13.7. Direction indicators and hazard warning lights

13.7.1. Front and rear direction indicators

13.7.2. Side turn signal repeaters

If you press the red hazard warning switch with the ignition off, all four direction indicators and the transparent button of the switch itself will flash in a single rhythm.

To check the direction indicators, you must turn on the ignition and turn off the hazard warning lights, as they override the direction indicators. When the steering column lever is moved to the appropriate position, the direction indicators on one side and the green indicator lamp in the instrument cluster should start to light up at regular intervals. The operation of the signaling device is organized in such a way that, according to the prescribed standards, the alarm signaling works even with the ignition off - the voltage to the switch is supplied directly from the battery. The direction indicators are supplied with electricity only when the ignition is on, through the installed fuse. If a system malfunction occurs, the following guidelines may be helpful:

If the control lamp stops working in normal mode or blinks, as a rule, one of the system lamps is faulty;

If the lamps stop blinking and are on constantly, the device relay is faulty;

If the lamps flash faster or slower, and the wiring, including the ground wire, is not damaged, the relay must be replaced;

If the direction indicators do not work when turned on, but they start to act when the alarm is turned on, a fuse is blown, the turn signal switch or its wiring is faulty;

If neither the direction indicators nor the alarm are working, then the relay is faulty. In addition to the warning lamp, which blinks in the same rhythm with the indicator lamps, the system is also activated by an acoustic signal - clicks emitted by a relay in the instrument panel. If it malfunctions, it is necessary to disassemble the dashboard, which is quite laborious.

Motorists often face such a problem as a broken turn signal, but not everyone of them knows how to quickly fix the problem. It is very dangerous to continue driving in the event of such a breakdown. Better to stop and try to fix the problem.

Types of problems and methods of elimination

The direction indicator works correctly if the following indicators are observed:

• the presence of the switched on ignition provides an operating mode;
• movement of the steering column switch up and down must be accompanied by the inclusion of a turn signal from the corresponding side;
• the turn warning light should flash at 60 cycles per minute.

Any other behavior of the turn signal indicates a problem. The most common causes of malfunctions are:

Unblinking turn signal. The problem requires familiarity with the basic principle of the relay: the current passing through the lamps leads to the heating of the measuring resistor - an element that determines the need to turn on a particular lamp. Therefore, the resistance of the lamp, which is different from the nominal one, changes the turn-on time of the turn signal: it starts blinking. In this situation, it is recommended to lightly knock on the relay (this helps if there is a weak contact or moisture ingress). If you replaced the relay, but the turn signal does not blink, but is on constantly, then there is weak contact with the fuse box. Replacing a fuse with a resistance value that does not correspond to the nominal can also help.

The termination of the work of one turn signal is incompatible with a relay malfunction (malfunctions of such a plan cause a failure in the operation of both turn signals). One of the turn signals may fail due to a burned out light bulb (the simplest option) or a violation of the wiring or cartridge. The new paw should not only fit into the turn signal socket, but also correspond to the power indicated on the plafond. If, after replacing the light bulb, the turn signal does not start working, you need to pay attention to the cartridge. If there are traces of oxidation on it, then they should be removed. Sandpaper or a file is good for this. And if the bulb is too tightly in contact with the contacts, then you need to bend them with thin-nose pliers. This must be done as carefully as possible, avoiding the closure of contacts, which can lead to another problem - the turn signals work in a checkerboard pattern. The normal state of the cartridge means that the cause of the malfunction lies in the wiring. First you need to make sure that the wire is securely connected to the socket. In this case, the closed state of the wires between themselves or the short circuit of the "ground" on the metal body of the car is inadmissible. In this case, it is necessary to replace the wires or at least insulate them.
If at the same time the emergency lights also do not work, then the relay definitely needs to be changed - it is faulty.

Failure in the automatic shutdown can be corrected in only one way - to replace the switch. In the event of such a breakdown, it is better to seek help from a specialist.

Also, the switch itself may be the cause of the inoperative turn signal. To check it, you need to get to the steering column switch and unmount it. By the way, if there is a trouble in the form of a non-turning alarm in the presence of normally working turn signals, you just need to replace the button responsible for turning on the emergency light.

Too often a blinking turn signal is a sure sign that one of the bulbs has burned out, or a chip in the taillight or a track in the mounting block has oxidized.

The dim light of the turn signal is a signal to check the conformity of the model and power. If everything is in order, then cleaning the contacts of the bulbs can correct the situation.

The turn signal relay that emits clicks is also not the norm. The malfunction is fraught with a mounting block, or rather, relay contacts. Sounds like clicking sounds can occur if the contact is oxidized or if it is too tight. A defective relay also leads to this. You can fix the problem by stripping the contacts or installing a new relay.

A direction indicator that does not work on one of the sides, either in front, or behind, or in a repeater, indicates that the steering column switch has broken, there is no contact with it, or that the same relay is out of order.

The turn signal circuitry is protected by an 8 amp fuse located in the mounting block. In the event of a breakdown, the turns on both the left and right sides of the vehicle will stop working.

The light signaling system ensures traffic safety, so the driver should always have at least the required power bulbs with him.

Video

How to diagnose faulty turn signals, see below:

None of the drivers are 100% insured against getting into a traffic situation when they need to turn on the alarm, and if it does not work, then you have to put up an emergency stop sign. But modern car owners, including Daewoo Nexia, find it more pleasant to use the emergency signaling, press the button and your car is already marked on the roadway. Therefore, drivers usually make sure that it is in working order.

And where to look for a malfunction if the alarm suddenly went out of order? As always, they start by checking the fuse, which is located in the mounting block. This block on Daewoo Nexia is located on the left side of the front panel. Unfortunately, on all the diagrams posted on the Internet, it is indicated that the F8 fuse is responsible for the "emergency gang", but car owners who are faced with this problem claim that this electrical circuit, as well as the clock circuit, the ceiling lamp and the trunk lighting are protected by 20 Yellow ampere fuse F15.

In the mounting blocks (until 2008, N100, and since 2008 they began to install N150) Daewoo Nexia, there is one sore, over time, the contacts where the fuses are inserted weaken, which leads to malfunctions of the electrical circuits protected by it. Therefore, when checking the fuse F15, it is imperative to get it out, inspect it visually for burnout, tighten the contacts where it is inserted and, if it is intact, put it back. Then check the operation of the alarm.

It is not correct to check the integrity of fuse F15 by turning on the plafond in the passenger compartment, since with weak contacts it can pass a small amount of current, and when the emergency gang is turned on, a current of about 7 amperes is required, which does not pass through such a weak connection. Sometimes the fuse blows out so that it is not visually visible, and in order to make sure that the F15 is working, it needs to ring.

The flashing of the direction indicator lamps, which should not be burnt out, when the alarm is turned on, is provided by the relay located in the mounting block at the top left (in the diagrams it is indicated by the letter A). If it fails, then its clicks will not be heard by the driver after pressing the emergency gang button. And if the relay and fuse are working, you will have to check the wiring, starting from terminal 30 of the ignition switch. And the power button itself may become unusable.

Nexia Is one of the most common and affordable Daewoo cars. Good dynamic qualities for a car of this class, easy maintenance and a relatively low price for new and used models did their job. Now there are a lot of them on the roads. Nexias are used mainly as taxis, as well as rented and private cars.

The Uzbek assembly of electrical components in many models is not as reliable as one would like. Many devices often fail, in particular, Daewoo Nexiaа fuses and relays, and the contact group at the ignition lock is a "sore spot" in the car.

If an electrical appliance fails, first of all check its fuse. It is not enough to visually inspect it, the gap may not be visible to the eye. It's good if you have a tester on hand. If there is no tester, instead of checking the fuse, you can immediately replace it with a known good one. Therefore, always carry a set of new backup fuses with you. This will save your nerves and time in many cases.

Having found a blown fuse, do not rush to change it. Otherwise, the new fuse may also be damaged. Understand what caused it to burn out. Make sure that there is no short circuit of the circuit it protects, as well as the integrity of all wires. It happens that one of the wires is bent or pinched and begins to close on occasion to the car body.

Always try to bring the work with an electrician to the end, check as many causes of failure as possible, otherwise any short circuit can cause a fire or an accident. If you have a car diagram at hand, use it if you can. If there is no experience in repair and knowledge, it is better to contact a car service to any electrician.

In Daewoo Nexia models before 2008, the mounting block was designated N100, in models after 2008 - N150. The numbering and function of both Daewoo Nexia fuse boxes and relays is the same.

Salon mounting block

The mounting block in the Nexia's cabin is located to the left of the steering wheel in the lower part of the dashboard, under the buttons for opening the trunk and gas tank. To get to it, you need to open the lid. Fuses and relays on it are located on both sides - on the front side facing the driver and on the bottom side facing the pedals. To change the relay and one of the two front fuses on the bottom side, you may need to remove the entire mounting block or turn it.

Fuses in the passenger compartment mounting block

F1 (10 A) - electronic engine control unit (ECU).

F2 (10 A) - side lights.
If your dimensions do not work, check the light and turn signal switch knob, it could fail or the contacts / wires at its base could be damaged. The price of a new light switch is about 700-1000 rubles. Also check the contacts of this fuse, it happens that they burn out, clean them and achieve good contact of the fuse in the socket. The reason may also be in the M relay and its contacts. It is also possible that the tracks in the mounting block have burned out.

If the fuse blows very often, then there is a short circuit somewhere. Check the connectors in each headlamp, as well as the wires, especially those that go in harnesses along the bottom of the car. They could be transmitted or cut off. A general wiring diagram and connectors at the end of this article. Do not forget to check the side light bulbs themselves, it happens that they all burn out at the same time or one after another.

F3 - reserve.

F4 (20 A) - high beam headlights.
To turn on the high beam, you need to move the left handle under the steering wheel to a position farther from you. To blink, pull.
If your main beam does not work, check the health of the lamps (both could burn out at once), the health of the L, H relays and their contacts, the contacts in the fuse socket. The steering column switch can also be one of the reasons. If the above is correct, most likely the matter is in the wiring or contacts in the headlight connectors.

F5 (10 A) - low beam, left headlight electrocorrector.
F6 (10 A) - low beam, electric corrector of the right headlight.
If the high beam works, but the low beam does not, most likely the matter is in the steering column light switch, check its contacts and wires, the strength of the connectors. You can remove the switch, carefully disassemble it and check the plates for a short circuit, as well as the plastic switch, whether it reliably opens the contacts. Do not forget to check the health of the lamps in the headlights, even if both dipped headlights do not work, as well as the contacts in the connectors and wires. The reason for the lack of light may be in the contact group of the ignition switch. If you are not versed in electrics, it is better to contact the service.

F7 (30 A) - fuel pump, fuel injectors.

If the fuel pump stops working, check the contacts in the fuse socket, as well as relay C and its contacts. If they are oxidized or there are traces of burning, replace the relay. There may be no contact in the ignition switch or contact group. If there are interruptions in the operation of the fuel pump, the engine starts, then no, most likely a relay, or perhaps the matter is in the fuel filter that needs to be replaced.

At low temperatures and their differences, a condensate evaporator can help, which is poured into the tank along with gasoline. Also, due to low-quality gasoline, the pump itself may fail. You can check by applying a 12 V voltage to it directly, or by connecting a hose lowered into the container instead of the fuel line.

The fuel pump may also not work due to the wiring in the cabin at the bottom left of the driver, near the left front fender. To get to the wires, you need to remove the trim to the left of the clutch pedal. When you see the connector block, check all the wires and connections coming from it. The yellow-brown or white-brown wire is responsible for the operation of the gas pump. Also check that the wires are not interrupted by possible self-tapping screws screwed into the body.

If nothing described helps and an unloading relay is installed in the contact group of the ignition switch, check it and replace it if necessary.

F8 (20 A) - turn signals, alarm, brake lights.
If the direction indicators stop working, first of all check this fuse and relay-breaker A, as well as its contacts. If the turn signals work intermittently, the point is most likely in the same relay A, in the wiring or in a short circuit in the turn signal connectors. If, when the direction indicators are turned on, neither the turn signals nor the warning lamps on the dashboard work, most likely the matter is in the steering column switch, its contacts or relay.

If the "emergency" does not work, most likely the matter is also in the relay, in the button itself and its contacts or wiring from the button to the fuse / relay.
Don't forget to also check the turn signal bulbs themselves.

F9 (30 A) - wiper, washer.

If the "wipers" do not work, look at relay F and its contacts. Check whether the gear motor itself is working by applying a voltage of 12 V to it, whether the nuts on the shafts of the wiper holders are tightly tightened, whether the trapezium mechanism is working properly. Check the serviceability of the right steering column switch, contacts and wires in its connector. Another reason for the incorrect operation of the cleaner motor may be poor ground contact. Try to directly connect a wire between the car body and the motor body and check its operation.

If the outside temperature is low, check if the wiper mechanism is frozen, especially the shafts with nuts, if necessary, clean it of ice and moisture.

F10 (10 A) - electric drive of the gas tank cover lock.

F11 (10 A) - air conditioning compressor relay.
In order for the air conditioner to work properly after winter, it is recommended to turn it on from time to time in a warm place (garage, box, car wash) in winter so that the sealing joints are lubricated. Otherwise, they will have to be changed in the spring. At low temperatures, due to lack of pressure, the air conditioner will not turn on.
If the air conditioner stops working, check, in addition to this fuse, also relay J. The system may have run out of freon. You can check by unscrewing the cap on the side of the receiver, located near the battery. By pressing the valve, the freon should hiss out of the hole, which means there is pressure and gas.

If there is no pressure, check the pressure sensor mounted on the tube near the air filter. When the contacts in the two-pin connector of the pressure sensor are closed, the air conditioner must turn on. Fill the system with freon, having previously checked the system for leaks. There may be leaks in connections, pipes and the radiator of the air conditioner.

The matter may also be in the clutch, which, when the air conditioner is turned on, should move (a click will be heard), if it does not work, check its connector, you can also check by applying a voltage of 12 V to it, access to the contacts is only from below, it is most convenient to get from the examination room pits. The compressor may also be faulty or its belt may break, check for the presence of a whole and tensioned lower belt (under the upper alternator belt) in the front of the engine.

If the air from the air conditioning system enters the passenger compartment poorly or not cold enough, check the cabin filter and replace it. The evaporator may also be clogged, check and clean it.

F12 (30 A) - low speed of the radiator cooling fan.
If the fan only runs at high speeds, check this fuse, the contacts in its socket, and relays B and K.

F13 (20 A) - dashboard, clock, cigarette lighter, buzzer, reversing lamps, generator, heated rear window.

F14 (30 A) - sound signal, high speed of the radiator cooling fan.

If the sound signal does not work, check the fuse and contacts in its socket, as well as relay I. If the signal frequency has changed or the signal disappeared altogether, most likely the matter is in the wiring to one of the horns. 2 signals - 2 tones. Check the contacts and wires at the horns by removing the radiator grill, they usually rot due to moisture. Also check the steering column contact of the horn button and its mechanism.

If at high temperatures the radiator fan stops turning on, check the serviceability of relays B, E, K and their contacts. Check the fan sensor, disconnect the contacts from it and close them, the fan should turn on. Or apply 12 V voltage directly to the fan connector, thereby checking the serviceability of its electric motor, check this connector for connecting wires to the fan for oxidation of the contacts.

If the fan motor is running, it could be a fuse and relay, wiring, thermostat, and coolant temperature sensor. If you check the wiring, from the temperature sensor to the ECU, from the ECU to the relay.

F15 (20 A) - light in the cabin, light in the trunk, electric antenna.
If the light in the plafond near the rear-view mirror does not work only in the "Auto" position, check the limit switches in the doors and wiring, as well as the light mode switch itself. The wiring from the limit switches is harnessed in the driver's door sill or under the driver's seat, check the integrity of all wires.

If the light does not work in any of the modes, check the serviceability of the lamp and the switch in the plafond.
If the light in the trunk does not work, check the lamp on the left side of the trunk, the light contacts and the wiring.

F16 (30 A) - power windows.

If your windows stopped working, most likely the matter is in the wiring. Check the wires going to the doors to see if they are broken at the folds (in the corrugated rubber bands), a standard disease of many Nexia models. Also check the operation of the motors by applying a voltage of 12 V to them and the condition of the brushes in them. If one window regulator does not work, the matter may also be in the door wiring or in the window regulator control button, check its contacts and serviceability.

Also check the mechanism itself in the door for defects and jamming, the condition of the gear and cable. The reason may be in the driver's power window control unit. Check it for a short circuit.
If the glass begins to warp, because of which the window regulator cannot cope with it, try to completely lower the glass and lubricate the sealing rubber strips with WD-40 liquid or silicone.

F17 (10 A) - power supply of the radio from the ignition switch.

Usually the radio is connected in such a way that it only works when the ignition is on. If you want the radio tape recorder to work constantly, find the place of its connection in the contact group of the ignition switch and connect it to a constant 12 V power supply through a fuse. If the radio tape recorder stops working, check the ignition switch, the contacts in it, the contact group and the wiring.

F18 (30 A) - power supply of the radio from the battery, heated rear window, electric trunk lock, central locking.

Heated rear window in Nexia is automatically turned off. If it does not work for you, check this fuse, F13 and contacts in their sockets, as well as relay G and its contacts. The heating timer relay can be installed not in the mounting block, but under the dashboard, just above the pedal unit. Also check the button itself and its contacts. The reason may be in the wiring from the button to the rear window, it could be transmitted to the bottom of the car. Check the terminals of the heating elements of the rear pillars at the edges of the glass and the absence of broken threads on the glass. If you find a break, glue it with a special glue containing metal.

If the central locking does not work and some door does not close, remove the casing from it and check the correct operation of the lock drive and the serviceability of the traction. If the lock is 5-pin, check the health of all its contacts and wiring. Also check the wires in the corrugation at the fold when opening the door. The case may also be in the central locking relay, which is located behind the electronic control unit (ECU), on the passenger side of the center console.

F19 - reserve.

F20 (30 A) - air conditioner fan.

F21 (30 A) - fog lights.
If the "fog lights" stopped burning, check the fuse, the contacts of its socket, the serviceability of the lamps in the headlights, the power button in the passenger compartment, wiring, relay D and its contacts.

Relay in salon mounting block

A - turn signal interrupter relay, alarm.
See information about F8.

B - high speed of the radiator cooling fan.
See information about F14.

C - fuel pump.
See information about F7.

D - fog lights.
See information on F21.

E - maximum air conditioner fan speed.

F - wiper, intermittent operation.

G - relay-timer for heating the rear window with auto shut-off.
See information about F18.

H - low beam headlights (when high beam is on).
See information about F5, F6.
In new models after 2008, this relay, when the high beam is turned on, does not turn off the low beam and turns on the high beam.

I - sound signal.
See information about F14.

J - air conditioning compressor.
See information about F11.

K - low speed of the radiator cooling fan.

L - headlights.

M - outdoor lighting.

N - buzzer.

Wiring diagrams

Using the following wiring diagram, you can determine the locations of the connectors and contacts to ground, which can cause interruptions in the operation of devices when they are loosened.

Electrical connectors are marked in yellow and start with an X.
Wire grounding, body ground contacts are marked with blue dots, numbered.

Grounding contacts

1 - in the central part of the steering column
2 - near the battery
3 - not used
4 - on the top of the engine block
5 - in the trunk
6 - under the driver's seat
B - direct contact of the unit body with the car body.