Wiring diagram for daewoo nexia and matiz with a description of electrical equipment, searching for problems with wiring

Electrical diagram of Daewoo Nexia

The Daewoo Nexia electrical circuit diagram of which is presented in this section was not developed yesterday, and this greatly facilitates the repair of the main components of the car. The design of the car as a whole repeats the Opel Cadet of the 80s. Minor changes have been made to decorative elements and optics, and there are also options with a twin-shaft 16-valve engine, which in no way affected the electrical diagram that we posted below.

As you can see, the scheme is simple and to some extent identical to VAZ cars, and those who are familiar with the old Cadet will understand it without any difficulty.

Electrical equipment

Nexia engine 16 valves, timing, characteristics, main problems.
Daewoo Nexia 16 valve At first, a lot of complaints were caused by the Check Engine light, which suddenly came on and did not go out, despite any tricks. Let us reassure you right away - as a rule, there is nothing criminal, the reason is a controller glitch. The controller simply “did not see” the engine crankshaft position sensor (error P13360). It could only be cured at the dealer, and often by replacing the controller itself. By the beginning of 2009, the plant had overcome the problem. If you get a Check Engine light today, it's most likely due to low-quality gasoline.

Relays, sensors and other electrical devices are manufactured in various parts of our planet, from Kaluga and Pskov to India. Alas, at first they could not boast of either quality or maintainability. Thus, the instrument cluster, made in India, suffered from “stuck” arrows. A phantom malfunction sometimes appeared on both the new Nexia and on a car that had run more than tens of thousands of km. This did not change the essence of the matter: we had to wait at least two to three months for the “socket”. In 2009, complaints about Indian devices reached a critical mass, and at the urgent request of the manufacturer, the Indians finally got down to business. As a result, by 2010, cases of freezing became rare.

Nexia fuse box

As in all European cars of those times, the Nexia has a fuse block with fork-type fuses. This is much more convenient than the old cartridge elements. Each fuse is responsible for a specific section of the circuit. In the event of an overload or short circuit, the fuse does not allow harm to electrical equipment located in the circuit after it. The basic rule, which cannot be neglected, is that any use of jumpers that short-circuit the contacts tightly, or bugs, is unacceptable. It is also unacceptable to use fuses that do not correspond to the rating. If the fuse has a resistance lower than the rated value, it will blow, and if it is significantly higher, it will burn out the equipment that it was supposed to protect.

For ease of use, fuses have housings of different colors. 10 amp fuses have a red body, 20 amp yellow, 30 amp fuses have a green body. The fuse board is located in the same housing as the relay block, and the entire mounting block is located on the driver's side under the instrument panel.

Explanations for symbols on electrical circuits of daewoo matiz | automotive wiring diagrams

At first glance, the electrical circuit diagrams discussed in the Matiz car section cause complete confusion. After the general diagrams of domestic cars that are familiar to us, the diagrams of foreign cars are a dark forest. However, this is not quite true. Taking the circuit apart into parts has its advantages.

And if you carefully study this section on reading electrical circuits, then everything becomes clear and simple. Take, for example, power circuits. If you do not know whether power is or should not be supplied at the moment to the section of the circuit under study, voltage.

Just look at the designation of the power cord and compare it with the table below. Let's say you're looking at a light switch circuit, you look at the diagram and it's connected to wire number 30.

This means that power, its positive source, regardless of the position of the key in the ignition switch, is constantly present on this conductor. The same goes for the fuse for this circuit.

By marking it on the diagram, we find out the maximum current load that it can withstand - in this case 80 Amperes, where it is located - in this case in the fuse box in the engine compartment and through which contact - in this case 1, which connector - here as an example connector C203.

In addition, we immediately determine the color of the harness in which the desired wire is located. For specialists, it is not particularly difficult to remember the letter indices of the designations. Moreover, there are not so many of them. And in practice, understanding the diagrams every day, they quickly get used to and understand the usefulness of these notations. If you yourself want to find and fix a breakdown in any Daewoo Matiz electrical equipment circuit, this page will help you.

Problems with power windows

The build quality of the Daewoo Nexia, unfortunately, very much depends on the factory at which the car was assembled. Most often, problems with window regulators arise on Russian-assembled Daewoos, and the components supplied to both Uzbekistan and Poland are, apparently, exactly the same. However, if problems arise with the window regulators, you need to make sure that the problem is in the electrical part. If everything is fine with the mechanics, then you should check the fuse in the mounting block.

If everything is in order with it, then most likely it is in the lift control unit. The main unit is located in the driver's door armrest. The most likely failure is failure of the control keys or lack of contact in the control unit. The fact is that the door is constantly subject to vibration, so due to poor quality assembly, the contacts may simply come off.

Video text

How to adjust Daewoo nexia headlights (Where and what to turn)

Adjusting the headlights of the Daewoo Nexia, instructions for dummies. Do not criticize too much) 1) To adjust the light beam of the headlight up or down, you can turn the bolt on the corrector by hand. 2) To adjust the beam to the left or right you will need a long thin screwdriver. Or you can remove the headlight and simply twist the bolt with a Phillips screwdriver.

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We install fog lights on Daewoo Nexia N150 in garage conditions

The only thing that is required from the owner of a Daewoo Nexia who has decided to install fog lights on his own car is to purchase a universal kit and check its completeness.

In the photo - Nexia with branded PTF

Specifically speaking, check if the box contains:

• Two branded fog lights for Nexia N150;
• Incandescent lamps;
• Wiring harness with female terminals already installed;
• Fuse with socket for installation;
• Relay for controlling the operation of fog lights;
• PTF activation button for the interior;
• Plastic clamps and screws as fasteners.

Branded fog lights Nexia N150

Advice: specifically universal kits are better, since their developers include several spare fasteners, and the wiring is made with an allowance.

Air conditioning Daewoo Nexia

Some Nexia cars were equipped with air conditioning. It was included in the most expensive configurations and worked quite reliably with proper maintenance and operation. The main reasons for the failure of the air conditioner, which relate to electrical equipment, were failures of the electromechanical clutch of the compressor drive and breakdowns of the climate control system. Despite the fairly reliable design of the air conditioner itself, there were annoying errors when assembling components, which sometimes led to premature wear of the compressor and evaporator.

Since the operation of the air conditioner is connected to the heating and blowing system, it could not help but respond to frequent failures of the air circulation drive motor. The engine itself cannot be repaired, but before you say goodbye to it, it’s worth checking the circuit right down to the fuses. If there is voltage on the circuit after the fuse, it is quite possible that the contacts in the motor power supply are to blame.

Where are the fuse box and relays of the Niva Chevrolet

The location of the inserts on cars did not change from 2011 to 2022.

To gain access to the main unit, you should pick the instrument panel in the area of ​​the pedal assembly. Under the dashboard, to the left of the steering wheel. To get to the panel under the tidy, use a Phillips screwdriver to remove the plastic casing, where the panel will be.

A detailed location with a description is in the photo below.

Chevrolet Niva fuses with description

The main elements of a car can be divided into two groups based on location. Consequently, their purpose will be different.

The photo shows a fuse panel, relevant for models manufactured after 2009. For convenience, it is better to give the decoding in the form of a table.

The car radio and speedometer are connected separately from the main fuses. The drives of the injectors and air conditioning compressor are designed similarly. Depending on the configuration and year of manufacture, the listed components may be connected according to a different scheme.

Also in the VAZ 2123 panel there are spare fuses located in separate sockets.

Additional fuse block

Here the main part is represented by relays, but there are also fuses. Fuse links have markings and areas of responsibility:

• No. 2 – high-power fuse responsible for protecting the power lines of the electrical circuit of the right radiator fan and an additional relay group;
• No. 3 – safety insert for the fuel pump located in the tank;
• No. 4 – the element is responsible for powering the car controller circuit;
• No. 9 – fuse for the right radiator fan;
• No. 10 – insert protecting power lines and circuits switched on by the main relay.

Relay Niva Chevrolet

Two places where protective inserts of electrical circuits are concentrated are presented. The explanation of the automatic circuit switching nodes is as follows.

Main mounting block.

The car’s design also includes a remote control panel:

• K1/2 – standard fog lights (if equipped);
• K3 – activation of the seat heating system;
• K4 – horn protection;
• K5 – standard inclusion of the starter circuit.

Separately, you should consider the engine control system unit:

• K1 – additional relay;
• K5-6 – head radiator fan inserts for the left and right sides, respectively;
• K7 – power supply to the fuel pump circuit;
• K8 is the main relay of the car.

Ignition system

The contactless ignition system of the Daewoo Nexia works stably and there are no outright complaints about it. In the event that all elements are serviced and checked for mechanical integrity in a timely manner. First of all, this applies to highly loaded devices:

• ignition distributor;
• coils;
• high voltage circuit;
• electronic control unit.

Since 2008, an ECU without feedback has been installed on the car, so its operation has become more stable. In addition to all other corrective functions, the ECU also controls the operation of the ignition system. The control unit adjusts the operation of the system based on the following data:

• crankshaft rotation speed;
• throttle opening angle;
• data from the catalytic converter oxygen sensor;
• temperature and pressure of incoming air.

The ignition system must quickly respond to ECU signals and make adjustments to the advance angle. In case of any abnormal readings, the system informs the driver about the need for maintenance or repair.

Thus, any faults in the electrical equipment of the Daewoo Nexia can be localized, and the diagram posted on the page will help with this. Control the on-board voltage, and have a good trip!

Ignition system of Daewoo Nexia with 8 valve engines

Daewoo Nexia

This ignition system, as stated above, is non-contact with a centrifugal distributor. That is, the system must necessarily consist of a distributor, a switch and an ignition coil. The distributor is attached to the cylinder head and connected to the camshaft

When purchasing parts for the distributor, I noticed that almost everywhere they sell a “Hall sensor” for distributors. The same statement can be found on many sites on the Internet.

But this statement is not true. An inductive sensor is installed in the distributor, that is, a coil on a magnetic circuit in the middle of which a permanent magnet rotates. In this case, an alternating voltage of approximately 3V is induced in the coil. This signal is fed to a switch, which converts the signal and, depending on it, controls the ignition coil. The switch is located inside the distributor.

Electrical diagrams of Daewoo Nexia N100-N150

On our website you can download in good quality all the diagrams of the Daewoo Nexia - from engine elements to electrical equipment. The photographs are color and high resolution - to do this, first left-click to enlarge the diagram and then save it to your computer. First, a little history of the car. See the second part of the article - diagrams of Daewoo Nexia systems.

Engine diagram

Elements of the F16D3 electronic engine control system:

This memory is volatile, i.e. When the electrical power is interrupted (the battery is disconnected or the wiring harness block is disconnected from the ECU), its contents are erased. The PROM stores the engine control program, which contains a sequence of operating commands (algorithms) and calibration data - settings. The PROM is non-volatile, i.e. The contents of the memory do not change when the power is turned off.

The ECU receives information from system sensors and controls actuators such as the fuel pump and injectors, ignition coil, idle speed control, oxygen concentration sensor heating element, canister purge valve, exhaust gas recirculation valve, intake tract length variable valve (on the F16D3 engine ), air conditioning compressor clutch, cooling fan.

History of Daewoo Nexia

In the history of the Daewoo Nexia car there were only two generations: Nexia 1 (N100) and Nexia 2 (N150). The first generation of the car was produced from 1994 to 2008, and the second, after a slight restyling of the interior and body and a complete replacement of the engine with engines from Chevrolet Lanos and Lacetti cars, has been produced since 2008 to this day. Today we will focus on the Daewoo Nexia N100, describe its characteristics a little and give all the electrical circuits of the equipment.

The basis for the creation of the Daewoo Nexia was the Opel Kadett, which was produced in 1984–1991. As you can see, Nexia was developed by the German concern Opel. Next, the South Korean company Daewoo modernized the car and released this particular miracle car, which, due to its low cost, is produced after restyling to this day. The assembly of the car was carried out on the territory of Uzbekistan - Asaka.

The car was made in both sedan and hatchback body styles (3-door and 5-door). Only gasoline engines were offered to choose from:

• G15MF - 1498 cm3 (75 hp)
• A15MF - 1498 cm3 (85 hp)
• F16D3 - 1597 cm3 (109 hp)
• A15SMS - 1498 cm3 (80 hp)

Transmission: 5-speed manual or 3-speed automatic.

Video - crash test of Daewoo Nexia:

This is probably the toughest crash test... the car was 100% disgraced in terms of safety.

Technical characteristics of Daewoo Nexia 1 and 2:

We study the electrical circuit of the electrical equipment of Daewoo Nexia and Matiz cars

The electrical network in any car is used to connect all devices and equipment into one circuit. Therefore, every car owner must be able to understand the circuits and know about equipment malfunctions in order to make repairs on their own if necessary. You can learn more about what the electrical circuit of the Daewoo Nexia is and what malfunctions are typical for it in this article.

Features of electrical equipment

The general electrical circuit of a Daewoo Matiz or Nexia car includes the following subsystems:

1. The ignition system includes a lock, a starter unit, a generator unit and a battery.
2. Temperature controller, pressure and speed sensors, XX valve, dampers.
3. Diagnostic unit, as well as torque converter blocking, fuel pump electric motor.
4. Anti-theft system, immobilizer, central locking.
5. Transmission control unit.
6. Security system, including airbags, sensors.
7. Lighting devices - fog lights, brake lights, headlights, headlights, interior lights, etc.
8. Sound signal.
9. Trunk lock, warning buzzer mechanism.
10. Rear window defogger.
11. Electric windows.
12. Ventilation system, including stove, air conditioner.
13. The dashboard, where the main parameters of the car are displayed.
14. Anti-lock braking system.
15. Headlight adjustment mechanism.
16. A mounting block with fuses, where all safety devices designed to protect circuits are concentrated.

Fuse and relay box Daewoo Nexia N100

Fuse links, fuses and relays for turning on the vehicle's electrical equipment are installed in a block located on the left behind the instrument panel.

Part of the fuse and relay box covered by the instrument panel cover

Bottom of fuse and relay box

Replacing fuses and relays

Sequence of execution 1. Prepare the car for work.

2. Remove the instrument panel cover.

3. Using the diagram on the back of the cover and the tables (see above), we find the fuse for the faulty circuit and remove it.

A faulty fuse can be identified by a blown thread.

4. Install a new fuse of the appropriate rating.

5. To replace the relay, remove it from the block, having previously identified the faulty one from the table (see above).

6. Reinstall the block cover.

The information is relevant for Daewoo Nexia models 1994, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008.

How to determine the malfunction?

One of the most common wiring problems is current leakage.

As a rule, the diagnosis of such a malfunction is carried out using the negative terminal from the battery, while the positive terminal must remain connected:

1. The tester (multimeter) needs to be connected with one probe to the negative terminal of the battery, and the second probe is connected to the removed terminal block. When connected, values ​​should appear on the tester screen - the optimal indicator in this case is a current in the region of 15-70 mA, this parameter depends on the number of voltage consumers connected to the battery. If we are talking about a car with a carburetor engine, equipped with basic equipment and without an anti-theft system, then the leakage current will be small.
2. If the diagnostics show that the leakage readings are within the normal range, then the battery needs to be diagnosed. If the current consumption is increased, then the check continues, now we work with the fuse block. The safety elements are removed from this device, and after each is removed, the leakage is measured.
3. If it happens that after removing the fuse, the leakage rate decreases to the optimal level, this indicates that the circuit with the fuse removed is consuming more current. Now you only need to find out which consumers are connected to this section of the electrical circuit, after which the wiring itself is diagnosed (Video author - Alexander Shestopalov).

If the battery is faulty, energy consumers may not work at full capacity, and if the battery is completely discharged, then the engine will not be able to start. It is necessary to diagnose the battery from time to time - check its voltage, measure the level and density of the electrolyte in the jars, and inspect the case. If there are cracks in the case, it is possible that electrolyte is leaking out of them, which contributes to the destruction of the battery.

You also need to pay attention to diagnosing the performance of the generator unit. If this device is not working properly, it will not be able to charge the car battery when the engine is running.

To diagnose the generator, you will need a tester - a multimeter; you need to switch it to ohmmeter mode, and then perform the following steps:

1. The tester probes are connected to the battery observing polarity.
2. The engine starts, after which it is necessary to set the crankshaft rotation speed to medium, turn on the music and optics. This way you can create operating conditions for the motor, under which the battery voltage is measured.
3. After this, it is necessary to take readings from the tester. If the generator unit is in working condition, the voltage parameter at the battery terminals should be about 13.5-14.5 volts. If this value is lower, then the device needs to be checked in more detail (video author - Dmitry Pristrom).

Possible wiring faults

What malfunctions can occur in the operation of the electrical circuit:

1. Broken wiring. This problem can lead to current leakage; we have already described its diagnosis in more detail. To prevent wiring breakage when laying new wires, they must be additionally insulated.
2. Short circuit. One of the less common problems is diagnosed using the same tester.
3. Voltage fluctuations - it can be either low or high. Such malfunctions are usually associated with incorrect operation of the battery or generator, or, less often, additional devices.
4. Contacts are oxidized or burned. Contacts usually oxidize as a result of prolonged use or when equipment operates in humid conditions. Oxidation can occur on the connecting plugs - this problem is solved by cleaning them with sandpaper or a wire brush. If we are talking about burning, then it is most likely caused by power surges in the network. Therefore, you first need to solve the problem with overvoltage, and then change the burnt contacts.