Decoding error codes for VAZ 2115 injector 8 valves

Table with errors

A complete list of faults with explanations and recommendations for troubleshooting:

Decoding of VAZ error codes is presented for the following models:

• 1118 Kalina (Kalina);
• 2104;
• 21041;
• 2105;
• 2107;
• 21074;
• 2109;
• 21093;
• 21099;
• 2110;
• 21102;
• 21103;
• 2111;
• 2112;
• 2113;
• 2114;
• 21114;
• 21124;
• 2115 with engine injector 8 and 16 valves;
• 21150;
• 21154;
• 2131;
• 2170 Priora (Priora);
• 2190 Granta (Grant);
• 2123, 21214, 2131 Niva (Niva);

Meaning and decoding of codes

During self-diagnosis of a VAZ 2115 with an injector, only numbers or flashes that code the error will be shown on the instrument panel. When reading trouble codes from an electromechanical instrument cluster, it is necessary to record the number of flashes and calculate error numbers from them. Their purposes can be deciphered using a special list. Most of these faults can be resolved independently by replacing failed sensors.

When performing diagnostics, it is necessary to take into account that the number on the screen may indicate two summed errors. For example, 9 indicates the presence of two faults - numbered 1 and 8.

An example of error 14 appearing on the panel

Table of decoding codes for flashes calculated during diagnostics.

The data obtained allows you to quickly find the faulty element and eliminate the cause of the error.

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The video from the Garage channel shows diagnostics on a VAZ 2115 using a scanner and laptop.

Controller errors

The most common controller errors encountered during diagnostics are listed in the table.

Reset errors

To do this, go to the error viewing menu, press the odometer reset key and wait a few seconds. The number 0 will light up on the screen - the error has been reset. In this case, data about problems is stored in the unit’s memory and must be deleted. If left, the “Check Engine” light will light up in the instrument cluster.

To reset the error, do the following:

1. Turn on the ignition.
2. Open the hood and remove the negative terminal from the battery. Wait about a minute, connect the wire back and close the hood.
3. Turn off the ignition.
4. Turn on the ignition again and start the engine. The Check Engine light may come on briefly and then go off.

If the symbol remains illuminated, there is an ongoing problem with some sensor or wiring in the vehicle. It can only be found out using a special scanner. It is necessary to conduct additional diagnostics to determine the problem node. Then carry out repairs and clear any existing errors using a computer diagnostic program for the ECU.

Resetting errors on cars with an electromechanical instrument cluster is carried out by disconnecting the negative terminal of the battery from the on-board network for 10 seconds. The ignition must be turned off.

As stated above, without deciphering error codes, diagnosing a vehicle is meaningless. Therefore, deciphering combinations should also be given attention. Especially if you don’t want to pay a lot of money to specialists at the service station for this. So, let's start with the combinations that appear during self-diagnosis of the car.

How to diagnose the error?

It is important to know

There are two options for diagnosing a VAZ car - testing using the instrument panel and using a computer. The second option is considered more accurate, but its implementation will require a special program and a cable for connecting to the diagnostic connector.

Checking using a computer is done like this:

1. The diagnostic wire is connected to the laptop. Its second end must be connected to the OBD2 connector in the Lada car. The location of this block differs depending on the car model; this nuance must be clarified in the service manual.
2. A diagnostic program is launched on the computer, which allows you to decipher error codes. To start the test, press the corresponding button.
3. The diagnostic process begins. Depending on the utility, the program can separately check the operation of the engine, transmission or electronics.
4. After the test is completed, combinations of faults will appear on the computer screen that need to be deciphered. Depending on the program, a description of the error may also be displayed immediately.

Diagnostics using the dashboard is performed as follows:

1. The car owner sits in the driver's seat and presses the daily mileage reset button on the odometer.
2. The key is inserted into the lock and scrolled to the “ACC” position.
3. The daily mileage reset button is released. The arrows on the speedometer, tachometer, and sensors will begin to quickly move from the minimum position to the maximum.
4. The odometer key is pressed and released. An inscription with the software version will be displayed on the instrument cluster screen.
5. After the third press of the odometer key, combinations of faults will appear on the screen.

Video: diagnosing a VAZ using the dashboard

The CarFance channel in its video showed in detail the process of testing a Lada car using a control combination.

Which one should I install?

Which oxygen sensor for the VAZ-2114 is worth buying? About the second generation there are two types of sensors. Old cars with 1.5 engines and an eight-valve cylinder head have sensors with code 0 258 005 133.

And models that were produced after 2004 were equipped with elements with code 0 258 006 537. What is noteworthy is that both lambda probes are produced by Bosch (at least that’s what it says on the label). The cost of a new sensor is about 1.2-1.8 thousand rubles.

How to reset the error?

Good to know

You can delete the error code from the memory of the VAZ control unit by disconnecting the terminal from the battery.

The reset procedure is performed as follows:

1. The vehicle's ignition system is activated, but the power unit does not start.
2. The engine compartment of the vehicle opens. Using a wrench, loosen the screw that secures the terminal clamp on the negative output of the battery.
3. After about one minute the contact is reconnected.
4. The engine compartment of the car is closed, the ignition system in the car is turned off.
5. The car engine is starting. If the “Check” indicator remains lit on the dashboard, it should disappear on its own after a few kilometers.

Problems and encodings do not match

Sometimes error codes indicate known working components. This is a big problem for VAZ-2115 owners, so we will give examples of why this could be:

• the sensors themselves failed, not the units;
• low-quality fuel was poured into the tank (often leading to the occurrence of combination P0300);
• clogged fuel and air filters need to be replaced;
• changes in the subtleties of engine operation due to the use of unauthorized software for the on-board computer;
• replacement of parts with non-conforming ones;
• failure of the computer diagnostic system.

If you do not have the necessary firmware to operate gas equipment, you will not be able to use the car at all. The computer will block it. It is interesting that the VAZ-2115 power unit is capable of digesting any gasoline, but its sensors are more sensitive to the quality of the fuel. Perhaps the manufacturer was in a hurry when installing a modern system on the “fifteenth”. Reviews from most motorists say exactly this.

The cost of diagnosing errors for VAZ at service stations in Moscow and St. Petersburg

Approximate prices for computer diagnostics:

Fault 1602

Most often, car enthusiasts encounter the P1602 encoding. It means problems in the electrical circuit of the vehicle. This error may be associated with the computer, broken wiring, or a malfunction of the computer itself.

The vehicle condition monitoring system constantly tests the battery, so often on a frosty morning the owner of a VAZ-2115 may encounter an unpleasant surprise on the display in the form of an error. With it, the car simply will not start. If you often encounter problems with P1602, then it makes sense to try to fix the problem by changing the firmware. Remember that you should only use official versions.

However, although the above situation occurs frequently, it is not the only reason for the indicated code to appear on the display. It is worth checking the car for the following problems:

• low voltage in the network (additionally, the sensors may also respond with errors);
• dead battery (in this case, the functions of the VAZ-2115 are blocked);
• short circuits in the wiring or broken wires in one of the sections of the circuit;
• increased load on the electrical circuit (occurs when installing powerful speakers and a subwoofer);
• problems with the generator, in which it produces insufficient current, which leads to constant use of the battery;
• failure of power grid measuring sensors.

Often the failure of various sensors leads to the fact that when you try to start the engine, the computer issues a dozen different codes. A malfunction in the operation of the on-board system itself also manifests itself. Moreover, in some cases, the car may simply not start, since errors do not simply transmit information, but prevent the engine from starting.

The best way to protect against the appearance of unnecessary codes is to change the on-board electronics software. However, it is important to use only official versions. Poor-quality firmware can easily destroy the entire electrical system of the VAZ-2115. It can send strange commands to all controllers at once.

System diagnostic methods

There are two ways to identify errors in Grant and its analogues. Both methods have clear advantages and disadvantages.

Self-diagnosis of Lada Granta

The principle of the method is to use standard systems installed on the machine. The procedure does not require connecting additional equipment or studying complex instructions. To perform the check, just follow a simple sequence of actions:

• simultaneously hold down the daily mileage reset button located on the dashboard and turn the key in the lock cylinder to position 2;
• if everything is done correctly, the machine will go into self-diagnosis mode, all the arrows will make a full revolution and the indicators will light up;
• Use the button on the steering column wiper position switch to select the required option;
• Information about the firmware version appears first in the list. By clicking on the positions further, you can see the required error combination.

Note!

If, when switching to self-diagnosis, any indicators do not light up, their circuits must be checked first.

The disadvantage of this method is the low accuracy of the indicators. The display displays compressed information about the breakdown, which can only indicate the direction from which to start looking for the problem. In the most popular versions of ECU firmware, network errors are noted as:

1. The specified Lada Granta error code indicates the presence of a critical power surge in the on-board network. In 90% of cases it indicates a short circuit or damage to electrical appliances.
2. You need to check the float sensor in the gas tank and its circuit. There may be a short circuit or damage to the sensor.
3. The motor has overheated or the antifreeze temperature sensor has broken.
4. Failure in the power supply circuit of the ambient temperature meter.
5. Additionally, it indicates overheating of the power plant or incorrect operation of the thermostat. Indirectly affects more complex faults such as cylinder head gasket breakdown.
6. The pressure in the fuel rail has dropped critically. You will need to check the pumps and the condition of the injectors. A popular error in the first generation Grant engine.
7. If the brakes have failed or the pads have worn out badly, diagnostics of the modules is necessary.
8. Severe voltage drop in the on-board network. There may be problems with the battery.

If “E” is displayed on the device, this indicates that the firmware is not working correctly.

Computer diagnostics

The next method involves connecting special equipment to the machine. The bottom line is this:

• there is a special connector under the dashboard;
• a laptop with the program is connected to the terminal via a special connector;
• device pairing begins;
• After establishing a stable connection and reading information from the BC, Lada Granta error codes will be displayed in the software window.

If everything is done correctly, special codes are displayed on the monitor. Moreover, each part of the code speaks of its own circuit.

Beginning (letter)

• P – the integrity of the electrical wiring is compromised or the sensors are damaged;
• C – probably the breakdown is in the suspension units, chassis;
• B – problems with the internal equipment of the car;
• U – resynchronization of several interconnected circuits is observed.

The following are standard notations:

• 0 – failure in the OBD 2 module;
• 1/2 – enterprise code (what this is is known only to the car manufacturer);
• 3 – malfunction of spare wiring parts.

The next part indicates the serial number of the on-board circuit section where the breakdown is located:

• 0 – exhaust cleaning device;
• 1 – motor air supply system;
• 2 – fuel lines, pumps and injectors;
• 4 – control devices;
• 5 – malfunctions or disruption in the operation of additional systems;
• 7/8 – transmission, chassis.

Next comes another two-digit number - the last part of the index points directly to the system where there is a problem.