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Error a6 gas boiler buderus. All error codes for Audi. Not a fatal error

Malfunctions, breakdowns of heating equipment are inevitable.Depending on the model of the Buderus boiler, the automation notifies the user about the problem with a code on the display or by flashing the corresponding indicator light.

This article discusses the causes of error 6a and provides practical advice on troubleshooting.

On a note!

The control boards of imported boilers react to changes in the parameters of the electrical network. Before you start troubleshooting Buderus or the heating system, it is recommended that you do the following:

  • check the mains voltage rating. 230 V is indicated in the Buderus passport, and if there is a significant discrepancy, malfunctions in the operation of the automation and the appearance of errors on the display are possible;

Checking the mains voltage with a multimeter

  • make sure that the boiler is properly grounded. Poor contact at the point where the wire is connected may cause a malfunction code to flash;

  • press and hold the OK button for 10 seconds (if it is provided for this Buderus model) - the error should disappear;

Press the OK button on the control panel of the Buderus U072 boiler

  • turn off and restart the boiler (Stand-by button on the front panel). If the 6a code is not removed, you need to deal with the causes that initiate it.

Press the Stand-by button on the Buderus U072 boiler control panel

Error 6a(2nd indicator flashing) - No flame burner.

The code is generated in the Buderus control board in the absence of current through the electrode of the boiler ionization sensor. There are several probable reasons, and in order to reduce the time for troubleshooting, it is advisable to adhere to such an algorithm of actions.

Step 1- backbone testing

Easy check of gas supply

If the facility has a gas stove, it is enough to light all the burners. It will immediately become clear that the pipe is not blocked, and the pressure of the "blue fuel" is normal (in terms of the intensity and uniformity of the flames). If the result is negative, you will have to look for the reason.

What to check

  • Shut-off valves ... During a long absence, the owners usually block the pipe, and then forget about it. In private houses, a security element such as a shut-off valve is installed.

Cocks with a yellow handle are designed to shut off gas in the pipeline

For gas pipelines, a normally closed device is used. Consequently, even with a short-term power outage, the mechanism will work and block the line. The boiler will stop and the Buderus automatics will show error 6a. The armature is cocked manually.


  • Filter ... Neglecting the frequency of its maintenance leads to the fact that pollution is reflected in the intensity of the gas supply: Buderus stops and issues an error 6a.

  • Gearbox status (in case of autonomous gas supply). Deterioration of thermal insulation, insufficient insulation of the street cabinet, and the head of the gas tank lead to icing: the fuel does not reach Buderus.

Reducer connected to gas cylinder

  • Tank fullness. The limiting production of volume reduces the gas pressure to a critical value. The boiler will not start, and the automation will show an error.

If no defects are identified, and gas is not supplied to Buderus, the probable cause of code 6a is the meter. But it is being sealed, so you will have to call the master.

Step 2- equipment testing

Ionization sensor

There are several reasons why he does not send a signal to the Buderus control board about the presence of a flame.

  • Electrode contamination. It is necessary to clean it from carbon deposits, dust, and error 6a will disappear.
  • Open circuit, short circuit of wires, poor contact in connectors, oxidation of plug lamellas - it is not difficult to visually identify and eliminate.
  • Wrong position of the electrode: it does not see the flame. It happens when the user is self-serving Buderus. For example, when cleaning the boiler burner nozzles, the sensing element is touched by an inaccurate movement. You can determine by the spark during ignition: is it sufficient to ignite the gas, where exactly it hits.

Gas fittings

Buderus boiler gas valve

  1. Test nipple (nozzle pressure)
  2. Adjusting screw for maximum gas flow
  3. Lid
  4. Minimum gas flow adjusting screw
  5. Connection for measuring the supplied gas pressure

The only thing you can do yourself is to check the integrity of the connected wires. It is not recommended to regulate the valve, all the more to disassemble the assembly - this is the prerogative of a professional.

The instructions for the Buderus boiler describe the technology for adjusting the fittings, but it is better not to engage in amateur activities - without proper knowledge, practical experience, it is impossible to competently do it. There will be problems with increased gas consumption, frequent malfunctions of the Buderus boiler, and errors on the display.

Burner

When the heating unit is idle for a long time, the holes of the nozzles are clogged with dust; during its operation, the smallest particles of soot settle on them (if the fuel is of poor quality, the fittings are not adjusted). Using a brush (for example, a toothbrush) and a vacuum cleaner, error 6a can be eliminated in a few minutes, and the boiler will resume operation.

Step 3- chimney check

Lack of oxygen, blockage of the air flow to the burner can cause error 6a of the Buderus boiler. First of all, you need to check the outside of the coaxial chimney. The formation of ice impedes the air flow, error 6a appears, the boiler stops.

If the user encountered this problem after the first start-up of Buderus in operation, it is advisable to invite a specialist. Probable causes of error 6a: incorrectly calculated channel diameter, route length, illiterately drawn up diagram.

For units with an open chamber, the vertical (booster) part must be at least the length recommended by the manufacturer (depending on the boiler power). You can't figure it out on your own.

The measures taken to restore Buderus' performance may not eliminate error 6a. In this case, the fault must be looked for in the boiler control board.

It is also worth checking when the unit stops shortly after firing up. 99% of the reason is in her; at home is not being repaired, it is changing. You can restore the module by flashing it, but only in a service center.

  • Ensuring stable operation of the boiler, reducing the risk of errors is achieved by connecting Buderus through a UPS.

Uninterruptible Power Supply SKAT

Stabilizers, strongly recommended by the managers of retail outlets, in the event of a power line break, interruptions in power supply will not help - they only smooth out the ripple, maintaining the voltage value within 220, with small deviations.

There are batteries in the power supplies for heating boilers, and in any case, the equipment will not stop.

  • The operation of Buderus with an open chamber is affected by the ventilation in the room. It is not difficult to check by increasing traction: for example, open windows, doors. If the reason is the lack of oxygen in the combustible mixture, error 6a disappears.
  • A rare case known from practice: the appearance of such a code was initiated by a glass crack on the Buderus panel ("window" of the boiler combustion chamber). During a visual inspection, you need to make sure that there is no mechanical damage, tightness around the perimeter.

The article discusses those causes of error 6a Buderus, which are eliminated on their own. It is not recommended to experiment, to expand the circle of troubleshooting, guided by the advice of different experts.

Imported gas boilers are expensive, and there are differences in the design of the modifications. There are enough arguments to understand: no result - to a professional.

If you have experience on how to fix error 6a in a Buderus gas boiler or a solution based on your experience - write in the comments to this article, we will try to consider your option and analyze it in detail in this article or one of the following articles.

All combinations of OBD2 format faults (OBD2) consist of five characters.

In the first place, there is always a letter indicating the type of system:

  • P - malfunctions recorded in the operation of the power unit or automatic transmission;
  • B - malfunctions in the functioning of body systems (central locking modules, body control systems, electric windows, airbags, etc.);
  • C - malfunctions in the running gear;
  • U - problems associated with the operation of electronics, as well as interactions between electronic control modules via CAN.

The second character always denotes the standard or specificity of the defect.

  • 0 - general index for all OBD combinations;
  • 1, 2 - personal code of the vehicle manufacturer;
  • 3 is a reserved character.

The third character identifies the type of problem:

  • 0 - malfunctions associated with the functioning of the fuel supply systems, air, as well as additional reduction in the toxicity of exhaust gases;
  • 1 and 2 - malfunctions in the air supply and fuel systems;
  • 3 - malfunctions recorded in the operation of one of the nodes of the ignition system, as well as devices for monitoring the misfire of the air-fuel mixture;
  • 4 - additional emission control system;
  • 5 - vehicle speed control system, as well as idle speed of the power unit;
  • 6 - malfunctions of electronic control models or wiring to which they are connected;
  • 7, 8 and 9 - malfunctions in the transmission.

The last two characters determine the number that corresponds to the ordinal number of the HBS combination.

Audi error codes can be displayed in four-, five- and six-digit formats.

It's important to know

The principle of displaying a combination of malfunctions depends on the version of the diagnostic hardware and software with which the check is performed.

Error table

Code

Description of common errors
012410 Malfunction in the air intake system
B100A 1BOn the Audi A4 B8 and other models, the B100A1B code appears when there is a malfunction in the airbag side airbag circuit located on the front passenger side
B1006 1BError B10061B - defective airbags or belts. The problem is either the sensors of these devices or the wiring.
B2000Code B200000 appears when the engine control unit is faulty. The problem is usually solved by flashing the device.
P17D8Overheating of the clutch system. This error is accompanied by a limitation of the engine torque. The cause of the problem may be a malfunction of the clutch disc associated with its natural wear. When read, the error can be output in P17D800 format.
P0046The drop in performance in the operation of the turbocharged unit
P0401On Audi A4 B6, 8E and other versions, this code denotes a reduced throughput registered in the exhaust gas recirculation system
P0403The control unit has registered a malfunction in the functioning of the EGR valve
P0420, (16804)Error P0420 is associated with a decrease in efficiency in the operation of the catalyst system registered in the first row of cylinders
P0421On cars in 2012 and other years of production, this code reports the low efficiency of the functioning of the front catalyst located in the front row
P0431Low efficiency of the front catalytic converter assembly. The problem is observed in the second row of cylinders.
P0442, (16826)The on-board computer registered a minor leak in the gas tank ventilation system
P0455In case of error P0455, the engine control unit reports the detection of a serious leak registered in the gas tank ventilation system
P100E, (004110)Incorrect torque to protect the turbocharger
P1296Malfunctions of the cooling system
P1479This error indicates a malfunction in the vacuum system of the brake booster. In some cases, the cause of the problem is a defective brake lining, as well as a lack of fluid in the expansion tank under the hood. You should also check the wear of the pads. With such a problem, an indicator with the inscription "Bremse" is lit on the dashboard
P1570Code P1570 reports the blocking of the powertrain control module. As a result of blocking, the operation of some systems may be disrupted, sometimes it is impossible to start the engine.
P2181General code indicating a malfunction in the cooling system, possible causes of the problem:
  • malfunction of the thermostat;
  • malfunctions of the engine control unit or cooling system;
  • malfunctions in the coolant temperature controller;
  • the use of low-quality or worn-out antifreeze, which led to the formation of precipitation;
  • clogging of pipes and lines of the cooling system;
  • worn hoses, loose clamps, or damaged lines causing consumables to leak.
P2263The control unit has detected a boost pressure regulation error
P2279Code P2279 or P227900 appears when there is no tightness in the intake system. Air leakage is possible through mechanical damage to the line or branch pipe. In case of error P227900, it is also necessary to check the quality of the hose connections and the tightness of the clamps.
P2681Error in the operation of the coolant bypass valve control mechanism. The power unit may overheat. It is necessary to test the operation of the thermostat, since with such a problem, disruptions in the operation of the engine cooling circles are possible.
Code

Fuel system malfunctions
P310B (012555)If on cars 2005, 2007 and other years of production the computer issues this code P310B, this indicates that the pressure in the fuel rail is outside the normalized values. The combination can be displayed as code 012555.

Possible causes of the problem:

  • failure or malfunction of the fuel pump as a result of natural wear and tear;
  • clogged mesh in the filter element;
  • incorrect readings sent by the low fuel pressure controller.
P0087 (P008700)The error code can be displayed as a combination of P008700. Literally, this malfunction is deciphered as "a decrease in the pressure level in the fuel line."

The error is accompanied by the following symptoms:

  • increased fuel consumption;
  • difficulties when starting the power unit "cold" up to complete refusal to start;
  • the transition of the vehicle to emergency operation with the impossibility of increasing the revolutions of more than three thousand;
  • when the power unit is started, the revolutions float, sometimes after starting the engine stops immediately.

Possible causes of the problem:

  1. Malfunction of the fuel pump located in the tank. Perhaps the problem is poor contact between the device and the wiring caused by oxidation or corrosion on the connector pins.
  2. Failure of the fuel pressure controller. Perhaps the problem is also related to poor contact of the sensor with the network.
  3. Incorrect adjustment of the fuel pressure valve. The main symptom of such a problem is a long engine start with prolonged cranking of the crankshaft by the starter. The fuel lines may be damaged or one of the clamps may be loose.
  4. Failure of the fuel injector. It is necessary to visually check the operation of these elements, and also test them with a multimeter.
  5. Wear of the pusher located in the high pressure fuel pump. The replacement of the injection pump pusher should be carried out at least every 50 thousand kilometers.
P0088The P008800 code indicates high fuel rail pressure. Perhaps the problem is a valve stuck, which has led to a malfunction of the fuel return lines. The cause may be a clogged fuel filter.
P0441, 16825, (001089)Code P0441 indicates a decrease in throughput in the fuel tank ventilation system (malfunction in the emission control system). It is necessary to check the lines for clogging.
P1250If an error P1250 appears on the tidy, this is due to a critically low fuel level in the gas tank. Sometimes the problem lies in the short circuit of the fuel volume sensor. If the fuel level is critical, this can be determined by the instrument combination.
P2400Malfunction of the gas tank ventilation system. The control unit reports that the supply of a pulse to the pumping device for checking fuel leaks is cut off. The problem may be a damaged cable or a short circuit of the contact elements.
R2838Code 2838 reports an incorrect pressure level recorded in the fuel rail.
  • breakdown or malfunction of the pressure sensor, disconnection or oxidation of contacts, damage to the wiring;
  • violation of the tightness of the fuel lines associated with damage to the hoses;
  • loosening clamps or bolts connecting the pipes to the fuel;
  • damage to the gas tank and fuel leak from the system;
  • malfunctions of the control unit;
  • malfunction of the fuel pump.
Code

Malfunctions associated with the operation of the particulate filter
0В38Malfunction of the particulate filter check light. Because of this, information about the malfunction of the device may not be displayed on the dashboard display. The user needs to test the operation of the light bulb marked K231.
R1465The control unit has registered a short circuit to the positive terminal in the electrical circuit of the pump for supplying fuel additives for the operation of the particulate filter. To eliminate the problem, a detailed diagnostics of the V135 device is performed.
P1466The problem is similar, only connected with a short circuit to ground. The user is advised to verify the integrity of the wiring, as the error may be due to its damage.
P2002Malfunction of the particulate filter installed in the first row of cylinders
P2452, P2453Malfunctioning particulate filter or differential pressure controller. The cause of the problem may be power line failures or an incorrect impulse flowing through it.
P3070Failure of the pumping device for supplying an additive for the functioning of the particulate filter element
P3071The on-board computer registered that the container with the additive for the functioning of the particulate filter was empty
P3083Damage to the power line supplying the DPF additive reservoir controller. The user needs to thoroughly test the operation of the element with the G504 marking.
Code

Errors in the formation of a combustible mixture
P0171Error P017100 or 0171 means a lean fuel mixture recorded when forming in the first row of engine cylinders
P0172Re-enrichment of the air-fuel mixture in the first row of the engine
P0174The engine control module reports the depletion of the air-fuel mixture when it is formed in the second row of cylinders
P0175Rich mixture registered in the second row of engine cylinders
P0263The control unit reports the deviation of the injection volume in the first cylinder of the engine. The problem can affect the formation of the air-fuel mixture.
P0300, (16684)This error appears when a misfire is detected in the air-fuel mixture in one of the engine cylinders. The malfunction can be displayed as a code P030000.
P0301The control unit has registered a misfire of the air-fuel mixture in the first cylinder of the engine.

Possible causes of the problem:

  1. Malfunctions of the fuel supply system, as well as the wrong composition of the fuel-air mixture. As a result of impurities contained in the fuel, the injectors could clog and function incorrectly under a certain operating mode of the power unit or constantly. Problems can be accompanied by "tripping" of the engine under high load at idle, after warming up or on a cold engine.
  2. Malfunctions in the ignition system, high-voltage wires and other components. Clogged spark plugs, the formation of carbon deposits on them, as well as breakage or poor contact of the coil are the most common causes.
  3. A drop in the level of compression or its spread in different cylinders of the engine. This can happen when the piston rings are worn or destroyed, or if they are stuck. The problem may appear if the gas distribution mechanism malfunctions.
P0302, (16686)On Audi A4 B5 cars and other versions, the P0302 error code is associated with the calculation of the misfire of the air-fuel mixture registered in the second cylinder
P0303The engine control unit has registered a misfire of the air-fuel mixture in the third cylinder of the power unit
P0304The combination P0304 appears when a misfire is detected in the air-fuel mixture registered in the fourth cylinder of the power unit
P0305The engine control unit has registered a misfire of the air-fuel mixture in the fifth cylinder of the engine
P0507, (16891)Code P0507 informs that the level of revolutions of the idle speed control system is significantly higher than the normalized values.
P1093Failure in the functioning of the system for determining the parameters of the combustible mixture. The cause of the problem should be found in the first row of the engine.
P1126Error 1126 appears when the air-fuel mixture is depleted in the second row of cylinders. The problem is related to the air supply, it can be too much or too little. It is necessary to test the oxygen controller as well as the air mass flow sensor.
P1127Re-enrichment of fuel in the system when adapting the air-fuel mixture. The problem manifests itself in the first row of cylinders when the power unit is operating under load, that is, at speeds above idle.
P1128The on-board computer reports the depletion of the air-fuel mixture when the power unit is operating under load. This means that the engine speed must be above idle. The problem is to be found in the first row of cylinders.
P1136Code P1136 appears when the air-fuel mixture is depleted in the first row of engine cylinders. The problem manifests itself when driving at idle speed.
P1137The control unit reports the re-enrichment of the air-fuel mixture in the first row of the engine. The problem was registered while the power unit was idling.
P1139The on-board computer registered a re-enrichment of the air-fuel mixture when the engine was idling. The cause of the problem should be sought in the operation of the second row of cylinders.
Code

Engine malfunction
P0010 (000016)Error 0010 - malfunction of the valve timing regulator, which led to misfiring in the first row of engine cylinders
P000ACode P000A00 is the result of a malfunction of the variable valve timing system
P10A4Malfunction of the intake air regulating flap. To eliminate the problem, it is recommended to dismantle and disassemble the elements of the air supply system, then clean them and remove traces of oil deposits. You should also disassemble the damper and clean it, check the operation of the electric motor.
P130ACode P130A00 appears in the event of a malfunction in the powertrain cylinder shut-off system. Error P130A00 may be accompanied by engine malfunctions.
P164BError code P164B00 appears when the engine fluid pressure sensor is not working correctly. In case of error P164B00, it is necessary to check not only the controller, but also the quality of the consumable. The malfunction may be accompanied by the appearance of an icon on the dashboard in the form of an oil can, as well as the inscription "oldruck".
P164DThe code can be output as a combination of P164D00. This error indicates an incorrect engine oil pressure value. The user needs to check the operation of the control sensor for this parameter. The cause of the problem may be the use of an expired consumable and filter. In practice, the error often disappears after changing the fluid and filter.
P0011, (16395)Codes P0011 or P001100 appear when the valve timing system is not working correctly to the late side. The control unit notes that the nominal value of the parameters in the first row of cylinders has not been reached.
P0012The on-board computer registered a malfunction of the valve timing system to the early side. The problem is fixed in the first row of cylinders and it is noted that the nominal shear value has not been reached. A detailed check of all components is required, including sensors and the control unit.
P0014The literal translation of this malfunction code is "the drive device of the variable valve timing system." The problem must be looked for in the work of the right rear release in the first bank. The control unit notes that the reason is a too early opening angle.
P0021The on-board computer notes that the nominal value of the lateral valve timing has not been reached. The cause of the problem should be sought in the operation of the sensors or cylinders.
P0024The control unit reports that the nominal value when the valve timing is shifted to the early side has not been reached. The cause of the problem may lie in the second row, in the camshaft. It is necessary to visually check the pulley, it may show signs of wear in the form of broken teeth.
P0068, (000104)Code P0068 means incorrect inlet air pressure, inaccurate weight readings are possible. The problem may be related to air flow, improper throttle angle, or malfunctioning flow meter. A detailed check of the MAF sensor for clogging is required - if the regulator is clogged, it must be cleaned.
P0125Error 0125 on the Audi TDI BAU and other versions of the car appears in the event of a low coolant temperature required for lambda regulation. It is necessary to check the operation of the sensor, but the problem may lie in the coolant itself, in particular, in its low quality. Sometimes the problem is the absence or low level of consumables, then the malfunction is accompanied by the appearance on the dashboard of the icon with the inscription "Coolant".
P0266The on-board computer registered a deviation in the volume of injected fuel on the second cylinder of the engine
P0269Deviation of the volume of injected fuel on the third cylinder. A possible reason may lie in the injectors, so it is necessary to check their integrity and performance.
P0272Deviation of the volume of injected fuel in the fourth cylinder of the engine
P0278Deviation of the volume of injected fuel in the sixth cylinder of the engine. It is necessary to test the operation of the injectors and the engine control unit.
P0430, (16814)On Audi A2, A6 C7 and other models of 2001 and other years of production, this code appears when the efficiency of the catalyst system is low. The cause of the problem is to be found in the second row of cylinders. The error may affect the functioning of the power unit as a whole.
P0411, (16795)Codes P0411 or 0411 appear when there is a problem with the secondary air supply system. If this error appears on the panel, the user needs to look for the reason for the drop in bandwidth.
P0491Code P0491 or P049100 appears when there is a decrease in throughput recorded in the first row of the secondary air supply system
P1130Error 1130 is a consequence of the depletion of the combustible mixture when the engine is running under load. The cause of the problem should be sought in the second row of the engine cylinders.
P1262Incorrect operation of the pump-injector valve installed in the first cylinder of the engine. The on-board computer notes that the problem is related to the signal going out of the control range, the pulse is below the critical limit. Error 1262 requires a detailed check of the N240 device.
P1297Code 1297 indicates a decrease in pressure in the pipeline between the throttle body and the turbine
P1335
P1423The microprocessor module has registered a reduced throughput in the operation of the secondary air supply system
P1483Reduced throughput in the operation of the secondary air supply system, the fault should be looked for in the first row
R1519Failure in the functioning of the variable valve timing device. The cause of the problem should be found in the first row of engine cylinders.
P1545Malfunction of the throttle control system
P1579The on-board computer notes that the adaptation has not started in the operation of the throttle control module. Engine malfunctions are possible, including reduced thrust and increased fuel consumption. J338 device check required.
P2004The 2004 code is fixed if the inlet flaps of the first cylinder bank for some reason do not close
P2006Code 2006 indicates that the intake flaps located in the first row of cylinders, for some reason, do not open.
P2007Error 2007 on B7 cars and other models is associated with a malfunction of the intake flaps. Elements located in the second row of cylinders do not open or do not open completely.
P2070, (008304)Variable intake manifold malfunction. The control unit reports that the damper is stuck in the open position and does not close. A possible cause may be a system valve that is out of order and must be replaced.
P2177The on-board computer registers the formation of a lean air-fuel mixture when driving at high speeds
P2187If the code P218700 appears on the display in A5, B8 or another model, this indicates the depletion of the combustible mixture when idling. The cause of the problem should be looked for in the first row of cylinders; the exact number is not indicated.
P2196The control module received a signal from the first oxygen regulator installed in row 1, about re-enrichment of the air-fuel mixture
P2886Code 2886 indicates a malfunction or low efficiency in the operation of the catalysis system, the problem is observed in the first bank of the engine
P3081The control unit reports a too low temperature of the power unit, possible causes of the malfunction:
  • failure of the thermostat or other structural elements of the cooling system;
  • leakage of antifreeze from the expansion tank or pipes as a result of their damage or loosening of the clamps;
  • the use of a low-quality refrigerant or consumable that has expired its service life;
  • malfunction of the motor control unit;
  • damage to the engine cylinder head gasket.
P3135Malfunction of the intake valve flap. The control unit reports that the lower limit in the operation of the devices has not been reached, which means that they do not open completely.
Code

Sensor malfunction
C1048 07 (455691)Failure or malfunction of the ride height controller
020BMalfunction of the temperature controller located at the inlet. Sensor G42 diagnostics required.
011 Breakage of the wheel speed sensor
B1017 15Error B101715 means there is a problem with the side airbag crash controller
B2010Malfunction of the rear view camera, it is necessary to test the device itself, as well as the quality of its connection to the network
901A13Malfunction of the front side airbag crash controller
C10AD 29Failure or malfunction of the power steering motor position controller. Error C10AD29 may be accompanied by the inscription "The impact shutdown system has been triggered." Possible deactivation of the electric power steering.
P0113, (16497)Increased signal level from the intake air temperature regulator. It is necessary to check the operation of the G42 sensor, as well as its connection to the mains.
P0134, (16518)The on-board computer cannot determine the presence of the first oxygen controller located in row 1 of cylinders
P0140, (16524)Code P0140 or 0140 appears when there is a malfunction in the second oxygen controller installed in the first row of cylinders. The control unit notes that it does not detect the activity of the regulator. The problem may be a kink in the cable.
P0234, (000564)Combinations P0234, P023400 or 000564 appear when the boost pressure sensor is broken. The parameters coming from the controller are out of the control range well above the upper limit.
P0299, 16683, (000665)Code P0299 or P029900 appears when the boost pressure sensor is not working correctly. This error indicates that the controller readings are out of the adjustment range. With error P029900, the controller values ​​are significantly below the minimum limit.
P0321, (16705)In case of error P0321, the control unit detects a malfunction in the engine speed controller. A detailed check of the G28 is required. A possible cause may be an incorrect signal from the regulator.
P0322, (16706)Breakdown of the IAC - engine idle speed regulator. In case of error P0322, no signal is sent from the device to the microprocessor module.
P0336Failure of the engine speed controller G28. Perhaps the malfunction is associated with fixing the absence of one of the teeth on the shaft.
P0340The combination P0340 indicates a malfunction of the camshaft position controller. The problem may be a malfunction of the regulator or poor contact with the wiring, as well as a clogged connector or the formation of rust on its pins.
P0706, (17090)Transmission controller malfunction. The engine control unit receives an incorrect signal or there is no impulse at all. In case of error P0706, the user needs to test the operation of the F125 device.
P1063Error 1063 on cars 1999 and other years of production appears when the fuel pressure sensor malfunctions. The problem is that the signals are out of the adjustment range. The pulse from the sensor was below the critical limit. It is necessary to test the operation of the device and its wiring.
R1177Code 1177 on Audi Q 5, B 4 and other versions indicates a malfunction in the operation of the lambda probe installed after the catalyst device in the second row. The control unit notes that the controller has reached the upper control limit. The problem should be looked for in the operation of the b2 s1 regulator.
P1539Code 1539 appears when there is an incorrect impulse coming from the clutch pedal controller. The user needs to thoroughly test the operation of the F36.
P1823Code 1823 appears in the event of a breakdown or incorrect operation of the pressure regulation sensor 3 installed in the automatic transmission. The user needs to test the operation of the N217 and its electrical circuit, as the problem may be wiring.
P2015Code P2015 can be displayed as a combination of P201500 or 2015. This error indicates a problem with the intake valve position controller. In case of error 201500, the user is advised to check the wiring, since the controller issues an incorrect signal.
P2020Code P2020 reports a malfunction of the inlet flap position controller located in the second row. The problem is related to incorrect data coming from the sensor.
P2225The 2225 combination appears when the nitric oxide controller located in the second bank is malfunctioning. The problem may be caused by the heating element.
P2556Literally, this code can be translated as "malfunction of the engine coolant level switch sensor". Look for the cause of the problem in the thermostat.
P2293Mechanical failure or damage to the fuel pressure controller. First, you need to visually inspect the sensor and if defects are visible on it, then replace it.
R2296Also a code indicating a problem with the fuel regulator. It is necessary to test the operation of the device and its wiring, since the reason may be a short circuit in the power line.
P3007Malfunction of the camshaft controller. The problem may be the absence of a signal from the sensor, which may be due to a damaged cable or a disconnected device.
P3030Failure of the second angle sensor of the throttle valve actuator. It is necessary to thoroughly test the operation of the G298 controller and its wiring.
U1113Decoding the U111300 code on the instrument panel using the Vag-Kom program - a malfunction of the rear ABS sensor. On cars A6, C5 and other models, this code appears when the controller is damaged or its poor contact with the mains. It is necessary to check the sensor connector.
C10C8Error code C10C800 appears when the air suspension sensor is faulty. It is necessary to test the quality of the connection, as well as the sensor itself.
Code

Electrical and electronic malfunctions
P0131 (000305)Invalid signal from the oxygen controller number 1 located in the first bank of the engine
B1015 1BError B10151B - failure or malfunction of the battery squib
B2000This error can manifest itself in the form of code B200049. The malfunction code indicates an internal failure of the microprocessor module. Most likely, the cause of the problem is software in nature, so a flashing of the device may be required to fix it.
P00B7A problem associated with the operation of the electronic thermostat of the engine cooling system. It is necessary to test the operation of the device, in particular, if the antifreeze circulates only in a small or only in a large cooling circle. The error can be displayed as code P00B700.
P164CAn incorrect signal is received from the controller for low pressure of engine fluid to the microprocessor module, which does not correspond to the normalized values
P0016The P0016 code can appear as a combination of P001600. This error appears when there is a discrepancy between the pulses between the camshaft and crankshaft position controllers. In case of error P001600, the user needs to test the connection quality and contacts of the G40 and G28 regulators.
P0017Inconsistency of pulses coming from the camshaft and crankshaft regulators. The user will have to diagnose in detail the operation of the G300 and G28 devices.
P0018Inconsistency of pulses from the camshaft and crankshaft position controllers. This refers to the sensors located in the second row of cylinders. Look for the cause of the problem in the G163 and G28 devices.
P0030The P003000 code is a result of a break in the power supply line of the heating system of the first oxygen regulator. With such a problem, the lambda sensor may fail. The reason is to be found in the first row of engine cylinders.
P0036Breakage or damage to the heating line of the second oxygen regulator located in the first row of engine cylinders
P0089An incorrect signal is sent from the fuel metering valve to the control unit
P0102, (16486)The combination P0102 appears when too low a voltage is applied to the engine control unit from the mass air flow controller. It is necessary to test the operation of the wiring, as well as the quality of the connection of the device. The cause of the problem may be a clogging of the flow meter, then it will need to be cleaned. To do this, you can use a special agent for carburetor engines.
P0106On Audi A4 8 E cars and other modules, the combination means an incorrect pulse coming from the intake pressure controller or air pressure sensor. The user needs to check the operation of the devices marked as G71 and F96.
P0116, (16500)Code P011600 indicates an invalid signal from the G62 refrigerant temperature controller
P0118Coolant temperature controller malfunctioning. The on-board computer reports an increased level of the pulse coming from the sensor. The user needs to diagnose the G62 controller.
P0122Invalid signal from the throttle position sensor. To find the cause of the malfunction, the user needs to test the operation of the controller potentiometer.
P0133The response time of the first lambda probe located in bank 1 of the engine cylinders is too high
P0135, (16519)
P0136Failure in the line supplying the second oxygen regulator. The problem is to be found in the first row of cylinders.
P0141The on-board computer detects a failure in the power line of the heating system of the second oxygen controller located in the first row of the engine
P0154, (16538)Lack of activity on the supply line of the first lambda probe installed in row 1 of cylinders
P0226Code 0226 appears with an incorrect pulse coming from the controller 1/2 of the gas pedal position. To eliminate the problem, the user needs to check the operation of sensors G79 and G185.
P0235Problems in the operation of the boost pressure controller. The control unit notes that the readings of the sensors are outside the lower limit of the control range.
P0238, (000568)Increased voltage level detected on the boost pressure controller supply line. With error P0238, the integrity of the power cable is checked.
P0327Reduced voltage value recorded on the supply line of the first knock controller. The user needs to test the operation of the G61 sensor.
P0328The on-board computer registered a too high impulse in the power supply circuit of the knock controller. A complete check of the integrity of the G61 sensor is required, as well as its correct connection. The problem may be clogging or rusting of the contact elements.
P0341, (16725)The combinations P0341 and P034100 appear with an invalid pulse from the camshaft position regulator. The cause of the problem may be the wear of the contact elements on the block or a clogged connector. The user needs to check the operation of the G40 sensor.
P0342On cars Audi C7, A7. Q3 and other versions, this code appears when a low pulse level is detected on the power line of the camshaft controller. It is necessary to test the quality of the connection and the integrity of the insulating layer of the G40 sensor cable.
P0343, (16727)Increased voltage level recorded in the camshaft position controller circuit
P0346Invalid pulse from the camshaft position controller. The user must test the G163 sensor in detail - the contact could have moved away from the device.
P0413Breakage or damage to the power supply line of the secondary air supply control valve. Detailed diagnostics of the N112 device is required.
P0501, (16885)Incorrect impulse recorded by the control unit during transmission from the vehicle speed regulator
P0550Code 0550 appears when damaged wiring or electrical failure of the pressure controller located on the hydraulic power steering
P0571Code P0571 on Audi F9, A 8, E8 and other models reports an incorrect signal coming from the stop light switch. Potential damage to the wiring or melting of the connector due to high line voltage.
P0600On Audi 80 B3, B4, 100 C3 and other models, the 0600 code indicates the absence of messages in the operation of the data bus of the drive unit. In other words, the malfunction must be looked for in the wiring and quality of the control unit connection.
P0606General malfunction code indicating a malfunction of the engine control unit
P0652Code 0652 appears when the voltage on the power line of the controller B is undervoltage
P0638On the Audi A 6 and other versions, this combination is due to an incorrect pulse from the throttle control module. If the element does not open or close completely, this will affect the functioning of the power unit as a whole. It is necessary to test the operation of the J338 device.
P0705Combination 0705 indicates a wiring failure powering the transmission shift controller. The cause of the problem is the function of F125.
P0727The on-board computer cannot determine the pulse coming from the idle speed control module of the power unit. The reason is the sensor or poor quality wiring.
P0851Short circuit to ground in the starter blocking control circuit. To understand what the problem is, you need to test the integrity of the cable and make sure that there is no damage to the insulating layer.
P1044Damage to the power line of the injectors
P1114This code indicates too high resistance recorded on the lambda probe supply line. The user needs to test the electrical circuit of the second controller installed in the first row of cylinders.
P1171Invalid impulse from the second throttle actuator steering angle controller. It is required to check the integrity of the body and the operability of the element G188.
P1206Code 1206 is the result of a break or malfunction of the wiring that supplies the injector located in the sixth cylinder of the power unit. It is necessary to diagnose the cable connected to the device marked N84.
P1256Code 1256 on vehicles with 16 valve engines appears when the wiring is broken or the coolant temperature sensor cable is short-circuited to the battery. It is necessary to thoroughly test the operation of the G62 controller.
P1268Code 1268 appears when there is a malfunction of the pump injector valve located in the third cylinder. It is noted that the readings from the device go beyond the adjustment range and are below the permissible threshold of values. The cause of the problem should be found in the operation of the 3-N242 device.
P1289Code 1289 indicates a short to ground in the turbocharger wastegate supply circuit. The control unit recommends checking the operation of the N249 device.
P1292Code P1292 appears when the wiring is damaged or broken, supplying the thermostat of the electronic control of the cooling system of the power unit
P1340Code P1340 appears when the pulses from the camshaft and crankshaft position controllers do not match. Need detailed diagnostics of sensors G40 and G28.
P1347Inconsistency of pulses from the crankshaft and camshaft position controllers located in the second row of cylinders
P1358An open or damaged power line in the power supply and ignition system control circuit. The problem is fixed in the second cylinder of the engine. The cause of the malfunction must be looked for in the coil power wire.
P1406Code 1406 is fixed by the microprocessor module in case of an incorrect pulse from the temperature controller. This refers to a sensor located in the EGR system. The user needs to diagnose the item labeled G98.
P1422Code 1422 is associated with a short to battery in the secondary air control valve circuit. A detailed check of the N112 device is required.
P1392The on-board computer reports an open wiring or short circuit plus on the line supplying the camshaft controller. This refers to the sensor located in the second row of cylinders. The user needs to thoroughly test the operation of the G163 device.
P1450Error 1450 is due to a short circuit to the positive terminal of the secondary air supply cable
P1473The on-board computer registered a damage or breakage of the electrical wiring supplying the pumping device for diagnosing the tightness of the gas tank ventilation system. It is necessary to test the wiring and the node itself for operability.
P1528This code indicates a break in the wiring of the variable valve timing system in the first row of cylinders
R1531Breakage or damage to the wiring supplying the valve timing sensor
R1547Code 1547 appears when there is a short to ground in the supply line of the turbocharger pressure limiting solenoid valve N75
P1577Breakage or damage to the electrical circuit connected to the solenoid valve of the right hydraulic motor support. The N145 sensor is subject to diagnosis.
P1588Code P158800 reports a damaged power line to the solenoid valves of the hydraulic mounts of the power unit. The cause of the problem should be found in the operation of sensors N144 and N145.
P1602The on-board computer reports a voltage level that is too low, registered at terminal 30 of the ignition lock. The cause of the problem may be the battery, generator, or the breaker itself.
P1606Failure or damage to the power line of the bad road fixing sensor. Also, this error may indicate an incorrect set engine torque from the anti-lock braking system control module.
P1624 (005668)Error P1624 on the Audi A4 8E and other models of 1988 and other years of production appears when an active request for the activation of the emergency lamp is active. It is necessary to check the transmission control module for DTCs
R1626The combination 1626 appears if the microprocessor module cannot receive messages from the transmission unit control unit
P1653The on-board computer cannot read data from the fault memory of the anti-lock braking system control module
P1654The code appears when it is impossible to read information from the memory of the dashboard malfunctions
P1747Open power line or short to ground in the solenoid valve voltage supply circuit
P1748General fault code indicating a problem with the microprocessor module. The reason may be either a software failure or a disconnection of the device, as well as moisture ingress on it.
P1757Code 1757 is general and indicates an open circuit in the power supply system. It is necessary with the help of a multimeter to ring out all the wires connected to the control module, as well as to the battery.
P1773The signal coming from the pressure controller in the hydraulic system of the automatic transmission does not correspond to the normalized values. It is necessary to check the operation of sensor # 1.
P1793No signal from the second gearbox output speed controller. Problem P1793 may be due to damaged wiring or a short in the line. The user needs to thoroughly test the operation of the G196.
P1850The designation of this combination is the absence of messages from the control module by the power unit. The problem indicates the complexity of the digital interface and the data bus. It is necessary to test the quality of the connection of the control unit to the vehicle's electrical network.
P1851Malfunction in the functioning of the data bus. The on-board computer does not receive messages from the anti-lock braking system control module.
P1857Code P1857 can be literally interpreted as "load signal - a fault message received from the microprocessor module." It is necessary to test the operation of the control unit, in particular, its connection via the CAN bus.
R1876Breakage or damage to the power line of the valve located on the front support of the car engine
R1923Error R 1923 on the Audi 80 PM and other models appears when there are errors in reading information from the fault memory of the motor control module
P2008Damaged wiring or short in the supply line of the intake flaps
P2009The on-board computer detects a short to ground in the intake manifold flap power supply circuit
P2014Damage to the electrical cable to which the intake flap position regulator is connected
P2122On the Audi 80 "barrel" and other versions, the combination 2122 appears in the event of a reduced signal coming from the accelerator pedal position controller. Look for the problem in the G79.
P2294Breakage or damage to the power supply line of the fuel pressure sensor. To remove this error, you need to test the sensor element (sensor) and replace it in case of breakdown.
P2403The on-board computer with error 2403 reports a break in the wiring or a power failure that supplies the pump controller for checking fuel leaks
P2563The control unit has registered an incorrect impulse from the boost pressure sensor position controller
R2626The on-board computer registered a damage to the power line of the linear oxygen regulator located in the first row of cylinders. The problem may be a malfunction of the matching circuit.
P3053On cars 1996 and other years of production, this code denotes a short circuit on the power line or an open circuit in the wiring connected to the starter mechanism. The ECM receives a bad signal from terminal 50.
P3103Malfunctions in the electric motor of the intake manifold flap actuator. The user needs to thoroughly test the operation of the V157 device.
P3348Code P3348 indicates a malfunction in the power supply circuit of the turbocharger control module. The cause of the problem is damaged wiring or a short circuit. Requires detailed diagnostics for device 1-J724.
P150A00Malfunctions in the operating range or characteristics of the electrical circuit that feeds the injector of the second cylinder of the engine
U0111No communication with the energy management system control module. It is necessary to test the operation of the control module and the main elements of the electrical network - the generator set and the battery.
U0115Lack of communication with the powertrain control unit, a possible cause of the problem may be a faulty wiring
U0121The control unit cannot determine the operation of the anti-lock braking system control module
U0155Lack of communication with the control module of the dashboard, data may not be displayed on the control panel or information will be displayed incorrectly
U1008The U100800 code appears when the attempt to read information from the fault memory fails. Look for the cause of the problem in the J533 data bus diagnostic interface.
U1121If, when reading errors on the Audi C4, B6 and other models, the U112100 combination jumps out, this indicates problems in the data bus. The malfunction is related to the operation of the steering module, the signal may not be received from the device.
U1123Code U112300 indicates a malfunction in the data bus, the control unit receives incorrect data on engine operation. It is necessary to check all the connectors and pads of the device.
Code

Problems related to lack of communication
U0028The digital data bus is damaged.

The main causes common to all the malfunctions described in this section:

  • disconnection of contacts as a result of vibration;
  • formation of corrosion or clogging, ingress of moisture on the connector;
    melting of contact elements on the block as a result of voltage drops;
  • damage to the cable, breakage of the electrical circuit connected to the device;
  • wear of the insulating layer on the line, which led to a short circuit in the wiring;
  • failure of equipment.
U0103On the Audi 100 in 44 body and other models, this code indicates the lack of communication with the gear selector
U0104The control unit cannot identify the control module for the cruise control system
U0111Lack of communication with the control device of the energy management system EPC
U0123The ECM cannot detect the presence of a yaw rate controller
U0128Malfunction of the control module of the electromechanical parking brake ("handbrake")
U0146Lack of communication with the control unit of the diagnostic interface of the data bus
U0151Malfunction in the microprocessor module of airbags
U0235Lack of communication with the adaptive cruise control system
U1003The control unit cannot detect the presence of the trailer recognition control unit
U1006Lack of communication with the nitrogen oxide sensor installed in the first row
Code

Transmission malfunctions
No request signal coming from the transmission unit control unit. It is necessary to check the operation of the module for faults.
P060AThe P060A00 code indicates an internal malfunction in the microprocessor device. Usually, this code does not appear alone, but together with combinations related to the operation of the clutch system. It is recommended to diagnose all components of the unit, as well as check the transmission control unit.
P17E0The P17E000 code indicates a transmission malfunction. The user needs to test the operation of the transmission gear unit.
P17E1The P17E100 error code is related to the operation of the automatic transmission. The problem could be caused by the hydraulic part of the unit or one of the sensors. Sometimes the malfunction consists of problems in the operation of the gearbox control unit.
P17D4The combination P17D400 on A3 cars and other models is associated with a mechanical failure in the transmission. A detailed check of the transmission unit for malfunctions is required.
P17D6The code can appear as a combination of P17D600. This error indicates a problem in the operation of the first clutch of the engine. The problem manifests itself only on vehicles with a robotic DSG gearbox (DSG).
P17D8Torque limitation due to temperature clutch failure. It is necessary to check the operation of the transmission board. The error can be accompanied by a combination of 8040.
P174FElectrical malfunction in the valves or solenoids of the transmission
P176BA malfunction registered in the operation of the second gear servo switch. The control unit notes that this device is not regulated. It is necessary to test the operation of the wiring and the switching device.
P178FProblems in the operation of the pressure control valve, the device is dirty. The element is located in the automatic transmission. The user needs to clean the device and if this does not solve the problem, then replace it. Depending on the reading equipment, the error code can be displayed in the format 006031.
P179DThe P179D00 error code appears when the oil cooling valve is malfunctioning. The problem may be caused by the device itself or its wiring. It is necessary to thoroughly test the operation of the automatic transmission and make sure that all sensors are working.
P179E 00Breakage of the linkage position sensor of the transmission unit. The problem with the P179E00 error may not be the sensor, but the transmission control unit.
P179F 00Error P179F00 stands for a malfunction in the operation of the controller of the included gearbox stage, incorrect operation of the regulator
P0730, (17114)Incorrect transmission ratio in transmission control systems. A check of the transmission control unit as well as the transmission sensors is required.
P0750On cars 1995 and other model years, this combination appears when the switching valve malfunctions under marking 1. It is necessary to check the functionality of the N88 device.
P0741, (17125)The on-board computer of the car reports the absence of torque transmission in the operation of the gearbox clutch. Detailed diagnostics of the torque converter is required. A possible cause may be a clutch problem.
P0783Malfunction of the control system for switching from third to fourth gear and vice versa
P1701Code P170100 appears when the control module is locked by the transmission unit. The user needs to test the operation of the microprocessor. In the event of such an error, the gearbox can go into emergency operating mode.
P1741Code P1741 appears when the clutch adaptation system malfunctions. The control unit notes that the mechanism has reached the upper adaptation limit.
P1742The code can appear as a combination of P174200. Literally, the error translates as "the adaptation limit is reached at the moment of the clutch closure."
P1753The P1753 combination appears when the Tiptronic F189 gearbox switch is malfunctioning. The control unit does not receive a pulse from this element. A detailed check of the quality of the connection and the integrity of the wiring is required.
R1890Transmission malfunction, which in practice is usually associated with damage or short circuit in the operation of the transmission switch control system. The problem may lie in the CVT control module or valve block, as well as the starting clutch control line.
P1743Code P1743 appears when the clutch slip indicator is malfunctioning. With such a problem, incorrect operation of the transmission unit, difficulties when shifting gears are possible.
P2755The transmission fluid sensor is faulty or the power supply circuit of the device is damaged. It is necessary to test the operation of the gearbox, including the unit control unit.
Code

Description of decimal codes
0004 Malfunctions in the control module of a car with an engine equipped with gas equipment. The cause of the problem may lie in the microprocessor itself, as well as in the elements of the gas installation. It is necessary to test the operation of the sensors of the equipment, as well as the gear device. In the operation of the latter, a leak can occur, therefore, a gasket diagnosis is required.
0013 Malfunctions in the actuator motor of the damper, which is responsible for supplying warm air to the passenger compartment. Detailed diagnostics of the motor connection is required, as well as the integrity of its wires. The electric motor V198 is subject to verification.
0020 Malfunction of the control button for the defrosting system of the right rear window. The problem may be a disconnected contact or a mechanical failure of the key. To find the cause, you should carefully inspect the control element, make sure the integrity of its guiding component, as well as the spring.
0032 Breakdown or malfunction of the evaporator temperature controller. A detailed check of sensor G308 is required.
0853 Malfunction in the operation of the electric motor blocking the accidental opening of doors from the inside
0885 Malfunctions or incorrect functioning of the electric motor for adjusting the height of the front of the front passenger seat cushion
1044 The control module is incorrectly coded. It is necessary to check the operation of the control module, the quality of its connection and the integrity of the connectors. If the problem is of a software nature, the unit will need to be flashed.
2811 Malfunctions in the system for determining the parameters of the air-fuel mixture
4014 The on-board computer registered a malfunction in the functioning of the valve timing control device
404ADamage to the power supply line to the outdoor temperature controller. A detailed check of the G17 device is required.
4051 A misfire of the air-fuel mixture was detected in one of the cylinders of the power unit
4054 Malfunctions of the first cylinder of the engine, possible problems with the formation of the air-fuel mixture
4063 No signal from the intake air temperature regulator 2. A detailed check of the G299 is required.
4096 Failure or damage to the power cable of the first lambda probe located in the second row of cylinders
4106 Problems associated with the formation of the air-fuel mixture, it is necessary to test the operation of sensors and cylinders
4698 Limitation of operation as a result of receiving incorrect data by the microprocessor module.

Possible causes of the malfunction:

  • breakdown or problems with the connection of anti-lock braking system sensors;
  • malfunction of the ABS control module;
  • lack of communication via the CAN interface.
4699 The on-board computer reports mechanical damage in the operation of the pump injector valves. An incorrect signal is sent from the Devices to the control unit.
4732 Fault in the supply line of the pressure control sensor labeled 2 for automatic transmission
4759 The control unit issues a warning about an error in the operation of the microprocessor module, an incorrect load signal is transmitted
5582 Faulty oil pressure sensor.

If the controller breaks down, the following symptoms appear:

  • incorrect operation of the engine (tripping of the power unit, decrease in power, extraneous metal knocking from under the hood);
  • the appearance of the Check Engine icon, as well as an indicator in the form of an oiler on the instrument panel;
  • drop in engine fluid level.
5670 On cars of 2011 and other model years, this code indicates an incorrect pressure level in the boost system
7080 No communication with the electromechanical parking brake control module. It is necessary to test the wiring, as well as to make sure that the parking brake sensor is connected correctly.
713DThe microprocessor module reports that incompatible software is installed in the electromechanical parking brake control unit. On some car models, an independent firmware update is required, this point should be checked with the vehicle manufacturer or dealer. It is recommended to entrust the installation of new software to specialists.
7141 The wrong software version is installed in the ride height control module. You need to make sure there is an updated firmware and install it if necessary.
7408 Problems occurred while reading data from the fault memory of the diagnostic digital interface of the data bus. The user needs to check the operation of the J533 device. Often the cause of the problem is oxidation of contacts or damage to electrical circuits.
7409 Incorrect message transmitted on the diagnostic interface of the data bus
8029 Malfunction of the main pressure valve, this problem can lead to malfunctions in the operation of the engine or other systems of the vehicle
9708 Malfunction of the transmission unit or clutch system. It is necessary to test the operation of the mechatronics, check the integrity of the clutch discs for wear. The malfunction may be accompanied by an inscription on the dashboard "gearbox mail function".
Code

Description of hexadecimal codes
00003 General error code in the operation of the engine control unit. It is necessary to check the quality of the module connection, since the cause of the problem may lie in the disconnection of the contact.
00166 Defective access switch and engine start authorization. The user needs to test the work of E415.
00230 Malfunction in the operation of the switch position P of the gear selector. A detailed check of element F305 is required.
00252 Failure or malfunction of the rear left bulb of the combination headlight. It is necessary to test the operation of the power supply. In the event of a lamp failure on many Audi models, a special sound signal is triggered in the cabin.
00256 Failure of the coolant pressure and temperature controller. It is necessary to check the correct connection of the device to the vehicle's on-board network. The problem is sometimes caused by a defective thermostat.
00257 Failure of the ABS inlet valve located in the front left brake circuit. It is necessary to test and, if necessary, change the N101 device.
00283 Failure of the speed controller installed on the front left wheel. The cause of the malfunction should be looked for in the operation of the G47 sensor.
00285 Front right wheel speed controller malfunction. A detailed check of the G45 is required.
00287 Failure or malfunction of the rear right wheel speed controller. The user needs to test the G44 sensor in detail.
00290 Malfunction of the speed controller located on the rear left wheel. The user needs to check the operation of the sensor marked G46.
00293 Malfunction of the multifunctional switching device F125
00302 Malfunction of the ABS solenoid valve relay, J106 needs to be checked
00322 Failure of the switching device of the interior monitoring system. The user needs to test the E-267 switch in detail, it is possible to disconnect the contact.
00384 Faulty optical data bus, the problem must be looked for in the integrity of the contacts or damaged wires
00446 Restriction of the functioning of the cooling system as a result of insufficient voltage level in the mains
00457 Malfunctions of the onboard power supply control unit J519, possible causes of the gap:
  • damage to electrical circuits or contacts on the block block;
  • internal device malfunction;
  • mechanical damage to the module;
  • moisture penetration into the control unit;
  • malfunction of the generator or battery.
00470 Malfunction of the data bus Comfort when transferring information over one conductor
00473 The on-board computer indicates a malfunction in the operation of the electromechanical parking brake control module. The J540 device is subject to detailed diagnostics.
00493 Defective sensor control module. The user needs to check the status of the connection quality, as well as the unit itself for damage. Requires detailed diagnostics of the ESP device (ECP) G419.
00496 Malfunctions of the front ride height controllers, possible causes of the problem:
  • failure of the sensor itself;
  • clogging of the sensor element of the controller with dirt or dust;
  • damage to the sensor power cable;
  • malfunction of the engine control unit.
00513 Malfunction of the engine speed controller. The user needs to test the operation of the G28 device. Poor contact may be the cause of the problem. This malfunction is usually accompanied by “triplet” of the power unit and malfunctions in its operation.
00514 Malfunctions or failure of functioning of the controller of the moment of ignition G4
00515 Hall sensor failure
00516 Throttle switch malfunction. The user also needs to check the operation of the idle speed sensor. The F60 device is subject to diagnosis.
00518 Throttle potentiometer malfunctions, need to diagnose element G69
00519 Malfunction of the intake manifold pressure controller. The user will have to diagnose in detail the operation of the G71 sensor, as well as make sure that it is well connected and that there are no defects on the power wire.
01521 Tire pressure controller malfunction, possibly damaged wiring
00523 Malfunction of the intake air temperature controller. It is necessary to check the functioning of the G42 sensor.
00525 Breakdown or malfunction of the oxygen regulator G39
00526 On Audi B5 and other models, this code indicates a malfunction of the brake light switch F
00532 The power supply voltage in the vehicle's on-board network does not correspond to the standardized indicators. It can be higher or lower.

Possible causes of the problem:

  • discharge or damage to the battery, which led to leakage of electrolyte;
  • malfunction of the generator device, in particular, one of its structural components;
  • incorrect connection or oxidation of contacts on the battery or generator;
  • the use of electronic devices of too high power.
00537 Malfunctions in the oxygen control system
00542 Failure or malfunction of the G80 injector needle travel sensor
00549 Flow signal appears
00550 Error 550 - malfunction of the fuel injection start regulator
00553 Malfunction of the MAF sensor. The user needs to check the integrity of the G70's casing as well as its heating element. The latter could become clogged and it may be necessary to clean it with a special tool to remove the dirt. If this does not help, then the sensor changes.
00560 Exhaust Gas Recirculation Malfunction.

Possible causes of the problem:

  • malfunction in the operation of one of the sensors (in order to solve the problem on your own, you need to check the controllers and change the non-working devices);
  • depressurization of the system as a result of damage to one of the pipes or lines;
  • loosening of clamps on pipelines;
  • malfunction of the control module.
00561 Problems related to the adaptation of the air-fuel mixture. It is necessary to look for the cause and start with oxygen sensors, as well as mass air flow.
00562 Malfunctions of the engine fluid temperature sensor and the level of consumables. It is necessary to check the operation of the controller and the quality of its connection. Poor contact may be the cause of the problem.
00575 Incorrect pressure level recorded in the engine intake manifold
00576 Malfunction of terminal output 15
00588 Failure or malfunction of the airbag squib installed on the driver's side. The user needs to test the operation of the N95 device.
00597 The on-board computer detects a discrepancy between the wheel speed signals. A possible cause could be the ABS sensors or poor contact with the wiring.
00604 Problems in the operation of the potentiometer of the air intake flap actuator. A detailed check of the G113 device is required.
00652 Malfunction of the transmission activation control system. It is necessary to test the operation of the controllers and the quality of the connection of the sensors. A possible cause may be a malfunction of the transmission unit control unit.
00656 Failure or lack of power on the line of connection of the front passenger seat occupancy sensor. Device G128 is subject to diagnosis.
00668 Incorrect voltage of the on-board network, fixed at terminal 30
00670 Failure in the throttle controller controller. Detailed diagnostics of the G127 is required.
00710 The defrost damper actuator motor is stuck or the device is disconnected from the mains. It is required to check in detail the operation of the V107 engine.
00716 Malfunctions in the operation of the air recirculation flap actuator. It is necessary to check in detail the operation of the V113 element.
00735 Failure or malfunction of the potentiometer of the executive electric motor of the air recirculation damper. Device G143 is subject to detailed diagnostics.
00739 Failure or lack of connection of the circulation pumping device of the engine cooling system. Because of this, antifreeze may not be pumped through the system lines, which can lead to slight or serious overheating of the power unit. A detailed check of the V50 is required.
00767 Failure or incorrect operation of the temperature sensor of the rear evaporator device. The user needs to test the operation of the G133 device.
00768 Breakage or malfunction of the rear heat exchanger temperature regulator. To check, it is necessary to remove and make sure that the body of the G154 device is intact.
00771 Failure or malfunction of the fuel level controller G
00776 Malfunction of the front left ride height controller. In the event of a breakdown, the sensor must be replaced; a detailed check of the G78 is required.
00778 Malfunction of the steering wheel angle controller. The cause of the problem is a broken G85 sensor.
00779 On cars in 2008 and other years of production, this combination is the result of a breakdown or malfunction of the outdoor temperature controller. The user needs to check the operation of the G17 sensor and make sure that it is in good contact with the wiring.
00792 On the Audi A4 B7 and other versions, this combination is read as a result of a breakdown of the pressure controller in the air conditioning circuit. Sensor F129 is subject to diagnosis. With such a problem, the possible incorrect operation of the air conditioning system.
00819 Failure or malfunction of the high pressure controller. It is necessary to check the wiring of the device and the regulator itself, its external damage can indicate a malfunction. The G65 must be tested.
00849 Failure or malfunction of the contact element S located on the switching device of the ignition system and the starter mechanism
00858 The connection between the audio system output and the antenna booster is malfunctioning. The problem lies in the wiring or contacts.
00955 Malfunction of key 1 of the control unit
00978 Failure or short circuit of the wire on the power line of the light bulb installed in the left low beam headlamp. The illumination source M29 is subject to diagnostics.
01044 On Audi Allroad and other models, this code indicates an incorrect coding of the engine control module
01049 The voltage of the vehicle's on-board network registered at the 30th terminal does not correspond to the standardized parameters. It is necessary to look at the battery, generator and wiring and replace the failed components.
01087 The on-board computer reports that the basic settings have not been made. Most likely, the reason lies in the operation of the motor control unit. The malfunction can manifest itself as a combination of 01087 005.
01089 Latch switch malfunction. The problem is typical only for a car in a convertible body, the car cover is folded. It is necessary to check the function of sensor F204.
01117 Invalid load impulse recorded at the generator terminal DF
01119 The gear detection pulse is out of specification. The problem may lie in the regulator of the transmission unit or poor quality of the selector connection.
01120 Failure or incorrect operation of the variable valve timing device 1
01126 Incorrect pulse from the crankshaft speed sensor
01130 Malfunction in the operation of the anti-lock mode of wheels
01152 Code 001152 appears when the fan control system of the first radiator engine cooling device fails or malfunctions
01165 Problems in the operation of the throttle valve control unit J338.

If a node does not work correctly, this is accompanied by the following symptoms:

  • difficulty starting the engine;
  • increased fuel consumption;
  • the appearance of jerks when driving, during a set of speed and an increase in the load on the power unit;
  • an increase in the volume of revolutions when the engine is idling;
  • delay when increasing the speed of movement;
  • the appearance of pops coming from the collector;
  • spontaneous stop of the power unit when idling;
  • the appearance on the dashboard of the Check Engine light, which can be lit continuously or intermittently.
01176 Malfunction of the electronic key. Perhaps the reason lies in the discharge of the battery, as a result of which the immobilizer cannot detect the device.
01177 Failure or malfunctioning of the control module by the power unit
01192 Malfunctions of the torque converter lock-up clutch
01200 Incorrect voltage recorded on the supply line of the valves of the ABS system
01206 No ignition timing signal
01207 Failure or malfunction of the control module of the additional heating device. A detailed check of J364 is required.
01217 Malfunction in the operation of the airbag squib installed on the side of the driver's side. The problem may lie in the N199 device or its poor contact with the car's mains.
01218 Malfunction of the side airbag squib located on the front passenger side. A detailed check of the N200 sensor is required.
01221 Failure or malfunction of the impact controller for the side airbag located on the driver's side. The cause of the problem lies in sensor G179.
01247 Malfunction of the solenoid valve of the first activated charcoal canister, device check N80 required
01268 Breakdown in the operation of the dispenser of the pumping device for supplying fuel, device N146 is subject to diagnosis
01271 Failure or malfunctioning of the executive electric motor of the damper of the air temperature control system. The V68 is subject to detailed testing.
01272 Malfunction of the electric actuator motor of the central flap, it is necessary to check the element V70. The problem may be motor connections or poor connections.
01273 Malfunction of the supply fan V2
01274 Malfunction of the executive electric motor of the air intake flap. The user needs to look for the cause of the problem in the operation of the V71 device.
01304 Audio system malfunction
01312 Fault on the data bus of the drive unit. It is necessary to check all the wires connected to the microprocessor module.
01314 Malfunctions in the control module of the power unit
01315 The engine control unit reports a failure or incorrect operation of the microprocessor to control the transmission unit (automatic transmission)
01316 Brake control module malfunction
01317 Problems in the functioning of the dashboard control unit. The user needs to test the operation of the J285 device.
01318 The microprocessor reports the failure or incorrect operation of the control module with the fuel pump. J399 node and its wiring together with contacts on the connection connector are subject to diagnostics in detail.
01331 Malfunction of the control module located in the driver's door. A detailed check of the unit marked J386 is required.
01336 On vehicles with a diesel or petrol fuel system, this code indicates a malfunction in the data bus of the Comfort module.
01366 Literally, this code translates as "opening as a result of the arrival of a shock impulse"
01367 The on-board computer has registered the deactivation of the central locking pumping device. The problem could be wiring or fuses. The cause of the malfunction is sometimes due to malfunctions in the pump motor.
01370 An emergency impulse is sent to the on-board computer from the interior monitoring system controller
01371 The on-board computer receives an emergency impulse from a limit switch located in the driver's door. The problem may be a jammed device. It is necessary to check in detail the sensor and its connection, oxidation of the contacts on the block is possible.
01375 Malfunctions of the solenoid valves of the hydraulic supports of the power unit
01376 Incorrect speed pulse for the gasoline pump
01389 Malfunction of the limit switch located on the tailgate. The device is stuck in the "open" position, which may affect the functioning of the anti-theft system. A detailed check of element F124 is required.
01393 Malfunction of the ride height controller. The control unit notes that the user needs to test the functioning of the G84 sensor.
01397 Failure or incorrect operation of the pressure relief valve in the ride height control system. It is necessary to make sure that the N111 sensor is well connected to the vehicle's on-board network.
01400 Malfunctions of the ride height control system
01403 The control unit reports the inoperability of the rear glass break sensors
01435 Malfunction of the first controller of pressure in the brake system, device G201 must be diagnosed
01437 The control unit reports that "an adjustable position is not programmed"
01441 Failure of the low fuel level controller, a complete check of the G210 device and its wiring is required
01486 The on-board computer informs about the start of the functional diagnostics of the system
01535 Malfunctions of the executive electric motor of the corrector of the right lamp. The on-board computer notes that the signal to the headlight is delayed or the pulse does not reach the optical device. The user needs to test the operation of the V49.
01539 The control unit has registered the lack of headlight adjustment, therefore, the external lighting may not work correctly
01549 Incorrect voltage level, which does not correspond to the normalized parameters, recorded on the parking radar controllers. The reason may be clogged contacts on the sensor elements.
01557 On the Audi 90 Quadro and other versions, this combination appears when there is a malfunction in the limit switch located in the driver's door lock cylinder. A detailed check of the F241 is required.
01559 Malfunction of the lock or sensor located in the driver's door. Detailed diagnostics of wiring and connection quality is required.
01560 The control unit reports malfunctions in the front passenger door. The causes of the problem may lie in the sensors, the central locking control unit, power windows, etc.
01561 Malfunction of the lock or sensor located in the rear left door
01577 The error literally translates as "shutdown due to overheating." The cause of the problem may be a gearbox or engine malfunction, or the clutch system could overheat.
01581 The on-board computer reports an incorrect node recognition. What kind of unit we are talking about is not specified.
01583 Exhaust Gas Leak Detected
01589 Failure or malfunction of the squib of the upper airbag located on the front passenger side
01592 Failure or incorrect functioning of the air flow contamination regulator. A complete check of the G238 and its wiring is required.
01686 Malfunctions of the control module with a delayed deactivation of the fans of the radiator device. The user needs to test the operation of the J138 device, as well as the wiring connected to it.
01699 Malfunction of the electric central locking motor located in the luggage compartment lid. The V53 device is subject to diagnosis.
01738 Breakage of the crash controller of the front airbag located on the driver's side. The user needs to check the operation of the G283 sensor, and also make sure that it is properly connected.
01769 Failure of the front right level controller. It is necessary to test the operation of sensor G289.
01772 Damage to the signal pulse from the pressure controller of the ride height regulator. It is necessary to check and replace, if necessary, the G291 sensor.
01780 Malfunction of the ride height controllers
01794 An incorrect vehicle chassis number has been entered into the engine control module. A possible cause may be a malfunction of the control unit itself.
01826 Malfunction of the steering wheel controller. At terminal number 30, the on-board computer registered an incorrect supply voltage. Detailed wiring diagnostics required.
01841 Malfunctions of the potentiometer of the actuator electric motor of the left temperature adjustment flap. It is necessary to test the operation of the G220 device, and also make sure that it is in good contact with the wiring.
01964 The on-board computer reports problems in the functioning of the control module for adjusting the position of the seats and steering column with memory option. The device marked J136 is subject to diagnosis.
02069 Malfunction of the front controller of the parking system. It is required to check the sensor elements for clogging, as well as contamination of the connector.
02072 Problems in the operation of the control module of the energy consumption control system. The J644 device is subject to detailed diagnostics.
02095 The control unit reports the activation of the component protection system
02111 Malfunction of the electric motor of the power window system.

Possible causes of the problem:

  • failure of a safety element or relay;
  • poor contact of the electric motor with the on-board network, formed as a result of cable damage or clogged contacts;
  • short circuit of the power supply line of the device;
  • malfunction of the electric motor of the window regulators.
02115 On cars C4, A8 and other models, this error code indicates problems in the operation of the central locking drive device.
02214 Malfunction of the emergency air pressure indicator in the tires of the car TPMS
02244 The on-board computer of the car reports a jam of one or more buttons located on the front control panel.

Possible reasons:

  • failure of the key itself, its mechanical damage;
  • breakage of the spring element located under the activation and deactivation button;
  • faulty wiring;
  • mechanical damage to the plastic guide.
02250 Valve activation duration option has failed. Due to the fact that these devices are turned on at the wrong time, there may be malfunctions in the functioning of the engine.
02252 Failure or incorrect operation of the generating device. The cause of the problem may lie both in the structural elements of the unit itself, and in the wear of the drive strap. On the latter, delamination and cracks will appear.

A malfunction in the generator set is accompanied by the following symptoms:

  • the difficulty of starting the engine, regardless of whether the power unit is warmed up or not;
  • dimming with headlights or flickering lighting;
  • an indicator in the form of a battery appeared on the vehicle dashboard;
  • whistle from under the hood, which emits a drive strap;
  • overheating of the belt and destruction of the product;
  • the appearance of a rustling or ringing knock from under the hood;
    electric hum coming from the generator.
02255 Faulty cable for measuring battery voltage. It is necessary to test the circuit connected to the positive terminal of the battery. Possibly incorrect display of parameters about supply voltage.
02256 Literally, this code can be deciphered as "quiescent current". Most likely, the problem is caused by the electrical system.
02259 Faulty operation of the front control panel display. There were problems with display and data output. The user needs to test the operation of the J685 device.
02261 Data carrier malfunction, the problem may lie in the operation of the control unit. First of all, you should test the functionality of the R118 module.
02546 Malfunction of the steering stop mechanism. It is necessary to test the operation of the amplifier's electric motor, sometimes the cause of the problem lies in this device. You should also make sure that all components of the system are intact and free of cracks.
02557 The on-board computer reports an incorrect mounting position of the steering wheel angle controller
02596 Significant wear of the rear brake pads has been detected by the control unit
02615 A message asking you to lock the gas tank cap, it may not be securely locked
02643 Incorrect voltage level recorded on the supply line of the pressure sensor
02645 On Audi A4, C6, B6 and other models, this code indicates a malfunction in the ride height control valve. It is necessary to test the operation of the sensor and the quality of its connection.
02646 Incorrect signal received by the control unit from the ride height sensor. The error is accompanied by the appearance of the inscription "Allroad".
02895 Damage to the power line of the left module of LED fluorescent lamps and parking lights.

Possible reasons:

  • wiring malfunction (open circuit, short circuit to positive or "ground");
  • clogging of the power connector for optical elements;
  • melting of contacts in the block as a result of overvoltage in the electrical network;
  • failure of one of the safety devices or relays.
02914 Failure or malfunction of the first luggage compartment lid controller. The latter is locked. A detailed check of the G525 sensor is required.
02988 ON Audi B7 and other versions, this code denotes the activation of the system for correcting optical devices for movement in conditions of left-hand or right-hand traffic
03041 Literally, this code translates as "power management activated".

Possible causes of the problem:

  • battery malfunction (discharge, normal wear and tear, electrolyte leakage, long-term storage at low temperatures);
  • failure of the generator set or one of its structural elements (brushes, voltage regulator relay);
  • poor connection of the generator to the mains due to oxidation or corrosion on the connector;
  • the use of additional electrical equipment, the voltage of which does not correspond to the nominal;
  • problems in the operation of the anti-theft system.
03157 Limitation of functionality as a result of communication failure. The cause of the problem may be damage to the wires of the CH digital interface.
03207 Often this error appears after installing the ADS module without buttons.
03220 Coolant shut-off valve malfunction. Due to this malfunction, the refrigerant can only circulate in a small circle of the cooling system. As a result, the power unit may overheat.
04407 Re-enrichment of the air-fuel mixture in the first row of engine cylinders when the power unit is idling
04409 Problems in adapting the air-fuel mixture in the second row of cylinders
05495 Failure or malfunction of the valve of the right support of the power unit
05715 Failure or incorrect functioning of the anti-lock braking system control module
06931 Error dump control unit memory, you need to reflash the module
12555 The pressure in the fuel line, in particular in the low circuit, does not correspond to the standardized indicators
13128 Malfunctions recorded during the transmission of a signal to the control module by the turbocharger. The user needs to test the operation of the J724 element.
13272 Malfunction in the catalysis system, the cause should be looked for in the first bank of the motor
14846 Malfunction of the turbocharger guide vane position controller
15005 Breakage or malfunction of the fuel metering valve
15462 Problems in the operation of the bypass valve control circuit. It is necessary to check the operation of the sensor and its wiring.
15470 Malfunctions in the engine cooling system, engine overheating is possible. The cause of the problem may be the lack of refrigerant circulation through the lines.

Possible causes of the problem:

  • failure of the thermostat or damage to its contacts;
  • breakage of the coolant temperature sensor;
    the use of low-quality or worn-out consumables;
  • clogging of pipes with antifreeze sediments.
16346 General malfunction code of the control unit, possible causes of the malfunction:
  • poor-quality connection of the microprocessor module (oxidation of contacts, blockage of the block, arbitrary disconnection);
  • short circuit of one of the wires to ground or battery, a wire break is also possible;
  • malfunction of the internal memory module;
  • malfunction of the software component of the module.
16396 The control module recorded a malfunction of the valve timing system to the early side. The problem is observed in the first row of cylinders and the normalized parameter at shear is not reached. A detailed check of all components is required, including sensors and the control unit.
16514 Failure of the power line supplying the first oxygen regulator located in the first row of engine cylinders
16534 Failure or damage to the power line of the first oxygen controller located in the second row of cylinders
16967 Throttle valve malfunction. The cause of the problem may be a malfunction of the mechanism or the control unit of the device, you also need to check the sensor and its wiring.
16985 Failure of the engine control module
16989 Control unit malfunctions. To fix the device, you must first disconnect it from the power supply and clean the connectors with a brush to remove possible dust and traces of moisture. You also need to dry the module if there is a suspicion that its malfunction is due to moisture getting inside the device on the board. If the cause of the problem is a software malfunction, then you will have to contact a specialist to reflash the device.
17072 Broken or damaged wiring supplying the main relay. It is necessary to check the operation of the J271 device.
17087 Damage to the power line of the brake light controller F. The problem may not be in the wiring, but in the fuse or relay of the optical devices.
17101 Lack of pulses coming to the control unit from the output shaft speed regulator. The user will have to check in detail the operation of the G182 sensor.
17105 Invalid pulse from the output speed controller. This refers to the sensor G195 located on the gearbox.
17119 Incorrect gear ratio when activating fifth speed. A detailed check of the transmission is required, including the sensors and the unit control unit.
17521 The control unit has registered too high resistance on the power line of the first lambda probe located in row 1
17522 Increased internal resistance on the supply line of the second oxygen controller. It is necessary to check the lambda probe located in the first row.
17535 Re-enrichment of the fuel-air mixture during adaptation, the problem was fixed in the first row of the engine
17536 The microprocessor module reports an over-depletion of the air-fuel mixture in the engine under high load. The cause of the problem should be found in the first row of the engine.
17537 Code indicating the depletion of the air-fuel mixture formed in the second row of cylinders
17545 Re-enrichment of the combustible mixture recorded in the first row of cylinders. The problem is fixed by the control unit when the power unit is idling.
17547 Re-enrichment of the air-fuel mixture when driving at idle speed. The problem is reported in the second bank of the engine.
17579 Invalid impulse from the second throttle actuator steering angle controller. It is necessary to dismantle and check the operation of the G188 device.
17698 Increased signal level from the coolant temperature controller located at the outlet of the radiator motor cooling device. A detailed check of the G83 sensor is required.
17700 The on-board computer registered a malfunction in the operation of the thermostat for the electronic control of the engine cooling system. A malfunction was detected in the operation of the F-265 device. First of all, it is recommended to check the operation of the line for a short circuit to positive.
17701 Short circuit to the battery in the power supply circuit of the electronic control thermostat of the power unit cooling system. The user needs to test the operation of the F265 device.
17705 Decrease in the pressure level registered on the lines connecting the turbocharged unit and the throttle valve body
17743 Malfunction of the torque control system. The control unit reports that the control limit has been exceeded.
17746 Short to battery in the camshaft position controller power supply circuit. The cause of the problem should be found in the first row. The fault may be a broken wiring.
17748 This code on the Audi A4 appears when the signals from the camshaft and crankshaft position controllers do not match. The cause of the problem should be looked for in the connection of the G40 and G28 regulators.
17755 Inconsistency of pulses coming from the camshaft position controller located in the second row, as well as the crankshaft sensor. It is necessary to check in detail the operation of both sensors.
17763 Open or damaged wiring on the ignition control line in the first cylinder. It is necessary to check the cable connecting the ignition coil to the distributor. The cause of the problem may be poor wire contact or damaged or clogged pins on the cable.
17789 Detection of misfire of the fuel-air mixture in the fifteenth cylinder of the power unit
17800 Broken cable or short to battery in the camshaft sensor power supply circuit. The user needs to look for the problem in the controller located in the second row of cylinders. Device G163 is subject to diagnosis.
17813 On Audi 25 TDI, A4 20, A6 28 and other versions, this code indicates a malfunction in the functioning of the second EGR control valve. A detailed check of the N213 sensor is required for damage to the contact elements.
17819 The on-board computer registered a reduced throughput in the second row of cylinders of the secondary air supply system
17830 On the Audi A6 USP and other models, this code appears when there is a short to positive in the power supply circuit of the secondary air control valve. A detailed check of the N112 device is required.
17831 On cars 2002, 2003 and other years of production, this code indicates a reduced throughput in the operation of the secondary air supply system. The problem is fixed in the first row of cylinders.
17861 The on-board computer registered a short circuit to the battery or an open circuit in the wiring supplying the temperature controller of the exhaust gas system. When such an error occurs, the user needs to test the operation of the G235 sensor in detail.
17887 Mechanical malfunction in the vacuum system of the brake booster
17915 The control unit reports on reaching the lower limit in the operation of the idle speed system. The problem may be a programmable value, so the user should also check the operation of the ECM.
17925 Fault or damage to the power line connected to the main relay J271
17927 The on-board computer reports a malfunction in the valve timing sensor. The cause of the problem should be found in the first row of cylinders.
17931 Invalid impulse from the airbag control module, possibly cable damage or malfunction of the unit itself
17939 Breakage or damage to the power supply line of the valve timing sensor
17950 Invalid pulse from throttle actuator steering angle controller power cable. It is necessary to check the operation of the sensor and the wiring connected to the regulator marked G187.
17953 Malfunction of the throttle control system
17956 Damage or open circuit in the wiring supplying the boost pressure limiting solenoid valve. It is necessary to test the operation of the cable, as well as devices marked N75.
17964 Malfunction of the boost pressure sensor. The on-board computer notes that the readings from the controller are out of range. The sensor values ​​are too low.
17967 Throttle control module basic setting error. The on-board computer indicates a problem with the J338.
17978 The microprocessor module is blocked, the engine may malfunction and the inability to start
17981 Damage to the power supply wiring to the valve of the left electric hydraulic support of the power unit. It is necessary to check the operation of the N144 sensor.
18010 The supply voltage level at terminal 30 of the ignition switch is too low. This could be due to the battery or generator set.
18034 Malfunction in the CAN data bus. The control unit does not receive messages from the control module of the transmission unit.
18043 The on-board computer records the impossibility of reading data from the fault memory of the air conditioning control module. Sometimes the cause of the problem is related to a malfunction of the air conditioning compressor. It is also necessary to check the integrity of the elements of the climate control system.
18057 The control unit has registered the absence of messages from the ABS control module. Look for the problem in the data bus of the drive unit.
18062 The on-board computer was unable to read data from the dashboard malfunction memory. It is necessary to test the connection quality of the combination and the microprocessor itself.
18080 Damage to the wiring or short circuit of the cable supplying the radiator fan to ground
18107 Problems in the operation of the digital CAN data bus. The on-board computer reports the absence of messages from the steering column control module. The cause of the problem may be faulty wiring or malfunctioning sensors.
18149 The on-board computer reports that the upper limit of adaptation of the clutch pressure has been reached
18150 Malfunction of the clutch closing torque adaptation system. The control unit notes that during the operation of the node, the upper adaptation limit has been reached. Long-term operation in this mode may lead to overheating of the device.
18151 Failure of the clutch slip indicator, a critically high signal is sent from the device to the control module. Detailed diagnostics of the device for wear is required. The problem may be with the variator control module.
18158 The control unit reports a critically low voltage level in the vehicle's power supply system. It is necessary to test the main elements responsible for the correct operation of the on-board network - the battery and the generator.
18161 Incorrect impulse from the Tiptronic transmission switch. The user needs to diagnose in detail the operation of the F189 device.
18163 Problems in the operation of the Tiptronic transmission unit. Difficulties in operation are associated with the downshift of the F189. The cause of the problem, according to the recommendations of the on-board computer, should be sought in a break in the wiring or a short circuit of the cable to the positive terminal.
18165 Broken power line. It is necessary to check the wires connected to the generator set, as well as the battery.
18258 Fault on the data bus of the drive unit. The manager of the model does not report the operation of the power unit.
18259 Malfunction in the CAN data bus. The on-board computer reports the absence of data from the anti-lock braking system control module. The device may be transmitting an incorrect signal.
18265 The ECM is receiving an invalid load signal, the device is malfunctioning. It is necessary to check in detail the operation of the unit and, if necessary, reflash it.
18339 The on-board computer registered a malfunction in the operation of the radiator fan control module. A detailed check of J293 is required.
18404 On the Audi A8 D2, 80 B4, A2, C7 other models, this code indicates too high friction, which does not correspond to the normalized indicators, in the operation of the engine shafts. This indicates that the load at idle speed on the power unit is quite serious.
18967 The microprocessor device registered a short circuit to the positive terminal of the power supply line of the ignition switch. With such a problem, it may be difficult to start the engine.
65535 General code indicating a malfunction in the control module.

Possible causes of the problem:

  • poor-quality connection of the device to the car's electrical network;
  • damage to one of the contacts on the connector;
  • a short circuit in the wiring that led to incorrect readings;
  • mechanical damage to the module as a result of vibration during movement;
    software malfunction of the engine control unit;
  • moisture penetration into the device.

Audi error codes are considered for the following models:

How to diagnose the error?

Good to know

There are two options for diagnosing Audi cars - using a computer (more accurate), and testing using an LED lamp. In the second case, diagnostics are performed using a special connector.

Depending on the model and year of manufacture, the location of the diagnostic pads may be different:

  • above the fuel pump relay;
  • in a special niche for the front passenger's feet;
  • under the center console on the passenger side or in the fuse module on the left side of the engine compartment, next to the engine panel;
  • under a protective plastic cover above the pedals in a special recess for the driver's feet.

The self-diagnosis procedure is performed as follows:

  1. The power unit of the machine starts up and warms up to operating temperatures. It should be borne in mind that the error codes of oxygen sensors (lambda probes) can be read only after a long trip of at least 10 minutes.
  2. The engine stops and the ignition is activated. If the power unit initially failed to start, then you need to turn the crankshaft for 6 seconds and leave the ignition system on.
  3. Using a safety device, the test contacts are closed over the fuel pump relay for at least five seconds. Then the element must be disconnected, which will cause the fault LED to blink.
  4. The code reading procedure will begin. One series of flashes indicates the first symbol of the combination, the second series - on the second, etc. In each cycle, several flashes lasting 1-2 seconds with a short interval of 2.5 m.

Diagrams for closing the contact elements on the diagnostic block

How do I reset the error?

There are several options for deleting error codes from the memory of the control unit:

  1. Using VAG-COM software. The utility has a special section that allows you to delete combinations of faults after diagnostics.
  2. Disconnecting the battery terminals from the device. It is necessary to disconnect the clamps for a few minutes, and then reconnect them. With such manipulations, some settings may be reset, for example, time or car radio. However, it must be borne in mind that in this way not all errors are deleted from the memory of the on-board computer, but only the least critical - serious codes will remain in the control unit.
  3. Another option is to delete error codes using the on-board computer. On the instrument panel display, select the "Pressure monitoring" submenu item using the combination buttons. If the on-board computer is Russified, then the "Pressure control" menu is selected. In the next window, you must specify the "Store curr monitoring" subsection. The combinations of faults must then be deleted from the microprocessor memory.
  4. You can also use the following algorithm to delete (may not work on all Audi models). First, the ignition is activated, after which the button located next to the speedometer is pressed or pulled. The message "Service" will appear on the dashboard. The button must be held in this state until the message “Service in ——km——” appears on the screen.

Video: deleting an error from the memory of the control unit

Channel "the unexpected" in its video showed the process of erasing combinations of faults from the control module of an Audi car.

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

Approximate prices for the provision of diagnostic services using computers or scanners are shown in the table:

Video: DIY error codes removal

The AkerMehanik channel in its video described in detail the procedure for deleting codes from the memory of the on-board computer of an Audi car using the Vasya Diagnost software version 11.11.2.

Fans of downloading hacked games and programs from torrents, called RePack "s, may encounter the error" Unarc.dll return error code - 6. "By the way, the number in this message can be absolutely any, from 1 to 12, this does not change the essence. the cause is always the same.This article will talk about how to fix this error in order to make a normal installation of the downloaded application.

What is the error?

Before discussing how to fix the error "Unarc.dll return error code - 6", it is worth understanding the reason for its appearance. And it's pretty simple. An error occurs during unpacking of the archive, due to which the process cannot be completed. It can be caused by various reasons, but most often the fault is the lack of the necessary archiver on the computer or its version. This phenomenon can be easily corrected, which will be discussed below, but there are also so-called critical errors that cannot be corrected.

Critical error

It is worth immediately identifying a critical error. If you have it, then you should see a line in the message, which contains the words filed CRC check. Unfortunately, it cannot be corrected in any way. That is, you will not be able to install a game or program by performing manipulations on the computer. However, there is one way that can help. He comes first in the article, so if you find that you have a critical error, please refer to him.

Not a fatal error

But along with a critical error, there is also a non-critical one, and, fortunately, it happens more often than the first. To understand that this is it, you need to look at the line that comes after "Unarc.dll return error code - 6", there should be an inscription: file read operation failed. If you see it, it means that one of the following methods will help you fix it. But you should also pay attention to the fact that they must be performed in the order of the specified queue - this will increase the chance of success. And some of them only work in conjunction with others, so carefully read the instructions and try not to miss anything.

Remedy # 1: when the archive is damaged

So, it's time to start a story about how to fix the "Unarc.dll return error code - 6" error. Now I will tell you how to fix the error if it is associated with a damaged archive. By the way, it is this method that can help when a critical error occurs.

The fact is that in some cases you can download an archive that is "broken". Moreover, it can be damaged both during the boot itself, and it can be from the very beginning. In this case, you will not be able to install the game or the program, but only downloading a new RePack will help.

Remedy # 2: installing archivers

It has already been said above that the more common reason for the error is the lack of the necessary archiver that could work with the format that is included in the RePack itself. The fact is that many authors making these archives use "exotic" archiving methods to to reduce their weight as much as possible. Solution "Unarc.dll returned error code - 6" in this case is quite simple. You need to download and install on your computer the latest versions of two archivers: 7-Zip and WinRar. After installing them, the error should disappear.

Remedy number 3: disabling antivirus and other protection elements

Although the presented error occurs due to the lack of the necessary archivers, this is not the only reason. And installing third-party programs may not always help. Sometimes antivirus or other Windows protection tools are to blame. Now we will tell you how to fix "Unarc.dll return error code - 6" if the antivirus is guilty.

If you have installed an antivirus from a third-party manufacturer, then check on the website how to disable it. If you are using Windows Defender, then enter the control panel, go to the appropriate section and disable protection in the settings. You can also turn off the firewall in the control panel - it can also cause an error. By the way, after installing the game or program, the protection tools can be turned back on.

Remedy number 4: obtaining rights

You have disabled antivirus, but what to do with "Unarc.dll return error code - 6" if this message still appears. Now we will look at a fairly simple method to fix this problem. As mentioned at the beginning of the article, some methods are best paired with others, this is just such a case - use it with the previous one.

So, disable system protections and try to run the installer with administrator rights. That is, right-click on it and click on "Run as administrator".

Remedy # 5: increasing the swap volume

Unfortunately, the solution to the problem is not always as simple as in the previous case. The error may be due to the small size of the paging file. Fortunately, you can increase it at any time. Now let's figure out how to do this.

    Open the system properties by right-clicking on the "My Computer" shortcut and selecting "Properties".

    In the left pane, click Advanced System Settings.

    In the window that appears, go to the "Advanced" section.

    Enter Performance Options.

    Go to the "Advanced" section.

    Click on "Change".

Now, in the window that appears, you need to check the first item, select the disk with the paging file and specify the maximum size equal to your RAM, and then save the changes.

Remedy number 6: increasing RAM

Unfortunately, the solution of the error "Unarc.dll return error code - 6" may simply not be feasible using the tools of the operating system itself. Sometimes it is necessary to intervene in the system unit. The fact is that for correct unpacking, there may not be enough RAM, in this case, only its increase will help. But it is advised to acquire this type of memory only if all other methods have not helped you.

Remedy # 7: replacing library files

Finally, you can try to replace the dynamic libraries themselves, which are used during the installation process. It is necessary to change ISDone together with Unarc. This is done as easy as shelling pears:

    Go to the Internet and download the libraries of the same name to your computer.

    Move the downloaded files to the path C: \ Windows \ System32 or C: \ Windows \ SysWOW64, depending on the bitness of your system.

    Press Win + R.

    Run regsvr32 isdone.dll and regsvr32 unarc.dll.

Perhaps, after these manipulations, the problem will disappear.

Surely, many fans of modern computer games, when installing them on a computer, faced a problem when the installation was about to end, and instead of a successful completion, the system displays a message like "Unarc.dll returned error code 6". What is the reason and how to fix this situation, now it will be shown on the simplest examples.

Failure "Unarc.dll returned error code 6": what does it mean and what is the reason?

Before you start troubleshooting this type of error, you need to understand what causes it. It is believed that in most cases they occur only when downloading from the Internet and using unofficial installation assemblies, which are commonly called Re-Pack.

Unfortunately, most often these are not "native" distributions of games, but custom sets, in which some important components may be missing or damaged. In addition, as a rule, they are presented in the form of archives, with which many problems can also arise.

A decompressor program and two dynamic libraries - ISDone.dll and Unarc.dll are responsible for installing games. Error code 6 with different types of failure descriptions may indicate the most common causes of problems, among which the following can be distinguished:

  • damage to the downloaded archive with violation of integrity;
  • creating an archive with a higher version of the archiver than the one used for unpacking;
  • virus infection of the contents of the archive;
  • crashes in dynamic components.

Errors of installation distribution components when installing games

The most unpleasant situation for a gamer is the appearance of an error at the final stage of the installation of the game. The installation progress may already be 95-99% complete, but it is at this time that a critical failure occurs.

The reason for this is banally simple. The Unarc.dll component generates error 6 when it is impossible to unpack and install the last missing components. As a rule, these are archives, the content of which is extracted last. In official distributions, there are no problems only because the set has its own decompressor, the files are presented in the form of self-extracting archives, or during the unpacking process the installer refers to the archiver installed in the system, which corresponds to the modification of the program with which the archive was originally created.

At the same time, in the description you can often find the phrases “Unarc.dll returned error code 6. Error. File read operation failed "or" Decompression failed ". The first description indicates that the installer cannot read (recognize) the file, the second indicates that the archiver cannot decompress the contents.

Unarc.dll returned error code 6: how to fix the crash in the simplest way

The first and easiest way to troubleshoot a corrupted archive is to try to download it to your computer again. It may well be that he just did not load.

If the repeated download does not give a positive result, and the archiver in the error message mentions a failure to read the data, you should look for an intact (whole) archive on another resource and download it to your computer.

Elimination of problems related to archivers

On the other hand, when the installer accesses the archiver installed in the system, or the user extracts the contents of the archive during the installation process on his own, the situation with the appearance of a warning that Unarc.dll returned error code 6 can also occur.

The most common problem is that the version of the compression program is lower than the one with which the archive was packed. The simplest example is an attempt to unpack archives created using WinRAR of the fifth modification, a similar application, but version 4. The way out of this situation is to install the required version of the archiver or replace it with another equivalent (WinZIP, 7-Zip, etc.) ...

By the way, when it comes to packing the archive with the 7-Zip program, sometimes non-standard methods of enhanced compression can be used, which WinZIP and WinRAR do not support. In this case, the extraction of the content must be done by the original application.

Virus infection problems

The viral impact cannot be underestimated either. Both the archive itself and the dynamic libraries involved in the installation of the game can be infected.

In the first case, before unpacking, you should check the desired archive for viruses, in the second, perform a comprehensive scan of the entire computer system, activating in-depth analysis.

Fix crashes of dynamic components involved in the installation process

Finally, the message "Unarc.dll returned error code 6" may also appear in the event of a failure of the dynamic components themselves, due to a critical impact on the operating system (incorrect shutdown, power surges, system component errors, etc.).

There is also a solution for such cases. Since it is impossible to manually fix such failures (even when integrating original libraries copied from another computer with a similar OS or downloaded from the Internet into the system), they should be restored. We do not consider rolling back the system, because the components could have been damaged for a long time, and there is no checkpoint for recovery.

You can check the system with the sfc scannow command, which is entered in the appropriate console. The easiest way is to use special utilities like DLL Suite or Microsoft Fix It !, which will do all the operations automatically without user intervention.

Conclusion

In conclusion of the topic, it remains to add that the most frequent failures are precisely errors in archived data, so it is better not to use all sorts of repackages, but to install your favorite or favorite games using official distributions. Only in this case it is possible to guarantee that the installation will be successful and there will be no problems during the installation process.

Just in case, the archiving programs should also be kept up to date, because the new versions, with the help of which the archives are created, imply more powerful compression using updated algorithms, and outdated modifications may not support such technologies.

Finally, we did not consider here the issues related to the damage to the RAM strips, and any other malfunctions of a physical nature.

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