The device has become popular in recent years. Now even non-smoking car owners use the cigarette lighter. Indeed, in addition to its nominal purpose, the device performs a lot of functions. For example, various devices are connected to the cigarette lighter socket:
- power bank for mobile phones or tablets;
- charging for laptop and electronics;
- DVR;
- navigation system;
- electric pump that inflates the wheels.
When used correctly, the device works for a long time, but due to certain features it may fail. Read on to find out why the breakdown occurs, how to recognize the cause of the malfunction, replace the cigarette lighter or repair it on the Lada Granta model.
Connection diagram
Connecting the cigarette lighter is not difficult. The device is connected to the on-board network with only three wires.
- Black wire - the ground of the car is connected to the cigarette lighter body.
- Red wire – power is attached to a terminal at the end of the housing. This threaded clamp also serves as a fastening for the heater retainer, so power is supplied to it as well.
- Yellow wire – power supply for instrument lighting is connected to the lamp socket. Ground, which is supplied through its contact with the cigarette lighter body.
Basic methods
If the cigarette lighter is faulty or occupied by other devices, use non-standard methods for connecting the DVR. With their help, there will be no need to use extra connectors.
The DVR is connected in the following ways:
- through a lampshade located on the ceiling;
- to ignition;
- directly to the battery;
- to the radio power supply;
- to the inner surface of the cigarette lighter.
The most common methods used are connection through the lampshade and ignition.
Before installing the recorder in the car, you need to decide where to mount the device.
Let's consider two fastening options:
using a suction cup;
It is recommended to use the standard fastening method - with a suction cup, since the suction cup comes complete with the device and can be easily removed from the glass, unlike adhesive tape.
Lamp lighting
If the device is located on top, it is recommended to connect the DVR to the lampshade. This is the closest power supply point. To complete the task you will need the following tools:
- flat screwdriver and Phillips screwdriver;
- a set of cables with which the device will be connected to electricity;
- a set of fastening brackets with Velcro;
- insulating tape;
- soldering iron;
- female cigarette lighter socket (optional).
Wiring Guide:
- The upper lampshade is disassembled using a screwdriver with a Phillips or flat tip - depending on the type of fastener.
- The contacts of the lampshade and the recorder are connected plus to plus, minus to minus. You can connect the ends of the wiring to the lamp plug.
It is impossible to insulate wires; this is stated in all rules for using electrical equipment. A poor connection often causes interference in video recording and distorts the recording. To determine which wire to connect the lamp to the recorder using a multimeter, marking the wires will also help. Red is a plus. Black is a minus.
The standard plug for supplying power to the recorder does not fit - it is disassembled or an additional female cigarette lighter socket is purchased. It is recommended to entrust the analysis to a specialist with technical education or work experience. Safety when connected to the lampshade is ensured by the power module. It is sold in many stores.
To ensure maximum safety when connecting to a lighting device, a power module is used. It must be purchased separately from the set as it is not included in the package.
Design and operation
The cigarette lighter in a car consists of a chrome-plated metal body, a heating element with a coil of high resistivity material (nichrome or similar), a plastic push-button handle, and a coil spring inside the housing. The cigarette lighter socket is a steel cup with a bimetallic heater retainer on the end wall of the housing inside. The common wire of the car's electrical equipment (ground) is connected to the body of the cigarette lighter socket, and the power (+) is connected to the heater retainer. To illuminate the cigarette lighter socket in low light conditions, a light guide made of transparent greenish plastic is installed on the body, onto which a socket with a small light bulb is attached. One of its contacts is connected to the socket body, and the other to the wire that supplies power to the instrument lighting.
The cigarette lighter works as follows. One end of the heater spiral inserted into the socket is in contact with ground through the cigarette lighter body. When you press the handle-button, the heater is fixed with a bimetallic latch, to which at this moment the other end of the spiral is connected. The current flowing through the nichrome wire heats it up. This also heats up the bimetallic clamp, which, when a certain temperature is reached, straightens and ceases to hold the heater. Then the cigarette lighter button, under the action of a spring, breaks the electrical circuit of the heater with a characteristic click and jumps out.
Electrical appliance protection
The electrical wiring is protected from a short circuit in the cigarette lighter by a fuse link in the fuse box. It is denoted by CIG, cigar, or a pictogram depicting a smoking cigarette. The rating of this fuse is most often 15 A.
The device is protected from fire by a low-melting metal washer installed under the nut securing the power terminal. The principle of operation of this protection is as follows. When the nichrome spiral is overheated for a long time, the end of the socket body heats up to the melting point of the protective washer. Melting, the washer flows down and connects the power terminal to the body of the device connected to the common wire of the electrical equipment. As a result of this short circuit, the fuse-link burns out, the cigarette lighter is de-energized, and heating stops.
Common reasons for refusal
The reason why your cigarette lighter is not working may be due to the following faults:
- The fuse has blown.
- Broken filament coil.
- Fire protection activated. With this malfunction, the new fuse fails during installation. Triggering of fire protection often occurs due to accidental pressing and prolonged holding of the cigarette lighter button. What can happen, for example, when you try to reach an object that has fallen on the floor and rolled under the seat.
- Corrosion of power terminals and cigarette lighter ground.
Fuse problem
A blown protective component (fuse) is the main reason why a car cigarette lighter stops working. The electrical network must have a current of 15 A. In the event of a short circuit or the connection of powerful electrical appliances, the fuses will blow. To eliminate the malfunction, it is necessary to change the protective element and remove the excess load, otherwise it will burn out again.
Where is
For the Granta Liftback 2022, the fuses are located near the driver’s left foot.
To change the protective element, first remove the plastic cover of the unit, which is held in place by steel clips.
On the inner surface of the protective cover there is a diagram, the number of all fuses with information about what each of them is responsible for.
Which one can I put in place?
The new fuse is selected with a rating of 15 A. If you install a product with high resistance, problems will arise. For example, if a current flows through an electrical circuit exceeding the permissible value, the wires will melt. And this contributes to cable fires, short circuits, and, accordingly, burnout of protective components.
Cigarette lighter repair
To successfully troubleshoot the problem, you first need to determine why the cigarette lighter does not work. To do this, remove it from the socket and use a test light to check whether there is electrical power on the heater latch and whether there is ground on the body. It is better to do this with a control unit, because, unlike a voltmeter, it consumes current. Therefore, in the case of oxidized contacts, it will glow only at full intensity or will not light up at all. The voltmeter readings in this case will not differ from those taken from a working device, since in the absence of current there will be no voltage drop across the resistances of the oxidized contacts. Below we describe several variants of the results of this test.
Block under the hood
It is located next to the battery.
Photo - diagram
Description
Option 1
- 30A Low beam headlights or main relay, circuits protected by fuses F1 and F21 of the mounting block in the passenger compartment 50A Windshield heater
- 60A Generator
- 60A Generator
- 30/40A Heater fan (heater fuse grants)
- 50A Electromechanical power steering
- 60A ABS block
Option 2
- 60A Generator
- 60A Generator
- 30/40A Electric radiator cooling fan
- 40A ABS/ESP
- 25A ABS/ESP
- 50A Electric Power Steering Controller
Option 3
- 30A Low beam headlights or main relay, circuits protected by fuses F1 and F21 of the mounting block in the passenger compartment
- 60A Generator
- 60A Generator
- 30A Heater fan (heater fuse grants)
- 50A Electric power steering
Replacing the cigarette lighter
How to install a new cigarette lighter in a car if the old one is burned out and cannot be repaired? Let's look at the example of a VAZ 2108 car with a low instrument panel (old model).
- Buy a new car lighter.
- Using a flathead screwdriver, remove the plastic ends from the air damper control levers.
- Remove the screws securing the air damper control bracket.
- Pull it towards you and remove the knob from the fan speed control.
- Remove the screws securing the center console to the instrument panel (2 pieces on each side). Pull the console towards you and disconnect its connectors from the wiring harness.
- Remove the console.
- Using two fingers, press the sides of the bracket holding the backlight socket and remove it from the light guide of the socket.
- Press the plastic socket clamps with your fingers or a screwdriver and remove the assembly body from the console hole.
- Insert a new socket in place of the old one.
- Install the backlight assembly onto the light guide. Make sure that there is contact between the backlight bracket and the body.
- Connect the console connectors to the wiring.
- Check if the buttons, regulator and the unit you replaced are working.
- Put the console back in place.
- Attach the damper control bracket to it.
- Secure the console with self-tapping screws.
- Place the handles on the levers and the regulator shaft.
The replacement has been made.
If the cigarette lighter does not work, there may be several reasons for the problem. Read below about why the cigarette lighter does not work, how to remove it and how to change the device.
Grant's cigarette lighter stopped working
I decided to check the tire pressure and pump it up a little.
Why did I take a compressor (pump) from my dad’s car that runs from the cigarette lighter? Already knowing that the cigarette lighter was specific, I understood that the plug might have to be held. I walked around 2 wheels, held the plug with one hand, and turned the pump on and off with the other. Then, no matter how I twist the plug, it’s no use. Well, I thought that was it, the cigarette lighter had already burned out. I looked at the plug, took it apart, the fuse is fine. I plugged it in, gave the pump to my dad and pumped it up at a gas station. The next day I realized that the signal was not working
.
Since I had already read a little, I realized that the problem was most likely in the fuse. I opened it, looked, and the F20 at 15A
.
I went to Auto49, bought this F20 and a set of spare ones. Replaced it, the signal worked.
The most interesting thing for me is that, in theory, this fuse is responsible for the trunk lock, the box, and the diagnostic connector in addition to the cigarette lighter and the signal. I don’t know how everything else was listed, but the trunk lock definitely worked when it burned out.
The principle of operation of the cigarette lighter
A cigarette lighter is a special heating element that is often connected to the car battery. If this is so, then the device will work even if the ignition switch is simply turned on. In addition to its direct purpose, the plug is used as a charger for a mobile phone and other gadgets. Due to the fact that a splitter is often connected to it, this ensures simultaneous charging of several devices at once, including the DVR.
Multiple socket splitter
Which cigarette lighter should I replace the burned out one?
There are many different options available on the market. When choosing, you need to pay attention to how much the Lada Granta cigarette lighter costs. A price that is too low indicates that low-quality materials were used in the production process; such a device will not work for a long time. The normal cost of the device is 600 – 1200 rubles. You can buy a short European cigarette lighter. There are no uniform size standards for parts. Therefore, they will differ in length or diameter. You must select a plug of the appropriate size. If the diameter does not match, the device will short out, which can lead to a fire.
Typical malfunctions of the device
If the cigarette lighter stops working, there may be several reasons:
- fuse burned out;
- the filament has broken;
- fire protection has activated;
- corrosion of power terminals and device ground;
- The device used to lock, but now the button does not lock.
How to fix the cigarette lighter - below.
Convenient vehicle accessory
What does the automaker recommend?
In the operating manual of most modern cars you will find recommendations to use the cigarette lighter only for its intended purpose. No car manufacturer recommends using on-board sockets to connect external devices to the network. For example, such a connector should not be used to power a navigator, recorder, heaters, and so on. Such an extra load leads to rapid failure of the on-board network, short circuits and even fires in the wiring may occur.
Today in car dealerships you can find various plugs for powering external devices from the cigarette lighter socket. Despite all the assurances from sellers and manufacturers of such accessories, it will be impossible to ensure their complete safety. Such external interference and the use of electricity from the car's network is not only unsafe, but can also damage the battery and destroy the generator. Cars are not designed to withstand such an external load, and the consequences of such incorrect intervention will be sad.
Step-by-step guide to replacement and setup
Below you will find information on how to remove the cigarette lighter, how to understand its circuit, perform installation, and also how to disassemble the cigarette lighter.
Cigarette lighter connection diagram
Tools and materials
Installing and replacing the cigarette lighter requires the presence of some tools:
You can learn how to connect a cigarette lighter from the author of the video, Dmitry Maznitsyn.
Work sequence
You can learn how to change the cigarette lighter from the instructions described below.
- Disassemble the system only after de-energizing the vehicle. If the driver pulled out the cigarette lighter while the wires were connected, this could lead to a short circuit and even a fire, then the installation will not seem easy.
- When removing the device, you must be careful. When working, you need to use a small flat-head screwdriver. It is placed inside the part. Use the end of a screwdriver to press on the green latch and unscrew the sleeve. Then remove the glass part.
- Remove the device and carry out repairs. The installed device is placed in its original place. When connecting contacts, correct polarity must be observed to prevent short circuits.
Detail on a car dashboard
Photo gallery “Device repair”
You can find out how to solve one of the problems in the photographs.
Fuse and relay diagram
Old family
(until September 2022):
| Fuse | Current strength, A | Protected circuit |
| F1 | 15 | — Relay for turning on the engine cooling fan — Short circuit 2x2 — Controller (engine control unit) — Injectors — Ignition coil |
| F2 | 30 | Electric windows |
| F3 | 15 | Alarm |
| F4 | 20 | — Windshield wiper — Airbag |
| F5 | 7,5 | Ignition switch terminal 15 |
| F6 | 7,5 | Reversing light |
| F7 | 7,5 | — Canister valve — Mass air flow sensor — Oxygen sensor 1/2 — Speed sensor |
| F8 | 30 | Rear window defroster circuit |
| F9 | 5 | Side lights on starboard side |
| F10 | 5 | Side lights on the left side |
| F11 | 5 | Rear fog lights |
| F12 | 7,5 | Low beam on starboard side |
| F13 | 7,5 | Low beam on the left side |
| F14 | 10 | High beam on starboard side |
| F15 | 10 | High beam on the left side |
| F16 | 10 | Front fog lamp on starboard side |
| F17 | 10 | Front fog lamp on the left side |
| F18 | 15 | Heated front seats |
| F19 | 10 | ABS (Anti-lock Braking System) |
| F20 | 15 | — Horn — Trunk lock — Transmission — Cigarette lighter — Diagnostic connector |
| F21 | 15 | Electric fuel pump |
| F22 | 15 | central locking |
| F23 | 10 | Daytime Running Lights |
| F24 | 7,5 | Air conditioner |
| F25 | 10 | — Interior lighting — Brake light |
| F26 | 25 | Anti-lock braking system |
| F27 | — | Spare |
| F28 | — | Spare |
| F29 | — | Spare |
| F30 | — | Spare |
| F31 | 50 | Heated windshield |
| F32 | 30 | — Heater — Electric power steering |
Relay:
| Relay | Description |
| K1 | Heater fan relay. |
| K2 | Power window relay |
| K3 | Starter relay |
| K4 | Ignition switch terminal 15 relay |
| K5 | Turn signal and hazard warning relay |
| K6 | Wiper relay |
| K7 | High beam relay |
| K8 | Horn relay |
| K9 | Low beam relay |
| K10 | Heated rear window relay |
| K11 | Controller relay (engine control unit) |
| K12 | Electric fuel pump relay |
Lada Granta mounting block under the hood:
| F1, 50A | Electric power steering; |
| F2, 30A | Heater fan |
| F3, 60A | Generator |
| F4, 60A | Generator |
| F5, 30A | Dipped headlights. |
New family
(from September 2022):
Attention!
The relay and fuse diagram may differ depending on the configuration and production date of the vehicle. Current diagrams of the mounting block are presented in the operating manual for the date of manufacture of the vehicle ().
Let us remind you that you will find other useful instructions in the section Repair and operation of the Lada Granta.
Keywords: mounting block Lada Granta | Lada Granta torpedo
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Video “Fixture Repair”
Cigarette lighter repair is covered in detail in the video from the author Alexander Zagorny.
Poor performance of any piece of electrical equipment in a car should cause some concern and careful examination of all parts of this important unit in your car. If the cigarette lighter in your car does not work, you need to check the main wires, connections and equipment that are associated with this element. Often the cause of such a breakdown is the direct combustion of the cigarette lighter head itself.
This element of the automotive electrical system today is used not so much for lighting cigarettes, but for charging phones, connecting GPS navigators, recorders and other devices. The cigarette lighter is a full-fledged car socket if you have an adapter to connect your devices. Therefore, its normal operation must be ensured.
The nuances of manipulating the power unit
To correctly replace an element in a LADA Granta, you should use specific rules and know where the so-called fuse box is located. If a burnout occurs, do not rush and replace the failed part with an analogue one. It is recommended to check the serviceability of the current collectors protected by this fuse.
We replace the element that contains the fuse box in strict accordance with the requirements of the circuit. There is no need to resort to installing fuses designed for a higher current limit, as this can cause a fire. It is also necessary to disconnect the negative voltage from the battery.
Lada Granta equipment standard equipment
Lada Granta Granta standard
Lada Granta luxury
The main causes of cigarette lighter failure and their solutions
If the immediate first function of this device is important to you, try replacing the cigarette lighter head. This is the first and simplest action that should be performed in this situation. With intensive use, the heating coil burns out and stops performing its tasks. But this process should be carried out carefully - buy only the head that fits your car model.
If this process does not help, you should look for the cause of the problem directly in the electrical network that connects the cigarette lighter. To do this, you need to check all connections and make sure there are no burnt wires or connections. The main factors that are worth checking in this aspect are the following:
- the functionality of the fuse that is responsible for the operation of the cigarette lighter;
- integrity of all electrical connections of the equipment itself, wires on the cigarette lighter body;
- absence of carbon deposits and foreign particles in the cigarette lighter socket and on the contacts;
- serviceability of the plug when connecting certain devices to the cigarette lighter;
- absence of overloads on this unit during its operation.
These tests will help you identify the faulty unit. The easiest check is related to the fuse box. Check your car's owner's manual to see which fuse controls the cigarette lighter. Then replace it with a known working element of the electrical system and check the operation of the device.
To check for oxidation of contacts or the presence of foreign objects in the socket, it is enough to visually examine the equipment, and if there are blockages, remove them using non-metallic objects. In all other cases, you will have to remove the cigarette lighter from its installation location and check the electrical connections.
Talk and show: how not to burn your car
What can and cannot be plugged into a car cigarette lighter socket? On-board 12 V sockets, a burnt-out Honda and precautions - this and not only in our educational material.
Several years ago, an intriguing story appeared on many TV channels: a lady’s Honda Civic burned down. They say, I started charging my mobile phone, and then there was smoke, a stench and a full guard... In general, an unpleasant story. But who is to blame?
The television people who rushed in for an interview were openly offended by us: our opinion disappointed them, and the expected scandalous sensation did not happen. Because, in our opinion, no Honda is obliged to be responsible for the behavior of a device unknown to it. Humanly speaking, of course, one can sympathize with the lady, but the obvious culprit of the fire was a charger of unknown origin. And car manufacturers, as a rule, prohibit plugging everything into a socket - and rightly so. Those who disagree with this can mentally put themselves in their place: would you allow it? That's it - it's better not to...
In that story, the court sided with the car dealer’s representatives and rejected the claim. The reason was “violation of vehicle operating rules.” Arguments like “Everyone does this” don’t count: you have to answer for yourself personally.
Plugs of various devices - find two identical ones... And if you take into account that the sockets are also far from identical, it is clear why the possibility of a bad contact is not at all far-fetched. And why, by the way, do car manufacturers prohibit using just anything in their cars?
Plugs of various devices - find two identical ones... And if you take into account that the sockets are also far from identical, it is clear why the possibility of a bad contact is not at all far-fetched. And why, by the way, do car manufacturers prohibit using just anything in their cars?
What can you plug into a car socket anyway? Unfortunately, there is no clear distinction between what can be done and what cannot be done. We conducted research on this topic, but the results were not clear. Some car manufacturers only allow the use of devices with their own brand on the label, others nod to mandatory compliance with the requirements of a certain SAE standard (and which car owner has seen it?), others categorically prohibit the use of the cigarette lighter socket for any unauthorized consumers, others stipulate the maximum current consumption...
It is necessary to distinguish the cigarette lighter socket from the on-board socket. Historically, the cigarette lighter appeared earlier - almost a hundred years ago. On the same Zhiguli, for example, there were no sockets - however, there were no gadgets for sale in those days either. Today we are actively fighting smoking, and therefore cigarette lighters are becoming a thing of history. But there are several sockets in a car.
At the same time, a lot of problems are caused by discrepancies in the designs and sizes of both the sockets themselves and the plugs. In particular, in a regular socket there is no bimetallic spring-grip for the cigarette lighter. In practice, many plugs like to jump out of their socket or, worse, make bad contact.
Manufacturers of gadgets use different plugs - it was this circumstance that, in our opinion, was the cause of the car fire mentioned above.
Fan heaters of different types. The power of the models shown is from 150 to 200 W. The actual current reaches 15 A - this is a lot. In case of poor contact, local heating is guaranteed. In addition, such devices are usually forgotten to be turned off, since they are intended for long-term use. And taking into account the fact that the real benefits of such heaters are ridiculous, it is better not to use them unless absolutely necessary. However, as for the benefits, this is my personal opinion.
Fan heaters of different types. The power of the models shown is from 150 to 200 W. The actual current reaches 15 A - this is a lot. In case of poor contact, local heating is guaranteed. In addition, such devices are usually forgotten to be turned off, since they are intended for long-term use. And taking into account the fact that the real benefits of such heaters are ridiculous, it is better not to use them unless absolutely necessary. However, as for the benefits, this is my personal opinion.
Why didn't the fuse blow on that car? By the way, usually its nominal value is 15 A, less often - 10 A (in Zhiguli they used 16 A). Now imagine what happens if for some reason the device consumes a similar current for a long time, and the contact “sparks”.
Solid power begins to dissipate in the outlet, which quickly heats up and... well, the rest becomes clear. If there is thermoplastic around that is afraid of heating, then exactly what happened to the lady will happen. The fire was not a fire, but the torpedo melted.
In this case, the current can remain within the tolerance limits - this is not a short circuit! On my own behalf, I’ll add that in practice, fuses can often easily withstand increased current: this is not good, but - that is what it is...
Even if the likelihood of a fire is low, you should never provoke it. And we do this often. Below are the advice of a man who once survived a full-fledged fire, losing... Okay, I don’t want to remember.
Dismantling and repairing the electrical connection of the cigarette lighter
If none of the above works, you will have to remove the cigarette lighter socket itself and look at the integrity of the electrical connections. This task must be performed with the utmost care so as not to damage the delicate contacts and also not to spoil the visual appearance of the socket. Often this item is chrome plated, making it difficult to remove.
Each car has its own characteristics of disassembling this unit. If you can reach the back side of the panel and push the socket from the inside, this dismantling option will be the easiest. Otherwise you will have to do the following:
- find a tool with rubberized tips - these can be special pliers;
- if you don’t have such a tool, use regular pliers, but place a soft cloth under the tool;
- pull the different edges of the cigarette lighter one by one and slowly pull it out of the installation location;
- you should not put too much effort, because you can damage the plastic elements of the panel and ruin the appearance of the metal;
- After dismantling, provide a high stand under the cigarette lighter socket so that it does not hang on thin wires.
This will help you remove the device socket safely and without damage and gain direct access to the wires. If you have reached this stage, then most likely you will find one sealed or burnt wire on the case. It needs to be soldered in place to ensure proper operation of the equipment.
If you find a burnt wire, you will have to work hard. In such a situation, the easiest way out is to contact automotive electrical specialists and get the necessary services from them. This will help eliminate the hassle of digging through electrical wiring and will give you the desired results of your cigarette lighter working well.
If you are missing one cigarette lighter, you can install another socket, as the hero of the following video did:
We act in the salon
- The fuse box is located on the left side of the instrument panel. Remove the cover with the outdoor lighting mode switch integrated into it. If the work is carried out on the LADA Granta “Lux” and “Norma” modifications, then do not forget about the need to disable the button used to unlock the trunk lock.
- Armed with the diagram, we determine whether the cigarette lighter fuse or the fuel pump fuse has become unusable, and so on. We look at the integrity of the thread and draw the appropriate conclusion. If the element is unfit, then we replace it with a new analogue by fixing it in the mounting socket. We repeat this action with the entire list of blown fuses.
- We connect the “minus” back to the battery and check the functioning of the electrical unit in which the fuse was replaced.
The process of replacing the specified elements, which contain the fuse block, of the engine compartment of the Lada Granta is implemented in a similar way. The cover on the safety module is removed using a simple action - just pull it up and quietly replace the marked elements.
The device has become popular in recent years. Now even non-smoking car owners use the cigarette lighter. Indeed, in addition to its nominal purpose, the device performs a lot of functions. For example, various devices are connected to the cigarette lighter socket:
- power bank for mobile phones or tablets;
- charging for laptop and electronics;
- DVR;
- navigation system;
- electric pump that inflates the wheels.
When used correctly, the device works for a long time, but due to certain features it may fail. Read on to find out why the breakdown occurs, how to recognize the cause of the malfunction, replace the cigarette lighter or repair it on the Lada Granta model.
Let's sum it up
All processes for restoring the operation of the cigarette lighter socket are performed independently. Only if one of the wires connecting the equipment is burned out, you will have to contact specialists with a request to replace this wire. In all other situations, it is enough to use your own strength and quickly fix the problem using a soldering iron or simply replacing the fuse or cigarette lighter head.
If your car has non-working electrical equipment, it is worth finding out the causes of the breakdown and eliminating them. This will increase the operating comfort of the vehicle and make the machine safe to use. Have you ever had problems with your cigarette lighter?
When do you need to adjust headlights on a Grant?
The main motive for working with headlights is insufficient road lighting. There are many reasons for this:
- From the factory the car comes with a low beam adjusted for the driver's weight of 75 kg . This is a universal setting - if your weight is different, you need to adjust it immediately after purchase;
- the hydraulic corrector has failed - when it breaks, the headlights either shine crookedly or are not adjusted at all;
- Driving over bumps and potholes over time leads to changes in the settings of the light beam;
- buying a car second-hand - it is not known exactly how the lights were set up by the previous owner.
What you need to know about fuses
Fuses are designed to protect electrical equipment from overvoltage and short circuit.
New fusible protective devices are smaller in size. The following Grant models are equipped with them:
The difference between the schemes in the Standard, Norm or Lux trim levels is insignificant, and is primarily due to the installation of additional equipment.
A total of 32 fuses are installed in the mounting block, which is slightly more than in older versions. Those of them that are located in the cabin are responsible for the operation of various circuits with relatively low power.
The power ones, as previously noted, are placed in the engine compartment. This was done to ensure a greater level of safety and ease of maintenance of the vehicle.
The manufacturer expressly prohibits the use of protective devices during replacement that do not correspond to the nominal ratings of those indicated in the diagram. In particular, exceeding the maximum values leads to overload of the circuit and subsequent failure of the equipment powered by it. All this most often leads to fire.
Relay from 2022
| K1 | 50A | Ignition switch unloading relay |
| K2 | 30A | Additional starter relay |
| short circuit | 30A | Windshield wiper relay/auto start relay (optional) |
| K4 | 30A | Maximum speed radiator fan relay (optional) |
| K5 | 30A | Relay for turns and hazard lights / Relay K15A (autostart) (optional) |
| KB | 30A | Heated rear window relay |
| K7 | 20A | High beam relay |
| K8 | 20A | Horn relay |
| K9 | 20A | Low beam relay |
| K10 | 20A | Air conditioning compressor clutch relay (version with air conditioning or climate control) |
| K11 | 20A | ECM main relay |
| K12 | 20A | Fuel pump relay |
| K13 | 20A | Seat heating relay (optional) |
| K14 | 70A | Heated windshield relay (optional) |
| K15 | 20A | Alarm relay |
| K16 | 30A | Hazard power relay/reverse lamp relay (optional) |
| K17 | 30A | Power window power relay/radiator fan relay in auto start mode (optional) |
| K18 | 30A | Minimum speed radiator fan relay (optional) |
How to replace the horn on a Lada Granta?
The performance of key components and mechanisms in your car is the basis for its safe operation. Such important devices installed on board domestic vehicles include a sound signal.
The Volzhsky auto industry, releasing new models of its cars, equips them with standard signaling devices of type 20.3721. Similar signals are also installed on the Lada Granta. But due to its low sound quality and frequent breakdowns (especially after moisture), many car enthusiasts strive to install a higher quality and “melodic” signal on the Grant.
As an alternative, Volga signals on Granta are especially popular, tested by time and the experience of many drivers. The signal from the Volga actually sounds louder and is more reliable in operation, but replacing the standard signal with a Volga signal requires the driver to have some knowledge of electrical equipment. If you follow the rules for installing electrical wiring, the installation of signals from the Volga to Grant will be done quickly and as correctly as possible.
Replacing the signal on Grant - from simple to complex
Features of the first mounting block
Once you know where the blocks are, you can talk about their features. Another significant difference between the Lada Grant and representatives of previous generations is its numerical composition. Now it is equal to 32 units. For a detailed understanding, you will need to carefully familiarize yourself with the block diagram. For example, fuse F1 has a function to protect the circuits of such current collectors:
- ignition coils;
- nozzles;
- motor and fan control unit.
Element F2 is responsible for the safety of the electrical power window mechanism circuits.
F3 and F4 respectively “monitor” the safety of circuits belonging to:
- hazard warning lights and windshield wipers;
- airbag.
Elements F9 and F10 are “entrusted” with controlling the wiring to the side lights.
It is important to remember that each safety element has a current limit that it can withstand.
- F8, “standing guard” of the rear window heating circuit, is designed for a maximum of 30 Amps;
- F6, which controls the operation of the reversing light, can only withstand 7.5 A.
It is easy to guess that these values of this parameter are directly dependent on the required electrical consumption of a particular pantograph.
To familiarize yourself in detail with the circuits and the fuses that protect them, it is recommended to resort to the diagram (Fig. 3).
