Diagram and pinout of the Niva 4x4 instrument panel (VAZ 2121, 2131) » Lada.Online

Niva 4x4 instrument panel diagrams

Schematic electrical diagrams, connecting devices and pinout of connectors
1 – plug connector block with conditional numbering of plugs; 2 – tachometer; 3 – voltage stabilizer; 4 – instrument cluster lighting lamp; 5 – coolant temperature indicator; 6 – fuel level indicator; 7 – resistor 470 Ohm, 0.25 W; 8 – resistor 36 Ohm, 5 W; 9 – warning lamp of the toxicity reduction system;

10 – control lamp for heated rear window; 11 – fog light indicator lamp; 12 – control lamp for high beam headlights; 13 – indicator lamp for external lighting; 14 – indicator lamp for direction indicators; 15 – voltmeter; 16 – brake fluid level warning lamp; 17 – diode IN4002;

1 – tachometer; 2 – voltage stabilizer; 3 – instrument cluster lighting lamp; 4 – coolant temperature indicator; 5 – fuel level indicator; 6 – warning lamp of the toxicity reduction system; 7 – indicator lamp for heated rear window; 8 – fog light indicator lamp;

9 – control lamp for high beam headlights; 10 – indicator lamp for external lighting; 11 – indicator lamp for direction indicators; 12 – voltmeter; 13 – brake fluid level warning lamp; 14 – oil pressure warning lamp; 15 – differential lock warning lamp; 16 – fuel reserve warning lamp;

Let us remind you that on the website you can find reports on the modification or repair of a domestic SUV.

Key words: 4x4 instrument panel

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9.12.1 Design features of the instrument cluster

That’s why I’ll post the pinout for everyone else, so as not to rack their brains in the future. However, mechanical modification was not part of the task, the client was satisfied, and the last drawback - the discrepancy between the readings of the “fuel level sensor” and the actual remaining fuel in the tank due to the different geometric shape of the latter, will hopefully be eliminated in the near future.

Because of this, in order to see the outer lamps in the bottom row, you need to move your head slightly forward as the car moves. Their round scales are located in the center of the shield. MenuNode “Links”, tree. Diagram and pinout of the instrument panel of Niva 4x4 VAZ. All control devices of the car are combined into an instrument cluster.

Source

Installation of the VAZ 2110 dashboard on Lada 4×4 (VAZ 2121, 2131)

Lada 4×4 has been produced for more than 39 years and during this time the interior of the domestic SUV has remained virtually unchanged. However, you can make the car interior more comfortable with the help of various modifications. For example, install a more modern instrument panel from a VAZ 2110 on a Niva.

You will need: a VDO instrument panel with catalog number 21150-3801010, an instrument cluster trim (article: 21214-5325124-00), a speed sensor, for a carburetor Lada 4×4 you also need a gasoline level sensor from the injection system, at least 8 female terminals , wire 0.75 about 10 m.

We remove the old dashboard. The white and red blocks of the new instrument panel have a different pinout (see diagram of the Lada 4×4 panel), so the main task is to reconnect the wires in the right order.

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The differential lock was connected to the choke lamp. For turn signal lamps, additional wires should be laid from the hazard warning button. The wires for heating the rear window (green-red), rear foglights (orange-black) and turn signals (blue-white) remain unused.

We install and connect the speed sensor (the pinout of the sensor is on its plug). We connect the positive wire from the speed sensor to the upper left fuse box, and take the negative wire from the pin that holds the panel. And we bring the signal wire to the instrument panel.

It is worth noting that after installing the instrument cluster from the VAZ 2110 VDO with two windows, we not only get a more modern SUV interior, but also the ability to display the outside temperature, clock and voltmeter on the panel.

By the way, do you know how to tune a VAZ 2110 panel? For example, install an overlay, wells or tint!

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Electrical Harness System

Due to the ignition system, a spark appears in the cylinders corresponding to the current power strokes. In modern engines, wires go to sensors that are responsible for monitoring several indicators:

Motor temperature. Ignition, and so on

The injector also becomes an important part. The ignition system harness is in most cases connected to several other parts:

The ignition system harness is in most cases connected to several other parts:

Next, the wires are sent to the rear harness. Moving on to the engine compartment, the main harness splits into two wires. Of these, the largest is sent to the radiator, connecting with the following components along the way:

1. DMRV.
2. Crankshaft sensor.
3. Resistor.
4. Electric fans.

Through the power steering pump, other wires are thrown from the core, going to additional sensors:

• phases;
• idle move;
• throttle valve;
• detonation;
• injectors - a fuse for them is not added to the system.

The second core goes up, after which it is divided into two parts. The wires to the plus and minus go to the right. The battery is also located there. To the left they connect to the adsorber, fuel pressure sensor and oxygen sensor. This is how electrical wiring is arranged in most cases.

A branch from the harness may go to the air conditioning fuse if the car is equipped with such equipment.

If even one part of this system shorts, there is a high probability that the engine simply will not start. The controller stops seeing information regarding temperature, fuel supply to the injectors, and throttle valve position.

Under such circumstances, it is better not to resort to diagnostics, but to replace the entire harness at once. It may take too much time to find one wire, and the result will be questionable. The wiring works better when new.

Purpose of the device.

A speedometer is installed on the Niva's instrument panel, which is necessary to display the current speed of the car. In the event of a malfunction, driving becomes difficult as most roads have speed limits that must be followed. In addition, a malfunction of the speedometer can affect the calculation of other data by the on-board computer. Based on the DS data, the required fuel consumption is determined and gasoline savings are ensured while idling.

Therefore, it is necessary to carry out diagnostics as soon as possible and identify the cause of the breakdown.

Tuning options

The choice of options for tuning is not particularly large:

1. Install a device from another car. In this case, you will need the services of a qualified electrician, since the connectors will have to be redone. You can also install a digital version of the tidy - it will be more than original.
2. As a tuning option, you can install LED bulbs instead of regular ones. Many car owners choose this option because it is less expensive and the easiest to implement.
3. Another tuning method is to install original instrument scales on the speedometer, tachometer and other sensors. Moreover, you can buy such scales either ready-made or make them yourself in accordance with your preferences.

Location.

On Niva DS is installed on the gearbox. This allows data to be read only while driving, turning off when the engine is in neutral.

The device itself consists of a plastic case, inside of which electronic components are located. For proper operation, it is placed in close proximity to the shaft. There is a built-in magnetic bar inside the shaft that creates electrical signals when rotated.

The product is quite fragile, so when dismantling or installing you must be extremely careful not to damage its body.

Circuit breakers

The block of protective devices in Niva is a board on which disposable fuses are installed, containing a fuse inside.
Each of them protects one or more electrical circuits from overvoltage. The unit is located in the cabin on the left side. Protective equipment is numbered. So, 1 is responsible for the work:

• windshield washer;
• stove fan;
• cleaners for all headlights;
• heating, wiper and washer for tailgate glass.

Fuse number 2 controls:

• turn signals, their operation in emergency mode, relay-breaker;
• reversing lamps;
• front windshield wipers;
• dashboard indicators (coolant and oil level, carburetor valve position, parking brake);
• indicators of fuel reserve and antifreeze temperature

3-4 – protect the circuit of the left and right high beams, respectively;

5-6 – low beam.

7 – fuse controls the following elements of the Niva electrical circuit:

• dimensions (rear right and left front);
• license plate illumination.

• lighting of the dashboard, cigarette lighter, interior light switches;
• other marker signals.

9 – the fuse is responsible for:

• turn indicator;
• relay-interrupter and alarm indicator;
• contacts for turning on the rear window heater;

• horn;
• socket;
• interior light;
• rear brake light.

• fog light (rear);
• headlight cleaner motor (start, return to initial position).

16 – is responsible for the operation of the cigarette lighter.

Another block is located in the engine compartment. There fuses are responsible for:

Checking the sensors.

In order to check the DC, you need to have a multimeter, then follow a certain procedure:

1. Turn off the sensor.
2. We connect the red (positive) probe to the DC contact.
3. We connect the black (negative) probe to ground.
4. We fix a tube of suitable diameter onto the shaft in order to be able to rotate it.
5. We switch the multimeter switch to low voltage measurement mode.
6. It is necessary to rotate the shaft and observe the readings: as the speed increases, the readings on the multimeter display will increase. If the readings do not change, the sensor is faulty.

Another method does not require removing the sensor. To do this, you need to jack up one wheel so that it is at a distance from the ground and can rotate freely. After this, you need to connect a multimeter to the DC connectors. You need to rotate the wheel and observe the readings of the device. A change in voltage will also indicate performance.

Chevrolet Niva dashboard lights do not light up: reason

Check the items.

1. Light fuse. The insert is located inside the cabin unit under number F8. If the part is intact, you should move on.
2. Using a multimeter, we check the voltage at the contacts of the mounting block - a circuit break can occur here.
3. Next, the wiring is diagnosed. It is recommended to clean the terminals, check the tightness of the pads and the integrity of the wires.
4. If everything is in order, the tidy is removed and the light bulbs themselves are checked.

The Shnivy instrument panel does not work, but the backlight is on

The next situation is exactly the opposite. In this case, the actions are similar, but with minor amendments.

1. Initially, you should check fuse F2, which is responsible for the operation of the shield. If there are no problems here, we move on.
2. All wiring and contact groups are checked for the presence of oxides, damage and loosening.
3. After this, the panel itself is checked. It is noteworthy that the device is not repairable. If a burnt-out area is found, the entire board should be replaced.

Replacement.

To remove the DS, you need to place the car on a level surface. After this, it is best to disconnect the battery terminals to avoid errors in the BC.

Disconnect the wire terminals; to do this, press the plastic lock on the block. After this, use a wrench to unscrew the sensor from its seat. If you cannot unscrew it immediately, it is not recommended to use excessive force. You need to treat the threaded connection with WD-40, wait a few minutes and continue dismantling.

Installation of a new DS is carried out in the reverse order. When purchasing a new part, you need to pay attention to the external condition: the contacts must be treated with a sufficient amount of varnish, as this protects them from moisture. After completing the work, it is necessary to reset the on-board computer errors in order to remove the CHECK ENGINE error.

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As for its location, look for the DS in the engine compartment in close proximity to the exhaust manifold. To be honest, the place where it is installed cannot be called ideal. While the car is running, the manifold heats up. The sensor wires rub against it, which over time leads to malfunctions and short circuits.

It doesn’t matter whether you have an injection car or a carburetor with a Europanel - the connection of the speed sensor to the instrument cluster is identical.

Replacing the VAZ speed sensor: step-by-step instructions:

1. Drive into the pit - it will be more convenient to work from below - and wait until the engine cools down.
2. Turn off the vehicle's power by removing the cable from the negative terminal of the battery. Do not close the hood after this, this will provide you with lighting.
3. Locate the speed sensor on the transmission. Clean it and everything near it with a rag to remove any dirt.
4. By pressing the spring clip, disconnect the wire block from the sensor.
5. Dismantle the sensor itself by unscrewing it counterclockwise - with your fingers or an open-end wrench to “22”.
6. Carefully, so as not to break anything, install a new part in place of the removed part. Connect the wire block to it and the procedure for replacing the speed sensor can be considered complete.

How to properly connect a new DS? It is important here that the device rod fits correctly into the fixing sleeve, otherwise rotation will not be transmitted to the sensor. If the sensor fits into the socket the first time, then everything is in its place, and if something prevents it from moving, then the rod did not fit into the bushing.

Ignition system

The operation of the internal combustion engine installed on the VAZ 2121 car is based on a classic scheme, a video of which is shown in driving courses:

1. The generator produces electric current;
2. The ignition coil increases its power;
3. The ignition distributor supplies electrical impulses to the spark plugs when the piston reaches TDC;
4. The spark plugs ignite the air-fuel mixture in the engine cylinders.

Factory wiring diagram of VAZ 2121: elements of the ignition system

The photo shows the following components:

1. From pos. 3 to 12 – ignition coil and its structure;
2. From pos. 13 to 20 – spark plug;
3. From pos. 21 to 42 – ignition distributor (distributor).

For reference: The distributor slider, which is responsible for closing the contacts with the high-voltage wires going to the spark plugs of each cylinder, is shown separately. In the diagram presented, it is indicated by pos. 41-45.

Engine modernization

The all-wheel drive transmission of the VAZ 2121, in addition to significant advantages, also had domestic disadvantages. In particular:

1. Fuel consumption was quite high compared to passenger cars (13.4 liters per 100 km in urban conditions and off-road);
2. This was reflected in operating costs - the price of 1 km was much more expensive for the owners. And the power of the existing engine was insufficient for harsh off-road conditions.

For reference: the automaker, by modernizing the existing engine, increased its technical parameters. In particular, the volume increased from 1480 cubic meters. cm up to 1680 cc see Cars with such a power unit received the factory index VAZ 21214.

An increase in engine displacement and the use of a non-contact ignition system led to the need to modernize the electrical circuit in the engine compartment. Replacing the VAZ 2121 wiring solved this problem completely.

Electrical wiring for VAZ 21214 installed on a car with a 1680 cc engine. cm

Ignition system modernization

Since the high-voltage coil is traditionally responsible for the sparking power, the automaker has made changes to its operation. In particular, the wiring on the VAZ 2121 was supplemented with a harness that connected the switch and other components of the ignition system.

Contactless ignition system VAZ 21214

This factory manual contains:

1. Ignition switch acting as an electrical circuit switch with pins 30/1 and 15;
2. Ignition relay with pins 85,86,30 and 87;
3. Switch with 6-pin terminal block;
4. Upgraded ignition coil with terminals “B” and “K”;
5. Distributor (ignition distributor);
6. Candles.

Dashboard

For subsequent modifications of the VAZ 2121, the instrument panel was thoroughly redesigned. In particular, the design and location of the warning lamps have changed, and new scales have appeared on the instrument panel indicators.

Original wiring diagram for VAZ 21214 – instrument panel and warning lamp harness

Conclusions: the owners of the VAZ 2121 car often serviced it themselves. And servicing electrical systems is impossible without original circuit diagrams. This was especially true for modernized versions, where changes were made to the operation scheme of components and assemblies.

How to check the VAZ speed sensor

A failed speedometer sensor in a VAZ car is easily determined - in this case, the speedometer stops working, and it may also show some signs of life, but display incorrect information.

Using a tube, pliers or other available tools, rotate the sensor axis. In this case, you should see the voltmeter readings changing: the higher the speed, the higher the voltage (from 0.5 to 10 V). If this does not happen, the sensor requires replacement.

What to do if the headlights blink at idle

Having superficially understood the principle of supplying voltage to electrical appliances, we can conclude that the flickering of the light is most likely due to a malfunction of the generator. To make sure of this, you need to check the generator voltage, which can vary depending on the make of the car, but is usually in the range from 14 to 15 Volts.

If, as a result of checking the generator, it was discovered that its voltage does not correspond to the recommended values, two options are possible:

• The alternator voltage is higher than recommended by the vehicle manufacturer. In such a situation, it will be necessary to replace the generator; most likely, it has failed;
• The alternator voltage is lower than recommended by the vehicle manufacturer. You can try tightening the belt drive that goes to the generator from the engine pulley.

It is worth noting that in some service centers specialists repair the generator. You can try contacting specialists who will check the device on a special diagnostic stand and determine whether it can be repaired or better replaced.

Note that on some passenger cars with diesel engines, the problem of light flickering at idle is “generic”. Cars come with this problem from the factory, and it can be considered a design feature of the car model, since the problem cannot be fixed. To be fair, it is worth saying that the headlights of such cars blink at idle only up to a certain engine temperature. When it warms up, the malfunction no longer bothers the driver.

It is extremely rare that the problem with flickering headlights at idle is associated with pinched wires leading to the lighting fixture. If only one headlight flickers when the engine is idling, it is recommended to remove it from the car and inspect: wires, bulb, socket and other elements on which its operation depends.

If the problem with blinking headlights is not due to a faulty alternator, we can assume that the problem is in the general wiring of the car. In such a situation, you need to contact a specialist service center, but you need to take into account that searching for faulty elements in the wiring is a long process that will require a lot of time for the technician and, accordingly, the car owner will need to pay a lot of money for the work.

A few words about warning lamps

Why are indicator lights needed on the instrument panel? With their help, Chevrolet Niva gives the driver signals that a failure has occurred in one of the systems. It looks like this:

• a lamp in the form of an oil can indicates that there is insufficient pressure in the engine lubrication system (may be due to damage to the crankcase, a malfunction of the oil pump or the sensor itself);
• the light with the image of the battery turns on when the battery stops receiving charging from the battery (the voltage regulator may fail or there may be an open circuit in the generator circuit);
• a lamp in the form of a circle with an exclamation mark inside lights up when the level of brake fluid in the expansion tank drops below normal (it is better not to continue driving until you find out the cause of the fluid leak);
• a light bulb in the form of a schematic engine - “CHECK” may indicate the failure of any sensor, malfunctions in the operation of systems and mechanisms (accurate diagnosis is carried out after reading and decoding the error code);
• a signal indicator in the form of a thermometer located on top of the scale of the coolant temperature meter lights up if it heats up above normal (failure of the radiator fan, temperature sensor, thermostat).

Information icons

The machine icon may light up differently; it happens that the “car with a wrench” icon, the “car with a lock” icon, or an exclamation mark are lit. About all these notations in order:

When such an indicator lights up (a car with a key), it informs about malfunctions in the engine (often a malfunction of some sensor) or the electronic part of the transmission. To find out the exact cause, you will need to perform diagnostics.

If a red car with a lock lights up, it means that there are problems in the operation of the standard anti-theft system, often this icon means that the car does not see the immobilizer key and it will be impossible to start the car, but if this icon blinks when the car is locked, then everything is normal - the car under lock and key.

A yellow vehicle indicator with an exclamation mark notifies the driver of a hybrid vehicle that there is a problem with the electric drive. Resetting the error by disconnecting the battery terminal will not solve the problem - diagnostics are needed.

Everyone is used to seeing the open door icon lit when a door or trunk lid is open, but if all the doors are closed and the light on one or four doors continues to shine, then often the problem should be looked for in the door terminals (wire contacts).

The slippery road icon begins to flash when the stability control system detects a section of slippery road and is activated to prevent slipping by reducing engine power and braking the slipping wheel. There is no need to worry in such a situation. But when a key, a triangle, or a crossed out skid icon appears near such an indicator, the stabilization system is faulty.

The wrench icon pops up on the display when it’s time to perform vehicle maintenance. It is an information indicator and is reset after maintenance.