate the cause of burnout. In such a situation, it will be necessary to reduce the current flowing to the wiring. The operating amperage can be adjusted using an additional relay included in the circuit.

Due to the embedded part, the current strength can be reduced by half to optimal values. This option of repair and simultaneous modernization will double the uninterrupted service life of the unit.

Conclusion

The introduction of a relay will not only help save money on the next replacement of the contact group, but will also extend the service life of the ignition. All work can be completed without outside help in a garage environment.

As in any car, the Daewoo Nexia has a combined unit that has anti-theft functions. Conventionally, it is called the ignition switch, although the structure of the unit is much more complex than a simple lock. The ignition switch controls electrical equipment, supplies power to it, and locks the steering column to prevent theft. Nevertheless, we all know a lot of cases when the legal owner cannot use the car - either the keys are lost, or there is a mechanical failure of the ignition switch assembly.

Ignition switch housing – spare part number 531318, 531320.

In this case, there is only one thing left - a complete replacement of the ignition switch assembly.

But first you need to make sure that the new lock you purchased is original or at least approved for use by the manufacturer. To do this, check the original catalog number. The Korean original ignition switch has an article number - S6460010. Daewoo can install company locks DAC, Daewoo, Onnuri(Wonil Korea). Each of these locks will have a single catalog article, and the price will be approximately the same - about 2,000 rubles.

Analogs

You can also buy analogues, both more expensive and cheaper than the original.

Company Castle ARK for Nexia it will cost 200 rubles cheaper, and companies CRB- a hundred more expensive. They are also produced by the Turkish company Autotechteile, the quality of which has not yet been complained about. In short, there is plenty to choose from. All that remains is to remove the old lock and install a new one.

Removing the old lock assembly

The dismantling procedure is not particularly tricky, but not for the faint of heart. For our work we will need a standard set of tools, a hammer and a sharp chisel. The replacement algorithm is simple:

To get to the lock and the steering column, unscrew the 4 screws securing the lower casing.
Using a Phillips screwdriver, unscrew the screws of the lower casing.
Remove the decorative rings of the lock. There are two of them - one plastic, the second rubber.
Using a screwdriver, remove the decorative and sealing rings.
Unscrew the top casing. We turn the steering wheel to the right, we see a screw on the casing. Use a Phillips screwdriver to unscrew it. We do the same with the left screw.
Unscrew the top screws.
Remove the upper steering column cover. The lock is now available for disassembly.
Remove the negative terminal from the battery.
We remove the contact group. To do this, look for a hidden screw-stud in the upper part of the lock body. We unscrew it completely and turn off the contact group.
Remove the screw with a short, thin screwdriver.
Unscrew the front steering column mounts with a 12mm head.
Now you can get to the lock fixing bolts. To unscrew them, you need to use a thin chisel and a hammer to force the bolts to turn counterclockwise. As soon as their body appears to a sufficient height, we completely unscrew them with pliers.
We move the lock fastening bolts from the “dead center” with a chisel and turn them out with pliers.
Remove the old ignition switch assembly.
We install a new one and tighten the new bolts until their heads come off.
We check the functionality of the new ignition switch and replace the steering column covers.

Conclusion

Assembly is carried out in reverse order. Good luck and sunny roads!

Video about how to get to the ignition switch and change the “cylinder”

On any car, the ignition switch is an important component; if it is not working, starting the engine will be impossible. If a motorist is faced with the problem of a non-working device, there can be no other way out than replacing the contact group of the ignition switch of a Daewoo Nexia car. In this article we will consider in detail the replacement process with all the nuances.

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General information about the ignition switch Nexia and Matiz

Before we talk about how to remove and change the ignition cylinder or contact group on the lock of a Daewoo Nexia and Matiz car, we will briefly consider a theoretical issue. The manufacturer Daewoo, whose vehicles are quite common among domestic consumers, labels the ignition switch as a mechanical locking element equipped with a contact group. As practice shows, this component breaks down quite often and requires repair; this information is confirmed by motorists in numerous reviews on the Internet.

If there is a need to repair or replace the ignition switch, contact group or cylinder on the Nexia or Matiz models, it is not at all necessary to pay money for this at the service. You just need to remove the device and disassemble it, and you will find basic repair recommendations below. But before that, let's figure out what are the causes and signs of device malfunction.

Causes of failure

All reasons for the failure of the ignition switch on Daewoo Matiz and Nexia cars are conventionally divided into two groups - electrical and mechanical. One of the main electrical reasons why a contact group or cylinder requires replacement and repair is overloading of the elements. As a result of the fact that the car owner equips his vehicle with additional electrical appliances and devices that consume more power, a voltage passes through the contact group for which it was not originally designed.

Accordingly, for a certain time, the metal of the group can withstand high current, but subsequently the device begins to become covered with soot, and it usually forms on top of the contact, but inside. As a result, it may be impossible to clean the contact group; in fact, just like repairing it, all that remains is to change it.

In order to prevent overloading of this element, it is necessary to connect all additional equipment only through a relay. In this case, the current will not be able to overload the devices and the group contacts will be intact. But it should be noted that the failure of the contact group is not always caused by the actions of the motorist; sometimes it is simply a factory defect. This problem is more relevant for VAZ cars than for Daewoo Nexia and Matiz, but nevertheless, their starter contact sometimes burns out.

Another reason why a car owner is faced with the need for repairs is a short circuit in the vehicle’s electrical circuit. Usually this rarely happens, but sometimes it happens that a large current damages the contacts of the group and the device fails. In addition to electrical ones, there are also mechanical causes of breakdowns, which also require repair of Daewoo Nexia and Matiz. One of the main mechanical reasons is wear of the contact tracks or the group contacts themselves, which inevitably leads to the replacement of elements. This problem occurs as a result of the aging of the device as a whole, this is quite normal and expected, but sometimes the reason may be low-quality metal.

In practice, the wear of the group tracks on Daewoo Nexia and Matiz cars was recorded after five months of their operation. That is, the metal elements of the device wore out so much during this time that grooves began to appear on them. The element as a whole ceases to function normally, and most likely a whole handful of metal shavings will be found in it. It is impossible to repair such a malfunction; you only need to remove the lock and replace the contact group as a whole.

Mechanical faults also include the breakage of the contacts themselves or other components of the group. For example, on some domestically produced cars, the starter contact is made in the form of an iron tongue, so every time you start the engine, this contact extends on top of the other and bends. Over time, the element simply breaks off or will not be able to press against the fixed contact of the device.

The next cause of mechanical breakdowns can be called a violation of the design of the entire group as a result of the device heating up. If the ignition switch as a whole gets hot, then this indicates an overload, which we mentioned earlier. The device heats up as a result of the large current passing through it. If the group housing is of low quality and made of plastic, then as a result of overheating, the contact tracks may move slightly, and accordingly, they will subsequently break off.

Signs of failure

One of the main signs of a malfunction of the cylinder or is the simultaneous inoperability of many elements of the electrical equipment system. This occurs as a result of the fact that a certain energy consumer or even several are connected inside the device through each individual contact. For example, the ignition can be used to power the low and high beam lights, parking lights, turn signals, rear traffic lights, radio or interior lighting.

It can also be various electronic devices, such as parking sensors, navigator, video recorder, etc. If a certain contact through which power is transferred to consumers burns out, it will not be possible to start this or that equipment (the author of the video on how to replace the lock cylinder is PRO.Garage).

When several devices break down, which, as it may seem, are in no way connected with each other, the cause of the breakdown almost always lies in the cylinder or contact group of the ignition switch. Of course, electrical equipment on Daewoo Nexia and Matiz cars can also be connected to the fuse box, and then in the event of a breakdown, first of all you need to check the fuse itself. In any case, everything is individual here.

Having analyzed the principle of operation of the cylinder and the contact group of these cars, it is possible to identify other signs of their malfunction, which will lead to the need for repair:

Starter failure. When you try to start the engine of a Daewoo Nexia car, you will not even hear the relay click, neither the control nor the relay. The absence of clicks is due to the lack of voltage that passes through the contact group.
Failure of electricity consumers, which, as it may seem, are in no way connected with each other. But all these consumers always operate in the same key position in the lock.
Another sign is if the devices were not working, and then suddenly start turning on when you try to move the key in the lock. It should be noted that the key must be in one position. As you can guess, the elements of the contact group can come into contact with undamaged surfaces and current can pass through them, but not for long (the author of the video about replacing the device with your own hands is Territory House).

How to replace the ignition switch cylinder?

The procedure for repairing and replacing the ignition switch cylinder on a Daewoo Nexia is generally not particularly labor-intensive. If you are used to repairing a car yourself, then you will not have any problems with replacement.

The larva is selected in accordance with the article, the procedure for performing the actions is as follows:

First you need to remove the negative terminal from the battery. Having done this, use a Phillips screwdriver to unscrew the bolts securing the plastic steering wheel cover. The cover needs to be removed.
Then you need to disconnect the connectors that are connected to the contact group using screws. This procedure is performed using two screwdrivers - a longer one and a shorter one, since the required bolt is located in a very inconvenient place for dismantling. It is located inside the switch itself.
Using a wire, you need to press the cylinder lock through a special hole, at the same time the switch itself should be moved to position 2. Having done this, you can ensure that the cylinder comes out of the body by about half a centimeter; to remove it, you just need to remove the element.

Next, you can begin installing the new component. But remember that after this operation the lock will be opened with one key, and the trunk with another. Not every car enthusiast will like this, so the only way out of the situation is to buy a set of cylinders for both the ignition switch, the luggage compartment, and the doors. Of course, the repair procedure in this case will take time, especially since you will have to spend more money on replacement, but this is the only way out.

If you want the key to remain the same, but you don’t want to change the cylinders in the trunk and doors, then there is one option, but let’s make a reservation right away - it is not suitable for Daewoo Nexia car owners manufactured in Korea. The idea is to replace the secrets of the new castle with the secrets of the old one. To do this, turn the inside of the cylinder all the way, use a screwdriver to press the latch and disengage it, then carefully remove it with the spring. There is also a lock on the opposite part; it may fall out, so be careful, a similar operation must be performed with a new cylinder. Evaluate the secrets yourself - if they are the same in size, then they must be replaced one by one, without confusing them (if you confuse them, you won’t be able to turn the key).

So, the new cylinder must be installed with the ignition key into the housing, while remembering that the switch itself must be activated to position 2. During installation, you need to press the latch using a pin. If you purchased a high-quality larva, then these actions should not cause problems. But if you decide to save a little and buy a lower-quality option made in China, the installation process may take longer. If you believe the reviews of Daewoo Nexia car owners, then sometimes such larvae cannot enter the body.

How to install a new contact group on the ignition switch?

If you need to replace only the contact group, then in this case you can perform all the necessary work without dismantling the ignition switch. You only need two screwdrivers - a flat head and a Phillips head. Having prepared the tools, you can begin the repair process.

Open the hood and disconnect the negative terminal from the battery.
Next, as in the previous case, you need to unscrew the bolts securing the plastic lining in the area of the steering wheel.
Using a flat head screwdriver, you need to disconnect the plug and then remove the upper steering column housing.
After these steps, you need to remove the sealing ring located on the lower casing; to do this, unscrew the four screws.
Disconnect the wiring harness mounted on the block, then insert the key into the lock and turn it to position 2.
Next, unscrew the bolt that secures the device, and you will need to remove the element itself from the lock itself. Instead of this group, a new one is installed; all further actions specified in the instructions must be performed in the reverse order.

Video “How to change the contact group on Nexia at home?”

Learn more about how to perform this procedure on your own from the video (the author of the video is Evgeny Kuznetsov).

Quite often the Daewoo Nexia ignition lock cylinder is replaced. Perhaps this is the only detail of this car that is not very well made. As a rule, a breakdown occurs completely unexpectedly, which frightens the driver. That is, you arrived at the store normally, but you can’t start it to leave.

It’s good if you have a breakdown in the second position of the lock, in which case you can start the starter by giving it power from the battery directly. Otherwise, you will have to remove the contact group in the field and short-circuit the wires. This is not possible on all modifications. If you can’t start the car, or you don’t want to dig around on the street, you’ll have to call a tow truck.

Device

Replacing the Daewoo Nexia ignition lock cylinder is entirely based on the structural features of this unit. Essentially, this mechanism is an electrically powered locking device. The lock consists of the following components:

Larvae;
Housings;
Contact group.

The location of the lock is directly on the steering column (under the steering wheel). This makes its use as comfortable as possible.

Replacing the larva

As a rule, the malfunction of the larva occurs due to the breaking off of its shank. The reason is purely mechanical. To fix it, just replace this element of the lock. To make a replacement you do not need to remove the lock; everything can be done directly on the car.
All this happens in the following order:

Disconnect the battery. While working, keep at least one window open in case the central locking is activated;
Using a Phillips screwdriver, remove the screws securing the steering wheel housing. Remove it;
Disconnect the connectors from the contact group;
Unscrew the screw securing the cylinder. To do this you will need a short and thin screwdriver. Access to this mount is quite difficult, so you will have to tinker;
To extract the larva, you need to arm yourself with a thin but strong wire. With its help, press the latch, after which the larva should move out of the groove by 5 mm. It can be safely removed from this position;
When purchasing a new part, pay attention to the manufacturer. You should not purchase larvae made in China. They just don't fit in the groove. Therefore, it is better to spend a little more, but you will have significantly fewer problems. Installation is in the reverse order. The most difficult thing is the moment of pressing the latch. It must be simultaneously pressed out with a wire hook, and at the same time the larva is inserted into place.

The only inconvenience when replacing the cylinder is the second key that appears to you. That is, the car will start with one key, and the doors and trunk will open with another. Some people leave it like that. To avoid confusion between different keys, they label them. But there are ways to leave one key:

Purchase a complete set of cylinders and replace them on all doors. Of course, it will cost you more, but comfort is guaranteed. When selling, the buyer will have fewer questions;
Another method is cheaper, but at the same time more difficult to implement. It involves transferring secretions from the old larva to the new one. They should be the same size. If this is the case, then we put the old secrets in the new larva. It is important here not to confuse their order, otherwise the key will not turn. If the size of the secrets is different, you will have to use the method described above.

Replacing the contact group

Another common malfunction of the ignition switch is the failure of the contact group. The problem can also be fixed without removing the lock from the car. This will require a minimal amount of manipulation. The contact group is part of the car's electrical system, so it is important that this will help avoid short circuits. Replacement is carried out in the following order:

Remove the steering column cover;
Disconnect the connector through which power is supplied from the contact group;
The ignition key is placed in position 2;
Using a Phillips screwdriver, unscrew the screw securing the part;
Remove the contact group from the lock body. Sometimes, this requires prying it off with a screwdriver.

Installation is carried out in reverse order. Before reinstalling the connector, it is recommended to lubricate the contacts with grease, this will reduce the rate of their oxidation. This is especially important in winter, when there is high humidity.

Conclusion. Problems with this mechanism are not uncommon. This is a nasty problem. The scary thing is that failure always occurs extremely unexpectedly. Therefore, replacing the Daewoo Nexia ignition lock cylinder falls on the share of every owner of such a model. The best thing is that to replace the cylinder and contact group you do not need to remove the lock from the car. All actions are performed directly on the steering column. The only tools you need are screwdrivers.