Why the Niva Chevrolet speedometer does not work: reasons and repairs

Niva Chevrolet speedometer does not work

Modern cars have a large number of sensors that correct the operation of the car. And they are all very strongly interconnected. If the Chevrolet Niva speedometer does not work, then there may be several reasons for this, ranging from the speed sensor to the electronic control unit. This, in turn, can lead to improper engine operation, increased fuel consumption and other problems. Therefore, a non-functioning speedometer is not only a problem with traffic control, but also a possible cause of major malfunctions. This means that it is urgent to diagnose the car.

In the Niva Chevrolet, the speedometer needle is driven not by a cable, as on old cars, but by an electronic control system, which is controlled by a magnetic sensor. The speedometer needle is an ammeter driven by the difference in current transmitted by the sensor.

If, as a result of diagnostics, a problem is identified with the instrument panel, then in most cases it may require a complete replacement, since it is non-repairable and its components are located on one board.

The speed sensor transmitting the impulse to the instrument panel is installed on the transfer case. These signals are transmitted to the ECU, where they are processed, engine parameters are read and transmitted to the instrument panel.

It is quite simple to determine problems in the operation of the speedometer: these are inflated indicators, for example, when a car shows clearly inflated speed indicators, the needle twitches during uniform movement or does not rise from the zero mark.

There are several main reasons that can affect the operation of the speedometer:

• Mechanical damage to the instrument panel
• Damage to wiring or contacts
• Short circuit
• Speed ​​sensor failure
• ECU failure

Some problems can be determined by connecting an OBDII sensor to the panel

If problems with the speedometer are accompanied by a Check Engine error, then in this case the problem will be related to the ECU. By checking it with a sensor, you can most likely detect error 0500.

First, you should conduct a self-diagnosis of the instrument panel. To do this you need to follow a few simple steps:

• Turn off the ignition and hold down the button to reset the daily mileage
• Hold the button to turn on the ignition
• Release the button
• If the instrument panel is working properly, then the instrument arrows should rise to the maximum division and return to their original position.

If the speedometer needle does not move or there are malfunctions in their operation, then the problem is in the instrument panel. You should disconnect it and check the condition of the contact blocks. It is possible that during operation due to vibrations, the contacts in the block became disconnected from the common bundle to the instrument panel.

Pin 9 is used to connect the speedometer. In some cases, for example, when repairing an instrument panel, it may be installed skewed, which may subsequently affect the operation of the system.

If these steps do not help, then you need to check the contact block on the speed sensor. To do this, you need to install the car on an inspection hole or overpass. It is located at the bottom of the transfer case and water and reagents used to treat roads can get on it.

After this, you need to check the wires leading from it to the speed sensor. The wire may fray or suffer other mechanical damage. The car body carries a negative charge - mass. And if the wire sheath is damaged, a short circuit may occur.

It is also necessary to pay attention to its condition. It is often made not only in a metal case, but also in a plastic one, which encloses a core with a winding and a rotor. Depending on the rotation speed, the level of current generated and, accordingly, the position of the speedometer needle depend.

This element is not repairable, since it is enclosed in a solid body. Therefore, if malfunctions occur, it must be replaced. You can check its performance using a multimeter. Before doing this, you need to remove it:

• The terminals are disconnected from the sensor
• The sensor is unscrewed
• An inspection and assessment of its condition is carried out.

• There are three terminals suitable for the sensor: minus, plus and central pulse. When checking, the multimeter is connected with a negative probe to ground, and a positive one to the central connector
• A tube is placed on the sensor roller and the multimeter is switched to minimum measurement mode
• Using the tube, the sensor rotates, and if it is working properly, the multimeter should show deviations from the rest state.

If the multimeter does not show the operation of the element being measured, it means that it is faulty and requires replacement.

Speedometer

Speedometer

Previously, we were accustomed to a speedometer that was driven by a flexible shaft - the speedometer shaft. It's completely different in the Audi 80: its speedometer is an electronic measuring device similar to a tachometer.

Just like a tachometer, it receives speed pulses - but not from the engine, but from a sensor in the gearbox. There the wheel speed is measured.

The device correlates the speed pulses with a time factor and thus obtains a reference value for speed.

• Due to the lack of a mechanical drive, the trip meter functions partially electrically: a so-called stepper motor rotates the drive shaft of the meter's transmission step by step further - depending on the number of revolution pulses.
• Advantages of an electronic speedometer: silent drive, more accurate indicators.
• If the speedometer does not work, you should first check the corresponding fuse in the fuse compartment.
• Speedometer pulse sensor

Also interesting: Disabling the front axle of a Niva 4x4 (reviews, pros and cons) » Lada.Online

The speedometer pulses come from the reed sensor on the left side of the gearbox. A reed switch is a hermetically sealed contact group located in a gas shell.

The contact closes if it is exposed to a magnetic field. In order for the reed switch to deliver pulses, it must close and open in rhythm with the rotation speed.

Therefore, the notched wheel rotating in front of the sensor influences the magnetic field acting on the contact group.

Checking the speedometer pulse sensor

Removing the speedometer pulse generator

Why the Niva Chevrolet speedometer does not work: reasons and repairs

Modern cars are packed with sensors like a Christmas turkey with apples. Moreover, all or almost all sensors are interdependent. If the speedometer on our Niva Chevrolet does not work, it may happen that the electronic control unit also receives incorrect impulses. And this affects engine performance , gasoline consumption, and power. A non-working speedometer is not just an inconvenience, it is a reason to look at the reasons and restore the system’s functionality.

The video shows how the speedometer on a Niva Chevrolet can “glitch”:

Basic functions of the device.

To control the speed of movement, a special device is installed on the dashboard - a speedometer. But it only displays the information received, and the speed sensor is responsible for collecting data. If it fails, it will create many dangerous situations on the road, since it will become difficult to control the speed limit in the city and on the highway. But besides this, thanks to the integration of the electronic control unit into the system, the speed sensor allows you to perform the following functions:

• fuel consumption control
• displaying information on the instrument panel
• in cars with an automatic transmission it is included in the complex responsible for engine control

Reasons for a non-working speedometer: from simple to complex

In the Niva Chevrolet, the speedometer needle is driven not by a cable and a magnetic device, as in classic VAZs, but by electronics. The speedometer itself, like the rest of the instruments on the panel, are nothing more than voltmeters or ammeters with different scales.

The speedometer receives an electrical impulse, and the needle is driven by a simple stepper electric motor.

This is for information, because it is useless to poke into the speedometer itself, it is not repairable and if at least one element fails, you have to buy the entire instrument panel on the circuit board.

The speedometer receives an impulse from the speed sensor, and it is installed on the transfer case housing. These impulses are also monitored by the electronic engine control unit and, receiving them, draws its conclusions about the operating mode of the motor.

The signs of a non-working speedometer are quite clear - the needle either lies shamelessly, showing 160 at a speed of 20 km/h, or twitches, or falls dead to the zero mark.

Since there are not many elements in the electrical circuit of the Chevrolet Niva speedometer, there are only a few reasons for the device not working:

1. Mechanical damage to the speedometer itself.
2. No contact in any of the terminal connections.
3. Broken or shorted wire.
4. Failure of the speed sensor.
5. ECU malfunction.

Dashboard test and speedometer check

If the speedometer starts to work incorrectly and the Check Engine light comes on, then you should check the electronic control unit for errors.

If the ECU memory contains information about error 0500 , this indicates that something is wrong with the pulse coming from the speed sensor.

We’ll return to the sensor later, but for now we’ll check the entire dashboard for the functionality of each of the devices.

To do this, there is a panel self-diagnosis procedure. The verification process goes as follows:

1. Turn off the ignition and press the daily mileage reset button.
2. Do not release the button and turn on the ignition.
3. Let's release the button.
4. In this case, the arrows on working instruments should move three times from zero to the maximum division.

Everything is clear here - if the speedometer refuses to fulfill the test conditions, the problem is either in the device itself or in the tidy board. Most likely, you will have to change the board assembly.

Video about self-diagnosis

The video shows a VAZ-2112, but the principle is the same, and the panel is the same.

Checking the contacts of the speedometer and speed sensor

There are not many contact blocks in the speedometer circuit. It often happens that vibration causes the block moving from the common bundle of wires to the dashboard to move. To eliminate the possibility of losing contact in this place, you will have to move the device away and remove and insert the chip on the back of the panel board several times.

Pin No. 9 is the speedometer pin. Sometimes the block may simply be installed skewed , then the contact may be inconsistent or absent altogether.

The location of the speed sensor is schematic.

If this does not help, you will have to look for the contact connector on the speed sensor. As we said, it is located on the transfer case housing and its connectors often suffer from water and reagents that are sprinkled on the roads.

The contact needs to be disconnected and its condition assessed . In addition, the wires themselves that go to the speed sensor often come under attack. On a Chevrolet Niva with high mileage, the wire can easily fray, and if at least one of the three wires is damaged or shorted to ground, the speedometer will not work.

And the location of the sensor is not entirely successful; the wires can simply be torn out by a snag.

Checking the speed sensor

The design of the speed sensor is simple - it is a metal or plastic case, a ferromagnetic core and a winding in which the rotor rotates, generating an electrical impulse - the faster the sensor roller rotates, the greater the impulse, the further the speedometer needle deviates from zero.

Causes of breakdowns

The sensor itself rarely fails because it is a reliable device. But its operation may be negatively affected by the following factors :

1. The sensor is dirty from the inside. Such problems are especially common with sensors with detachable housings.
2. Metal shavings get on the device. Sometimes this reason appears in devices supported by permanent magnets.
3. Interference from other devices.
4. Problems related to fixation. The scheme must take into account the color of each individual part.
5. The integrity of the wiring is broken. For example, if it overheated, or some mechanical damage appeared inside. In this case, the contacts are completely cleaned of traces of corrosion, then a special protective lubricant is used for them.
6. Oxidation of contacts. The phenomenon is attributed to natural factors, often arising simply from time to time.
7. Overheating that occurs during direct operation. This happens even if the pinout is initially correct.

Niva Chevrolet speedometer does not work

Modern cars have a large number of sensors that correct the operation of the car. And they are all very strongly interconnected. If the Chevrolet Niva speedometer does not work, then there may be several reasons for this, ranging from the speed sensor to the electronic control unit. This, in turn, can lead to improper engine operation, increased fuel consumption and other problems. Therefore, a non-functioning speedometer is not only a problem with traffic control, but also a possible cause of major malfunctions. This means that it is urgent to diagnose the car.

In the Niva Chevrolet, the speedometer needle is driven not by a cable, as on old cars, but by an electronic control system, which is controlled by a magnetic sensor. The speedometer needle is an ammeter driven by the difference in current transmitted by the sensor.

If, as a result of diagnostics, a problem is identified with the instrument panel, then in most cases it may require a complete replacement, since it is non-repairable and its components are located on one board.

The speed sensor transmitting the impulse to the instrument panel is installed on the transfer case. These signals are transmitted to the ECU, where they are processed, engine parameters are read and transmitted to the instrument panel.

It is quite simple to determine problems in the operation of the speedometer: these are inflated indicators, for example, when a car shows clearly inflated speed indicators, the needle twitches during uniform movement or does not rise from the zero mark.

There are several main reasons that can affect the operation of the speedometer:

• Mechanical damage to the instrument panel
• Damage to wiring or contacts
• Short circuit
• Speed ​​sensor failure
• ECU failure

Some problems can be determined by connecting an OBDII sensor to the panel

If problems with the speedometer are accompanied by a Check Engine error, then in this case the problem will be related to the ECU. By checking it with a sensor, you can most likely detect error 0500.

First, you should conduct a self-diagnosis of the instrument panel. To do this you need to follow a few simple steps:

• Turn off the ignition and hold down the button to reset the daily mileage
• Hold the button to turn on the ignition
• Release the button
• If the instrument panel is working properly, then the instrument arrows should rise to the maximum division and return to their original position.

If the speedometer needle does not move or there are malfunctions in their operation, then the problem is in the instrument panel. You should disconnect it and check the condition of the contact blocks. It is possible that during operation due to vibrations, the contacts in the block became disconnected from the common bundle to the instrument panel.

Pin 9 is used to connect the speedometer. In some cases, for example, when repairing an instrument panel, it may be installed skewed, which may subsequently affect the operation of the system.

If these steps do not help, then you need to check the contact block on the speed sensor. To do this, you need to install the car on an inspection hole or overpass. It is located at the bottom of the transfer case and water and reagents used to treat roads can get on it.

After this, you need to check the wires leading from it to the speed sensor. The wire may fray or suffer other mechanical damage. The car body carries a negative charge - mass. And if the wire sheath is damaged, a short circuit may occur.

Main types of faults.

Like any car part, the sensor is subject to vibration and is susceptible to contamination and oxidation. Therefore, its failure is possible from time to time. To understand the cause of the breakdown and what to do in each specific situation, the following problems should be eliminated:

• broken wiring
• the appearance of oxide on the contacts
• destruction of wire insulation
• mechanical damage to the housing or its internal components

Also interesting: Niva Chevrolet steering tips

To do this, you can carry out a certain set of measures to check the condition of the sensor. Typically, such work requires a multimeter. The sensor is removed from the seat. A positive probe is connected to the contacts. The negative one is connected to the ground of the vehicle. The multimeter must be set to minimum power measurement mode.

There is a second diagnostic method. This does not require dismantling the sensor. The car is raised with a jack, then a multimeter is connected to the sensor. To appear, you need to rotate the wheel, observing the readings of the device. If the value does not change, the sensor is faulty.

Problems with DS arise from time to time, but not all of them require replacement. Some of them are caused by third-party reasons, such as:

• oxidation of contacts,
• wire break,
• damage to wire insulation,
• damage to gearbox mechanisms.

Why the speedometer on a Chevrolet Niva does not work: reasons

The answers are below. In the Niva Chevrolet, the speedometer needle is driven not by a cable and a magnetic device, as in classic VAZs, but by electronics. The speedometer itself, like the rest of the instruments on the panel, are nothing more than voltmeters or ammeters with different scales.

The speedometer receives an electrical impulse, the speedometer arrow is driven by a simple stepper electric motor. Repair of the Niva Chevrolet speedometer is often not durable. This is for information, because it is useless to poke into the speedometer itself, it is not repairable and if at least one element fails, you have to buy the entire instrument panel on the circuit board.

The speedometer receives an impulse from the speed sensor, and it is installed on the transfer case housing. Since there are not many elements in the electrical circuit of the Chevrolet Niva speedometer, there are only a few reasons for the device not working: Mechanical damage to the speedometer itself. In some cases, the Chevrolet Niva speedometer does not work; when repairing the instrument panel, it may be installed skewed, which may subsequently affect the operation of the system.

Chevrolet Niva: speedometer does not work

If these steps do not help, then you need to check the contact block on the speed sensor. To do this, you need to install the car on an inspection hole or overpass.

It is located at the bottom of the transfer case and water and reagents used to treat roads can get on it. If there is an error there that says the Chevrolet Niva speedometer does not work, you will have to look for a place for an inspection hole, an overpass, a lift, where it would be convenient to get to. The appearance of this code may be due to a malfunction of the speed sensor itself or its mechanical drive.

We’ll return to the sensor later, but for now we’ll check the entire dashboard for the functionality of each of the devices.

Why the speedometer does not work on a Chevrolet Niva

Turn off the ignition and press the daily mileage reset button. Using a transfer case on a Chevrolet Niva.

Do not release the button and turn on the ignition. In this case, the arrows on working instruments should move three times from zero to the maximum division.

Everything is clear here - if the speedometer refuses to fulfill the test conditions, the problem is either in the device itself or in the tidy board. Most likely, you will have to change the board assembly. Mechanical damage to the speedometer itself.

No contact in any of the terminal connections. Broken or shorted wire.

Instrument cluster Niva Chevrolet

All vehicle control devices are combined into an instrument cluster.

It includes: an electronic speedometer and tachometer, a liquid crystal indicator of the total and daily mileage counter (odometer), a liquid crystal display of the clock and ambient temperature, a coolant temperature indicator, a fuel level indicator, twelve warning lamps and six backlight lamps.

The operation of the devices is controlled by an electronic module, which receives signals from sensors.

Temperature and fuel level indicators are of magnetoelectric type. The tachometer and speedometer needles are driven by stepper electric motors.

The electronic instrument cluster cannot be repaired, with the exception of replacing indicator lamps and instrument lighting lamps.

The components of the instrument cluster are not supplied as spare parts. Therefore, if one of the devices fails, the combination should be replaced as an assembly.

Addresses of the output plugs of the instrument cluster

To avoid damaging the instrument cluster glass, do not clean it with any solvents. You can wash it with a mild soap solution. It is best to use a glass cleaner, such as Sekunda.

Methodology for troubleshooting devices

When the coolant temperature gauge needle is constantly at the beginning of the scale, with the ignition on, disconnect the wire from the gauge sensor and connect the wire tip to ground.

If the arrow deviates, then the sensor is faulty and must be replaced, and if it does not deviate, then check the pointer in the instrument cluster and the wire connecting the sensor and the pointer.

If the temperature gauge is faulty, replace the instrument cluster.

The method for checking the fuel level indicator is similar to that described above.

If the pointer needle is constantly at the beginning of the scale and does not deviate after the tip of the wire disconnected from the sensor is shorted to ground, then check the pointer.

If the fuel level indicator is faulty, replace the instrument cluster.

Why the Niva Chevrolet speedometer does not work: reasons and repairs

Failure of the speed sensor. ECU malfunction.

Dashboard test and speedometer check Error If there is error information in the ECU memory, this indicates that something is wrong with the impulse coming from the Chevrolet Niva sensor. How to disable the speedometer on a Chevrolet Niva - a few tips If the speedometer on a Chevrolet Niva is not working properly, but the indicator does not light up, then it’s time to diagnose the dashboard yourself. Simply press the button, which is used to reset the vehicle's daily readings - no need to turn on the ignition.

It will have to be turned on immediately after holding the button pressed for a while.

Chevrolet Niva speedometer winder

• 4
• 9 reviews

• 4
• 9 reviews

Suitable for almost all domestic and foreign cars produced from 1990 to 2021

• Not detected by diagnostic equipment
• Does not affect vehicle warranty
• Mileage is recorded in all blocks and in all service intervals
• Runs cleanly, no errors on the dashboard

View all specifications

• Free delivery throughout Russia
• We ship on the day of order

• Payment at your post office
• Cash and non-cash payments

• Not detected by diagnostic equipment
• Does not affect vehicle warranty
• Mileage is recorded in all blocks and in all service intervals
• Runs cleanly, no errors on the dashboard

• Moscow time starting from 9:04, free
• Pickup starting from 9:04, free

• after receiving the goods
• cash and non-cash payments

Niva Chevrolet spinners are intended for rewinding speedometer readings. With their help, mileage increases. If you need to adjust the instrument readings yourself, then purchasing a speedometer adjuster for the Niva Chevrolet will be an excellent solution.

Features of work

The Niva Chevrolet winder is a simple way to adjust mileage readings. The device is connected to a special connector. No additional setup or coloring is required. You can order the spinner on the website at a low price.

The device is usually used by drivers in companies whose management pays employees based on the amount of gas they use. These could be taxi drivers, carriers, delivery service workers. By using winding on the Chevrolet Niva, you can correct the readings and thus save on gasoline. If used correctly, you can even save money thanks to the equipment.

The speedometer knob for Niva Chevrolet is only suitable for the car brand of the same name. The fact is that each additional equipment is connected to an automated system. The readings will be displayed everywhere, so even the most experienced mechanic will not be able to detect the operation of the device.

Why mail?

• There is a post office in any locality;
• fixed cost of shipping to any region;
• it is possible to pay for the purchase upon receipt;
• acceptable delivery times. According to experience (several thousand parcels), the parcel reaches any region of the Russian Federation within a week. Those. on average 5-7 days;
• safety of parcels - all first class parcels weigh no more than 2 kg, which eliminates mechanical damage during shipment. There was not a single case of mechanical damage to the spinner!;

Other delivery methods

We can also send the parcel via SDEK transport company. Its terminals are located in almost all major cities. However, it should be taken into account that this delivery method is only possible with 100% prepayment for the goods (which is not required for delivery by mail). Delivery time this way is 3-4 days. The cost of delivery, taking into account the weight of our parcel, is about 500 rubles, and here the cost depends on the region.

Methods for diagnosing the fuel pump relay

Let's imagine a situation: the car does not start because the gas pump does not pump fuel. In this situation, the first thing they do is check the integrity of the electrical circuit, and only after that the fuel pump itself is replaced. Any relay of this type can be very easily diagnosed by ear. When triggered, a characteristic click is heard, which is clearly audible from the front passenger side. This indicates the serviceability of the control relay itself.

Even if you couldn’t hear the clicks, the next signal will be the sound of the fuel pump firing - the hum of a running electric motor, which creates operating pressure in the fuel line. If this does not happen, then most likely there is a break in the circuit.

There are two ways to check the relay for serviceability: