Audi logo

AUDI Car Fault Codes DTC

AUDI Car Fault Codes DTC - A3, A4, B5, B8, A5, A6 C5, C6, A8, Q5, Q7, 80, 100.

 

Description of AUDI common errors

 

012410 Malfunction in the air intake system

B100A 1B On the Audi A4 B8 and other models, code B100A1B appears when there is a malfunction in the airbag side airbag side loop located on the front passenger side

B1006 1B Error B10061B - Airbag or seat belt malfunction. The problem is either the sensors of these devices or the wiring.

B2000 Code B200000 appears when a faulty engine control unit. The problem is usually solved by flashing the device.

P17D8 Clutch overheating. This error is accompanied by a limitation of engine torque. The cause of the problem may be a malfunction of the clutch disc due to its natural wear. When reading an error, it may be output in P17D800 format.

P0046 Loss of performance in the operation of a turbocharged unit

P0401 On Audi A4 B6, 8E and other versions, this code indicates the reduced throughput recorded in the exhaust gas recirculation system

P0403 The control unit has detected a malfunction in the exhaust gas recirculation valve

P0420, (16804) Error P0420 is associated with a decrease in the efficiency of the catalyst system registered in the first row of cylinders

P0421 For cars 2012 and other years of production, this code reports a low efficiency of the front catalyst, located in the front row

P0431 Low efficiency of the front catalyst assembly. The problem is observed in the second row of cylinders.

P0442, (16826) The on-board computer detected a minor leak in the tank ventilation system

P0455 If error P0455, the engine control unit reports the detection of a serious leak recorded in the gas tank ventilation system

P100E, (004110) Incorrect torque to protect the turbocharger

P1296 Malfunctions in the cooling system

P1479 This error indicates a malfunction in the vacuum system of the brake booster. In some cases, the cause of the problem is a malfunction of the brake lining, as well as the lack of fluid in the expansion tank under the hood. You should also check the wear of the pads. In case of such a problem, an indicator with the inscription “Bremse” is lit on the dashboard

P1570 Code P1570 reports that the control unit of the power unit is blocked. As a result of blocking, the operation of some systems may be disrupted, sometimes starting the engine is impossible.

P2181 General code indicating problems with the cooling system, possible causes of the problem:

- thermostat malfunction;

- malfunctions of the engine control unit or cooling system;

- malfunctions of the coolant temperature controller;

- the use of low-quality or spent antifreeze service life, which led to the formation of precipitation;

- clogging of pipes and pipes of the cooling system;

- deterioration of hoses, loosening of clamps or damage to pipelines that led to leakage of consumables.

P2263 The control unit has detected a charge pressure control error

P2279 Code P2279 or P227900 appears when there is a leak in the intake system. Air may leak through mechanical damage to the line or pipe. With error P227900, it is also necessary to check the quality of the hose connections and the degree of tightening of the clamps.

P2681 Error in the mechanism for controlling the bypass valve of the coolant. The power unit may overheat. It is necessary to test the operation of the thermostat, since with such a problem, violations in the operation of the engine cooling circles are possible.

AUDI Fuel system malfunctions

 

P310B (012555) If on a car in 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 range. The combination can be displayed in the form of code 012555.

Possible causes of the problem:

- failure or malfunction of the fuel pump as a result of normal wear and tear;

- clogged mesh in the filter element;

- incorrect readings sent by the low-pressure fuel controller.

P0087 (P008700) The error code may be displayed as a combination of P008700. Literally, this malfunction stands for "lowering the pressure level in the fuel line."

The error is accompanied by the following symptoms:

- increase in fuel consumption;

- difficulties when starting the power unit “to the cold” up to a complete failure to start;

- the vehicle goes into emergency operation with the impossibility of increasing the speed of more than three thousand;

- when starting the power unit, the speed is floating, sometimes after starting the engine immediately stops.

Possible causes of the problem:

- Malfunction of the fuel pump located in the tank. Perhaps the problem is the poor contact of the device with the wiring caused by oxidation or the formation of corrosion on the contacts of the connector.

- Failure of the fuel pressure controller. Perhaps the problem is also due to poor sensor contact with the network.

- Incorrect fuel pressure valve adjustment. The main symptom of such a problem is the long start of the engine with prolonged cranking of the crankshaft with a starter. Possible damage to the fuel lines or the weakening of one of the clamps.

- Failure of the fuel injector. It is necessary to visually check the operation of these elements, as well as test them with a multimeter.

- Depreciation of the push rod located in the high pressure fuel pump. Replacement of a pusher should be carried out not less often, than each 50 thousand km of run.

P0088 Code P008800 indicates increased pressure in the fuel rail. Perhaps the problem is the valve freezing, which led to a malfunction of the fuel return lines. The reason may be a clogged fuel filter.

P0441, 16825, (001089) Code P0441 indicates a decrease in throughput in the operation of the fuel tank ventilation system (malfunction in the operation of the emission control system). Check the lines for clogging.

P1250 If P1250 error appears on the tidy, this is due to a critically low fuel level in the gas tank. Sometimes the problem is the short circuit of the fuel volume sensor. If the fuel level is critical, this can be determined by the instrument cluster.

P2400 Malfunction in the gas tank ventilation system. The control unit reports that the impulse to the fuel leak check pump device is interrupted. The problem may be cable damage or short circuit of contact elements.

P2838 Code 2838 reports an incorrect pressure level recorded in the fuel rail.

Possible causes of the malfunction:

- breakage or malfunction of the pressure sensor, its disconnection or oxidation of contacts, damage to the wiring;

- violation of the tightness of the fuel lines associated with damage to the hoses;

loosening of clamps or bolts connecting the nozzles with fuel;

- damage to the gas tank and fuel leak from the system;

- malfunctions of the control unit;

- fuel pump malfunction.


AUDI Particulate filter malfunctions

 

0B38 Malfunction in the control light indicator of the particulate filter. Because of this, device malfunction information may not appear on the dashboard display. The user needs to test the operation of the bulb under the marking K231.

P1465 The control unit detected a short circuit to the positive terminal in the electrical circuit of the fuel additive pump for the operation of the particulate filter. To resolve the problem, a detailed diagnosis of the V135 device is performed.

P1466 The problem is similar, only with a short to ground. The user is advised to verify the integrity of the wiring, as the error may be due to its damage.

P2002 Malfunction of a particulate filter installed in the first row of cylinders

P2452, P2453 Malfunctions in the particulate filter or differential pressure controller. The cause of the problem may be a malfunction in the power line or an incorrect pulse that is transmitted through it.

P3070 Failure of the additive pumping device for the functioning of the particulate filter element

P3071 The on-board computer detected that the container with the additive for the particulate filter was empty

P3083 Damage to the power supply line to the additive reservoir controller for the particulate filter device. The user needs to test in detail the operation of the element marked G504.

 

AUDI Errors in the formation of a combustible mixture

 

P0171 Error P017100 or 0171 denotes a lean fuel mixture, fixed when forming in the first row of engine cylinders

P0172 Re-enrichment of the air-fuel mixture in the front row of the engine

P0174 The engine control module reports the depletion of the air-fuel mixture when it is formed in the second row of cylinders

P0175 Enriched mixture recorded in the second row of engine cylinders

P0263 The control unit reports a deviation in the amount of fuel injected in the first cylinder of the engine. The problem may affect the formation of the air-fuel mixture.

P0300, (16684) This error occurs when misfire is detected in one of the engine cylinders. The malfunction can be displayed in the form of code P030000.

P0301 The control unit has detected a misfire in the first engine cylinder.

Possible causes of the problem:

- Malfunctions of the fuel supply system, as well as the wrong composition of the air-fuel mixture. As a result of the impurities that are contained in the fuel, the nozzles could clog and function incorrectly under a certain operating mode of the power unit or constantly. Problems can be accompanied by “tripling” of the engine under high load at idle, after warming up or on a cold engine.

- Malfunctions in the operation of the ignition system, high-voltage wires and other components. - Clogged candles, the formation of soot on them, as well as breakage or poor contact of the coil are the most common causes.

- A drop in the compression level or its scatter in different engine cylinders. This can happen when the piston rings are worn or broken, or they are buried. The problem may occur in case of malfunctioning of the gas distribution mechanism.

P0302, (16686) On Audi A4 B5 cars and other versions, error code P0302 is associated with the calculation of the misfire of the air-fuel mixture recorded in the second cylinder

P0303 Engine control unit misfire detected in the third cylinder of the power unit

P0304 The combination P0304 appears when a misfire is detected in the fourth cylinder of the power unit

P0305 The engine control unit has detected a misfire in the fifth cylinder of the engine

P0507, (16891) Code P0507 reports that the speed level of the idle adjustment system is significantly higher than normalized values

P1093 Malfunction in the system for determining the parameters of the combustible mixture. The cause of the problem should be sought in the front row of the engine.

P1126 Error 1126 occurs when the depletion of the air-fuel mixture formed in the second row of cylinders. The problem is with the air supply; there may be an oversupply or lack of air. It is necessary to test the oxygen controller, as well as the mass air flow sensor.

P1127 Re-enrichment of fuel in the system during adaptation of 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 revs above idle.

P1128 The on-board computer reports a depletion of the air-fuel mixture during operation of the power unit under load. This means that the engine speed must be higher than idle. The problem should be sought in the first row of cylinders.

P1136 Code P1136 appears when the air-fuel mixture is overdepleted in the first row of engine cylinders. The problem appears when driving at idle.

P1137 The control unit reports a re-enrichment of the air-fuel mixture in the front row of the engine. The problem is registered when the power unit is idling.

P1139 An on-board computer recorded re-enrichment of the air-fuel mixture during engine idle operation. The cause of the problem should be sought in the operation of the second row of cylinders.

AUDI Engine malfunction

 

P0010 (000016) Error 0010 - malfunctions of the valve timing, which led to misfire in the first row of engine cylinders

P000A Code P000A00 is the result of malfunctions in the variable valve timing system

P10A4 Malfunction in the inlet air control flap. To resolve the problem, it is recommended to dismantle and disassemble the elements of the air flow supply system, then clean them and remove traces of oil deposits. You should also disassemble the valve and clean it, check the operation of the electric motor.

P130A Code P130A00 appears in the event of a malfunction in the engine shut-off system. Error P130A00 may be accompanied by malfunctions in the engine.

P164B Error code P164B00 appears when the engine fluid pressure sensor is not working properly. With a P164B00 error, it is necessary to check not only the controller, but also the quality of the consumable. The malfunction can be accompanied by the appearance of an icon on the dashboard in the form of an oiler, as well as the inscription "oldruck".

P164D Code can be displayed as a combination of P164D00. This error indicates an incorrect engine oil pressure. The user needs to check the operation of the monitoring sensor of this parameter. The cause of the malfunction may be the use of a consumable and filter that has been used up for its useful life. In practice, the error often disappears after replacing the fluid and filter.

P0011, (16395) Codes P0011 or P001100 appear during incorrect operation of the valve shift system in the lateral direction. The control unit notes that the nominal value of the parameters in the first row of cylinders has not been reached.

P0012 The on-board computer detected malfunctions in the early phase shift system. The problem is fixed in the first row of cylinders and noted, then the nominal value during the shift is not reached. A detailed check of all components, including sensors and the control unit, is required.

P0014 The literal translation of this DTC is “the timing device of the variable valve timing system”. The problem must be sought in the work of the right rear issue in the first bank. The control unit notes that the reason is the opening angle is too early.

P0021 The on-board computer notes that the nominal lateral valve timing has not been reached. The cause of the problem should be sought in the operation of the sensors or cylinders.

P0024 The control unit reports that the nominal value when shifting the valve timing to the earlier side has not been reached. The cause of the problem may be in the second row, in the camshaft. It is necessary to visually check the pulley, there may be signs of wear in the form of broken teeth.

P0068, (000104) Code P0068 means incorrect air pressure at the inlet, false mass readings are possible. The problem may be due to air flow, incorrect throttle angle, or malfunction of the flow meter. A detailed check of the mass air flow sensor for clogging is required - if the regulator is clogged, it must be cleaned.

P0125 Error 0125 on Audi TDI BAU and other versions of the car appears in case of low refrigerant temperature, necessary for lambda control. 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".

P0266 On-board computer recorded the deviation of the volume of injected fuel on the second cylinder of the engine

P0269 Deviation of the amount of fuel injected on the third cylinder. A possible reason may be the nozzles, so you need to check their integrity and performance.

P0272 Deviation of the volume of injected fuel in the fourth cylinder of the engine

P0278 Deviation of the amount of fuel injected 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 should be sought in the second row of cylinders. The error can affect the functioning of the power unit as a whole.

P0411, (16795) Codes P0411 or 0411 appear when there is a malfunction in the secondary air supply system. If this error appears on the panel, the user must look for a reason for the reduction in bandwidth.

P0491 Code P0491 or P049100 appears when the throughput registered in the first row of the secondary air supply system decreases

P1130 Error 1130 is a consequence of the depletion of the combustible mixture during engine operation under load. The cause of the problem should be sought in the second row of the engine cylinders.

P1262 Incorrect operation of the pump injector valve installed in the first engine cylinder. The on-board computer notes that the problem is related to the output of the signal from the control range, the impulse is below the critical limit. Error 1262 requires a detailed check of the N240 device.

P1297 Code 1297 indicates a decrease in pressure in the pipe between the throttle body and turbine

P1335 Malfunction of the torque control system. The control unit reports that the control limit has been exceeded.

P1423 The microprocessor module has registered a reduced throughput in the operation of the secondary air supply system

P1483 Reduced throughput in the operation of the secondary air supply system, a fault should be sought in the front row

P1519 Failure in the operation of the valve timing control device The cause of the problem should be sought in the first row of the engine cylinders.

P1545 Malfunction of the throttle control system

P1579 The on-board computer notes that adaptation has not been initiated in the operation of the throttle control module. Engine malfunctions are possible, including reduced traction and increased fuel consumption. Verification of J338 device required.

P2004 Code 2004 is fixed if the intake flaps of the first row of cylinders do not close for some reason

P2006 Code 2006 indicates that the intake flaps located in the first row of cylinders do not open for some reason

P2007 Error 2007 on B7 cars and other models is due to a malfunction in the intake flaps. Elements located in the second row of cylinders do not open or do not open to the end.

P2070, (008304) Malfunctions in the intake manifold with variable geometry. The control unit reports that the damper is stuck in the open position and does not close. A possible cause may be a valve in the system that is out of order and needs to be replaced.

P2177 The on-board computer detects the formation of a lean air-fuel mixture when driving at high speeds

P2187 If the code P218700 appears on the display in A5, B8 or another model, this indicates a depletion of the combustible mixture when idling. The cause of the problem should be sought in the first row of cylinders; the exact number is not indicated.

P2196 The control module received a signal from the first oxygen regulator, installed in row 1, about the re-enrichment of the air-fuel mixture

P2886 Code 2886 indicates a malfunction or low efficiency in the operation of the catalytic system, the problem is observed in the first engine bank

P3081 The control unit reports a too low temperature of the power unit, the 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 damage or weakening of the clamps;

- use of low-quality refrigerant or consumables that have exhausted their service life;

- malfunction of the engine control unit;

- damage to the cylinder head gasket.

P3135 Malfunction in the inlet 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 to the end.

AUDI Sensor malfunction

 

C1048 07 (455691) Failure or malfunction of the ride height controller

020B Malfunction of the inlet temperature controller. Diagnostics of the G42 sensor is required.

011 Faulty wheel speed sensor

B1017 15 Error B101715 means problems with the airbag impact controller

B2010 Malfunction in the rear view camera, it is necessary to test the device itself, as well as the quality of its connection to the network

901A13 Malfunction of the front side airbag impact controller

C10AD 29 Failure or malfunction of the power steering motor position controller. Error C10AD29 may be accompanied by the inscription "the shutdown system worked on impact." Possible deactivation of the electric power steering.

P0113, (16497) The increased signal level coming from the intake air temperature controller. 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 a row of 1 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 determine the activity of the regulator. The problem may be cable bending.

P0234, (000564) The combinations P0234, P023400 or 000564 appear when the charge pressure sensor is broken. The parameters coming from the controller go out of the control range well above the upper limit.

P0299, 16683, (000665) The code P0299 or P029900 appears when the boost pressure sensor is not working properly. This error indicates that the controller reads out of the adjustment range. With error P029900, the controller value is well below the minimum limit.

P0321, (16705) With 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 coming from the controller.

P0322, (16706) Damage to the IAC - engine idle speed controller. In case of error Р0322, the signal does not arrive from the device to the microprocessor module.

P0336 Failure of the engine speed controller G28. Perhaps the malfunction is associated with fixing the absence of one of the teeth on the shaft.

P0340 Combination P0340 indicates a malfunction in 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) Malfunction of the gearshift controller. An incorrect signal is being sent to the engine control unit or there is no pulse at all. If error P0706, the user needs to test the operation of the device F125.

P1063 Error 1063 on cars 1999 and other years of release appears when there is a malfunction in the fuel pressure sensor. 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.

P1177 Code 1177 on Audi Q 5, B 4 and other versions indicates a malfunction in 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 sought in the operation of the regulator b2 s1.

P1539 Code 1539 appears when an incorrect pulse is received from the clutch pedal controller. The user needs to test the operation of the F36 device in detail.

P1823 Code 1823 appears when the pressure control sensor 3 installed in the automatic gearbox breaks or malfunctions. The user needs to test the operation of the N217 device and its electrical circuit, since the problem may be related to the wiring.

P2015 Code P2015 can be displayed as a combination of P201500 or 2015. This error indicates problems with the operation of the intake flap position controller. If error 201500, the user is advised to check the wiring, because the controller gives an incorrect signal.

P2020 Code P2020 reports a malfunction in the position controller of the intake flaps located in the second row. The problem is due to incorrect data coming from the sensor.

P2225 The combination of 2225 appears when the nitric oxide controller located in the second bank malfunctions. The cause of the problem may be the heating element.

P2556 Literally, this code can be translated as "a malfunction of the engine coolant level switch sensor." The cause of the problem should be sought in the thermostat.

P2293 Mechanical malfunction 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.

P2296 Also, a code indicating problems in the operation of the fuel regulator. It is necessary to test the operation of the device and its wiring, since the cause may be a short circuit in the power line.

P3007 Malfunction of the camshaft controller. The problem may be the absence of a signal from the sensor, which may be due to damage to the cable or disconnecting the device.

P3030 Failure of the second rotary angle sensor of the throttle actuator It is necessary to test in detail the operation of the G298 controller and its wiring.

U1113 Decoding of U111300 code on the instrument panel using the Vag-Com program - malfunction of the ABS rear sensor. On cars A6, C5 and other models, this code appears when the controller is damaged or if it is poorly connected to the mains. Check the sensor connector.

C10C8 Error code C10C800 appears when the air suspension sensor malfunctions. It is necessary to test the quality of the connection, as well as the sensor itself.

AUDI Malfunctions of electrics and electronics

 

P0131 (000305) Invalid signal coming from the oxygen controller at number 1 located in the first bank of the engine

B1015 1B Error B10151B - Failure or malfunction of the battery squib

B2000 This error may occur as B200049. The fault code indicates an internal malfunction of the microprocessor module. Most likely, the cause of the problem is programmatic in nature, therefore, to fix it, you may need to flashing the device.

P00B7 Problem related to the operation of the electronic thermostat for 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 may be displayed in the form of code P00B700.

P164C An incorrect signal is received from the engine fluid pressure controller to the microprocessor module, which does not correspond to the normalized values

P0016 Code P0016 can appear as a combination of P001600. This error appears when pulses do not match between the camshaft and crankshaft position controllers. With error P001600, the user needs to test the connection quality and the contacts of the G40 and G28 controllers.

P0017 Mismatch of pulses from the camshaft and crankshaft regulators. The user will have to diagnose in detail the operation of the G300 and G28 devices.

P0018 Mismatch of pulses from the camshaft and crankshaft position controllers. This refers to sensors located in the second row of cylinders. The cause of the problem should be sought in devices G163 and G28.

P0030 Code P003000 is the result of a break in the power line of the heating system of the first oxygen regulator. With this problem, a lambda sensor may fail. The reason should be sought in the first row of the engine cylinders.

P0036 Break or damage to the heating line of the second oxygen regulator located in the first row of engine cylinders

P0089 An incorrect signal is received 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 clogged flow meter, then it will need to be cleaned. To do this, you can use a special tool for carburetor engines.

P0106 On Audi A4 8 E vehicles and other modules, the combination indicates an incorrect pulse coming from the intake pressure controller or air pressure sensor. The user needs to check the operation of devices labeled as G71 and F96.

P0116, (16500) Code P011600 indicates an invalid signal from the G62 Refrigerant Temperature Controller

P0118 Malfunction in the coolant temperature controller. The on-board computer reports an increased pulse level coming from the sensor. The user needs to diagnose the G62 controller.

P0122 Invalid signal from throttle position sensor. To find the cause of the malfunction, the user needs to test the operation of the controller potentiometer.

P0133 The response time of the first lambda probe located in the row of 1 engine cylinders is too high

P0135, (16519) Lack of activity on the power line of the first lambda probe installed in a row of 1 cylinders

P0136 Fault on the line supplying the second oxygen regulator. The problem should be sought in the first row of cylinders.

P0141 The on-board computer detects a failure on 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 power line of the first lambda probe installed in a row of 1 cylinders

P0226 Code 0226 appears when an incorrect pulse arrives from the gas pedal position controller 1/2. To fix the problem, the user needs to check the operation of the sensors G79 and G185.

P0235 Malfunction in the boost pressure controller. The control unit notes that the sensor readings are outside the lower limit of the control range.

P0238, (000568) An increased voltage level recorded on the power line of the boost pressure controller. With error P0238, the integrity of the power cable is checked.

P0327 The reduced voltage value recorded on the power line of the first knock controller. The user needs to test the operation of the G61 sensor.

P0328 On-board computer detected too high a pulse in the power circuit of the knock controller. A complete check of the integrity of the G61 sensor, as well as the correctness of its connection is required. The problem may be clogging of the contact elements or the formation of rust on them.

P0341, (16725) The combinations P0341 and P034100 appear when the pulse coming from the camshaft position controller is incorrect. The cause of the problem may be the wear of the contact elements on the block or the clogging of the connector. The user needs to check the operation of the G40 sensor.

P0342 On Audi Cars C7, A7. Q3 and other versions, this code appears when the pulse level is low, fixed on the power line of the camshaft controller. It is necessary to test the connection quality and the integrity of the insulating layer of the G40 sensor cable.

P0343, (16727) An increased voltage level recorded in the camshaft position controller circuit

P0346 Invalid pulse coming from the camshaft position controller. The user must test the G163 sensor in detail - the contact may have come off the device.

P0413 Open or damaged power line to the secondary air control valve. A detailed diagnosis of the N112 device is required.

P0501, (16885) Incorrect pulse detected by the control unit when transmitting from the vehicle speed controller

P0550 Code 0550 appears when the wiring is damaged or the electrical circuit of the pressure controller located on the hydraulic power steering is malfunctioning

P0571 Code P0571 on Audi F9, A 8, E8 and other models reports an incorrect signal from the stop lamp switch. Damaged wiring or molten connector due to high voltage on the line.

P0600 On Audi 80 B3, B4, 100 C3 cars and other models, code 0600 indicates the absence of messages in the operation of the data bus of the drive unit. In other words, the fault must be sought in the wiring and quality of the connection of the control unit.

P0606 General DTC Indicating Malfunctions in the Engine Control Module

P0652 Code 0652 appears when the voltage is low on the power line of controller B

P0638 On 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 to the end, this will affect the functioning of the power unit as a whole. It is necessary to test the operation of the device J338.

P0705 Combination 0705 indicates a malfunction in the wiring supplying the transmission transmission engaged controller. The cause of the problem is the operation of the F125 controller.

P0727 The on-board computer cannot determine the impulse coming from the engine idle control module. The reason is the sensor or poor quality wiring.

P0851 Short to ground in the starter mechanism lock 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 on the insulating layer.

P1044 Damage to the injector power line

P1114 This code indicates a resistance that is too high registered on the power supply to the lambda probe. The user needs to test the electrical circuit of the second controller installed in the first row of cylinders.

P1171 Invalid pulse from the angle of rotation controller of the second throttle actuator. A check of the integrity of the housing and the performance of the element G188 is required.

P1206 Code 1206 is the result of a break or malfunction in the wiring supplying the nozzle located in the sixth cylinder of the power unit. It is necessary to diagnose the cable connected to the device marked N84.

P1256 Code 1256 on vehicles with 16 valve engines appears when the wiring is interrupted or the cable of the refrigerant temperature sensor is shorted to the battery. It is necessary to test the operation of the G62 controller in detail.

P1268 Code 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 are outside the range of the adjustment range and are below the acceptable threshold of values. The cause of the problem should be sought in the operation of the 3-N242 device.

P1289 Code 1289 indicates a short to ground in the power circuit of the turbocharger bypass valve. The control unit recommends checking the operation of the N249.

P1292 Code P1292 appears when the wiring supplying the electronic control thermostat for the cooling system of the power unit is damaged or broken

P1340 Code P1340 appears when the pulses from the camshaft and crankshaft position controllers do not match. We need a detailed diagnosis of the sensors G40 and G28.

P1347 Mismatch of pulses from the position controllers of the crankshaft and camshafts located in the second row of cylinders

P1358 Breakage of the power line or its damage in the power circuit and control the ignition system. The problem is fixed in the second cylinder of the engine. The cause of the malfunction must be sought in the power cable of the coil.

P1406 Code 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 exhaust gas recirculation system. The user needs to diagnose an item labeled G98.

P1422 Code 1422 is associated with a short to battery in the secondary air control valve circuit. A detailed check of device N112 is required.

P1392 The on-board computer reports an open circuit or a short circuit plus on the line supplying the camshaft controller. This refers to a sensor located in the second row of cylinders. The user needs to test the operation of the G163 device in detail.

P1450 Error 1450 is a result of a short circuit to the positive terminal of the secondary air supply cable

P1473 It is necessary to test the wiring and the node itself for operability.

P1528 This code indicates a break in the wiring of the variable valve timing system in the first row of cylinders

P1531 Open or damaged electrical wiring supplying the valve timing sensor

P1547 Code 1547 appears when there is a short to ground on the power line of the boost control system solenoid valve N75

P1577 Open or damaged circuit connected to the solenoid valve of the right hydraulic motor support. The N145 sensor is subject to diagnosis.

P1588 Code P158800 reports damage to the power supply line of the solenoid valves of the hydraulic bearings of the power unit. The cause of the problem should be sought in the operation of sensors N144 and N145.

P1602 The on-board computer reports that the voltage level detected at terminal 30 of the ignition switch is too low. The cause of the problem may be the battery, generator, or malfunction of the circuit breaker itself.

P1606 Failure or damage to the power line sensor fixation of a bad road. Also, this error may indicate an incorrect set torque of the engine from the control module of the anti-lock system.

P1624 (005668) Error P1624 on Audi A4 8E and other models of 1988 and other years of release appears when an active request for activation of an emergency lamp is active. Check the transmission control module for trouble codes.

P1626 Combination 1626 appears if the microprocessor module cannot receive messages from the transmission unit control unit

P1653 The on-board computer cannot read data from the trouble memory of the anti-lock braking system control module

P1654 Code appears when it is not possible to read information from the dashboard fault memory

P1747 Power line break or short circuit to ground in the voltage supply circuit of the solenoid valves

P1748 General DTC, indicating a malfunction in the microprocessor module. The reason may be both a software malfunction and a device shutdown, as well as moisture getting on it.

P1757 Code 1757 is general and indicates an open circuit in the power supply system. With the help of a multimeter, it is necessary to ring all the wires connected to the control module, as well as the battery.

P1773 The signal coming from the pressure controller in the hydraulic system of the automatic transmission does not meet the normalized values. It is necessary to check the operation of the sensor number 1.

P1793 No signal from the second gearbox output shaft speed controller. Problem P1793 may be due to wiring damage or short circuit. The user needs to test the operation of the G196 device in detail.

P1850 The designation of this combination is the absence of messages from the control unit of the power unit. The problem indicates the complexity of the digital interface and the data bus. It is necessary to test the quality of connecting the control unit to the vehicle electrical network.

P1851 Malfunction in the operation of the data bus. The on-board computer does not receive messages from the control module of the anti-lock system.

P1857 Code P1857 can be literally decoded as “load signal - 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.

P1876 Open or damaged power line to the valve located on the front support of the car engine.

P1923 Error P 1923 on Audi 80 PM and other models appears when errors read information from the memory of the engine control module malfunctions

P2008 Damage to the wiring or short circuit in the supply line of the intake flaps

P2009 The on-board computer detects a short circuit to ground in the power circuit of the intake flap

P2014 Damage to the power cable to which the intake flap adjuster is connected

P2122 On the Audi 80 “barrel” and other versions, the combination 2122 appears in the case of a reduced signal coming from the gas pedal position controller. The problem should be sought in the G79.

P2294 Break or damage to the power line of the fuel pressure sensor. To remove this error, you need to test the sensor element (sensor) and change it in the event of a breakdown.

P2403 On-board computer with error 2403 reports a broken wire or a failure in the power line supplying the fuel leak check pump controller

P2563 An invalid pulse was detected by the control unit from the boost pressure sensor position controller

P2626 The on-board computer recorded damage to the power line of the linear oxygen regulator located in the first row of cylinders. A malfunction may be a malfunction in the matching circuit.

P3053 On cars of 1996 and other years of manufacture, this code indicates a short circuit on the power line or a break in the wiring connected to the starter mechanism. The engine control unit receives a bad signal from terminal 50.

P3103 Malfunctions in the electric motor of the intake manifold flap actuator. The user needs to test the operation of the V157 device in detail.

P3348 Code P3348 indicates a failure in the power circuit of the turbocompressor control module. The cause of the problem is damage to the wiring or short circuit. Detailed diagnostics of 1-J724 are required.

P150A00 Malfunctions in the operating range or characteristics of the electrical circuit supplying the nozzle of the second engine cylinder

U0111 Lack of communication with the control module of the energy management system. It is necessary to test the operation of the control module and the main elements of the mains - the generator set and the battery.

U0115 Lack of communication with the powertrain control unit, a possible cause of the problem may be a wiring failure

U0121 The control unit can not determine the operation of the control module anti-lock system

U0155 Lack of communication with the control module of the dashboard, data may not be displayed on the control panel or information will not be displayed correctly

U1008 Code U100800 appears when an attempt to read information from the fault memory fails. The cause of the problem should be sought in the diagnostic interface of the J533 data bus.

U1121 If the U112100 combination pops up when reading errors on the Audi C4, B6 and other models, this indicates problems in the operation of the data bus. The malfunction is related to the operation of the steering module; a signal may not be received from the device.

U1123 Code U112300 indicates a malfunction in the data bus, the control unit receives incorrect data on the operation of the engine. It is necessary to check all the connectors and pads of the device.

Lost Communication Faults

 

The digital data bus is damaged.

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

- disconnection of contacts due to vibration;

- corrosion or clogging, moisture entering the connector;

- melting of contact elements on the block as a result of voltage drops;

- damage to the cable, an open circuit connected to the device;

- wear of the insulating layer on the line, which led to a short circuit in the wiring;

- equipment failure.

U0103 On the Audi 100 in 44 body and other models, this code indicates a lack of communication with the gear selector

U0104 The control unit cannot determine the control module by the cruise control system

U0111 Lack of communication with the control device of the energy management system EPC

U0123 The engine control unit cannot detect the presence of a speed controller around a vertical axis

U0128 Malfunction of the control module of the electromechanical parking brake ("handbrake")

U0146 Lack of communication with the control unit of the data bus diagnostic interface

U0151 Malfunction in the microprocessor module airbags

U0235 Lack of communication with adaptive cruise control system

U1003 The control unit cannot detect the presence of a trailer recognition control unit

U1006 Lack of communication with the nitric oxide sensor installed in the front row.

AUDI Transmission malfunctions

 

P060A Code P060A00 indicates an internal malfunction in the microprocessor device. Usually this code does not appear alone, but along 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 gearbox control unit.

P17E0 Error P17E000 indicates a malfunction in the gearbox. The user needs to test the operation of the transmission gearbox.

P17E1 Error code P17E100 is associated with the operation of an automatic transmission. The cause of the problem may be the hydraulic part of the unit or one of the sensors. Sometimes a malfunction consists in problems in the operation of the gearbox control unit.

P17D4 The combination of P17D400 on A3 vehicles and other models is associated with a mechanical malfunction in the gearbox. A detailed check of the transmission unit for malfunctions is required.

P17D6 Code may appear as a combination of P17D600. This error indicates a problem in the operation of the first engine clutch. The problem only appears on vehicles with a DSG robotic gearbox (DSG).

P17D8 Torque limitation due to malfunction of the temperature coupling. Check the operation of the gearbox board. The error may be accompanied by a combination of 8040.

P174F Electrical malfunction of valves or gearbox solenoids

P176B Malfunction reported to the second gear servo switch. The control unit notes that this device is not adjustable. It is necessary to test the operation of the wiring and the switching device.

P178F Problems in the operation of the pressure control valve, the device is dirty. The element is located in an 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 may be displayed in the format 006031.

P179D Error code P179D00 appears when the oil cooling valve malfunctions. The cause of the problem may be the device itself or its wiring. It is necessary to test in detail the operation of the automatic transmission and make sure that all sensors are operational.

P179E 00 Breakage of the position sensor of the link of the transmission unit. The problem with error P179E00 may not be in the sensor, but in the gearbox control unit.

P179F 00 Error P179F00 is decoded as a malfunction in the controller of the engaged gear stage, incorrect operation of the regulatory device

P0730, (17114) Incorrect gear ratio in transmission control systems. Checking the transmission control unit as well as the gearbox sensors is required.

P0750 On cars of 1995 and other years of manufacture, this combination appears in case of failures in the operation of the switching valve under the marking 1. It is necessary to check the functionality of the device N88.

P0741, (17125) The on-board computer of the vehicle reports a lack of torque transmission in the operation of the gearbox clutch. A detailed diagnosis of the torque converter device is required. A possible cause may be a clutch failure.

P0783 Malfunction of the control system switching from third to fourth gear and vice versa

P1701 Code P170100 appears when the control unit is blocked by the transmission unit. The user needs to test the microprocessor. With this error, the gearbox may go into emergency operation.

P1741 Code P1741 appears when the clutch adaptation system malfunctions. The control unit notes that the mechanism has reached the upper limit of adaptation.

P1742 The code may appear as a combination of P174200. Literally, the error translates as "the limit of adaptation at the time of closure of the coupling has been reached."

P1753 The combination P1753 appears when the Tiptronic F189 gearbox gearbox malfunction. The control unit does not receive a pulse from this element. A detailed check of connection quality and wiring integrity is required.

P1890 Transmission malfunction, which in practice is usually associated with damage or short circuit in the operation of the transmission control switch system. The problem may lie in the control module of the variable-speed gearbox or valve block, as well as the control line for the start clutch.

P1743 Code P1743 appears when the clutch slip warning light malfunctions. With such a problem, incorrect operation of the transmission unit is possible, difficulties when shifting gears.

P2755 Transmission fluid sensor defective or device power circuit damaged. It is necessary to test the operation of the gearbox, including the unit control unit.

 

Description of decimal codes

 

0004 Malfunctions in the control module of the car with an engine equipped with gas equipment. The cause of the problem may lie in the microprocessor itself, as well as 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. A leak may occur during operation of the latter, therefore, gasket diagnostics are required.

0013 Malfunctions in the operation of the executive electric motor of the flap responsible for supplying warm air to the passenger compartment. A detailed diagnosis of the motor connection, as well as the integrity of its wires, is required. Check subject to electric motor V198.

0020 Faulty control button for defrosting the right rear window. The problem may be the disconnection of the contact or the mechanical failure of the key. To find the cause, you should carefully inspect the control element, make sure the integrity of its guide component, as well as the springs.

0032 Failure or malfunction of the temperature controller of the evaporation device. A detailed check of the G308 sensor is required.

0853 Malfunction in the electric motor for 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 Control module is incorrectly encoded. 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 programmatic in nature, a flashing of the block will be required.

2811 Malfunctions in the system for determining the parameters of the air-fuel mixture

4014 On-board computer detected a malfunction in the regulator of the phases of the gas distribution system

404A Damage to the power line to the outdoor temperature controller. A detailed check of the G17 device is required.

4051 In one of the cylinders of the power unit misfire detected air-fuel mixture

4054 Malfunctions in the first engine cylinder, problems with the formation of the air-fuel mixture are possible

4063 No signal from the intake air temperature controller 2. A detailed check of the G299 device 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 Functional limitation as a result of receiving incorrect data by the microprocessor module.

Possible causes of the malfunction:

- breakage or problems with connecting sensors anti-lock system;

- malfunction of the ABS control module;

- lack of communication on the CAN interface.

4699 The on-board computer reports mechanical damage to the valves of the pump nozzles. An incorrect signal is being sent from the devices to the control unit.

4732 Malfunction in the power line pressure sensor marked 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 engine operation (tripling of the power unit, reduced power, extraneous metal knock from under the hood);

- the appearance of the Check Engine icon, as well as an indicator in the form of an oiler on the dashboard;

- drop in engine fluid level.

5670 On cars 2011 and other years of production, this code indicates an incorrect pressure level in the boost system

7080 Lack of communication with the electromechanical parking brake control module. It is necessary to test the wiring, and also make sure that the handbrake sensor is connected correctly.

713D The 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 must be checked with the vehicle manufacturer or dealer. The installation of new software is recommended to be entrusted to specialists.

7141 Incorrect software version installed in the ride height control system control module. You need to make sure that you have updated firmware and install it if necessary.

7408 There were problems reading data from the fault memory of the digital data bus diagnostic interface. The user needs to check the operation of the J533 device. Often the cause of the problem is oxidation of the contacts or damage to the electrical circuits.

7409 Invalid message sent over the data bus diagnostic interface

8029 Malfunction of the main pressure valve, this problem can lead to malfunctions in the engine or other vehicle systems

9708 Malfunction of the transmission unit or clutch system. It is necessary to test the operation of mechatronics, to check the integrity of the clutch discs for wear. The malfunction may be accompanied by an inscription on the dashboard "gearbox mail function".

Description of hexadecimal codes

 

00003 General error code in the operation of the engine control unit. It is necessary to check the connection quality of the module, since the cause of the problem may be the disconnection of the contact.

00166 Malfunction of the access switch and engine start authorization. The user needs to test the operation of the E415.

00230 Malfunction in the switching device position P of the gearbox selector. A detailed check of element F305 is required.

00252 Failure or malfunction of the rear left bulb of the combination headlamp. It is necessary to test the operation of the power source. In the event of a lamp failure on many Audi models, a special sound signal is triggered in the cabin.

00256 Failure of the pressure and coolant temperature controller. It is necessary to check the correct connection of the device to the vehicle's on-board network. The cause of the problem is sometimes a malfunction of the thermostat.

00257 Failure of the ABS intake valve located in the front left brake circuit. It is necessary to test and, if necessary, change the device N101.

00283 Failure of the speed controller mounted on the front left wheel. The cause of the malfunction should be sought in the operation of the G47 sensor.

00285 Malfunctions in the operation of the front right wheel speed controller. A detailed check of the G45 device is required.

00287 Failure or malfunction of the rear right wheel speed controller. The user needs to test the G44 sensor in detail.

00290 Fault in the speed controller located on the rear left wheel. The user needs to check the operation of the sensor marked G46.

00293 Malfunction in the multifunction switch device F125

00302 Malfunctions in the relay of the electromagnetic solenoid valve ABS, element check required J106

00322 Failure of the switching device of the passenger compartment security system. The user needs to test the E-267 switch in detail, it is possible to disconnect the contact.

00384 Malfunction of the optical data bus, the problem must be sought in the integrity of the contacts or damage to the wires

00446 Limitation of the functioning of the cooling system as a result of insufficient voltage in the mains

00457 Malfunctions in the control module of the on-board network J519, possible causes of a problem:

- damage to electrical circuits or contacts on the block block;

- internal device malfunction;

- mechanical damage to the module;

- moisture entering the control unit;

- malfunction of the generator or battery.

00470 Malfunction in the data bus. Comfort when transmitting information on a single conductor.

00473 The on-board computer indicates a malfunction in the operation of the control module of the electromechanical parking brake. A detailed diagnosis is subject to the J540 device.

00493 Faulty sensor control module. The user needs to check the status of the connection quality, as well as the unit itself for damage. Detailed diagnosis of the ESP (ECP) G419 is required.

00496 Malfunctions in the operation of the front ride height controllers, possible causes of the problem:

- failure of the sensor itself;

- contamination 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 in the engine speed controller. The user needs to test the operation of the device G28. The cause of the problem may be poor contact. This malfunction is usually accompanied by “triple” of the power unit and failures in its operation.

00514 Malfunctions or functional failure of the ignition timing controller G4

00515 Hall sensor failure

00516 Malfunctioning throttle switch device. The user also needs to check the operation of the idle speed sensor. The device F60 is subject to diagnosis.

00518 Malfunctions in the operation of the throttle potentiometer, the diagnosis of element G69 is needed

00519 Malfunction in 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 connected properly and that there are no defects on the power cable.

01521 Malfunction of the tire pressure controller, damage to the wiring

00523 Malfunction in the air temperature controller located at the inlet. Check the functioning of the G42 sensor.

00525 Failure or malfunction of the oxygen regulator G39

00526 On the 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 comply with standardized ratings. It may be higher or lower.

Possible causes of the problem:

 

discharge or damage to the battery that has led to electrolyte leakage;

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 needle travel sensor G80

00549 Flow signal appearance

00550 Error 550 - malfunction of the fuel injection start regulator

00553 Malfunction of the mass air flow sensor. The user needs to check the integrity of the body of the G70 device, as well as its heating element. The latter could become clogged and to remove contaminants, it may be necessary to clean it with a special tool. If this does not help, then the sensor changes.

00560 Malfunction in the exhaust gas recirculation system.

Possible causes of the problem:

- a malfunction in the operation of one of the sensors (in order to solve the problem yourself, you

need to check the controllers and change inoperative devices);

- depressurization of the system as a result of damage to one of the nozzles or highways;

loosening of pipe clamps;

- malfunction of the control module.

00561 Problems associated with the adaptation of the air-fuel mixture. You must look for the cause and start with oxygen sensors, as well as mass air flow.

00562 Malfunction in the engine temperature sensor and consumable level. It is necessary to check the operation of the controller and the quality of its connection. The cause of the problem may be poor contact.

00575 Incorrect pressure level recorded in the intake manifold of the engine

00576 Malfunction of terminal output 15

00588 Failure or malfunction of the airbag igniter installed on the driver's side. The user needs to test the operation of the N95 device.

00597 The on-board computer detects a mismatch in the wheel speed signals. A possible cause may be ABS sensors or poor contact with the wiring.

00604 Problems in the operation of the potentiometer of the executive electric motor of the air intake flap. A detailed check of the G113 device is required.

00652 Malfunction in 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 control unit.

00656 Failure or lack of power on the connection line of the occupancy sensor of the front passenger seat. The device G128 is to be diagnosed.

00668 Incorrect voltage on-board network, fixed at terminal 30

00670 A malfunction in the controller throttle control. Detailed diagnosis of the G127 device is required.

00710 Jamming of the actuator motor of the defrost damper or disconnecting the device from the mains. It is required to verify in detail the operation of the V107 engine.

00716 Malfunctions in the operation of the executive electric motor of the air recirculation flap. It is necessary to verify in detail the operation of element V113.

00735 Failure or malfunction of the potentiometer of the executive electric motor of the air recirculation flap. Detailed diagnosis is subject to the device G143.

00739 Failure or lack of connection of the circulation pump device of the engine cooling system. Because of this, antifreeze may not be pumped along the highways of the system, which can lead to slight or serious overheating of the power unit. A detailed check of the V50 device is required.

00767 Failure or incorrect operation of the temperature sensor of the rear evaporation device. The user needs to test the operation of the device G133.

00768 Failure or malfunction in the temperature control of the rear heat exchanger. For verification, it is necessary to remove and verify the integrity of the body of the device G154.

00771 Failure or malfunction of the fuel level controller G

00776 Malfunction in the front left ground clearance controller. In the event of a breakdown, the sensor must be replaced; a detailed check of the G78 device is required.

00778 Malfunction in the steering angle controller. The cause of the problem is a breakdown of the G85 sensor.

00779 For cars 2008 and other years of production, this combination is the result of a breakdown or malfunction in the temperature controller of the outdoor air. The user needs to check the operation of the G17 sensor and make sure that it is in good contact with the wiring.