It is known that Renault Logan is a budget car, and therefore the manufacturer is trying to save on some of its elements in order to thereby reduce the cost of the car. Such systems also include the contact group of the sound signal, which is located in the steering column switches.
Audio repair video below.
The main reasons for the breakdown of the sound signal
Most car owners do not often use a sound signal in everyday life. But if such a malfunction is detected, then in the event that the car is under warranty and the signal stops working, you can contact an authorized dealer. You can also fix the problem yourself.
Understeering's shifter
The most common cause of signal failure is the included head lighting. The culprit in this switch, . It may lose contact. It is also noted that such a design cannot always withstand even the warranty period for a car. Since the entire bundle of wires passes along the axis of the switch, when the regulator is turned, the entire contact structure also rotates, as a result of which the contact itself disappears.
To correct the situation, you need to remove the lever. This will not take long if you have some experience.
The photo shows that a black wire fell out of the wire chip, just insert it into place
After such a repair, all elements must be assembled in the reverse order of disassembly.
Circuit breakers
Location of fuses in the main unit
Also, the sound signal may not work if the fuse blows. It is located in the mounting block in the passenger compartment.
F17 (15A and its color)- the number of the horn fuse in the diagram above
It should be remembered that Renault Logan also has two more small blocks located in the engine compartment. It is recommended to check them all for blown fuses.
The beep itself
The sound signal itself can also refuse to work. It is located in the engine compartment on the left. It can only be accessed after removing the mudguard.
The sound signal under the bumper is marked with a red arrow, for clarity, the bumper is removed
The battery must be disconnected.
conclusions
Knowing these points, you can independently identify the cause of the malfunction of the sound signal and eliminate it.
Before proceeding with the diagnosis and repair of the Renault Logan stove, we will briefly describe how ventilation and heating work for it.
It must be clearly understood that these systems work independently of each other.
So, heating and ventilation of the cabin, as well as the removal of frost and other types of moisture, is carried out separately from other systems. At the same time, the stove enters the heating system.
The main components of the heating system include a heater heat exchanger, also known as a radiator. The purpose of the radiator is to heat the air entering the cabin to a comfortable temperature set by the driver or passenger. The radiator heats up due to the circulation of coolant through it, which, in turn, heats up, removing heat from the running engine. The cooling system is closed and under pressure, so it can withstand temperatures over 100 degrees. With the help of an electric fan, you can control the intensity of the flow of warm air into the passenger compartment through the dampers of the air conditioner and heater.
This system also includes an electrically driven fan that provides and regulates the supply of outside air. Air is supplied to the dampers of the air conditioner and heater. The system also includes a damper for the air temperature regulator, which comes from the heater to the car interior. How you turn it will determine the amount of air that will pass through the heat exchanger of the heater, as well as the outside air that passes through the heat exchanger. It is also worth noting the air distribution flaps that come from the heater through the air ducts into the passenger compartment or in order to blow the windshield.
A little about the Renault Logan air conditioning system
The Logan air conditioning system is a compressor driven by a belt from the engine crankshaft pulley. The compressor pulley has a friction-type electromagnetic clutch that will disconnect the compressor shaft from the pulley or connect them when the air conditioner is running according to a certain signal from the electronic engine control unit.
During operation, the compressor compresses to a sufficiently high pressure the refrigerant vapor that will come from the evaporator heat exchanger. In this way, a significant reduction in temperature is achieved.
A pressure reducing valve is built into the compressor and can perform a protection function that is triggered when the pressure increase exceeds the value allowed at the outlet of the compressor itself. The reasons for the operation of the pressure reducing valve may include the failure of the valve, which is responsible for high pressure, as well as the failure of the electric fan. Other malfunctions are also possible.
Every year, engineers are trying to improve the design of engines, for the sake of efficiency and environmental friendliness of these units. In connection with this, the number of breakdowns associated with unstable, poor operation of the engine, up to its complete stop, is growing. Owners have repeatedly encountered the problem of poor engine starting, as well as its unstable operation. Of course, if it stalls, the first thing you do is contact a service station. In this article, we will talk about the most common malfunctions associated with the operation of the Renault Logan internal combustion engine, as well as consider methods for their elimination.
The most common faults
If the engine of your Logan does not start well or stalls at all, the following malfunctions may be the culprits:
- Faulty fuel pressure regulator.
- Bad spark due to the failure of the high-voltage part, namely candles, coils and wires.
- Incorrect setting of the gas distribution mechanism marks, as a result of which the fuel combustion phases operate out of sync.
- Faulty throttle valve that controls the air flow to the engine.
- Possible problems with the immobilizer, as a rule, the control unit loses communication with the key chip.
- If the motor stalls unexpectedly while driving, the quality of the atomization must be checked.
- Another reason that the engine stalls while driving may be a dirty fuel filter.
- If the engine does not start well or starts and immediately stalls, the breakdown may be related to the fuel pump.
- If it either starts up badly and after a while stalls at an unexpected moment, a failing one may be the culprit.
- Wear on the camshaft and its sensor can cause poor starting and subsequent engine operation.
Let's look at some of the reasons for the poor performance of the motor and try to diagnose these breakdowns on our own.
Diagnostics
- If the fuel pressure regulator is not working properly, it usually needs to be replaced. To verify its malfunction, it is necessary to unscrew the fuel return hose, and then turn on the ignition. If gasoline under high pressure is supplied from this hose, the regulator will not work accordingly. To eliminate a malfunction along the way, it is enough to plug one end of it, or press down on the return pipe, thereby reducing its cross section. Having done such work, you can easily get to the place of repair.
- In the case when the spark is not properly supplied to the cylinders, interruptions in the operation of the engine occur. To make sure that this unit is malfunctioning, you must have a special key on hand for unscrewing the candles. Having unscrewed the candles, it is necessary to connect them to the tips of the high-voltage wires and turn the starter several times. If the spark goes to the side or its strength is not enough, this assembly needs to be replaced. As a rule, a car with such a breakdown can get to the place of repair on its own.
Attention! Follow the safety rules when doing this kind of work. The high-voltage part of the car is very dangerous to life and health.
- If the timing marks are set incorrectly, the engine runs with significant interruptions, which have characteristic pops.
This malfunction cannot be eliminated without the proper equipment and tools. If this malfunction has befallen you on the road, do not try to fix it yourself. Tow the car to the nearest car service and only carry out repairs there.
- If the damper that regulates the air flow is faulty, there are several ways to identify this breakdown, as well as fix it. Unscrew the air supply pipe and inspect the throttle valve for integrity.
With the engine off, it should be in the closed position. If this does not happen, this node must be cleaned, and then adapted using computer equipment. As practice shows, this malfunction appears gradually and cannot simply arise on the road. Accordingly, such repairs should be done at a specialized service station.
- If it starts up and immediately stalls after a while, pay attention to the dashboard, namely for the glow of the immobilizer indicator lamp. If this indicator lamp flashes, the immobilizer unit has lost communication with the key chip. You can continue driving only by using another spare key to replace the old one.
With the help of special equipment, the key used can be written into the program of the immobilizer unit, but this is done on special equipment.
Tip: take a spare key with you if you go on a long journey.
- It is possible to check the operation of fuel injectors only at an equipped stand, respectively, such repairs are carried out by specialists.
- If the fuel filter is clogged in the car, of course, this element must be replaced. In case this situation befell you on the road and the engine stalls, there are some recommendations for detecting and eliminating this malfunction.
- Open the hood, then remove the fuel supply hose and turn on the ignition. If gasoline enters under low pressure, then the filter has poor throughput.
- To increase the throughput of the fuel filter, it must be removed and carefully blown in the opposite direction.
- Remove the fuel filter from the latches and perform some operations to clean the dirt from its housing. You can use a thin screwdriver and pierce the paper element through.
- Install the filter in place, then start the engine, if the engine starts up and runs smoothly, go to the nearest car service, where it will be necessary to replace the filter element.
- If suddenly the engine of your car suddenly stalled and will not start, you need to check the performance of the fuel pump.
To identify a malfunction of the fuel pump, it is necessary to open the hood and dismantle the gasoline supply hose. At this moment, it is necessary to turn the key to position 2, thereby closing the fuel pump relay.
If gasoline does not flow, the fuel pump does not work well and has become unusable. We cannot give any recommendations for its emergency repair, since this unit is changing as an assembly with the body. In such a situation, the car must be towed to the nearest service where repairs will be carried out.
- If the problem is related to the operation of the crankshaft position sensor, it is impossible to diagnose and fix this malfunction without special equipment.
Repairs should be carried out only in a specialized service.
- Diagnosis and repair of problems associated with wear of the camshaft, as well as its sensor, is carried out only in the software service.
Conclusion
This is how a brief overview of Renault Logan malfunctions turned out. If the engine of your Renault Logan stalls and does not start, use our article as a troubleshooting guide. We hope that our material will be useful to you.
In many ways, it is the interior heating and ventilation systems that create comfortable conditions in the car: they not only provide optimal temperature and air circulation, but also remove moisture and frost. Therefore, a breakdown of the stove has a deplorable effect on the condition of the car, in particular, its interior: the seats can become damp, the lining can swell, etc.
The device of the stove car Renault Logan
The heater is located under the dashboard in the central part. The main components of the heater are a fan, distribution dampers and a radiator.
The main components of the Renault Logan heater: 5 - distribution block; 6 - heater radiator; 7 - heater pipelines; 8 - fan resistor; 9 - front left air duct for heating the legroom; 10 - air recirculation control cable; 11 - air distribution control cable; 12 - air temperature control cable
heater radiator
The central unit of the heating system is the heat exchanger of the heater (stove), or radiator. The main function of the radiator is to heat the air entering the cabin.
The heater core is responsible for heating the air entering the passenger compartment.
heater fan
Air is actively supplied to the heater during movement through special openings in the lining of the front panel. When more intensive air supply is needed, the fan comes into play. The faster it rotates, the more air enters the heater systems.
The fan provides more air to the heater
In physics, a resistor is a passive element of an electrical circuit that can perform various functions: convert current into voltage and vice versa, limit current, absorb electrical energy, etc.
As part of the stove, the resistor is responsible for the operation of the fan, namely: it regulates the speed of rotation of its blades. The resistor is connected to the motor and distributes the current, typically providing four fan speeds.
The resistor allows you to adjust the speed of the heater fan
Why does a resistor fail?
The reason for the failure of the resistor is burnout. The fact is that it is constantly energized and transmits current. Experienced craftsmen, however, argue that the failure of the resistor may be due to malfunctions or contamination of the fan as a whole.
When the resistor fails, all the electrical current goes directly to the fan, and it only runs at the fourth, maximum speed. Therefore, diagnosing this breakdown for a motorist will not be difficult.
How the Renault Logan stove works
Air enters the car interior - both naturally and with the help of a fan. Air entering from outside can pass through the radiator, thereby heating up, or past it. It depends on the position of the damper, which is connected to the temperature controller.
The radiator heats the air entering the passenger compartment. This is due to the circulation, oddly enough, of the coolant. It removes heat from a running engine, heats up and, in a heated state, enters the radiator through special pipes. The maximum heating temperature can be up to 100 degrees - the system is closed and under pressure, which allows it to withstand such loads.
Heated air enters the passenger compartment through deflectors - special openings located in the center and on the sides of the instrument panel. The intensity of the air supply is regulated by the heater control unit.
Possible causes of a breakdown of the Renault Logan stove
Renault Logan car owners often face the following problems: the stove does not heat up or cold air comes out of the deflators, although the pipes (the ones through which the coolant heated from the engine goes to the heater radiator) are hot. There can be several explanations for this phenomenon:
- an air lock has accumulated in the pipe;
- clogged cabin filters or radiator cap;
- the fuses have failed;
- low-quality / used antifreeze or insufficient coolant level;
- the antifreeze expansion tank has become unusable (usually after 100 thousand kilometers), or its cover is loosely fixed.
Do-it-yourself Renault Logan stove repair
When a malfunction occurs, it is not necessary to immediately go to the service. Many breakdowns are not as serious as they seem, and you can deal with them yourself. And it is also worth noting that the Renault Logan stove is not completely replaced - it is enough to replace the failed part.
Troubleshooting
If “alarming symptoms” occur, it is necessary to sequentially check the condition of the antifreeze and the vehicle components described above. If air pockets are found in the system, they must be bled. Clogged filters and caps should be cleaned or replaced. The used antifreeze must be drained and filled with new. The expansion tank can also be changed; at the same time, it is better to leave the cover “native” - it will better hold pressure.
If the manipulations done do not give an effect, then the problem lies in one of the heater nodes.
Heater fan replacement
A sign that the fan is the source of the malfunction (the brushes are worn out or the electric motor is out of order) is a weak air flow from the deflectors or its complete absence. In this case, the fan must be replaced.
Replacing the fan of the Renault Logan stove is carried out in the following order:
We change the resistor
A sure indicator that it was the resistor that failed is the operation of the stove fan only at the fourth speed.
The resistor is located at the rear of the fan housing. You need to look for it in the area of \u200b\u200bthe pedal assembly (on the right side). This element is a white plastic rectangular “socket” to which a block with wires is attached. Replacing the resistor of the Renault Logan stove is carried out in the following order:
Installing a new radiator
Replacing the stove radiator on a Renault Logan is required if coolant begins to flow through it. Replacing a radiator is the most difficult and time-consuming process when repairing a car stove with your own hands.
The sequence of actions when replacing the radiator:
- Drain the antifreeze completely.
- Remove instrument cluster and console trim.
- Remove the carpet from the cross beam bracket and fold back the carpet.
First you need to remove the carpet
- Unscrew the bracket fastening (two bolts from the bottom and two nuts from the top).
Unscrew the bracket
- Release the bracket from the wires and remove it from the beam.
The final stage - remove the radiator mounts for the Renault Logan stove
- Replace the radiator and perform all the steps in the reverse order, not forgetting to first put on the rubber seals on the tips of the tubes.
Replacing the oven light bulb
The main problem with a faulty light bulb is that it can signal a broken stove, although the heater will function normally.
To change a light bulb, you need:
- Remove the radio cover and the buttons that regulate the operation of the stove.
- Unscrew the fasteners of the module and press its lower part, and pull the upper part towards you.
- Find the latches on the sides and wring them out.
- Peel back the panel and look for the burnt out light bulb.
- Replace the bulb and do all the manipulations in reverse order.
Prevention of furnace breakdowns
Of course, it is much easier to prevent the occurrence of malfunctions than to fix them. In order for the stove to work without failures, it is necessary:
- change the cabin filter regularly;
- use only high-quality antifreeze (official dealers recommend GLACEOL RX Type D 1 Renault 7711428132 from ELF) to avoid damage to the radiator and pipes;
- it is advisable to flush the entire system with water or a special liquid before the start of the season.
Using the simple, at first glance, methods described above, you can independently repair the Renault Logan stove. However, it is worth taking on this business if you are completely confident in your abilities and skill. Otherwise, you can not only not repair the stove, but also render the entire heating and ventilation system of the car unusable.
You can often hear the question why the sound signal does not work on Renault Logan. This is due to some features of its design. Therefore, quite often this device fails, in fact, this is a flaw in the development engineers. Such a malfunction can be found even on new machines. In this case, the problem without much talk will be fixed under warranty. But the repair is very simple. And in most cases it does not even make sense to visit an authorized dealer. Even if you do this little thing yourself, you will not be removed from the guarantee. It will take you half an hour to complete the repair.
Why does the sound signal not work on Renault Logan? To answer this question, it is necessary to consider in more detail the design of this device. The switch itself is located at the end of the high and low beam switching lever. This arrangement is not very convenient and causes criticism from many motorists. From it comes the switch wire to the horn. Which in turn is fixed in the engine compartment on the left side. A fuse is also used in the design.
Diagnostics
First you need to determine the source of the problem. There are only 3 reasons for the failure of the sound signal. We will consider them in more detail:
- We check the fuse. It burns out quite often. Affects the lack of design of this budget car. Most often, the fuse is damaged on 15 A (F17) from the unit located in the cabin. It is also necessary to check the mounting blocks in the engine compartment. There are fuses 60 A check the fuses F01 And F02. If the damage to the protective fuses occurs regularly, then the entire electrical circuit for which they are responsible should be checked. Somewhere there was a short circuit;
- We check the horn, for this you first need to move the chips with wires, sometimes it helps. The test itself consists in jumping the contacts of the horn. If it is working, then an audible signal will sound;
- The most difficult part of the diagnosis is checking the switch itself. This can only be done. In this regard, this structural element is transferred only after excluding all other reasons.
Switch repair
As already mentioned, the signal switch is located at the end of the switch. With a frequent transition in far-near modes, the wire from the contact group of the sound signal may fall off. Also, often the power wire just breaks. This is the reason for the low reliability of the signal. Consider the stages of work in more detail:
- The battery is turned off. This is done to avoid a short circuit;
- The plastic casing of the steering wheel is dismantled, for this you need to unscrew 2 hexagons;
- We remove the lever platform, it is attached with two self-tapping screws;
- We examine the sound signal switch. Pay attention to the condition of the red wire. Most often, it is broken off at the point of attachment to the contact group. If it is fixed normally (the soldering is intact), then most likely the reason is a broken wire. It should be replaced entirely;
- The old wire is soldered or a new one is installed;
- Reassembly in progress. After connecting the battery, check the operation of the sound signal.
