✅ How to reset a check on a Priora yourself

The engine error light came on: what to do and how to erase it

An error in engine operation causes the check engine warning light to light up on the dashboard.
The indicator will remain on until the normal operation of the failed or malfunctioning element is restored. On some cars, after the operation is restored, the “check” stops lighting by itself; in addition, a so-called “reboot” of the controller may be required, which we will consider below, as well as a software reset of errors in the ECU. Note that in some cases, even after eliminating the cause and attempting to reset, the “check” still continues to light. Often such errors are critical. In other words, it is impossible to remove such an engine error using simple methods. The fact is that a critical error is recorded in the memory of the electronic control unit and is not erased on its own. In this article we will talk about how engine errors are diagnosed, as well as how to reset the engine error yourself.

Failures in the idle speed system (IAC) and ESC

P0500 - speed sensor is broken.
P0506 - very low engine speed at idle.
P0507 - too high speed at idle.
P0511 - the XX regulator network is faulty.
P0560 - BS voltage is below the minimum threshold.
P0562 - very low voltage in the BS.
P0563 - very high voltage in the BS.
P0601 - ROM checksum error.
P0615 - the wires of the additional starter relay are broken.
P0616 - the same wires are shorted to ground.
P0617 - they shorted at the BS.
P0627 - the fuel pump relay wires are broken.
P0628 - the same wires are shorted to ground.
P0629 - they shorted it to the BS.
P0645 - break in the wiring of the air conditioning compressor clutch relay.
P0646 - the same wiring has shorted to ground.
P0647 - she shorted to BS.
P0650 - Malfunction indicator light circuit does not operate.
P0654 - Tachometer control circuit is faulty.
P0685 - the main relay electrical wire is broken.
P0686 - the same electrical wire has shorted to ground.
P0687 - he shorted it to the BS.
P0691 - the electrical wiring of the fan control relay is shorted to ground.
P0692 - the same wiring has shorted to the BS.

Note: in cases where the computer displays error codes that indicate a break in the electrical wiring of a device, before troubleshooting the problem and purchasing spare parts, you must first see if the electrical wiring plug has come out of the connector of the corresponding device. Such incidents happened. Testers and computers are, of course, good, but nothing can replace the eyes of a car enthusiast. Good luck with the repair.

All foreign cars currently have various sensors installed that monitor the operation and condition of the car. The modern Lada Priora is no exception to this series. The position and quality of many operating systems in a car depend precisely on how well these sensors perform their duties.

Their main problem is that if some sensors are turned off, the car will not disrupt its operation and can continue to move unhindered. However, the breakdown itself can be detected much later, when the negative consequences of disconnecting the sensors become apparent.

Depending on which sensor fails, fuel consumption may increase sharply, and some malfunctions in the operation of the car’s engine may also occur. In addition, a common “symptom” of sensor disconnection can be accelerated wear and tear of some elements in the car.

In order to check for certain errors on the Priora, you can use a special controller, which is built into the car specifically for this purpose. Thanks to this controller, you don't have to go into the engine compartment with a multimeter to look and identify the problem.

This controller is connected to a special tester, which is connected by manufacturers to the on-board computer. It won’t take much time to perform a full check of the car for any malfunctions in the operation of systems and sensors. You can start the process by pressing two buttons, and then all that remains is to correctly decipher the error codes.

How to clear an engine error

Let's start with the fact that engine errors can occur for various reasons, since the control system includes a large number of sensors and controls the operation of individual components, systems and mechanisms. It should also be taken into account that different vehicles may differ in terms of the complexity of a particular system. On some cars, the “check” lights up, for example, only in the event of serious or critical errors (malfunctions in the operation of the air flow control valve, engine detonation error when the knock sensor is faulty, etc.).

At the same time, the check may not light up if there are problems with oil pressure, there are certain deviations from the norm in the throttle operation, etc. On simple cars the light comes on, on more technologically advanced cars in a similar situation the error “loss of engine power” or “oil pressure error” appears in the engine. For this reason, reading engine errors is a necessary diagnostic and preventative procedure, regardless of whether the check light is on or not.

Now about the reset. On many cars, especially in the budget segment, to reset the error in the ECU, you should perform the following steps:

warm up the power unit to operating temperature;
remove the “plus” terminal from the battery for 5-15 minutes, then connect the terminal back after the specified time;
insert the key into the ignition switch and turn it to the last position before starting the internal combustion engine from the starter (the lights and indicators on the dashboard should be on);
leave the key in the lock in this position for 1 minute, then return the key to its original position;

Such actions in some cases allow you to remove errors from the computer. Now you can start the engine (the check should go out after starting) and let it idle for 2-3 minutes (do not press the gas pedal while running). Now you should turn off the engine, and then repeat the procedure of starting and stopping the engine a couple more times.

Note that this method allows you to remove the “check” when the cause of its ignition was the operation of the engine with a disconnected or faulty sensor, refueling with the wrong type of fuel, ignition failures due to non-functioning spark plugs, etc. If otherwise, a problem occurred and the check light came on. The driver then found and corrected the cause and then reset the engine error.

To do this, you need to use a special diagnostic connector into which additional equipment is connected. Note that the vast majority of cars produced after the 2000s have a standard connector. This connector is called OBD2. The location of the connector may be the area near the pedal assembly, under the steering column, etc. For an accurate determination, you need to look at the technical manual for a specific vehicle model. On older models, such a connector may be located in the engine compartment and other places. Please note that to connect equipment in such a case, you may need a special adapter.

Supply system

If the Priora engine (16 valves) is tripping, the reasons may be trivial. When there is no flash in the cylinder, perhaps there is simply no fuel there. If it has a normal compression ratio, it is worth diagnosing the power system. You should pay maximum attention to the air filter and the pipe. It is necessary to make sure that the clamps are securely tightened, whether the purifier body itself is intact, and whether there is any air leakage from the outside. Also pay attention to the tubes. They must be tightly secured to the throttle assembly. Fuel leaks, cracks, and broken plastic may indicate that some parts are faulty.

How to check engine errors and erase the error in the ECU memory

To carry out engine diagnostics and read error codes, as well as to reset them, many drivers prefer to go to a service station where there is a scanner. Service station specialists, at the owner’s request, can issue a printout that will display the error codes recorded in the control unit’s memory. Note that this procedure is optimal in the case when the check is constantly on. If the error is “floating” (the check periodically lights up and goes out), then a visit to the service may not yield anything.

In such a situation, you can buy a scanner for personal use, but its cost and the need to study the features of the software make this method impractical, especially when it comes to diagnosing only one car. Let us add that the scanner is used in parallel with a laptop or personal computer, which creates additional inconvenience.

All kinds of third-party BCs (on-board computers) also rightly belong to similar ones in terms of ease of use, cost and feasibility of purchase. The solution is capable of reading and deciphering error codes and displaying additional information about the parameters and operating modes of the internal combustion engine. At the same time, the BCs require proper connection and separate installation in the cabin.

Among the main advantages of such adapters is that the device is a small, compact “box” that is inserted into the diagnostic socket of your car. This means that the need to connect, lay wires, place the device itself in the cabin, use a PC and perform other additional actions is completely absent.

The adapter in the connector remains almost invisible and connects to a tablet or smartphone “over the air” thanks to bluetooth/wi-fi technology. This is especially convenient when the engine error lights up periodically. In other words, you can drive with the adapter in the connector as long as you like, and at the moment the check light comes on, immediately read the fault code. You only need to secure your smartphone or tablet to a stand or holder to be able to monitor the readings on the screen while driving.

As for the software, it may be supplied with the adapter. The necessary programs are also available in the Play Market for Android and similar solutions for devices on other operating systems. The software must be installed on a smartphone/tablet. Note that among the various available solutions, the Torque program is very popular (a free version of this application is available in the Market for Android). The program allows you to flexibly customize the interface, has the ability to not only read, but also decipher errors, and has the ability to reset engine errors.

The process of diagnosing a car using a tester or a connected computer

Much more accurate and reliable data when checking a car for malfunctions can be obtained if you use separately connected equipment. But the introduction of such tools and devices gives encrypted readings, therefore, in order to correctly understand and find all the faults in the car, you need to decrypt the data received from diagnostic devices. Of course, manufacturers could have done things easier for Russian-speaking car enthusiasts. It would be possible to write “replace the canister valve” on the device screen after diagnostics, but instead, only a code in the form of p0441 can be found on the display, and code p0130 will appear only due to problems with the oxygen sensor.

But the problem is that Lada Priora is produced not only for the domestic market, it is also produced for sale in other countries. Therefore, such a classification of automobile problems and their code on the testing device was created.

It is easier to enter only a certain number of universal codes into the program than to enter your own language data for each national market . As a result, you can look at a specific code on the display and easily determine the essence of the problem in the car using a list that lists all encrypted codes. A special code is used to indicate error codes on the Lada Priora car. This cipher includes:

letter fault code;
digital code for the location of a malfunction in the vehicle design.

On the Lada Priora, all gap codes in the vehicle's operation will have five digits. Here is a complete list of Priora designations. The first character of the code will be a Latin letter. The letter “P” indicates problems with the engine, or more precisely with its electronic system. The letter “B” indicates problems with the interior electronics.

The letter “C” is present on the screen only if there are failures in the electronic system of the vehicle chassis. If combined errors occur in several operating systems of the vehicle, the letter “U” will appear on the display. The letter designation is followed by a number.

The zero indicator is indicated by the OBD-2 code. Numbers 1 and 2 show the company code, and the third digit is responsible for the backup code. The subsequent set of numbers conditionally shows the place where errors were detected during diagnostics. A zero code indicates the exhaust system. Number 1 indicates the fuel system, number 2 indicates the air supply system.

If there is a malfunction in the ignition, then the number 3 will appear. If there are problems with additional control, the number 4 will appear. If there are malfunctions in the idle speed, then the number 5 is responsible for this, and if there are problems in the ECU, the number 6 will appear. Numbers 7 and 8 are associated with the transmission In the general code, the very last two digits indicate the error number in the operation.

What's the result?

Ease of use and accessibility allow adapters for the diagnostic connector to significantly simplify the procedure for checking a car, reading and decoding ECU errors. It is also worth noting that the error can be quickly reset without having to disconnect the battery terminals, erase a critical error, etc.

Finally, we would like to add that among the commercially available adapters, there are devices that may not read errors recorded in the ABS unit and Airbag airbag modules. In other words, information on these items may not be available. For this reason, before purchasing an adapter, it is necessary to separately clarify the possibility of reading errors from the memory of the above and other ECM modules by one or another device.

Why does the check light light up on the dashboard? Is it possible to continue driving a car if the check engine light is on? What should you check first?

The main signs by which you can determine problems with the DPKV crankshaft position sensor. Causes of failures, breakdowns, self-check.

For what reasons may misfire of the fuel-air mixture occur in one or more cylinders? Fault diagnosis, recommendations.

Computer diagnostics of a car engine and other units: why it is necessary and what malfunctions it identifies. How to check the car yourself.

The main reasons that lead to a lean mixture. A lean mixture on carburetor and injection internal combustion engines, as well as on engines with gas equipment. Diagnostics, repair.

Operating principle of the ECU, board design and connectors. ECU data processing, CAN bus. Causes of malfunctions of the engine control unit, repair or replacement of the unit.

We dump our brains on Mitsubishi Karizma

According to the display, if there is no standard radio with a “Disp” button (it remains in a text file on the computer, I can’t check it now, but I think I tried it before, everything worked on the first Kara with a non-original radio).

Press and hold the left button, turn on the ignition (do not start the engine), while holding the left button pressed - the SET button - you can switch the computer readings

To see the consumption when the engine is on and the “power reserve” display is set, press M (with the left button pressed). The display proceeds to set the consumption readings: liters per kilometer or kilometers per liter, and at the same time displays the current consumption. Pressing Set returns everything to its place. Tested on cars with and without standard radio. The readings are reset with the same long press of the left button.

To switch modes, you need to simultaneously press the left and set. Doesn't have to be long. This all works when you turn on the ignition with set pressed. If you just turn on the ignition, the mode cannot be changed.

Hold the “A” button longer, the one closest to the steering wheel. And the reading that was selected will be reset to zero.

How to enter the display service mode

We press and hold the nameless button, turn on ACC, hold the button all the time, press H twice, then SET and enter the service, switching SET.

The reset is done this way: on the BC display, press and hold for 6 seconds (or until reset) the leftmost button.

We train our brains on Mitsubishi Karisma after resetting

Warm up the engine to operating temperature, turn it off, remove the battery terminal for 10-20 seconds, and put it on.
With consumers turned off, turn on the ignition for 10 s, turn off for 20 s, start the engine and let it idle for 10 minutes (all consumers should be turned off!).
Turn off for 20 seconds, start again, turning on all possible loads (headlights, air conditioning, radio, heated seats, windows, interior lights, etc.), let it run for 10 minutes.
Turn off the ignition for 10-20 s.

For everyone whose idle speed floats after they removed the terminals from the battery for some reason or reset their brains. After this, you need to train the computer XX again and this is described in detail in the instructions. For those who don’t have them, I’ll explain. Under the hood is a fuse and relay box. — Open the lid, find the air conditioning relay and its 25A fuse, after warming up the internal combustion engine to operating temperature, take out the whole thing. — Start the car and let it idle for 10 minutes, it may float a little but be patient. — After 10 minutes, turn off the car, put the relay and fuse in place, close the lid and hood, start it and enjoy smooth speed. PS This procedure perfectly regulates the idle speed, but only if the engine is OK.

How to reset a check on a Priora yourself

Probably every VAZ owner has encountered such a problem when, out of the blue, the “chek” error comes on. Here many people immediately panic. Don't worry, there's nothing wrong with it. Firstly, this error appears when any sensor fails (here you will have to suffer and determine which one), but all this is determined by changes in the behavior of the car: dynamics, consumption, etc. Secondly, this error appears when the wrong mixture enters the combustion chamber. This can happen in two cases: some sensor is not working correctly, or low-quality gasoline. Try using higher quality fuel the next time you fill up.

However, even if you correct the problem, the “check” will continue to light up. Many people go to computer diagnostics to clear an error, where they pay about 150-200 rubles per minute. Although it’s not a lot of money, why? If you can reset the error yourself, spending the same minute on it, and you don’t have to go anywhere. Don’t know how to reset the check error yourself? Very simple, read below.

We reset the error.

To do this, turn on the ignition without starting the car.
Open the hood and remove the positive terminal of the battery.
We wait from 10 seconds to a minute and seat the terminal back.
Close the hood.
Turn off the ignition.
Turn on the ignition and start.

And then a miracle, the error light stopped lighting.

Even if you cannot decide why your check light came on, do not immediately run to diagnostics. Try to reset this error using the method described above. There are simply cases of accidental operation (there was an impurity in gasoline and the like). And then after the reset the error simply will not appear again. And if, nevertheless, there is some kind of problem, then the “check” will pop up again, after 50 kilometers.

Check Engine Light comes on when your vehicle's computer detects a problem with the powertrain. This may indicate a serious or minor complication, but ignoring it will definitely make the problem worse, leading to significant damage and costly repairs. You can avoid all troubles if you know the reasons for the signal. However, it sometimes does not turn off despite solving the problem. In this case, it won’t hurt you to find out how to reset the “check”.

Most drivers get annoyed if the check light still does not go off, even if the car problem has been corrected. In this case, your car's computer is faulty and a little intervention is required to resolve the issue.

Running self-diagnosis, reading error codes, erasing errors (check engine)

Hello, tell me how to reset the error: Before starting the engine, I disconnected the air flow sensor (the connector on the air filter cover), and then I forgot to connect it and started the engine, after which it shows an error on my panel - the Engine System Malfunction Warning Light (orange) came on. . I turned the sensor back on, but the icon did not go out. How can I reset this error? Thanks in advance for your answer

Try this: To check 1. Turn on the ignition (without starting the engine), count for 3 seconds. 2. Quickly (within 5 seconds) press the gas pedal all the way 5 times 3. Immediately after the last press (release the pedal completely), count 7 seconds. 4.Press the pedal all the way and hold it until the CHECK (MI indicator) starts flashing. 5.Release the pedal and read the codes

four series of 10 flashes code 0000 - no problems detected if, for example, code 0102 - looks like this: 10 flashes // 1 flash // 10 flash // 2 flash. // — pause after reading the last error, everything repeats in a circle until you turn off the ignition.

We erase the errors that we received during check 0. Before performing step 1, the ignition must be turned off for at least 10 seconds 1. Turn on the ignition (without starting the engine), count 3 seconds. 2. Quickly (within 5 seconds) press the gas pedal all the way 5 times 3. Immediately after the last press (release the pedal completely), count 7 seconds. 4. Press the gas pedal all the way and keep it pressed until the “check” blinks in four series of 10 flashes

Using the Scanner

Using a scan tool is the easiest way to reset your check engine light. Here are 5 simple steps:

Connect the scan tool to the OBD connector under the steering column. A laptop or tablet with the appropriate software is installed in the holder;
Then turn on the car’s ignition and turn on all the gadgets accordingly;
On your mobile device, in the appropriate section, press the “READ” button to view engine error codes. We write down the codes with a pen in the order in which they were received. This will be necessary for subsequent repairs.
We delete the error code. Press the “ERASE” button on the scanner. The Check Engine light will turn off when all error codes are cleared. Some scanning tools have many options, such as freeze frame, which captures the sensor readings. When deleting codes, these readings will also be deleted. Note: in some scanners, the option to clear codes may be automatic and the “CLEAR” or “YES” button instead of the “ERASE” button.
Be sure to turn the ignition on before clearing codes.

Deciphering faults in the fuel and air systems

P0030 - the oxygen sensor heater wire to the exhaust gas converter has broken;
P0031 - the same electrical wire has shorted to ground;
P0032 - the same wire has shorted to the on-board network (BS);
P0036 - the wiring of the oxygen sensor heater is broken, after the converter;
P0037 - the same wiring has shorted to ground;
P0038 - it has shorted to BS;
P0102 - weak signal in the mass air flow sensor network;
P0103 - very strong signal in the network of this device;
P0112 - weak signal in the air temperature sensor network;
P0113 - very strong signal in the network of the same device;
P0116 - antifreeze temperature sensor signal is out of operating range;
P0117 - poor signal from the antifreeze temperature sensor network;
P0118 - very strong signal from the antifreeze temperature sensor;

Battery disconnect method

Disconnecting the battery is an old way to reset the check engine light. Here are three steps to clear the check using this method: Step 1: Disconnect the cables from the battery. At this point, you should use a wrench to unscrew the positive and negative cables.

Step 2: Discharge the remaining electricity. The next thing you should do is press and hold the car horn for about 30 seconds. This action will help drain the car battery.

Step 3: Wait and reconnect the battery. After disconnecting the battery cables and draining the remaining electricity, all you have to do is wait about 15 minutes and then plug the battery back in. Error codes will be cleared. (Note: This method may not work on some vehicles.) If after this procedure the “check” lights up again, this may mean that the problem is still much more serious.

Resetting the brains of VAZ

In order to “reset the brain” or reboot the computer of the VAZ car, press the daily mileage reset button, without releasing it, turn the key to start. The instrument combination goes into self-test mode. There is a threefold deviation of all needles (tachometer, speedometer, engine temp., fuel). If at this time you press the engine daily mileage button again on the mileage panel, the firmware version will appear, if you press it again it will show errors. If there are no errors, it shows ZERO. If there are errors, remember them, press the daily mileage key for 2-3 seconds and reset the error (ZERO appears).

Resetting the computer after removing the battery on a VAZ

When the battery is removed, the computer is reset and current data on the operation of the sensors is erased. This is where the main problem lies. Since when installing the battery back, the basic conditions for the normal further functioning of the car are not met. To do this, it is necessary to correctly connect the new battery so that the engine will subsequently delight you with its operation and not cause trouble.

Warm up the engine to operating temperature, preferably while driving.
We remove the NEGATIVE terminal from the battery for 3 minutes, the computer memory is “zeroed”.
Reinstall the terminal. If the battery was completely removed, first connect the POSITIVE terminal
WITHOUT touching the gas pedal, we start the engine.
We warm up for 10-15 minutes, information is collected from the sensors of the on-board systems.
Turn off the ignition to record data into the computer memory.
We start the engine and accelerate to 50-60 km/h, followed by a complete stop.
Turn off the ignition to record data from speed sensors, gearboxes, etc. into the computer memory. working while moving.

Allow the check engine light to go off on its own.

Wait until the “check” goes out on its own. The simplest method because you don't have to do anything. The computer system in most vehicles will automatically recheck for problems that may activate the error light. If it is a minor problem, it will automatically correct itself and the check will go off. However, if the check light is still on after three days, you need to apply the methods mentioned above to reset it.

If this continues to happen despite the following reset procedures, you should take your vehicle to your nearest auto repair shop and have it diagnosed by a professional mechanic. Professional diagnostics use more sophisticated tools and can identify precise problems.

REMEMBER: You can always contact our car service center, where your car will be happy to receive professional technical assistance. You can also make an appointment with us for a scheduled technical inspection! Please familiarize yourself with our car repair and diagnostic services.

To check instrument panel error codes, you need to enable test mode. To do this, you need to press the daily mileage reset button and, without releasing it, turn on the ignition. All familiar positions should light up on the liquid crystal display (LCD), and the arrows of the tachometer, speedometer, coolant temperature indicator and fuel level indicator should move from minimum to maximum values and back. The serviceability of the LCD and the above sensors is visually checked.

Press any key to switch functions of the on-board computer (BC). The program version is displayed on the LCD.

Press the BC function switch button again. The LCD should display (if present) the following error codes:

2 – increase the voltage of the on-board network,

3 – fuel level sensor error*,

4 – coolant temperature sensor error*,

5 – error of the external temperature sensor (if there is no sensor reading within 20 seconds, indication on the LCD is “-C”),

6 – engine overheating**,

7 – emergency oil pressure**,

8 – brake system defect**,

9 – battery is discharged**,

E – detection of an error in a data packet stored in EEPROM.

*- if an open circuit of the sensor is detected within 20 seconds

**- the criterion for triggering the acoustic alarm is met

If necessary, you can reset error information. To do this, press and hold down the daily mileage reset button for 3 seconds.

The next time you press any of the BC control buttons, all familiar positions should light up on the LCD - the system has returned to its initial state.

If you do not press any control buttons for approximately 30 seconds, the instrument panel enters the operating state.

Errors on-board computer Kalina/Priora

0102 Low signal level of the mass air flow sensor 0103 High signal level of the mass air flow sensor 0112 Small level of the intake air temperature sensor 0113 High level of the intake air temperature sensor 0115 Incorrect signal of the cooling water temperature sensor 0116 Incorrect signal of the cooling water temperature sensor 0117 Small signal of the temperature sensor cooling water 0118 Cooling water temperature sensor signal too high 0122 Throttle position sensor signal too low 0123 Throttle position sensor 0130 Oxygen sensor signal 1 incorrect 0131 Oxygen sensor 1 signal too small 0132 Crankshaft sensor 1 0133 Slow response oxygen sensor 1 0134 Lack of oxygen signal signal 1 0135 The oxygen heater is the oxygen sensor 1 0136 Earth Close oxygen sensor 2 0137 Small oxygen signal signal 2 0138 The oxygen sensor 2 0140 Oxygen sensor 2 0141 The Oxygen Helpers of the Oxygen Coil 2 0171 Very Blagod naya mixture 0172 Very rich mixture 0201 Injector 1 control circuit open 0202 Injector 2 control circuit open 0203 Injector 3 control circuit open 0204 Injector 4 control circuit open 0261 1 circuit short to ground 0264 Injector 2 circuit short to ground 0267 Injector circuit short to ground sunki 3 0270 Short to ground in the injector 4 circuit 0262 Short to +12V in the injector 1 circuit 0265 Short to +12V in the injector 2 circuit 0268 Short to +12V in the injector 3 circuit 0271 Short to +12V in the injector 4 0300 Many misfires 0301 Misfires in 1 cylinder 0302 Misfire in cylinder 2 0303 Misfire in cylinder 3 0304 Misfire in cylinder 4 0325 Open circuit of knock sensor 0327 Low signal level of knock sensor 0328 High level of knock sensor signal 0335 Incorrect crankshaft position sensor signal 0336 Crankshaft position sensor signal error 0340 О phase sensor error 0342 Low signal level of the phase sensor 0343 Highest signal level of the phase 0422 Low efficiency of the converter 0443 Malfunction of the canister purge valve circuit 0444 Short circuit or open circuit of the canister purge valve 0445 Short to ground of the canister purge 0480 Malfunction of the cooling fan circuit 1 05 00 Incorrect speed sensor signal 0501 Incorrect signal speed sensor 0503 Speed sensor signal interruption 0505 controller error 0506 Low idle speed 0507 High idle speed 0560 Incorrect on-board network voltage 0562 Low on-board network voltage 0563 High on-board network voltage 0601 ROM error 0603 External RAM 0604 Internal RAM error 0607 Malfunction knock channel 1102 Oxygen sensor heater resistance low 1115 Oxygen sensor heater circuit faulty 1123 Idle rich 1124 Idle 1127 Partial Overload rich 1128 Partial Overload 1135 Oxygen sensor heater circuit 1 open, short circuit 1136 Rich mixture in Low Overload mode 1137 Lean mixture in Low Overload mode 1140 Measured overload differs from calculation 1171 Low potentiometer CO level 1172 High potentiometer CO level 1386 channel test error 1410 Canister purge valve control circuit short circuit at +12V 1425 Circuit control circuit of the canister purge valve, short circuit to ground 1426 Control circuit of the canister purge valve, open 1500 Open circuit, control circuit of the fuel pump relay 1501 Short to ground of the control circuit of the fuel pump relay 1502 Short short to +12V of the control circuit of the fuel pump relay 1509 Overload of the control circuit of the idle speed regulator 1513 Circuit regulator and single speed short short to ground 1514 Idle speed control circuit short short to +12V, open 1541 Fuel pump relay control circuit open 1570 Incorrect APS signal 1600 No communication with APS 1602 Loss of on-board power supply voltage to the ECU 1603 EEPROM error 1606 Rough road sensor incorrect signal 1616 Sensor rough road small signal 1612 ECU reset error 1617 Rough road sensor high signal 1620 RFOM error 1621 RAM error 1622 EPROM error 1640 EEPROM Test error 1689 Incorrect error codes 0337 Crankshaft position sensor, short to ground 0338 Position sensor crankshaft, open circuit 0441 Air flow through valve is incorrect 0481 Malfunction of the cooling fan circuit 2 0615 Starter relay circuit open 0616 Starter relay circuit short short to ground 0617 Starter relay circuit short short to +12V 1141 Malfunction of the oxygen sensor heater 1 after the neutralizer 230 Malfunction of the fuel pump relay circuit 263 Not serviceability of injector driver 1 266 Malfunction Injector Driver 2 269 Injector Driver 3 Malfunction 272 Injector Driver 4 650 CheckEngine Lamp Circuit Malfunction

Using the Scanner

Using a scan tool is the easiest way to reset your check engine light. Here are 5 simple steps:

Connect the scan tool to the OBD connector under the steering column. A laptop or tablet with the appropriate software is installed in the holder;

Then turn on the car’s ignition and turn on all the gadgets accordingly;

On your mobile device, in the appropriate section, press the “READ” button to view engine error codes. We write down the codes with a pen in the order in which they were received. This will be necessary for subsequent repairs.

We delete the error code. Press the “ERASE” button on the scanner. The Check Engine light will turn off when all error codes are cleared. Some scanning tools have many options, such as freeze frame, which captures the sensor readings. When deleting codes, these readings will also be deleted. Note: in some scanners, the option to clear codes may be automatic and the “CLEAR” or “YES” button instead of the “ERASE” button.

Be sure to turn the ignition on before clearing codes.

Problems with additional systems and ignition

If a spark does not occur in all cylinders or only in one of them, then a code from P0300 to P0304 may appear. If the detonation devices are broken, then the code is P0326. If the signal is weak in the same place, the code is P0327, and if the signal is too strong, the code ends with the number 28.

If there are problems with the crankshaft, code P0335, in this case: 0336 - the indicators are outside the limits; 0337 - short circuit; 0338 - network interruption. Errors P0342 - a weak signal is received from the phase sensor, and with P0343 - too strong. But if the number at the end is 46, then the data has gone far beyond the permissible limits. If there are problems with the coils and cylinders, then these are codes P0351-P0363.

Error p0422 indicates a breakdown in the neutralizer. If a situation occurs where “error 0422” appears on the display, this may indicate a decrease in the efficiency of the converter below the permissible threshold, and with code 0441, the error indicates a problem with the air valves. With codes 0480 and 0481 there is a problem with the fan.

Battery disconnect method

Step 2: Discharge the remaining electricity. The next thing you should do is press and hold the car horn for about 30 seconds. This action will help drain the car battery.

Air and fuel system problem codes

P0030 means that the sensor cable, which is responsible for heating the oxygen, has broken. The break is located before the exhaust gas neutralization system. If the cable of the same sensor is shorted to ground, then code P0031 occurs. If the circuit after the neutralizer is broken, the number 6 will appear at the end of the code. Code P0112 is a weak signal from the sensor that is responsible for the air temperature; if there is a strong signal, then code P0113 appears.

If there are problems with a weak throttle signal, then the code P0122 appears, and a strong one - P0123. If there is a problem with the oxygen device, then error P 0130 appears. With P0133, the response to the mixture comes slowly; if error P0134 occurs, the device does not work.

If there is a lot of air in the fuel, then the code is 0171, and if it is 72, there is a lot of gasoline in the mixture. Code P0201-P0204 indicates damage to the injectors and their cables. If there is a code 0217, then the engine is heating up; if it is 0230, there is a malfunction in the fuel pump. With codes from P0261 to P0272, problems need to be looked for in the injectors.

Allow the check engine light to go off on its own.

Oxygen sensor

The "check engine" warning sign indicates a malfunction of the engine. First of all, you should check the operation of the oxygen sensor. It relates to the exhaust gas production system, so it shows the amount of oxygen that has not been burned in the combustion chamber of the engine. The device provides control of gasoline consumption on a Lada Priora car.

If the sensor is broken, the vehicle's computer control system does not receive the necessary data, which can cause fuel consumption to increase and engine power to decrease. There are up to 4 oxygen sensors depending on the car model. At home, you can use a computer error scanner, or you can contact a service center.

Why does the oxygen sensor break down? The older the car gets, the larger the layer of used engine oil on the parts, which reduces the correct operation of the sensors. If you do not change and check the condition of the oxygen sensors in the Lada Priora, the catalyst will break, which may burst and lead to serious repairs. New catalysts are expensive due to the presence of valuable metals in them, so it is better to focus on preventing the problem. If the check engine light comes on, you need to look into the sensors and determine the reasons.

Check light on Priora - you need to know the reasons

When you turn the ignition key of a Priora car, all electronic systems are checked and the check light comes on for a few seconds, this is normal, as it should be. It’s bad when the check light doesn’t light up when you turn on the ignition, which means the check system isn’t working. If the checkbox on a Priora comes on and is lit when the car is started, the owner immediately falls into panic for some reason - at least in most cases. There's no need to panic, but I wouldn't recommend not paying attention. The engine has 16 valves - Priora is equipped with sensors in many components and this may indicate a breakdown. The check light is on on the dashboard of the Priora car, bottom left. Sometimes the check light comes on, you look, and it just drove through a puddle and the knock sensor got wet. The check light is on, it blinks when cold, but there is no need to panic, we need to look for the reasons. Let's make a reservation right away: there are false positives. Read the article and find out all the reasons why the check engine is triggered.

What kind of word is Priora?

Priora

translated from Latin
means
priority, first and best among equals.

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What is a check engine?

“Check Engine” is translated from English as “Check the engine.” On different cars, on the dashboard there is either such an inscription, or simply “Check”, or an engine icon. On the Priora, it is the yellow icon that lights up, resembling an engine in shape. “Check” lights up in two cases:

Checking the functionality of the sensors. When you turn on the ignition, all the icons on the dashboard light up, indicating that there is a signal from the ECU and the system is ready to operate. After 2-3 seconds of turning on the ignition, the icon will go out.
Malfunction of the engine operating system. There are several important aspects. Firstly, the ECU does not receive data about all breakdowns: it cannot technically record any mechanical damage. Secondly, the appearance of this icon may be erroneous. But you shouldn’t trust the opinion “it’s all for nothing” - a problem with the engine can grow like a snowball and cost a pretty penny if you ignore it. Regardless of whether the “check” on the Priora is on or flashing, the problem needs to be solved.

Decoding codes

What, after all, if you succeed in checking the car for defects, then you need to decipher the composition of errors, otherwise, for which diagnostics is absolutely necessary (the process of establishing a diagnosis, that is, a conclusion about the essence of the disease and the patient’s condition)

Self-diagnosis (the process of establishing a diagnosis, that is, a conclusion about the nature of the disease and the patient’s condition)

Let's take a look at the breakdown of compositions of defects that you can read when checking the Lada Priora yourself.

Please note: if the on-board computer function switch key is not pressed for more than 10 seconds, the instrument panel will return to operating status.

Failures in the ignition system

If you were unable to test your own VAZ Priora without the help of others, then you can do this using a special tester. In this case, the error code will be a combination of a letter and 4 numbers:

P - means a breakdown in the operation of the electrical systems of the internal combustion engine;
C - malfunction of the chassis;
B - breakdown in the electronics of the car interior;
U - indicates an error in the joint operation of various systems;
the number 0 indicates the OBD-2 code;
1 and 2 - company code;
3 - spare code.

Fuel and air system error codes

Priora: why the check is blinking or on - the main reasons

The diagnostic connector will help you “talk” to the electronic control unit and find out why the check light is on. Well, before you start diagnosing, check out the list of the most common Priora “errors”:

Low Oil Level – Low oil levels ultimately lead to increased engine wear. If the oil level turns out to be normal when checked, then it needs to be replaced and the integrity of all Priora components checked. Faulty fuel pump or fuel filter. You can’t always “hear” this, but diagnostics, replacing the filter, and checking the fuel pump will “cure” the breakdown.
An error in the operation of the exhaust gas system - this is not something to joke about - it is better to start repairs as soon as possible.
The ignition coil does not produce a spark / the catalytic converter is unstable.
Wiring problems - high voltage wires can give an erroneous signal to the ECU - "Check" will light up on the dashboard.
Malfunction of sensors - unfortunately, they very often fail. The “check” lights up due to the fault of the mass air flow sensor (MAF), two oxygen sensors (after the fuel afterburner and in the exhaust manifold), the crankshaft sensor and the camshaft sensor. In frosty weather, the “Check” may light up because three cylinders are turned on first, and then, during normal startup, it does not go away. This is due to the fact that soot particles remain on the contacts - they disappear after a few days.
False sensor activation due to high humidity
The engine starts running when cold and the check light comes on.

The reasons for the “Check” fire on a Priora (16 valves), as we see from the list, can be serious. There is no need to panic: when the “Check” light comes on, you need to immediately reach for the diagnostic connector. It’s funny, but earlier diagnostics were carried out in the service with special software, but today any error code can be displayed on your smartphone, deciphering it using a mobile reading device.

There is another reason for engine malfunction - low-quality gasoline.

If this causes the spark plugs to flood, you will see the “check” blinking. Low-quality gasoline can be sold at any gas station; experienced car enthusiasts advise carrying a couple of candles with them. Sometimes the “Check” light comes on due to gasoline and the engine stalls. If he continues to work intermittently, things will be bad.

“Check” should light up when the ignition is turned on. A malfunction is also considered to be the case when the check light does not light up when the ignition is turned on, that is, the ECU does not send a system check report stating that “the system is ready for operation” - there is a problem in the wiring. You need to get rid of the chek icon not so as to “hide all the problems”, but so that the process of processing the fuel mixture occurs in order. Otherwise, you will have to seriously repair the car.

To watch online, click on the video ⤵

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Source: putinizm.ru

How to reset "Check Engine" on Priora

If the check light is on, then there are two solutions to the problem: fix it, or reset it. The engine icon that lights up is evidence that the ECU has received information about some kind of malfunction in the engine and is informing the driver about it. All errors remain in the computer's memory, so in order to get rid of them without repair, they need to be reset or erased. You can reset a check by following these steps:

Turn off the engine, secure the car, and open the hood;
Find the fuse box, in the yellow group, remove F1 (30 Amperes) and wait about 20-30 seconds;
Put the fuse back and close the hood. Start the engine and check if the signal disappears.

Errors Lada Priora

Like any modern car, the Lada Priora is equipped with dozens of different sensors, the functioning of which determines the condition of the main vehicle systems. Diagnostics (the process of establishing a diagnosis, that is, a conclusion about the nature of the disease and the patient’s condition)

machine for errors allows you to find all sensor faults in order to eliminate breakdowns. At this point, you will learn how Priora error codes are deciphered and how to independently diagnose the on-board computer (hereinafter referred to as BC).