Hello kadabra. The time has come to please you with a new puzzle by the Uzbek means of moving the fifth point of the "daewoo nexia" system.

(under the cut a cool story and a few photos)

The fact is that a few days ago, when the emergency gang or turn signal was turned on, the lights stopped flashing at times. They just went out, and did not start blinking until you turn off and turn on the lever. At first it manifested itself once a day, then once an hour, and yesterday, after the problem began to appear every minute, the machine decided that henceforth I would not need the direction indicators at all and stopped lighting them in principle.

"Why, they say they are for you," - decided Nexia - "turn signals do not suit normal Potsons, let those around them learn to read maneuvers." By the way, the funny thing is that the breakdown occurred on the territory of the unforgettable Kupchino.

Since everything was cut off at once - both the turn signals and the emergency gang - this led me to look for the problem in the fuse and relay box. The fuse turned out to be intact, but with the relay (in the photo it is at the top left) there was an oddity: when you pressed the emergency button or turned on the turn signal, it made one "click" - and that's it. In this case, the bulbs did not light up.

In the turn signal relay block, one of the contacts turned out to be darkened. To be sure, I bent it a little, although the relay was already tight enough into it. This did not solve the problem

It was decided to try to replace the relay, since there was a car market nearby on the street. Salov. But you still need to get there through a few blocks and busy intersections. Traffic rules state that in the absence of direction indicators, it is necessary to notify other road users with the help of hand gestures out the window. However - I thought - not everyone remembers WHAT a hand sticking out the window means according to traffic rules - you never know if they think something is wrong - people are nervous now. Again - Kupchino. Explain then you will be tortured that the middle finger was not raised on the arm sticking out and raised at the elbow (to indicate the right turn).

So I just jumpered contacts 49 and 49a, which break the light circuit, put the relay back in and hit the road. The turn signals can now be used as before, except that they did not blink when turned on, but burn constantly.

At Salov's car market, I am not at all guided and was there for the second time in my life, and time was running out, so I did not find decent stores with auto electronics and used the services of hucksters selling everything from trays - from blue letters to checkpoints with engines in collection. I took my own relay for the sample with me

For some reason, the hucksters did not find completely identical relays. All were with a shorter body. Nevertheless, it was logical to assume that it would work anyway.

However, there is nothing of the kind. After installing a new relay (shortened), the situation has not changed. Everything is the same: we press a button or a turn signal, the relay clicks once - and silence. Only alarmed by the fact that the new relay clicks at all barely audible. He returned the relay, ran to another huckster, took the shortened relay from him again - put it on - all the same again.

Now, attention, a question. Are the long and short versions of the turn signal relay interchangeable? And where in St. Petersburg you can get hold of a good good native Nexievsky relay?
I forgot to take a picture of the short relay article, unfortunately, but it seems to be 07.3747. Item number of the original 495.3747-01.

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 begin 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. When 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 flashing 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 control lamp, which blinks in the same rhythm with the indicator lamps, the activation of the system is also confirmed by an acoustic signal - clicks emitted by the relay in the instrument panel. If it malfunctions, it is necessary to disassemble the dashboard, which is quite laborious.

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 have encountered this problem claim that this electrical circuit, as well as the clock circuit, ceiling lamp and trunk lighting is 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 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.

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. Consequently, the resistance of the lamp, which is different from the nominal, 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 operation of one turn signal is incompatible with a malfunction of the relay (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 file is good for this. And if the light 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 - 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 misfortune 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: