How to disable the speedometer on a Grant with automatic transmission

we need to remove errors from the controller
andreyal553 wrote: we need to remove errors from the controller

using the BC or by disconnecting the “-” terminal of the battery for 10 minutes

How to “freeze” the odometer?

liquid nitrogen

How to stop the kilometers counting on the odometer

I'm embarrassed to ask, but why? I’m asking this without joking, but I really don’t understand what I’m talking about, but I need to educate myself

You need to carefully read the text of the topicstarter. Well, for example, here:

The next maintenance is approaching, but I can’t go yet, I’m waiting for my salary. How to stop the kilometers counting on the odometer?

And after that (before visiting the service) you need to remove errors from the controller. They are also not fools and will immediately determine it by the error code.

What about “not fools”? To tell you about the maintenance, look, my speedometer was faulty, maybe there’s something wrong with the wiring.

And definitely a look.

You need to carefully read the text of the topicstarter. Well, for example, here

Tell me at the maintenance, look, my speedometer is faulty, maybe there’s something wrong with the wiring?

MOT is not carried out according to the speedometer, or are we talking about different things?

fucked up loss of losses_here I slowed down

Thanks guys! Yes, we are talking about regular maintenance during the warranty period.

yeah, and then to the service with those eyes

“Oh, the wiring is probably frozen. ”

I’ll clear the errors later, of course, no problem, there’s a bookmaker, it’s a matter of five seconds. Is it possible to simply remove the connector from the sensor without unscrewing it? Isn't there any danger other than a burning Jackie Chan? Will the car stall, stall, etc.?

Is it possible to simply remove the connector from the sensor without unscrewing it?

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Speed sensor malfunction

Failure of the speed sensor (in diagram No. 11) is one of the reasons for the speedometer not working. The sensor is located on the gearbox, where it is screwed with one screw, and three wires go to it. On a Lada Kalina with a 16kL engine, you can find the sensor on the side of the washer reservoir. In a car with an 8-valve engine, it is recommended to remove the bellows of the engine air filter to access the sensor.

Car enthusiasts have noticed that if the speed sensor malfunctions, the electric power steering also does not work (the steering wheel becomes very light, or vice versa, heavy) and the CheckEngine lights up. In addition, there are problems with speed (E-Gas).

If after replacing the speed sensor the speedometer still does not work, then it is possible:

The speedometer on the Priora does not work: the main reasons, repair methods and symptoms

AvtoVAZ cars have a low price, which often leads to a decrease in the quality of their assembly and early failure or damage of some components. One of the most common problems with Lada Priora cars is speedometer failure. According to traffic rules, it is prohibited to drive a car with a faulty speedometer, so it must be repaired as soon as possible. In this article, we will look at what to do if the speedometer on the Lada Priora does not work.

Symptoms of a speedometer failure on a Priora

A car speedometer is necessary to measure speed, as every driver knows. From this we can conclude that its failure is diagnosed due to one of the following problems:

When the car is moving, the speedometer needle does not deviate from zero;
The speedometer incorrectly detects the vehicle speed or turns off during operation.

Most often you come to deal with the second option of speedometer failure. A typical problem for Lada Priora cars is a temporary failure of the speedometer, when while the car is moving the needle drops to zero, an exclamation mark lights up on the dashboard and the electric power steering also fails. After a few minutes, the problem disappears and the car’s electronics operate as before.

Please note: Lada Priora cars are equipped with an electronic speedometer, as a result of which there are two options for failure: mechanical or electronic, that is, a failure of the microprocessor that controls the device.

Speedometer does not work on Priora: reasons

If the speedometer on a Lada Priora car does not work, the first thing you should do is make sure that the problem is not related to bugs in the chip on which it operates. During operation, the chip's cache may become clogged with information, causing the speedometer to malfunction. To reset the speedometer chip settings, you need to reset the ground from the car battery and disconnect the power from the car's on-board network. Such simple manipulations will lead to resetting the settings of storage devices, including the speedometer chip.

When resetting the chip does not help to cope with the speedometer malfunction, you should conduct a full check of the power circuit. To do this you will need:

Check the fuse plate installed on the fuse board in the speedometer power supply circuit. The required fuse is designated "IG/METER";
Next, the serviceability of the wiring in the area from the speed registration sensor to the instrument panel is diagnosed. Often in this section the wires are torn, pinched and get other defects, largely due to the constant shaking of the car while driving on not the best roads;
Also, when checking the wiring, it is necessary to inspect the contacts in the connectors, which may become unusable due to oxidation and rust formation. It would be a good idea to clean the sensor contacts and connectors;
The next step is to check the vehicle distance control sensor. Service centers use diagnostic equipment to check it. If there are no diagnostic tools, you can check the operation of the sensor by driving a few kilometers. When the mileage count continues, this indicates that the sensor is working.

At this point, we can consider checking the speedometer power circuit complete.

If the problem cannot be detected, the problem may be related to the dashboard itself. To check this, you will need to remove the printed circuit board on which all the devices are located and carefully inspect it for damage, oxidation, melting, breaks and other defects. It is effective to check the board on a special diagnostic stand in a service center. When there are problems with the board, technicians can repair it.

Electronic failure options were discussed above, but we should also not forget that a possible reason for a non-working speedometer in a Priora is damage to the needle or its mechanisms. To verify this, you need to disassemble the device and inspect it for defects or their absence.

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Principle of operation

DS of this type is located in all VAZ cars, and the 8-valve Granta engine is no exception. The basis of the work is the Hall effect. Each of the 3 contacts located on the sensor performs its own function: pulse - is responsible for generating pulses, grounding - turns off the voltage in case of leakage, power supply contact - ensures current transmission.

The operating principle is quite simple:

Increasing the speed increases the pulse frequency and vice versa.

How to identify a malfunction

Situations when it is necessary to replace the sensor do not happen often. However, if certain problems are detected, you need to pay attention to it:

In order to understand why these symptoms appear, you need to know where the speed sensor is located on the Lada Granta. Its location from a technical point of view is not entirely successful, which leads to problems in measuring speed. It is located quite low, so moisture, dust and dirt from the road surface have a negative effect on it, pollution and water damage the seal. Errors in the operation of the diesel engine often lead to malfunctions of the entire engine and its central components. A faulty speed sensor must be replaced.

How the speedometer works

Before we tell you how to adjust or wind up the odometer readings, let’s figure out what the operating principle of the speedometer on a Gazelle is. The principle of operation of the mechanism is to measure the speed of the vehicle through the mechanical connection of its pointer with the output pulley of the gearbox. The latter receives wheel drive.

The shaft can give a true measure of driving speed; more accurate indicators will give the wheels of the car. This is because the gearbox pulley is located further from the gearbox and closer to the wheels, and the speed at which it rotates is set in accordance with the final speed after the gearbox. The speed of rotation of the pulley may be identical in both first and fourth gear, but the difference in the speed of the machine can be colossal.

In a gearbox, the output pulley contains a gear that rotates with the pulley. The gear is connected to the speedometer drive cable. In the circuit, the cable is a durable wire located inside a protective rubberized casing. One end of the cable is installed in a special hole and fixed on the drive gear. When the gear rotates, the cable rotates with it.

The second end of the cable is connected to the device on the control panel. At the end is a magnet in the shape of a shaft, which is mounted close to the steel drum, but not in contact with it. The drum is attached to the needle and transmits readings to the corresponding scale. When the vehicle is stationary, the cable needle is kept at zero level by a small coil spring.

How to make a replacement

Before removing the speed sensor on the Lada Granta, it is worth checking the functionality of the electrical circuit. Perhaps the problem is a break or discharge of the battery, but the sensor itself is working. To do this, you should take the following steps:

Let's consider the sequence of actions to replace the DS:

The removed DS can be checked, perhaps it will be serviceable. In this case, it is enough to clean it, dry it, apply sealant and install it back. For an old, cleaned or new sensor, it is best not to skimp on sealant and electrical tape to protect it as much as possible from dirt and moisture.

After the replacement has been made, it is necessary to delete the error that is already stored in the control system memory. This is done simply: remove the battery terminal to the “minus” (5-7 minutes is enough). Then it is put on again and the error is erased.

The replacement process itself is not complicated, but it takes a lot of time in most cases because few people know where the speed sensor is located on the Grant. But the one who once found it will be able to replace it quickly enough. It is more convenient to carry out the replacement on an overpass or inspection hole, then all manipulations can be completed much faster.

Repairing the speedometer and getting rid of floating speed! — Lada Granta, 2.0 l., 2012 on DRIVE2

Hi all!

I won’t write much here... the problem started, the revolutions began to jump, from 400 to 1000 on a warm car, I wrote about this in a post earlier, but there were many reasons... and before that the speedometer stopped working... it happened that while driving the needle could fall, and then start showing again, or go to the cutoff and come back...

and now, after a month and a half, I’m sick of it! and it's finally getting warmer...

and started to figure it out. I removed the intake pipe so that I could get closer to the speed sensor...

removed the intake

and unscrewed the sensor from the box... there were chips stuck to it, and I was happy, they say, this is the problem, but...

Hedgehog

installing the sensor from the old box...

original sensor

nothing changed.

began to complain to Xatab86 about this problem, and asked to find a diagram of the Granta mass, because in many places they wrote that the interior mass could spin up and become the cause of this illness... but Vitya found on the forum that the reason for the speedometer failure and unstable engine operation (drops in revolutions) could be the cause of the blown fuse F7, which is located in the passenger compartment, below the steering column. And it turned out that it really blew! I replaced it with a new 7.5A sensor, and everything was fine! The speedometer started working and the engine started running normally!

These are the reasons for malfunctions, one tiny detail...

Beaver everyone, and don't break down!

Issue price: 0 ₽ Mileage: 44500 km

Page 2

Hi all!

and now, after a month and a half, I’m sick of it! and it's finally getting warmer...

and started to figure it out. I removed the intake pipe so that I could get closer to the speed sensor...

removed the intake

and unscrewed the sensor from the box... there were chips stuck to it, and I was happy, they say, this is the problem, but...

Hedgehog

installing the sensor from the old box...

original sensor

nothing changed.

These are the reasons for malfunctions, one tiny detail...

Beaver everyone, and don't break down!

Issue price: 0 ₽ Mileage: 44500 km

Rewinding the speedometer on the Lada Grant

I want to talk about the Lada Granta speedometer control - what it is, who needs it, what it is intended for, when to use it. I will describe in detail all the nuances and subtleties of the connection, the winding process and answer “hot” questions.

The speedometer winder on the Grant is a compact electronic device with which the driver can independently, without outside help, increase mileage without traces of intervention. If winding is carried out correctly, not a single dealer diagnostic will reveal the fact of adjustment.

Watch a video review demonstrating the operation of the twister on the new body.

As you can see, our parting is incredibly easy to use. No interference with wiring. It is enough to connect the device to the OBD2 diagnostic connector socket and turn on the ignition. It is important not to forget to turn off the ABS before connecting the winding to the Grant. To do this, you need to remove the required fuse inside the car. Read on to find out how to find it and disable it.

As soon as all these simple manipulations are completed, the winding process will begin - the speedometer needle will “go” to the 200 km/h mark. The mileage will increase at the same speed.

Who will need to increase mileage and why?

The speedometer winder is the first assistant for drivers of departmental vehicles. Organizations have a procedure for issuing gasoline for official use, based on mileage. The mileage traveled is multiplied by the consumption standard specified in the vehicle passport. Based on this, consumption is assumed to be a constant value, although in fact, more is always spent than according to calculations. And this discrepancy can be up to 30%.

Where does this gap come from? The passport standard does not take into account specific operating conditions: weather, vehicle load, road conditions, traffic jams. So it turns out that the driver must either walk one third of the way, or, in order to get to the place, refuel departmental transport at his own expense, which cannot be encouraging. Who would like to invest their hard-earned money every time?

It's good that you can buy a Grant speedometer winder.

At the right moment, the kan knob adjusts the mileage to standard values, which eliminates the fuel shortage. Many professional drivers have already appreciated the simplicity and cost-effectiveness of this solution to the fuel problem.

What is the operating principle of the Lada Granta winding with abs based on?

On how speed indicators are transmitted when the car is moving. Any information about movement (mileage, speed of movement) enters the digital CAN bus, which acts as a transmission link from signal sources to the electronic units of the vehicle. Data is collected in Lada Granta like this:

Next, the information received is sent to electronic components, including the engine control unit and speedometer.

The kilometers traveled are recorded on the dashboard, in the engine ECU, and in the memory, based on data received from the ABS unit.

The Granta speedometer winding circuitry with abs is based on a microprocessor with CAN support.

Our winder is capable of creating digital messages similar to signals from the ABS unit when the car is moving. As a result, when the twister operates, the movement of the vehicle is simulated. Electronic units perceive the simulation as real driving, reflecting the received data by increasing the indicators on the odometer and in the engine ECU recorder.

Modern configurations provide for duplication of information about the current mileage not in one electronic unit, but in several. This does not happen with every foreign car, but with domestic vehicles, the current mileage can be seen by connecting a diagnostic scanner, which is what dealers usually do during scheduled maintenance.

We will also use the Scanmatic scanner, which is used by dealers. After connecting it to Granta, you need to find the ECU service record plate. It looks like this:

PHOTO04 recorder table

You see, the mileage value is easy to read. Dealers also use this during the maintenance process. That is why the developers of the Grant winder paid special attention to writing a new mileage into the “brains”. This is clearly shown in the first video at the beginning of the article. To calculate the necessary algorithm, we had to spend a lot of time running the gadget on a real car. But the result is worth it. The twister works clearly, but the fact of winding is not detected.

An important point that should not be forgotten when using winding is to turn off the ABS unit during winding. To do this, remove the corresponding fuse located in the fuse box in the vehicle interior.

PHOTO05 fuse box

If you turn on the wheel without turning off ABS, incorrect data recording will occur. Why? Because during parking, an undisabled unit signals zero speed, transmitting signals to the CAN bus. The connected winder sends signals about movement at a speed of 200 km/h. The needle rises, but due to the intervention of messages from the ABS, it begins to jump, then dropping to 100, then rising again to 200. The mileage on the dashboard will increase, but it will not be registered in the “brains”, because the engine ECU will perceive such a signal as incorrect and will ignore him. This will result in discrepancies in the data.

revRambl › Blog › Rewinding the Lada Largus speedometer - better via OBD2!

I needed to rewind the speedometer on a working Lada Largus. The trouble is that my colleagues and I don’t meet the factory fuel standards (from what point do they even get them?), and we’re already tired of refueling at our own expense. First, I combed the Internet, they write that you can make a mileage winder on your Lada Largus yourself . One offers a diagram, but the trouble is that where can you buy radio components nowadays (in our village), plus digging up a soldering iron on the balcony, solder, etc. - it’s not so simple. Another option was to make it from AZ-1, as in they spun old gazelles. I went to one auto store, and there was damn QUARANTINE! I ran around half the city and barely found this little place. Everything is closed, everything is full of COVID. So what the hell is the point, I looked all over the box, but the speed sensor is not there like before. Again, something needs to be done on collective farms with this block. But I don’t have much time, plus it’s cold outside. I went on searching.

Of the ready-made ones, they offered two options, one for the diagnostic connector

, the other in the cigarette lighter. And you need to bring the wire from the instrument panel, as I understand there is no way without this. The consultants over the phone explained that there was a diagnostic connector, but the required wire on Largus was not in the connector. In a friend’s garage, I picked up such a winder through the cigarette lighter.

I tried connecting it to the green wire, but it didn’t work again. In general, there is only one nervous person. I searched the entire Internet on the topic of rewinding to Largus, in one video there are some two wires leading - nothing is clear there at all. Then I found this

I read the reviews on the manufacturer's website - everything seems to be ok. I ordered it - and after 4 days my Largus speedometer was already at the post office (it’s good that the post office was not closed for quarantine). I paid there.

The kit includes detailed step-by-step instructions in printed form, a wire with a contact for the connector. It’s nice that I didn’t have to go shopping looking for this terminal or wire. The installation process is basically the same as in the video. Only the instructions for winding the Largus speedometer also list the main mistakes made during installation. I just fell for one - I took the wrong wire at first. But then I figured it out. The main thing is that in the end everything works! Money well spent. It shakes in the parking lot, you don't even have to start it. Just turn off the fuse on the abs, which is not difficult.

My downside is that if you need to rewind the speedometer of the Lada Largus, there’s no point in fiddling with these auxiliaries, fans, and so on. There is a ready-made item that costs adequate money. It will justify itself. Good luck to everyone on the roads!

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