Complete list of BMW Fault Codes
How to diagnose an error? How to reset the error? The list of BMW errors is considered for the following models:
E39; E46; E60; E65; E70; E83; E90; F10; F20; X3 E34; X5 E53; X6.
Content
- What is the error
- Table with errors
- Explanation of errors in German and English
- Explanation of warnings in English
- Error Description
- Camshaft malfunctions
- Malfunctions in the fuel system
- Engine errors
- Sensor malfunctions
- Electrical faults
- Immobilizer malfunctions
- Malfunctions of electronic modules and communication systems
- Transmission errors
- Anti-lock braking system self-diagnosis errors
- Description of errors Bosch Motronic 1-1, 1-3
- Description of Bosch Motronic 1-2, 1-3, and 1-1 Flashing Codes
- Description of errors Bosch Motronic 1-7 and 3-1
- Description of errors in the MS40 control unit
- MS41 Block Errors
- How to diagnose an error?
- Video: computer diagnostics of BMW cars
- How to reset the error?
List of error codes
| Einspritzanlagen | A message indicating a malfunction in the engine management system. The user needs to test the operation of the control module and make sure that it is in good contact with the mains. The problem may be a clogged connector. |
| Motor not program ( EngineFailsafeProg ) | The power unit control system has switched to emergency operation mode. The problem may be accompanied by a speed limit. |
| Kuhlwassertemperatur ( CoolantTemperature ) | Overheating of the power unit. It is necessary to check the quality and level of the coolant and add consumables if necessary. |
| Kuhlwasserst . prufen ( CheckCoolantLevel ) | Low level of refrigerant in the cooling system. It is necessary to check the volume of fluid and replenish it. If everything is in order with the level of antifreeze, the problem may be a malfunction of the volume sensor. |
| Stop! Oldruck Motor (Stop! Engine Oil Press) | Reduced pressure level of engine fluid in the power unit. The driver needs to stop the engine to prevent its failure. The amount of lubricant is checked and it is added if necessary. The pressure problem may be due to a broken sensor. |
| Olstand Motor prufen ( CheckEngineOilLev ) | Reduced volume of engine fluid in the engine |
| Bremsflussigk prufen ( CheckBrakeFluid ) | Low level of brake fluid in the brake system. It is necessary to open the hood and check the expansion tank with consumables. |
| Bremsbelag prufen ( CheckBrake Linings ) | Wear and need to replace brake pads |
| Getriebenotprpgramm ( Transmission fault ) | Failure of the gearbox, the transmission unit has switched to emergency operation mode. Possible speed limit, some gears may not be included. Such a problem may be accompanied by jerks and jerks. The user needs to test the operation of all the components of the box, from the control unit to the sensors. Typically, such an error manifests itself with the constant use of low-quality or exhausted oil. If there are traces of precipitation and wear products in the liquid, the consumable must be replaced. |
| Bremslicht prufen ( CheckBrakeLights ) | Problems in the operation of the stop lights of the car. Reported failure of one or two taillights. |
| Abblendlicht prufen ( CheckLowbeamLights ) | Malfunction in the low beam system. If the light sources are intact, then the user should check the operation of the safety devices and relays. Also, the problem may be in the wiring. |
| Rucklicht prufen | Malfunctions in the overall lighting system. The steps to find the cause are similar – you need to check the bulbs, wiring and fuses. |
| Standlicht prufen ( CheckHighbeamLights ) | High Beam Problems |
| Nebellicht hinten prufen | Malfunctions in the functioning of the rear fog optics |
| Nebellicht vorn prufen ( CheckFrontFoglamps ) | Malfunctions in the functioning of the front fog optics |
| Kennzeichenlicht prufen ( CheckNumplateLight ) | Inoperability of the rear license plate lighting system |
| Fernlicht prufen | Vehicle high beam not working or malfunctioning |
| Ruckfahricht prufen ( CheckReverseLights ) | Reversing lights not working |
| Limit ( Speed limit ) | Exceeding the speed limit |
| Niveaurregel , inaktiv ( SelflevelSusp . Inact ) | Malfunctions associated with the operation of the clearance adjustment system – ride height |
| parkbremse lost | Handbrake malfunction. The message may also appear on a car with the engine running, if the “handbrake” is raised. |
| Kofferraum offen ( BootlidOpen , TrunklidOpen ) | Car trunk open |
| Tur offen ( DoorOpen ) | One or more doors unlocked |
| Gurt angelen (Fasten Seat Belts) | Starting off without wearing seat belts |
| Funkschlussel Batt | The need to replace the batteries in the key or remote control of the central lock or immobilizer |
| Vorgluhen ( Pre-Heating ) | Warming up glow plugs. This message is relevant only for diesel power units. |
| waschwasser fulen ( WasherFluidLow ) | Low level of washer fluid in the expansion tank under the hood |
| Feststellbremse losen ( ReleaseParkingbrake ) | Parking brake needs to be released |
| Bremslichtelektrik | Malfunction of the brake light switch |
| Niveauregelung | Reduced rear brake pressure |
| Getriebe | Breakdown of the electrical component in the operation of the automatic transmission |
| Olstand Fetribe | Reduced level of transmission fluid in the box. The user needs to open the filler plug and check the level of lubrication in the unit. Perhaps the leak is due to damage to the gearbox or one of the oil channels. |
| ASC | Activation of the auto -controller of motion stabilization |
| T rans fail safe prog | On cars with N52 engines and other versions, this code indicates a gearbox malfunction. The problem may be a software error in the control unit or a breakdown of one of the structural components. If a visual inspection does not help to determine the cause (oil leakage, use of low -quality lubricant, wear, damage to the wiring), then the unit will need to be dismantled and rebuilt. This method will allow you to identify failed components. If this does not help, then the unit changes completely. |
| Kein Bremslicht | No connection with stop signals |
| Betriebsanleitung ( Owner’s handbook ) | Read the instruction manual |
| driving stability | General message indicating a malfunction in the vehicle. In most cases, the problem is accompanied by the inability to start the engine as a result of the discharge of the battery. |
| Can moment reduction | Malfunction of the digital CAN interface |
| CheckParkLights | Message about the need to check the parking lights. Diagnostics of optics, lighting sources, as well as fuses and relays is required. The problem of inoperability may be due to a breakdown or clogging of the contacts of the sensor installed on the brake pedal. |
| CheckTrailer Lights | Trailer lights do not work or function incorrectly, bulb and wiring diagnostics required |
| CheckTyrePressure | Tire pressure needs to be checked |
| DSC/4×4 Inactive | No stabilizing effect of DSC or xDrive systems |
| FuelInject . System | The appearance of malfunctions in the injection system of the power unit |
| Lights On | External optics activated |
| outside Tempe rature – 5.0 ° С | The ambient air temperature is -5 degrees |
| SetTyrePressure | The ride height control system is inactive, the vehicle speed must not exceed 60 km/h. Messages are displayed on the dashboard one after the other. |
| TrailerMode | Changing the level of ground clearance from optimal to movement under load. The warning lights up on the instrument panel for 3 seconds. |
| Trans FailsafeProg | Activation of the emergency operation of the gearbox. The problem is relevant only for automatic transmissions. |
| Transmissin Overheat | Overheating of the car gearbox |
| TyreControlInactive | Malfunctions of the RDC module |
| Tougue Defect | Damage to one of the tires |
The code / Error Description
| B2AAA | Wrong format for reading fault codes. The user needs to use other equipment or software for diagnostics. |
| 120208 | Excess boost pressure |
| 120308, 30FF | Insufficient boost pressure The problem manifests itself with the following errors: malfunction of the turbine or blower; reduced pressure of motor fluid in the engine; malfunctions of the EGR system; the appearance of excess air in the intake manifold or the air flow is difficult as a result of filter clogging; failure of the boost pressure controller. |
| 120408 | Insufficient boost pressure. There may be problems with the drive. |
| 244c00 | Critically low air pressure. With such a problem, the engine may not accelerate well, and the box often does not go into manual or sport mode (for automatic transmissions). It is recommended to dismantle the turbine and diagnose it, as well as make sure that there are no defects and that the geometry of the unit is correct. |
| 4200a3 | False code that does not indicate a malfunction in the car. The reason is the incorrect functioning of the software of the vehicle control unit or malfunctions in the firmware. Also, the code may be informational in nature and not be related to the operation of the microprocessor. |
| 3100 | Malfunctions in the boost pressure control system. The problem may be air leakage, so you need to check all the lines of the system for leaks. |
| 4166 | Malfunctions of the soot particle filtration system |
| 4501, 4530 | Malfunction of the exhaust gas recirculation control system. With such an error, it is recommended to diagnose all components of the unit, but you should start with oxygen and air flow sensors. Most likely, one of the devices needs to be replaced. |
| 285E | EML error (EML) – a malfunction in the valve stroke control system. There may be problems with starting the engine, up to the impossibility of starting it. |
| 29F2 | Low pressure in the low pressure fuel system |
| 2C58 | Malfunctions in the boost pressure control system. The unit has been switched off, engine malfunctions are possible. The pressure build-up is out of range. |
| 2E81 | The speed of the water pump pump does not correspond to the specified values. Most likely, the problem is a malfunction of the electric motor or an internal contact closure. |
| 452A | Malfunctions of the particulate filter system |
| 481A | Large particle filter failure |
| 5F12 | Worn or broken brake pads. Perhaps the problem is in the operation of the sensor itself, installed on the overlays. |
| 5F13 | Car brake pad wear. The problem is in the rear axle, so you need to test the pads located on the rear wheels. |
| 9C64 | Malfunction in the automatic air recirculation control system. The problem must be sought in the wiring or poor-quality contact of one of the sensors. Also, the reason may be the failure of the air conditioning control unit or the compressor unit. |
| 30FE | Critically high boost pressure in the turbocharger |
| 377A | Malfunction of the water pump or pump – the device is blocked. The mechanism needs to be replaced, since it cannot be repaired at home. |
| 93C1 | A malfunction code in the passive safety system may indicate a malfunction in the strap or pillows. It is necessary to test all sensors and the correctness of their connection, as well as the absence of damage or blockages on the pads. The problem may lie in the belt pretensioners or airbag squibs. |
| 93D7 | General error in the operation of airbags. The user needs to check the operation of all passive safety elements, from sensors to the control unit, as well as Airbag squibs . |
| 9C76 | Malfunction in the operation of the additional water pump |
| A106 | If the on-board computer (BC) M51 or another version showed this code, this indicates electrical malfunctions associated with the functioning of the passive safety system. Belts and pillows, in particular, their sensors, are subject to diagnostics. The problem may be poor contact of one of the devices with the mains, as well as power surges. |
| D368 | Malfunction of the active steering system. The user needs to check all the sensors and steering column wiring, and also make sure that the devices are in good contact with the network. |
| P0401 | Malfunction associated with the functioning of the exhaust gas recirculation system. The problem lies in the insufficient level of recirculation. |
| Р0411 | On BMW E3 and other versions, this code indicates a problem with the operation of the exhaust air supply system. The motor control unit reports an incorrect air flow rate, so the problem may be a leak and a lack of tightness. |
| P0491 | Malfunctions in the exhaust air supply system, the problem lies in the first bank of the engine |
Camshaft malfunctions
| 002AAC | Malfunctions in the intake system with a variable length of the intake tract. There may be a malfunction of the camshaft or the Valvetronic assembly . The shaft must be checked for damage to the teeth. |
| 130104 | General fault code in the operation of the variable valve timing system. It is necessary to test all the camshaft controllers and the marks on the pulleys. The problem may be one of the teeth is worn or damaged. |
| 130108 | The problem of the Vanos system – valve timing |
| 130308 | Malfunctions in the operation of the variable valve timing system. Malfunction in the operation of the control mechanism, the required position of the shafts has not been reached. |
| 2731 | Malfunction in the operation of the intake camshaft control system. The problem should be sought in the first and second rows of cylinders. |
| 27BC | Malfunctions in the control function of the camshaft of the exhaust system in the second row. A violation of the identification of labels or valves has been reported. |
| 2A6F | Valvetronic valve timing system malfunction – minimum lift limit exceeded |
| 2A9A | Discrepancies in the operation of the camshafts – sensor readings are out of range |
| 2A99 | camshaft correlation system malfunction . The cause of the problem must be sought in the pulley itself, the lack of alignment of the marks, or mechanical damage to one of the teeth. Also, the problem may lie in the camshaft sensor . |
| P13C0 | The variable valve timing system is defective. The reason must be sought in the valves, the shafts themselves or the sensors. |
| P0011 | Incorrect position of the camshaft, the problem is in the first bank of the engine. The engine control unit reports a too early opening angle of the valves, a malfunction of the system is noted. The cause of problem P0011 may be in the operation of the engine control unit. |
| P0012 (0012) | Delay of position A of the camshaft in the first bank. With such an error, the Check indicator is always on on the dashboard Engine . Reasons that could lead to this problem: low level of engine fluid or lubricant is critically dirty, it is necessary to change consumables; malfunctions or malfunction of the mechanism for changing the valve timing; malfunctions in the operation of the engine fluid control valve; open line or short circuit of the VVT electrical circuit; malfunction of the wiring supplying the lubrication control valve, a short circuit is possible; problems associated with the functioning of the ECM control module. |
| P0014 | Malfunctions in the drive mechanism for changing the valve timing. Too early valve opening angle reported. |
| P0015 | Malfunctions in the operation of the drive device of the variable valve timing system. The problem is related to the release in the first bank of the engine. The reason should be sought in the late opening angle. |
| P0022 | Incorrect position of the camshafts. The problem is that the valve opening angle is too late. The cause of the malfunction may be the incorrect alignment of the marks on the pulleys or malfunctions in the operation of the control module. |
| P0024 | Incorrect position of the engine camshaft. The problem should be sought in the second bank of the power unit. The reason is that the opening angle is too early. |
| P1017 | Malfunctions in the operation of the variable valve timing system, the problem is in the first bank of the engine. The reason is the signal received by the control unit – the pulse is outside the upper or lower range. It is necessary to test the wiring and connectors. |
| P1030 | Malfunctions associated with the operation of the variable valve timing system. The problem is the control deviation in the first bank of the power unit. The reason should be sought in the power line. |
| P1553 | Incorrect reference value in the position of the crankshaft and camshaft intake valves. The value obtained is out of range. |
| R2870 (2870) | Stop adaptation of the Vanos systemassociated with a change in valve timing |
Malfunctions in the fuel system
| 11A002 | Incorrect fuel pressure in the line, fixed by the control unit |
| 1260 | Malfunction in the control system of the fuel supply pumping device. It is necessary to check the integrity of the wiring and the quality of the contact between the pump motor and the on-board network. The problem may be the failure of the motor or damage to the connector. You should also make sure that the relay or fuse responsible for the functioning of the fuel pump is working. |
| 4570 | Insufficient pressure in the fuel rail. The user needs to test the integrity of all pipes and lines for wear. |
| 09F6 | Malfunctions in the rail pressure control system when starting the power unit (relevant for BMW X1 E84) |
| 29E0 | Error in the formation of the air-fuel mixture. It is necessary to check the operation of the fuel filter device, as well as to make sure that the oxygen and mass air flow sensors are in working order. |
| 2E82 | Malfunction of the pump, the mechanism has turned off |
| 30BE | Malfunctions in the operation of the high pressure fuel pump or converter elements. It is necessary to test both nodes and check their wiring. The cause of the problem may be due to a malfunction of one of the fuses or relays. |
| 2A19 | Malfunction of functioning of the valve of evaporation of fuel |
| 2D60 | Malfunctions in the fuel quantity control system, it is necessary to check the pumping device |
| 4521 | Malfunctions in the boost control system |
| 4620 | Incorrect pressure in the fuel line. The problem is accompanied by a decrease in the power of the power unit and may be due to a malfunction of the pumping device and sensors. |
| 4B1C | Malfunctions associated with the functioning of the heating mechanism of the fuel filter. The user needs to test the filter device in detail and replace it if it malfunctions. Otherwise, starting the E65 engine or another model will not be possible if the water freezes in the filter. |
| 4BDA | Malfunctions in the fuel pressure control system. The operating pressure level is critically low, the control unit also reports a positive adjustment deviation. It is necessary to check all the sensors and the integrity of the highways. |
| A6D1 | Malfunction of the pumping device for the make-up water of the heating or heating system. Most likely, the problem is in the additional water pump. If the assembly is faulty, it is required to check in detail the operation of its brushes for wear and to replace the mechanism in case of a breakdown. A pump malfunction will lead to malfunctions in the heating system. |
| P114B | Malfunctions in the fuel balance formation system. The data received by the microprocessor does not correspond to the normalized parameters or is out of range of acceptable values. The user needs to check the oxygen sensor located after the catalytic converter. |
| P114D | Violation of the fuel balance formation system. The cause of the problem may be the operation of the oxygen controller installed after the catalytic converter. |
| P0170 | Malfunctions in the fuel balance system. The P0170 problem must be sought in the first bank of the power unit. A malfunction is usually accompanied by a limitation in engine power. |
| P0173 | Malfunctions in the fuel balance system. The problem is in the second bank of the power unit. The reason may be a malfunction of the fuel pump or one of the elements of the ignition system. It is also necessary to test the operation of the oxygen and air flow sensors. |
| P0420 | Malfunction of the catalytic converter. The problem lies in the first bank of the engine and indicates a reduced efficiency in the operation of the unit. Error symptoms: The car engine does not start. It is possible that the engine starts, but stalls after a few seconds. Increase in fuel consumption. The vehicle is accelerating too slowly. This problem manifests itself up to a certain point, which depends on the degree of contamination or damage to the unit. For example, when driving in low gears, the speed picks up quickly, and when moving to higher gears, slowly. The check engine malfunction icon lights up on the dashboard. |
| P2096 | Incorrect formation of the air-fuel mixture and a malfunction in the fuel balance system. In practice, this problem is usually associated with malfunctions in the oxygen and mass air flow controllers. In the first bank of the engine, a lean combustible mixture is observed. |
Engine error codes list
| 101F01 | Incorrect throttle opening angle pressure. It is necessary to test the operation of the mechanism, it is possible that it sticks in the open or closed position. |
| 138701 | Malfunctions in the operation of the radiator installation. The problem lies in the incorrect position of the screen of the engine cooling radiator. The device may be clogged or worn out. |
| 123 | Thermostat failure. The user needs to diagnose the device and check its wiring. |
| 1613 | Malfunctions in the smooth idle system. There are possible jumps in revolutions up or down, a decrease in the power of the power unit. |
| 2742 | Malfunctions in the formation of the air mixture or misfiring in the first cylinder of the engine |
| 2774 | Incorrect volume of air mass required to form the air-fuel mixture. The amount of air is critically large. |
| 2854 | Malfunction in the variable throttle mechanism. It is necessary to test the operation of the sensor and the assembly itself, perhaps the damper is jammed. |
| 2882 | Lean air-fuel mixture in the cylinders of the power unit |
| 2883 | Incorrect ratio of the air-fuel mixture, problems in the formation were fixed. If the throttle position, air flow and oxygen sensors are operational, then the operation of the control module must be tested. Perhaps, as a result of a software malfunction, the device set incorrect parameters for the formation of an air mixture. |
| 4203 | The verbatim interpretation of the error is “the pre-start state of the glow plug”. It is necessary to check the operation of the devices and replace them in case of wear. If the spark plugs are new, the cause may be a malfunction or software failure of the glow plug control unit. |
| 7B | Programmable Cooling Activation Message |
| 285A | Malfunctions in the variable valve timing system. The problem is a malfunction of the servo control mechanism or directly in the drive device. |
| 274E | Multiple air-fuel misfires reported |
| 279C | The thermostat is malfunctioning (device stuck), but this error code may indicate the following problems: Damage to the wiring or poor-quality signal from the device to the control unit. It is necessary to check the integrity of the power line and make sure that the contact is good. Use of low quality liquid. As a result of the fact that the used consumable cannot perform its functions of cooling the power unit, the microprocessor module regards this as a thermostat malfunction. Clogging of the channels of the cooling system with wear products and antifreeze deposits. To fix the problem, you will have to dismantle all the pipes and clean them. Critically clogged lines must be replaced. Faulty coolant temperature sensor. The problem may appear as a result of a software failure. Mechanical damage to one of the pipes or expansion tank, which led to the leakage of refrigerant from the system. |
| 28A0 | Incorrect throttle position angle. The inlet pressure does not correspond to the normalized data. |
| 29D2 | The microprocessor module registered misfires of the air-fuel mixture in the sixth cylinder of the engine |
| 29D9 | Fuel misfires with reduced fuel volume in the tank. You need to erase the error, refuel the car and test the control unit again. |
| 29E1 | Fuel correction error during the formation of a combustible mixture. It is necessary to diagnose the operation of sensors that affect the compositions – oxygen, air. Also, the problem may be a malfunction of the engine control unit. |
| 2AA9 | General error code indicating a problem with the intake manifold |
| 2AAB | Exhaust system malfunction |
| 2AAC | Variable Intake System 2 Problems Found During Self-Diagnosis |
| 2A6B | Malfunctions in the automatic valve control system, the problem must be sought in the functioning of the servomotor |
| 2A67 | Internal error in the variable valve lift system. With error 2A67, a detailed check of the elements is required for wear and sticking. |
| 2A7E | Reported mechanical valve sticking on Vanos exhaust |
| 2A80 | On BMW E87 and other versions, this code indicates a malfunction in the intake valve system. |
| 2A82 | Mechanical jamming of the intake valves vanos , the course of the devices may be disturbed. With error 2A82 on the BMW E83 and other versions, it is necessary to check the operation of the drive element, if necessary, the valves are changed. |
| 2A83 | The translation from English of this error is “malfunctions in the operation of the Vanos system (inlet), angle correction is outside the normalized range.” The first thing to do is check the operation of the valves. |
| 2A87 | Malfunction in the operation of the solenoid valves of the Vanos system . To fix the problem, the user needs to: clean the Vanos valve or replace it; perform system adaptation; check the oil filter housing, its “nose” may have broken off; to diagnose the actuating unit for jamming and jamming; check the screws fixing the actuator for loosening; perform diagnostics of the control module for software malfunctions. |
| 2A61 | Malfunction of the learning function of the Valvetronics system . The problem should be sought for software malfunctions of the control module. |
| 2A98 | Violation of synchronization of the camshaft with the crankshaft. There may be malfunctions of the corresponding sensors or wear of the timing belt. With Error 2A98, all pulleys should also be checked for defects. |
| 2B68 | Incorrect mass air flow. The problem may be the operation of the flow meter sensor or a malfunction of one of the air lines. In rare cases, the cause is a problem with the engine itself. |
| 2B70 | This error code can have several interpretations: Activation of intake manifold length change. If the error is intermittent, then the fault may be in the servo. Failure is accompanied by a decrease in traction. Short circuit in the operation of the DISA actuator. It is required to check the valves of the device. |
| 2CF8 | Throttle potentiometer malfunction, possible causes of the problem: malfunction of the potentiometer sensor; short circuit inside the winding of the throttle motor; lack of connection or poor-quality throttle contact with wiring; wear of the insulating layer of the cable, which led to a change in the resistance value on the line. |
| 2D06 | Malfunction in the air mass supply system. The problem will lead to failures in the formation of a combustible mixture. Elements to be diagnosed: mass air flow sensor; vacuum line for air leakage; valve cover for possible damage; EGR valve; intercooler ; intake manifold assembly; lines connected to the intercooler ; exhaust system together with the turbine; swirl dampers; air filter. |
| 2EF7 | This error code can have several designations: Thermostat failure. The user needs to check the operation of the device and make sure that it does not jam. The problem may be accompanied by malfunctions of the cooling system and overheating of the power unit. A thermostat malfunction may be due to clogging of the cooling system lines with antifreeze sediment. Nitric oxide sensor error. It is necessary to check the quality of the connection of the device, as well as the absence of contamination on the connector. |
| 29D1 | Fixed misfiring of the air-fuel mixture in the fifth cylinder of the engine. With such a problem, you should first check the spark plugs themselves, and then make sure that they are in good contact with the car’s electrical network, in particular, high-voltage wires. The cause of the problem may be a malfunction of the distributor. |
| 29F4 | The literal translation of the error is “catalytic conversion conversion”. The cause of the problem is a malfunction or poor connection of the catalytic converter. |
| 29F5 | Catalyst blockage, which can be associated with the following problems: regular use of low-quality fuel; natural wear of the node; clogging of the honeycomb filter. With such a problem, the power unit begins to work unstably, a decrease in power and a lack of response to pressing the gas pedal are possible. Check indicator appears on the dashboard Engine , and also increases the consumption of fuel consumed. To check the catalyst for blockage, you can resort to one of the following methods: Shine a light on the device with a flashlight. It is best to drive the car into the pit and dismantle the assembly. Try to smell the clog. If the catalytic converter is clogged, gas with a pungent odor will come out of the exhaust pipe. Put your hand on the muffler. If the node is working properly, the user will feel a strong backlash. If the catalyst is clogged, there will be no serious resistance. |
| 434E | Malfunction in the operation of the damper system, activation of the device is disturbed |
| 4A6E | On the BMW X1 and other versions, this code indicates a malfunction in the functioning of the glow plug installed in the first cylinder of the engine. The power unit with such a problem can start without failure. It is necessary to check the operation of the candle itself, as well as to make sure that it is connected well. |
| 4A63 | Malfunctions of the intake manifold, detailed diagnostics of the unit are required |
| 4B90 | Malfunction in the rail pressure control system when starting the power unit. It is necessary to check the operation of the system sensor, and also make sure that there are no signs of damage to the assembly. |
| 480A | Code 480A can have two decodings: critical contamination of the particulate filter; exhaust gas pressure is unacceptable – the operating parameter is out of the upper or lower range. |
| 4D2D | A malfunction indicating a limitation in the power of the power unit. The problem could be with the injectors or one of the engine sensors. Also, the reason may be a malfunction of the motor control module. |
| 5F78 | If the diagnosis using the INPA system (INPA) showed this code, this indicates that the control unit has not received the status of the engine or the data is invalid. If the microprocessor module works without failures and there are no software errors, then the problem must be sought in a poor-quality connection. |
| A0B4 | Starting the power unit on a car with a working starter. Possible causes of the problem: Faulty CAS or DME module. It is necessary to check both devices and test their connection quality. The problem may be a communication failure due to wear on the wires. Software malfunction of the control unit. It is necessary to test the module itself and its firmware. Starter mechanism malfunction. Perhaps one of the structural elements of the device is stuck. |
| P12BA | Fuel injection time error in the fourth cylinder of the engine – fuel is supplied too early. It is necessary to check the operation of the injectors and wires. If the problem appeared after washing the engine, it is necessary to dry all the contacts on the high-voltage cables. |
| P13B4 | Malfunction of the vanos valve or device mesh. The problem is accompanied by a decrease in the power of the power unit. |
| P14A3 | Particulate filter malfunction. You can try to clean this device if it is clogged, but most likely the filter element will have to be changed. |
| P0102 | Malfunctions in the operation of the flow meter in the car – a critically low signal is sent from the device to the engine control module. The problem is most likely related to the operation of the sensor itself or the wiring. In the first case, the device may become clogged, resulting in less air flow through the controller. In the second case, you should look for closures. |
| P0171 | A lean air-fuel mixture is registered, possible causes of the malfunction: Faulty injectors or their incorrect operation. One of the elements may be clogged, so they will need to be cleaned. To diagnose the injectors, you will need a special stand. Untimely replacement of filters. As a result, foreign particles can enter the engine. Blockage or failure of the mass air flow sensor. To fix the problem, you need to clean the device using a special tool or change it. Malfunction or incorrect operation of the EGR valve, designed to return a certain amount of exhaust gas to the engine cylinder. The device may be clogged. Malfunctions in the intake system or a malfunction of the throttle position controller. If the latter is clogged, it is cleaned. The position of the damper must correspond to the temperature of the power unit or the gas pedal. If the engine is warm, the device should be open, if not, it should be at a certain angle. Malfunction of the absolute pressure controller installed in the intake manifold. Idle speed sensor defective or clogged. Perhaps the problem is a poor tightness of the connection. Problems in the operation of the gas distribution mechanism. It is necessary to check how the marks are set and in what condition the rollers are. If the latter are worn out, they must be replaced. Oxygen controller malfunction. Failure or clogging of the fuel pump. If the error is not random, it will be accompanied by the following symptoms: misfiring in one or more engine cylinders; delay in the response of the power unit to pressing the gas; tripping of the motor; arbitrary stop of the engine when idling; sharp jerks of the motor; the appearance of new noises and sounds during engine operation; unstable operation of the unit as a whole. |
| P0174 | Lean air-fuel mixture, the problem should be sought in the second bank of the engine |
| P0301 | Air-fuel mixture misfiring in the first cylinder of the engine was registered. We must look for the cause and start by testing the oxygen and air flow sensors. |
| P0306 | Misfires in the air-fuel mixture in the sixth cylinder of the power unit |
| P0313 | The powertrain control unit detected a misfire caused by a low fuel level in the tank. With error P0313, you need to make sure that there is enough fuel. |
| P0363 | This combination indicates a misfire of the air-fuel mixture in one of the cylinders of the unit, the number must be specified by the diagnostic method. The problem is the lack of fuel supply. |
| P0430 | Malfunctions of the catalytic converter. The control unit has fixed a problem in the operation of the second bank of the engine – the performance is below the critically acceptable threshold. |
| P1050 | Malfunction in the operation of the Valvetronic system – raising the intake valves. The problem is accompanied by the appearance of the Check indicator on the dashboard, as well as the transition of the power unit to half power mode. The reason may be a malfunction of the system control module or damage to the power line. |
| P1062 (1062) | Malfunction in the operation of the variable valve timing system. The engine control unit can put the power unit into emergency operation mode. It is noted that the shafts do not reach the extreme position. |
| P1083 | Lean air-fuel mixture registered by the engine control unit in one of the engine cylinders. The error indicates a malfunction in the functioning of the first oxygen sensor, but the problem may be related to the control unit. |
| P1250 | A critically high level of air pressure recorded in the intake manifold. First of all, the user needs to test the operation of the absolute pressure controller, as well as its wiring. If these elements are intact, the ECM is subject to diagnosis. |
| P1343 | Combinations P1343 or 1343 report a misfire with a fuel cut-off, recorded in the operation of the first cylinder of the engine. If one of the sensors is faulty, then with such a problem, the Check icons or an exclamation mark in a circle are lit on the dashboard. |
| P1347 | Misfires in the third cylinder of the power unit |
| P1349 | Misfires registered in the fourth cylinder of the power unit |
| R1351 |
Misfire of the air-fuel mixture in the fifth cylinder of the engine with fuel cut-off. Reasons that could lead to this problem: No spark at spark plug. Such a problem can manifest itself as a result of wear on the device, contamination of the electrode, or its malfunction. Also, the absence of a spark appears when the switchgear fails or the armored wire connected to the candle is damaged. The lid on the distributor could crack, which led to moisture getting inside. Lack of fuel in the combustible mixture. This problem is manifested as a result of clogging or failure of the nozzle. The reason may be insufficient fuel pressure, which is associated with a clogged filter or a failure of the pressure sensor. The latter could wear out and leak.
The problem may be a broken exhaust valve or damage to the gasket located in the cylinder head. This leads to a decrease in the level of compression as a result of fuel leakage or its non-combustion. |
| P1353 | This code on the BMW E38, 4X4 and other versions indicates the shutdown of the sixth cylinder of the power unit and the interruption of the fuel supply. The problem lies in the misfire of the air-fuel mixture with fuel cut-off. The reasons that could lead to the appearance of this malfunction: damage or broken wiring; low fuel level in the tank; malfunction of the fuel system; ignition problems – candles, high-voltage wires, switch, coils; lack of tightness in the intake system; mechanical problems in the engine. |
| P3264 | The literal translation of error code P3264 is “a small ratio of calculated and measured air mass.” First of all, it is necessary to check the operation of the mass air flow sensor and clean it if necessary. If this does not help, the device is changed. |
Sensor Fault Codes list
| 214 | Malfunction in the cruise control system. With such a problem, the user needs to check the operation of the speed controller. |
| 2715 | On BMW X1 and other versions, this code indicates a lambda controller installed in front of the catalyst. It is necessary to check the operation of the wiring and the oxygen sensor itself, as well as the heating element. |
| 2781 | The literal translation of the error is “ camshaft position sensor , intake, implausible number of phase fronts.” It is necessary to test the operation of the controller and its wiring, since the problem may be poor contact. Often this error occurs in conjunction with a DTC malfunction – Dynamic traction control . |
| 2782 | General error code indicating problems with the exhaust camshaft position sensor |
| 4390 | Boost air temperature controller malfunction. The problem may be an incorrect signal from the regulator, which is caused by a short circuit or damaged wiring. |
| 6137 | Malfunction of the rotation angle sensor of the electric motor mounted on the steering rack. You should try to reset the error code if the steering wheel as a whole is working fine. |
| 9520 | Error in the operation of the steering angle controller. It is necessary to check the sensor on the steering column and make sure that its wiring is working. The problem may be poor contact of the device with the mains. |
| 9913 | Faulty airbag controller installed on the passenger side. First of all, you need to check the wiring of the device under the seat, often its breakage or disconnection of the contact is the cause of the malfunction. |
| A6CF | A malfunction in the AUC sensor of the air conditioning system. This device is designed to determine the amount of harmful substances in the air and is a sensitive component that fixes with two thin wires. Most likely, the device is clogged and needs to be cleaned. |
| 2AC2 | Malfunction of the oxygen controller located in front of the catalyst device. The user needs to test the lambda probe in detail and start the test with wiring. |
| 2A47 | The valve travel position controller is faulty or malfunctioning. The problem may be the lack of a signal coming from the regulator. |
| 2A59 | Malfunction of the position sensor of the Valvetronic system . With error 2A59, it is required to test the operation of the eccentric shaft position controller in detail. |
| 2A63 | Error in the motor of the Valvetronic system . With error 2A63, it is necessary to check the engine for short circuits and the absence of visible defects. |
| 2A94 | Malfunction of the crankshaft position controller. This problem is accompanied by difficulties when starting the engine or the impossibility of starting it. The problem may be the failure of the sensor itself or damage to the power and control wiring. |
| 2B15 | Intake manifold differential pressure controller malfunction. The cause of the problem should be sought in the reliability errors of the signals coming from the regulator. The problem is with the sensor itself or its wiring. |
| 2B63 | Malfunctions in the exhaust camshaft position controller |
| 2B67 | Invalid data coming to the control unit from the air flow meter. The cause of the problem must be sought in the controller itself or its connection. If the mass air flow sensor provides incorrect data, this will affect the formation of the air-fuel mixture in the cylinders of the power unit. The engine will not operate at full power, a decrease in traction is possible. |
| 2CA2 | Malfunction of the heating element of the oxygen sensor. The problem may be damage to the wiring or a short circuit in the power supply and control of the heater. It is necessary to test the device and the oxygen controller itself. |
| 2CA8 | Faulty oxygen controller heating element. Function failures may be due to software problems or wiring damage. |
| 2C7F | A lean air-fuel mixture was detected in the second bank of the engine. The problem is caused by a malfunction in the operation of the oxygen controller No. 2. It is necessary to change the lambda probe, and if after that the problem remains, then perform wiring diagnostics and ring the cable. |
| 2C9D | Error in the heating system of the second oxygen controller. The user needs to check the sensor wire and the operation of the heating element. |
| 2C9E | On the “Americans” and “Germans” BMW, this code indicates a malfunction of one of the oxygen controllers. It is necessary to test the wiring of devices, as well as make sure that the contacts on the power and connection connectors are intact. |
| 2C9C | Malfunction in the heating system of the oxygen controller located in front of the catalytic converter. The cause of the problem may be in the wiring or a broken power line. The sensor itself or its heating component may be faulty. |
| 2D32 | Malfunction in the operation of the controller, which fixes the level of pressure in the intake manifold. The problem may be accompanied by jumps in idle speed. The problem may be due to damage to the intake manifold. |
| 2F9A | Ambient air temperature controller malfunction due to the absence of a sensor signal. The problem must be sought in the regulator or wiring, if the device is operational. It is recommended to check the resistance level on the sensor contacts and if it does not correspond to the normalized parameters, then change the device. |
| 25c8 (25c800) | Malfunction in the operation of the exhaust gas backpressure controller installed in the exhaust tract. |
| 27B8 | Differential pressure controller error |
| 27C3, 10179 | Malfunction of the engine fluid level temperature sensor. If the problem is a short circuit, the instrument panel may display information about the overheating of the power unit, although in fact the engine is running normally. It is necessary to check the operability of the device and its wiring. |
| 287D | There is no signal from the pressure controller located in the fuel rail. The user needs to test the operation of the sensor and make sure that it is in good contact with the wiring. |
| 296A | Malfunctions of the lambda oxygen sensor or lack of signal from the device located in front of the catalyst device |
| 3F01 | Charge Air Pressure Controller Malfunction |
| 3FF0 | Malfunctions in the operation of the flowmeter. The set airflow volume does not correspond to the actual one. It is necessary to test the operation of the sensor and clean it if necessary. Damaged or failed flowmeters are replaced with new ones. Errors 3FF0 and 4262 often appear together, but the latter on diesel engines indicate a malfunction in the preheaters. |
| 3FF1 | Malfunctions in the air flow meter. The ratio of the calculated and measured mass in the cylinders of the unit during the formation of a combustible mixture is incorrect. Malfunctions can be caused by a malfunction in the boost pressure control system or by a small turbocharger . If the sensor readings deviate from the normalized parameters, then the flow meter should be checked and cleaned in case of contamination. |
| 3F57 | Malfunction of the boost pressure sensor |
| 4B10, 4B11 | These errors indicate a malfunction in the ride control controller. The problem is that the sensor is sending too high or too low a correction value to the microprocessor module. The cause should be sought in the wiring or internal malfunctions of the controller. |
| 4CAE | Faulty EGR valve controller. The signal from the sensor is out of range. It is necessary to check the sensor for internal short circuit, as well as possible damage to the wiring. |
| 4F6A | Malfunction of the oil temperature sensor in the gearbox |
| 5EBA | Failed to receive a signal or malfunction of the steering angle controller. The data coming from the controller is not within the range of acceptable values. On BMW E92 and other versions, this error is accompanied by an icon on the dashboard in the form of a yellow steering wheel. |
| 5EB1 | Steering angle controller malfunction. The cause of the problem may be a poor-quality connection of the controller or no signal, since the error is related to the power supply of the controller. |
| 5E40 | Malfunctions in the steering angle controller. The signal coming from the device to the microprocessor is unreliable or does not correspond to the normalized parameters. First of all, it is necessary to diagnose the steering column switch and make sure that its contact is not damaged. It is possible that the connector has broken off. |
| 507B | Malfunction in the parking brake, the control unit reports the impossibility of parking. The problem may be the handbrake sensor or its poor contact, so this device is diagnosed first. |
| 614A | Malfunction of the steering angle sensor. It is necessary to test the controller located on the steering column. The cause of the problem may be a malfunction associated with the system control unit. |
| 63ED | Steering rack controller malfunction. It is necessary to check the quality of the contact of the sensor with the mains, and also to make sure that there is no short circuit on the line. The sensor itself changes only when assembled with the steering rack, so if it is faulty, the assembly will have to be changed completely. |
| 9C54 | Malfunction of the air pollution controller of the air conditioning system. This sensor is designed to automatically turn on the airflow recirculation system in the cabin if the amount of harmful substances outside exceeds the norm. It is necessary to check the wiring of the sensor and the resistance on the line of its connection. |
| P14A2 | Malfunctions in the operation of the exhaust gas controller, incorrect data is received from the sensor. There may also be malfunctions in the particulate filter system. |
| P110D | Throttle position controller malfunction. The data coming from the controller is out of range. It is necessary to check the sensor itself, as well as its wiring and contacts. |
| P111B | Air flow meter malfunction. Problems with this sensor will result in air-fuel mixture formation errors. This will cause incorrect operation of the engine, up to a decrease in power and its arbitrary stop. |
| P115C | Malfunctions in the mass air flow sensor. The control unit notes that an incorrect signal is being sent from the device to the microprocessor, or the sensor cannot pass a sufficient amount of air flow through itself into the engine cylinders. |
| P0036 | Malfunction in the heating device of the oxygen sensor 2, installed in the first bank of the engine. If the controller itself is intact, then the problem should be sought in the wiring of the regulator. |
| P0056 | Malfunction in the operation of the heated oxygen controller No. 2 installed in the second bank of the engine. The problem lies in the operation of the control line of the heating device or the sensor itself. It is necessary to test the wiring and connection quality, as well as the electrical circuit for the appropriate resistance value. |
| P0101 | Malfunctions in the mass air flow controller. The readings coming from the sensor are outside the allowable operating range. It is necessary to test the wiring and the quality of the connection of the device to the mains. |
| P0135 | Malfunction in the operation of the heated oxygen controller 1 installed in the first bank of the engine. The cause of the problem is a malfunction in the control of the heating system, which may be due to damage or faulty wiring. |
| P0235 | Code 0235 appears when there is a malfunction in the boost controller A of the turbocharger unit. The problem may be due to a malfunction in the drive supercharger or damage to the power line connected to it. |
| P0335 | Malfunctions in the functioning of the crankshaft position controller . The problem is the lack of a signal, which may be due to the failure of the regulator or damage to the power and control cable. |
| P0340 (0340) | Malfunction of the camshaft position sensor. The cause of the problem may be due to the absence of a signal, which is associated with damaged wiring. The user needs to check the device marked A. |
| P0365 | Breakdown or absence of a signal coming from the controller In the position of the camshaft . Problems in the operation of the first bank of the engine. The cause of the malfunction may be related to wiring or poor contact. |
| P0366 | Malfunction in the operation of the controller In the position of the camshaft, the control unit recorded problems in the operation of the first bank of the engine. The signal coming from the controller is out of the allowed operating range. |
| P0500 | Malfunctions in the operation of the vehicle speed controller. It is recommended to check the ABS sensors (ABS) mounted on the wheels, as well as their contact with the car’s electrical network. The problem may be clogged connectors or oxidized outputs on them. If the problem is no signal, a wiring diagnostic is performed. |
| P0505 | This code appears when there is a malfunction in the idle speed control system. The problem may be a sensor malfunction or poor device contact. |
| P0720 | Malfunctions in the output shaft speed controller. The control unit notes that the problem may be a power line failure caused by a damaged or broken cable. Also, the problem may be in the controller itself or a short circuit in the control wire. |
| P1180 (118001) | The code translates to “Heated Oxygen Sensor 2 Bank 1 Slow Response” |
| P1189 | Malfunctions in the operation of the mixture composition regulator marked 1, installed in the second bank of the engine. The readings from the device are out of range. |
| P2626 | Malfunction of the heated oxygen controller number 1 installed in the first bank of the engine. If the sensor itself is working, then you need to test the wiring and check the resistance. The problem may be an incorrect pump current and a break in the power and control lines. |
| R2766 | Combination 2766 appears when the input shaft speed controller fails. Also, this code can report a malfunction of the turbine shaft speed controller B. The signals from the sensors are outside the allowable normalized ranges. |
| P3263 | Malfunctions of the mass air flow sensor |
Electrical faults codes
| 0F | Damage or breakage of the electrical circuit of the side airbags |
| 5A | Momentary power failure, possible electrical or digital CAN bus failure |
| 1B5102 | General electrical error code, you need to look for short circuits |
| 1d2404 | Breakage of the cable supplying the programmable thermostat. The device will not be able to activate at the right time, which will lead to insufficient cooling or overheating of the power unit. The cause of the problem must be sought in the wiring or poor-quality contact. Perhaps the thermostat itself is faulty, then the device will have to be changed. Also, the problem may be damage to one of the lines of the cooling system. |
| 213901 | Literally, this error translates as “power management – consumption reduction is active.” It is necessary to test the operation of the battery, as well as the fuse box. Possible short circuit on the contacts of one of the connectors. |
| 801c20 | This code on BMW E32 and other versions indicates a critical discharge of the battery, the control unit reports the need to recharge the device |
| 6011 | Internal error, exact fault not indicated. It is recommended to start looking for a problem with the safety devices and relays installed in the mounting block. Perhaps the problem lies in the failure of one of them or a short circuit in the socket. You should also diagnose the microprocessor control module of the power unit. |
| 7D/A1 | Malfunctions in the functioning of the electric fan. It is necessary to dismantle and disassemble the device, the problem often lies in damage to the cable on the block connecting the device to the mains. |
| A0C1 | Terminal 50 output fault. Check wiring and battery. |
| A559 | Code A559 literally stands for “power off at terminal 30.” With such a problem, you need to test the battery and replace it: You need to visually check the battery case. It must not show signs of damage or defects that could lead to electrolyte leakage. Run battery diagnostics. If the battery voltage is critically low, it must be replenished by recharging. The discharge problem may be due to the destruction of the plates located inside the device. It is not possible to fix such a problem. Clean the terminal clamps. Often a power failure is due to oxidation of the battery outputs. Check the electrolyte level in the battery banks. If the working fluid is not enough, its volume must be replenished by adding distilled water. But you need to do this before recharging the battery with a charger. You should also diagnose the generator set. The problem may be the wear of the structural components of the unit or the drive strap. |
| B1330 (9330) | This error occurs when there is a short circuit in the passenger door |
| E204 | Faulty K-CAN bus cable. A detailed diagnosis of the wiring connected to the control unit is required. If no malfunctions are found in the work of the electrician, the microprocessor is subject to diagnostics for software problems. |
| E714 | Incorrect battery voltage 3BE reported. The problem may be a malfunction of the CAN bus. |
| 2ACB | Malfunctions of the main relay or failure of the device. With such a problem, the car engine usually does not start. The user needs to check the operation of the device, as well as make sure that it is in good contact with the wiring and that there is no damage to the connector. If there were power surges in the car’s electrical network, the problem could lead to the melting of the legs of the part. |
| 2A38 | Malfunction in the drive of the Valvetronic systemassociated with a broken wiring or a poor-quality signal. The problem may be the slow movement of the valve lift mechanism. First of all, you need to check the wiring, as well as the eccentric shaft controller. If the problem is the presence of oil in the block of the device, then this regulator must be replaced. |
| 2DEB | A malfunction in the power management system, an electrical problem and is related to the functioning of the CAS module. It is necessary to check the wiring connected to the controller and diagnose all contacts. |
| 2DED | The literal translation of this code from German is “power management, unsatisfactory quiescent current.” The problem must be sought in the wiring, ring all the wires connected to the motor control unit. It could also be the alternator or battery. |
| 2E83 | Malfunction of the electric coolant pumping device. The engine control unit has detected that this unit is operating at reduced power. The problem may be the failure of one of the relays or a malfunction of the pump motor. Most likely, a short circuit appeared in the winding of the device. It is necessary to test the node and its contacts, as well as the wiring. |
| 2E85 | Malfunction in the operation of the pumping device of the engine cooling system. A lack of communication is reported, which may be caused by cable damage or poor contact of the pumping device with the mains. The problem may be the failure of the pump motor. |
| 2F71 | Malfunctions in the fan of the ECU control module of the control electronics. This problem may be accompanied by incorrect operation of modules or software errors. Possible causes of the problem: malfunction of the electric motor of the device itself, which led to the breakdown of the fan; short circuit in the internal winding; damage or clogging of contacts on the connector for connecting the device; short circuit of the wires supplying the fan; deterioration of the insulation on the control cable, which led to a change in the resistance on the line. |
| 28D7 | Malfunctions in the communication system with the generator set. The cause of the problem may be poor contact of the device with the mains or a malfunction of one of the constituent elements of the generator, for example, a voltage regulator relay. |
| 43E2 | Malfunction of the electrical circuit that feeds the throttle actuator. The problem may be an open wire or poor contact between the mechanism and the network. It is possible that the throttle motor itself is faulty. |
| 44E2 | Generator set malfunction. The cause of the problem should be sought in the wiring or the device itself. The problem may appear when the drive belt is worn or the tension rollers fail. |
| 9AFF | Malfunction of the battery safety output activation system |
| 9CB9 | A short circuit has been registered on the MIL line. The problem may lie in poor contact, but first of all, you need to check the short circuit of the line to the voltage source. |
| 9CBC | The microprocessor module detected a short circuit at the output of the power line for the control indicator. There may be a broken wire or a shorted cable to the battery. |
| 9C53 | Malfunction associated with the functioning of the electric motor of the left rear layered flap. The problem may be a malfunction related to the functioning of the servo. You can try to redirect these devices. |
| 93B2 | Safety battery terminal failure. It is necessary to test the integrity of the output and the quality of the crocodile connection to it. The problem may be damaged wires. |
| P0412 | Damage or breakage of the power line connected to the solenoid valve A for the supply of air flow to the outlet |
| P0444 | Evaporative accumulator solenoid valve failure due to broken wiring or lack of contact. Need to test the circuit multimeter . |
| P0597 | With this error, the engine control unit reports problems associated with the operation of the thermostat heating element control mechanism. The problem is related to a broken wiring, so you need to check the contacts first. |
| P1057 | Malfunctions in the operation of the electric motor of the drive device for changing the valve timing. The problem is damage or breakage of the power supply voltage. |
| P1619 | A critically low signal has been registered on the cooling system thermostat control line. If the thermistor sensor itself is intact, then the problem must be sought in the wiring. Perhaps the thermostat is stuck in one of the positions and this problem is not permanent, but periodic. |
| R1620 | Critically high pulse registered on the cooling system thermostat control line |
| P1622 | This control code reports an electrical failure or a break in the thermostat power supply wiring. There may be malfunctions in the cooling system, up to engine overheating. |
Immobilizer Error Codes
| 015 | Malfunctions in the operation of the engine blocker. It is possible that the device does not receive a signal from the electronic key due to desynchronization or a defective battery in the transponder. |
| 128 | Exceeded signal from the immobilizer |
| 2F44 |
The code translates as “EWS intervention”. This means that the control unit has detected immobilizer malfunctions . It is necessary to check the following elements of the power
unit locking system: transponder key – the device must use a workable battery; immobilizer control unit for software malfunctions or disconnected contacts; antenna module of the engine blocking system for damage and wiring quality; the presence of foreign electronic objects near the immobilizer , as they can cause interference that blocks the signal. |
| 9D12 | General error code of the standard anti-theft system |
Error codes of electronic modules and communication systems
| 8D | ATS communication signal failure |
| 149 | CAN bus communication error between anti-lock braking system modules and DSC unit |
| 6031 | Emergency release detected. First of all, the user needs to diagnose the power unit control unit. |
| 28CE00 | Malfunction associated with the operation of the glow plug control module. The device does not send a signal to the microprocessor module via the LIN bus. |
| CC ID | Warning the car owner about the discharge of the battery and the possible disconnection of part of the electronic equipment. It is necessary to check the performance of the battery and make sure that the generator set is functioning correctly. |
| A558 | Unknown error in the CAN interface. The problem may be poor bus contact or power surges in the vehicle’s electrical network. |
| A0B5 | CAS bus communication error. The cause of the problem is that the microprocessor module does not receive a signal about the speed of movement. If the error is intermittent, it may be due to a poor signal quality or wear of the insulation on the controller connection wire. |
| A3C1 | Malfunction of the FRM device – footwell module. The problem is the lack of communication with the engine control unit. With such an error, it is necessary first of all to check all the safety elements and the block with the relay, perhaps the problem is a poor contact or short circuit. |
| CD9304 | The microprocessor module detected a communication failure between the control unit and the BS bus. A detailed check of all components of the digital interface and the quality of the computer connection is required. |
| CED4 | Fuel pump module malfunction. If the device is out of order, starting the engine will be impossible. |
| CF17 | Lack of communication with the power unit control unit – no signals are received from the device to the EGS module. It is necessary to test the operation of the wiring and the quality of the contacts. |
| 2DCA | Communication error with the EGS system control module. It is necessary to check all the wires and connectors connected to the engine control unit. |
| 2E7C | The verbatim interpretation of this error is “data transfer interface by serial binary code”. Most likely, the problem is the failure or absence of a signal from the DME module. It is necessary to check the quality of the connection and make sure that there are no breaks in the power line. The problem may be in the closure of the contact elements. |
| 27A4 | Malfunction of the EWS digital interface connected to the DME unit |
| 281D | Disruption of communication with the BSD generator. The signal coming from the device does not correspond to the normalized parameters. |
| 299B | No signal or incorrect pulse coming from the battery sensor. Malfunction of the IBS regulator, the device is located on the negative terminal of the battery. The problem may be a poor connection between the device and the dashboard. |
| 4A63 | Malfunction in the operation of the central lock, it is required to check the control module of the device |
| 4A74 | Malfunctions in the preheating system. It is reported that there is no communication with the glow plug warm-up control module. |
| 49A6 | Failure of the Lin-Bus bus. A detailed check of the wiring between the control modules is required. If the cables are intact, the cause must be sought in the battery. |
| 51AE | Lack of communication with the brake light switch or the rear optics do not work. Possible causes of the problem: Failure of one of the safety devices or relays. The user needs to test all the elements located in the mounting module under the hood or in the car. Poor contact with the sensor installed on the brake pedal. It is necessary to check the device and the quality of its connection. The cause of the problem is often clogged contacts on the switch. Damage to the wire connected to the rear optics. It is necessary to test the cable, perform its continuity multimeter . Failure of the light source installed in the optical device. |
| 5F1D | Control unit data is not transmitted via the CAN bus. It is necessary to check the integrity of the contacts on the interface and make sure that the wires are not damaged. |
| 5F62 | Malfunction in the operation of the digital interface system connected to the steering column control unit. System operation data is not sent to the microprocessor module. The cause of the problem must be sought in the wiring or poor-quality contact. |
| 42DE | Communication failure with BSD control module – glow plugs. If the block itself is faulty, this will lead to an incorrect start of the engine, in some cases it will not be possible to start it. |
| 41ED | Internal malfunction in the DDE module, the problem should be sought in cyclic authentication |
| 51AC | No communication via CAN bus. The problem must be sought in the wiring or operation of the motor control unit. The reason may be poor contact or disconnection of the connector from the motor control module. |
| 51A7 | The signal from the control module by the power unit is not received via the digital CAN interface. It is required to check all pads and contacts on the control unit. |
| 55C3 | Literally, this error translates as “adjustment of the emergency run is disabled, the torque from the DSC is not set.” The user needs to perform diagnostics of the operability of the switching center located in the steering column. A possible cause may be a faulty steering wheel angle sensor. |
| 55s4 | Lack of communication with the CAN interface. The problem is damage to the wiring or poor-quality contact with the car’s electrical network. Power surges are possible, which led to communication failures. |
| 601D | No signal with vehicle parking brake |
| 600E | Internal malfunction in the powertrain control unit |
| 6DEC | On BMW E 38 and other versions, this code indicates failures in the transfer of current data. It is necessary to check the operation of the control unit, as well as the communication buses. |
| 9CC1 | Lack of communication between the external rear-view mirror on the driver’s side and the control unit. It is possible that the regulator itself, located on the center console, is faulty. Since the error is electrical, the Check icons may not appear on the tidy. It is necessary to check the wiring connection to the rear-view mirror adjuster. |
| 9E33 | Malfunction in the operation of the parking system, failures recorded in the operation of the left rear parking sensor . The reason may be a broken wire or poor device contact. |
| 9CC5 | No signal with LIN interface. The user needs to test the integrity of the wiring and the quality of the bus contact with the on-board network. |
| 93BA | Malfunctions in the passive safety system. With such an error, it is recommended to check the communication between the engine control unit and the Airbag system control device . A corresponding malfunction icon appears on the dashboard of the car. The following problems could also cause this error: damage to the wiring connected to the sensors; malfunction of pretensioning elements or their power lines; damage to the contacts on the power connector of the passive safety control unit; squib malfunction. |
| 93FC | On BMW F20 and other versions, this code indicates a battery failure or poor communication with the device. The error indicates the positive battery cable, you need to check its contact and eliminate oxidation from the terminal clamp. |
| P0600 | Faulty CAN data bus |
Transmission errors
| 420531 | Transmission related fault. The transmission may go into speed limit mode. |
| 5087 | On BMW E32 and other versions, this code means a malfunction in the automatic transmission selector controller. The problem is the operation of the manual shift mechanism or torque converter. |
| 5088 | The general error code in the operation of automatic transmission (automatic transmission), the following components are subject to diagnostics: box control unit for defects and software problems; module wiring and its contacts; torque converter of the transmission unit and its petals; lubrication in the device for the absence of deposits. |
| A0B1 | Incorrect position of the gear lever of the gearbox. The error may appear on a cold one and disappear after warming up or restarting the engine. The user needs to test the operation of the sensors, as well as the transmission control unit. You will also need to diagnose consumables – oil in the box. If a decrease in the liquid level or the appearance of wear products in it is recorded, the lubricant is replaced. |
| A82E | Malfunctions in the operation of the blocking system E. The brake itself is faulty, it is necessary to check the operation of the system in detail. |
| A833 | On BMW X3 F25, E32 and other versions, this code indicates a malfunction of the transmission gear switch |
| CDA7 | Malfunction of the reverse gear monitoring system. The cause of the problem may be malfunctions associated with the functioning of the sensor or transmission. You also need to pay attention to the operation of the DME module. |
| CF33 | There is no signal from the control module of the transmission unit. Possible causes of the problem: Failure of the box control unit, including software problems. It is necessary to test the device and make sure that the problem is not related to moisture on the unit. If so, then the “device” is subject to replacement or drying of the board. Malfunction of the electrical component of the car. It is necessary to check the quality of the module connection and make sure that it is in good contact with the network. Malfunctions of the battery or generator. Both devices are subject to diagnostics. The problem could be power surges. |
| F10 | Code F10 reports a malfunction in the drive system. The problem must be sought in the wiring or mechanism sensors. Also, the reason may be a malfunction of the control module. |
| F30 | Error in the operation of the drive – full power is not available to the car. It is necessary to check the assembly and its wiring, as well as to diagnose the operation of the gearbox control unit. |
| 2DB6 | Malfunction in the operation of the switch for the speed sensor |
| 3EFC | The automatic transmission sensor is malfunctioning, the connection of the device may be poor. If the sensor and wiring are intact, the engine and transmission control unit is subject to diagnosis. The reason may be a software malfunction. |
| 4A63 | Mismatch of transmission and motor control modules |
| 4E87 | Faulty automatic transmission solenoid. It is necessary to check the operation of the solenoid for positive, as well as all the connectors of the transmission unit. |
| 4F85 | Transmission malfunctions, the microprocessor reports a malfunction in the gear ratio. It is necessary to check all the elements of the box. |
| 4F89 | Malfunctions in the gear ratio control system. The problem lies in the mechanism for shifting 3-4 gears. It is necessary to make a complete diagnosis of the transmission unit, if necessary, remove and disassemble the box. It may be necessary to replace structural elements – sensors, solenoids, torque converter. |
| 4F8A | Malfunction in the shift control system. The control unit indicates an incorrect gear ratio of 4-5. It is necessary to dismantle the mechatronics and clean or flush it together with the solenoids. It may be necessary to sort out the box with the replacement of damaged components. |
| 4F8C | Malfunction in the mechanism for controlling the gear ratio of shifting 6-5 gears. It is necessary to test the sensors and the transmission control unit. The fault may lie in the selector itself. |
| 4F8D | Malfunctions in the control system of the gear ratio of gear shifting 5-4. After pressing the gas pedal, the error may manifest itself by turning on the emergency mode of the transmission unit. The problem may be the use of low-quality oil and clogging of the filter device. It is necessary to check the quality of the consumable and replace it in the presence of precipitation and deposits in the liquid. |
| 4F81 | Malfunctions in the control system of the transmission clutch A. It is necessary to check the operation of the box, first of all, the quality of the oil and its volume should be tested. If there is a lack of fluid in the unit, the lubricant must be added or replaced. The cause of the leak must be determined. |
| 5DEA | Malfunctions in the transfer case associated with a violation of the temperature balance. In other words, the problem is overheating of the transmission unit. Most likely, the consumable is to blame, in particular, its poor quality or deterioration in performance. |
| 5F2F | Malfunction of the mechatronics electronic control module – vehicle gearbox. It is possible to activate the emergency mode of the transmission. |
| 51AD | The EGS automatic transmission control unit does not receive data from the DSC control module. It is noted that the information does not reach the device via the digital CAN bus. It is necessary to test the digital interface or the DSC module. With such a problem, the transmission can go into emergency operation mode. |
| 51B0 | No brake signal. The impulse does not correspond to the normalized indicators. The cause of the problem may be a malfunction of the transmission control unit. |
| 54C4 | Malfunction of the transfer case or servomotor. It is necessary to test both nodes and their wiring, the problem may be in the closure of the contact elements. Error 54C4 may be the impossibility of calibration. |
| 56C5 | Error in the operation of the automatic transmission unit. Activation of the solenoid valve B of the gearbox – the device is stuck in the open position. In addition to the valve itself, problems can be as follows: Solenoid failure resulting in low torque converter pressure. Malfunctions in the box control unit. The use of poor quality oil or grease has lost its working properties. The problem may be related to fluid leakage, which is caused by damage to the unit. Malfunction of one of the sensors. |
| 54C6 | Code 54C6 – a message from the control unit about wear in the use of gear oil that has lost its performance due to aging. If the lubricant has been replaced for a long time, then the oil must be changed. |
| 54C8 | It is reported about the problems fixed in the functioning of the transfer case. The problem is the classification resistance of the servo. It is necessary to check the wiring and ring the cable with a multimeter. |
| 578E | Deteriorated condition of the oil in the car gearbox. It is necessary to check the quality of the transmission fluid for traces of deposits and sediment in it. If there are wear products in the oil, the lubricant must be changed, it is also recommended to clean or replace the transmission filter. |
| 5F3A | Malfunction in the transfer case. It is necessary to test the quality of the connection of the unit with the clutch. The problem may be a malfunction in the ECU module. |
| 5F39 | Transfer case control unit blocked or not functioning properly. Possible disconnection of the contact from the module or software failure. |
| 5F42 | Malfunction in the CAN bus of the control module of the automatic transmission. The problem lies in the lack of communication, respectively, the cause must be sought in damage to cables or oxidation of connectors on microprocessors. |
| 9S69 | Transmission clutch failure |
| P0733 | Incorrect gear ratio in the third gear of the box. It is necessary to check the operation of the torque converter device, the transmission control unit and all sensors. |
| P0748 | Failure of the solenoid valve for controlling the pressure of the working fluid of the gearbox. The problem is electrical, in this case, the connection and contacts are diagnosed. |
| P2731 | Transmission fluid pressure control solenoid valve F malfunction. First of all, you should check the integrity of the electrical circuit. |
| P2779 (2779) | Malfunctions in the operation of the gear selector (selector). The signal coming from the device is outside the allowable normalized range. A detailed check of the quality of connection and communication is required. |
Anti-lock braking system self-diagnosis errors
| 1 | Malfunctions in the ABS hydraulic system |
| 3 | Ignition timing error |
| 4, 5, 6, 7 | Malfunction in the operation of one of the speed controllers or inlet valves of the anti-lock system |
| 14 | Malfunctions or no valve relay communication signal |
| 15 | Malfunctions recorded in the operation of the pressure pumping device of the system |
| 17, 18 | Malfunctions of the front ABS sensors installed on the left wheel of the car. The cause of the problem may be a lack of contact or damage to the wiring. |
| 22 | The signal coming from one of the speed controllers does not correspond to the normalized parameters and values |
| 25 | Malfunction in functioning of switches of stoplights |
| 27 | The idle speed pulse is not supplied to the engine control unit |
| 30, 31, 32,34 | Malfunction of one of the sensors installed on the wheels of the car |
| 35 | Incorrect signal or lack of an impulse to the control unit about the brake fluid level |
| 39 | Electrical error in the servomotors |
| 40 | Gas valves potentiometer error. Checking devices is required, as well as their wiring. |
| 61 | Malfunction of the central wheel locking system |
| 63 | General fault code in the operation of the processor control unit for the ABS system |
| 65 | Rear right sensor malfunction or no communication signal coming from the device |
| 67 | General ABS error |
| 75 | Brake system malfunction indicator defective or bad signal with bulb |
| 92 | Malfunction or incorrect reading from the pump pressure controller |
| 103 | The stop signal switch is not functioning properly or is out of order. Contact verification and wiring ringing is required. |
| 104 | Angle Controller Malfunction |
| 106 | Malfunction or failure of the lateral acceleration controller |
| 113 | Malfunction of the return pump of the anti-lock brake system |
| 115 | ABS control module internal error |
| 151 | ABS control unit coding error |
| 183, 184 | Internal malfunction or displacement of the vehicle steering angle controller |
| 5DF5 | On BMW 318TI and other versions, this code indicates an internal malfunction in the operation of the anti-lock braking system control module. |
| 5E1F | Malfunctions in the anti-lock braking system and lack of communication between the ABS EBV and DSC modules. With such a problem, the transmission unit of the car can go into emergency operation mode. It is noted that the DSC system is active, but the brake adjustment does not work. The brake fluid level is normal, but the pressure in the system is not recognized. |
| 5E19 | Lack of communication on the CAN bus between the control unit and the control module of the anti-lock braking system. It is necessary to check the wiring and the controller itself for the absence of software malfunctions. |
| 5E24 | Malfunction of the speed controller located on one of the front wheels. The cause of the problem may be a problem with the pressure controller in the anti-lock system. It is necessary to test the sensor and its connection. |
| 5F1A | The message about the limitation of the power of the power unit associated with a malfunction of the anti-lock braking system. The problem may be a malfunction of the steering angle controller or an overheating brake. In both cases, it is necessary to test the sensors installed on the steering column or the brake pedal. |
Description of errors Bosch Motronic 1-1, 1-3
| 01 | Malfunction of the microprocessor control module of the motor. It is necessary to test the software of the device and flash it if necessary. The problem may be due to poor contact between the unit and the car’s electrical network. |
| 03 | Malfunctions of the fuel pump relay or the cable through which it is connected. If this element is working, then it is necessary to test the pumping device. |
| 04 | Failure of the idle speed sensor or its incorrect operation led to malfunctions in the operation of the power unit |
| 05 | Malfunctions associated with the operation of the adsorber valve. The problem may also lie in its wiring. |
| 07 | The engine flow meter is damaged or malfunctioning. If the sensor is clogged, it will cause air-fuel mixture formation errors. |
| 10 | The oxygen controller is sending an incorrect signal to the microprocessor control module. If the sensor and its contacts are intact, then the problem may be the wear of the insulating layer on the conductor or the cable short circuit. |
| 15 | General fault indication code, need to perform a more detailed check of the car |
| 16 | Malfunctions of the injectors installed in the first and third cylinders. The problem may be due to a malfunction of the electrical circuits. |
| 17 | Malfunctions associated with the functioning of the nozzles located in cylinders 2 and 4. It is necessary to check the devices themselves and their wiring. |
| 23 | Damage to the line connected to the heating element of the oxygen controller |
| 28 | Breakage of the lambda probe or the absence of a signal emanating from it. If the control unit cannot determine the presence of an oxygen sensor, this may indicate a loss of communication as a result of wiring damage. |
| 29 | Problems related to the functioning of the speedometer controller. It is possible that the sensor installed on the instrument panel is faulty. It is necessary to check the quality of the contact of the device with its wire. |
| 33 | Malfunction of the transmission torque converter |
| 37 | Critically high voltage in the mains, which is more than 16 volts. Possible causes of the problem: Bad battery. The user should check the device for damage that could lead to electrolyte leakage. It is possible that the battery is discharged as a result of the destruction of the plates located inside. Failure of the generator set or poor contact of the device with the network. It is necessary to check all components of the unit, including the voltage regulator relay and the rotary mechanism. It is possible that the contact simply disconnected from the device. Damaged or worn drive strap. It is necessary to check the integrity of the product, as well as pulleys and tension rollers. Use of electrical equipment, the technical parameters of which do not correspond to the characteristics of the electrical network. |
| 43 | Malfunctions or failure of the exhaust gas adjustment potentiometer. This error can only appear in vehicles that are not equipped with a catalytic device. |
| 44 | Malfunctions or failure of the air temperature sensor. The problem may be a lack of signal due to a damaged power cable. |
| 45 | The coolant temperature sensor is out of order or not working correctly. This problem can cause the engine to overheat. It is necessary to check the device itself, as well as its contact with the mains. |
| 51 | The control unit registered an incorrect position of the ignition timing |
| 52, 53 | Malfunction of the controller of the extreme position of the throttle. It is necessary to check the sensor itself, as well as its wiring. |
| 54 | Mechanical malfunction in the automatic transmission torque converter clutch. With such an error, the transmission unit may go into emergency operation mode. The problem may be due to the wear of the structural elements of the device or a software malfunction of the box control unit. |
| 100 | In Russian, in BMW X3, X5 4×4, E70 and other models, this combination indicates a malfunction in the operation of the switching device of the ignition system. It is necessary to check the distribution unit, to make sure the integrity of the device case. Often the problem is associated with damage and moisture ingress. |
| 101 | Malfunctions of the power unit, first of all it is recommended to check: Oil level and volume in the engine. If there is not enough lubricant, it is added. In the event that the consumable contains traces of deposits, sediment or wear products, a fluid replacement with a complete drain is required. Motor control unit and its connection. If the wiring is intact, then the cause of the problem may be a software malfunction of the microprocessor. It is unlikely that it will be possible to fix such a problem on E38, E46, X6 and other versions, since the module will need to be re-flashed. The operation of manifold devices and sensors, including oxygen, mass air flow and lubricant pressure. Alignment of marks on camshafts. The cause of the problem may be the wear of the pulleys and damage to one of the teeth of the device. The integrity of the timing belt. It is possible that the product is worn out and needs to be replaced. |
Description of Bosch Motronic 1-2, 1-3, and 1-1 Flashing Codes
| 01 | Failure of the mass air flow sensor or damage to its power line |
| 02 | Oxygen controller malfunction. With such an error, you must also check the wiring and operation of the heating element of the device. |
| 03 | Failure or incorrect operation of the antifreeze temperature sensor. The problem may be a poor contact of the device with the network or the absence of a signal to the microprocessor. |
| 04 | Malfunction in the controller of the extreme position of the throttle. |
Description of errors Bosch Motronic 1-7 and 3-1
| 000 | No malfunctions in the car |
| 001 | Failure of the car’s fuel pump relay or damage to the cable connected to it. It is also possible that the contacts in the fuse block socket are oxidized or clogged. If the fuel pump relay fails, starting the engine will be difficult or impossible. |
| 002 | Malfunction of the idle controller or damage to its power line. With such a problem, the engine speed may be unstable, an arbitrary stop of the motor is possible. |
| 003 | Malfunctions of the nozzle installed in the first cylinder of the engine. Such a problem will lead to violations in the formation of the air-fuel mixture, which will cause unstable engine operation. |
| 004 | Malfunction of the nozzle installed in the third cylinder of the power unit. The problem may be due to poor contact or damage to the power line connected to the device. |
| 005 | Failure or incorrect operation of the nozzle located in the second cylinder of the power unit |
| 006 | General fault code related to the operation of the injector control system or their wiring |
| 012 | Malfunctions in the functioning of the controllers of the extreme position of the throttle |
| 016 | Failure or absence of a signal from the engine crankshaft position controller |
| 018 | The control unit registered a malfunction associated with the operation of the amplifying device on the 18th contact of the electronic control unit |
| 019 | Malfunction of the microprocessor module. It is necessary to check the quality of the connection and the wiring connected to the control unit. The problem may be the prolonged exposure to moisture on the device and the formation of condensation inside. To eliminate the cause, you will need to remove, disassemble the module and dry the board. |
| 023 | Malfunctions in the ignition system of the second cylinder. Misfires in the air-fuel mixture are possible, which will lead to unstable engine operation. First you need to test the operation of the spark plug installed in the second cylinder of the power unit. In addition to candles, the reasons that could lead to this problem are as follows: No spark at spark plug. The problem may manifest itself as a result of wear on the device or a breakdown of the distribution mechanism. It is also possible to damage the high voltage cable connected to the spark plug. If the lid is cracked on the distributor, this will lead to moisture getting inside. Breakage of the exhaust valve or wear of the gasket located in the cylinder head. This leads to a decrease in the level of compression as a result of fuel leakage or its non-combustion. Lack of fuel in the air-fuel mixture. This problem is manifested as a result of clogging or breakage of the nozzle. The reason may be insufficient fuel pressure, which is associated with a clogged filter or failure of the pressure sensor. The latter could wear out and leak. |
| 024 | A similar problem, only related to the third cylinder of the engine. It is necessary to check the operation of the coil and distributor. |
| 025 | Malfunction of one of the nodes or the ignition system as a whole. The problem concerns the first cylinder of the power unit. |
| 026 | The microprocessor module of the motor is not receiving power. It is necessary to check the quality of the connection of the device, and also make sure that there is no damage to the block connector. The problem may be related to the operation of the generator set or battery. |
| 029 | Malfunctions in the engine idle sensor |
| 031 | Malfunctions in the operation of the nozzle installed in the fifth cylinder of the power unit |
| 032 | Failure or lack of connection of the nozzle located in cylinder 6 of the engine. The problem may be the absence of a signal, which is associated with damage to the wiring. |
| 033 | Malfunction of a nozzle of the fourth cylinder of the engine |
| 036 | Malfunctions in the operation of the carbon adsorber valve |
| 037 | Problems in the operation of the lambda probe oxygen sensor. The controller number will have to be calculated independently by the diagnostic method. The problem is accompanied by unstable operation of the engine, since during the formation of the air-fuel mixture there is much more or less air than required. The reason may be poor contact of the device with the mains or a malfunction of the heating element. |
| 041 | Malfunctions in the functioning of the flow meter – mass air flow sensor. It is necessary to check the wiring of the regulator and its contact with the mains. The cause of the problem may be that the sensor is clogged with debris. To fix this problem, you will need to clean the device using a special tool. |
| 046 | General fault code in the operation of the engine control unit |
| 048 | Malfunctions associated with the compressor device or the electrical system of the air conditioning system. With such a problem, the air from the deflectors may be too humid. |
| 050 | Malfunctions in the ignition system of the fourth cylinder of the engine |
| 051 | Malfunctions in the functioning of the ignition system of the sixth cylinder. It is necessary to check the candles, the coil, as well as the distribution unit. The problem may be damage to the distributor housing. |
| 054 | Malfunction of the microprocessor module |
| 055 | Malfunctions in the functioning of the switching device of the ignition system or its wiring, poor-quality contact is possible |
| 062 | Malfunctions in the operation of the electronic drive or throttle mechanism. If this code is permanent, and not random, then the problem is accompanied by unstable operation of the motor, including reduced traction and power dips. |
| 064 | Incorrectly set ignition timing, the problem will lead to engine detonation. The error is relevant only for vehicles equipped with automatic transmission. |
| 067 | Malfunction of the crankshaft position controller. With such a problem, the engine will not start or will start with difficulty. |
| 070 | Malfunctions in the functioning of the oxygen controller |
| 073 | Malfunction of the speedometer sensor or its power line |
| 077 | Malfunctions in the operation of the intake air temperature controller |
| 078 | Malfunction or absence of a signal coming from the coolant temperature regulator |
| 081 | Malfunctions recorded in the operation of the alarm system, possible causes of the problem: low battery in the remote control or alarm key; poor contact of one of the components of the anti-theft complex with the car’s electrical network; conflict in the operation of the standard engine blocker and the car alarm immobilizer installed additionally; malfunction of the control unit or short circuit in the mounting module with fuses. |
| 082 | On BMW E39, X5 E53, E34 and other versions, the code indicates malfunctions in the traction control system |
| 083 | Problems related to the functioning of the suspension control system |
| 085 | With such an error on the BMW E38, E60, E90 and other versions, malfunctions in the operation of the compressor device of the air conditioning system or its electrical circuit are reported. With such a problem, the power of the climate control system is significantly reduced, more noisy operation of the air conditioner is possible. |
| 100 | Malfunctions in the operation of the electronic control unit or its electrical circuit |
| 200 | Malfunctions in the operation of the motor control module, the problem may be its poor contact with the mains |
| 201 | Oxygen Controller Problems |
| 202 | General fault code for the engine control unit. The problem may be a damaged wiring or a software malfunction of the module. |
| 203 | Malfunctions associated with the functioning of the primary ignition power line |
| 204 | The engine control unit receives an incorrect signal from the throttle control mechanism |
| 300 | Engine malfunction. The user will have to look for the cause of the problem on their own. |
Description of errors in the MS40 control unit
| 1, 2, 3, 5, 6 | Malfunctions in the operation of one of the engine cylinders. A detailed diagnosis of all components of the car’s ignition system is required. |
| 8 | Malfunction in the functioning of the switching device of the car parking system |
| 9 | Air conditioning compressor defective or intermittent |
| 10 | The pressure sensor of the climate control system is out of order or is malfunctioning |
| 12 | No signal coming from the vehicle speed sensor |
| 14 | Communication error with EGSDME modules |
| 15 | EWS system malfunction |
| 27 | Malfunction of the idle speed sensor |
| 52 | Malfunction of the fuel pump or the absence of a signal coming from the device. It is necessary to check the operation of the mechanism, make sure the integrity of the wiring and safety elements, as well as the relay. |
| 53 | Oxygen Controller Heating Element |
| 62 | The ignition signal resistor is out of order or the device does not receive a signal to the microprocessor |
| 68 | The airflow controller is defective or not working properly. It is possible that the signal does not reach the control unit from the device, which is due to a wiring malfunction. If the sensor is clogged, it must be cleaned with a special tool. |
| 75 | Incorrect voltage registered on the control and power lines of the heating elements of oxygen regulators |
| 81 | The coolant temperature sensor has failed or is malfunctioning |
| 84 | Camshaft controller malfunctioning or malfunctioning |
| 85 | The intake air temperature controller has failed or is giving incorrect signals to the microprocessor. In the latter case, wiring and contact diagnostics are required. |
| 97 | Tank vent valve defective |
| 98 | Idle speed sensor defective or damaged wiring |
| 100 | General internal fault code of the control unit. It is necessary to check the wiring and the quality of the connection of the device. The cause of the problem may lie in the failures associated with the functioning of the software component of the microprocessor. |
| 204 | Malfunction of the resistor element of the ignition system |
| 206 | Mechanical malfunction in the operation of the Vanos system of intake valves |
| 207 | The microprocessor module does not receive a vehicle speed signal |
MS41 Block Errors
| 1, 2, 3 | Malfunction of one of the ignition coils installed in the engine cylinders |
| 8 | Air mass meter defective or clogged |
| 10 | The antifreeze temperature controller is out of order or its contact with the mains is of poor quality |
| 11 | The fuel pressure regulator in the car’s gas tank is out of order, the problem is in the operation of the evaporator system |
| 14 | Malfunctions in the functioning of the intake air temperature controllers |
| 16 | Malfunction of the compressor device of the air conditioning system |
| 19 | Malfunctions in the intake valve activation system |
| 22, 23, 24 | Malfunction of the third, sixth or fourth engine nozzle. The problem should be sought in the elements of the ignition system. |
| 26 | No signal coming from the engine control unit. It is necessary to check the wiring and contacts, the quality of the connection of the device to the electrical network of the machine. |
| 29, 30, 31 | Malfunctions associated with the functioning of the ignition coils installed in the first, third or fifth cylinders |
| 35 | Airflow Intake System Relay Malfunction |
| 38 | Malfunctions in the functioning of the clutch switch, an incorrect signal is given from the device |
| 41 | Incorrect signal from the intake air position controller |
| 42 | Malfunction of the multi-function switch installed on the steering wheel |
| 43 | Malfunctions in the operation of one of the buttons installed on the multifunction steering wheel. It is possible to detach a contact from a control. |
| 49 | Incorrect torque data is being sent to the control module |
| 55 | Malfunction of the heating element of the lamb probe installed in the second bank |
| 62 | Air Intake System Switching Valve Malfunction |
| 64 | Data received by the control unit from the temperature controller |
| 68 | Tank outlet valve malfunction |
| 69 | The fuel pump relay is out of order or the device does not receive a signal to the microprocessor module. A detailed contact check is required. If there are power surges in the car’s on-board network, this problem can cause the contacts on the legs of the device to burn. |
| 71 | DME control module internal fault |
| 72 | Also a malfunction related to the operation of the DME control unit. The problem may be software in nature. |
| 79 | Faulty heating element of the oxygen controller installed in the first bank of the engine |
| 82 | Malfunctions in the functioning of the starter solenoid |
| 84 | Malfunction of preliminary vanos-valve |
How to diagnose an error?
BMW error diagnosis technology with OBD1 systems:
- On a car with the ignition on, the gas pedal is squeezed out five times for five seconds.
- The “Check Engine” indicator will light up on the instrument panel when the test begins. The light will turn on for five seconds and then turn off for half a second.
- Then the indicator will turn on again for 2.5 seconds, and after a pause of 2.5 seconds, it will start displaying fault codes.
The most accurate options for checking a BMW car are using a computer or a diagnostic scanner. But to implement this method, the user needs to prepare in advance special equipment for testing or a laptop with software installed on it.
The algorithm of actions when conducting a check using a tester or a computer:
- The user connects the computer to the diagnostic output in the vehicle.
- The ignition is activated and the engine is started.
- The software starts up on the laptop. If a scanner is used for verification, then it must be turned on.
- The testing process begins. Depending on the vehicle model, the firmware version of the control unit and the laptop software or the scanner version, the procedure can take from several minutes to an hour.
- Upon completion of the verification process, a list of errors found in the operation of the BMW car will appear on the laptop or tester screen. The user needs to decipher these codes and, in accordance with the information received, repair the units and assemblies. After the vehicle is restored to working order, combinations of problems are deleted from the memory of the control unit.
Dashboard test for E36 cars 1992-1999:
- On the control panel, the daily mileage reset button, located on the odometer, is pressed and held.
- The key is turned to position I in the ignition lock. An inscription will light up on the dashboard screen indicating the beginning of the test – Test 01.
- The trip mileage reset button on the vehicle is released. The control combination will start issuing diagnostic cycles, alternately indicating the internal code of the car, VIN code, software version, dashboard number, etc.
Dashboard test for Z3 vehicles is performed as follows:
- On the control panel, press and hold the reset button for the daily mileage.
- In the ignition switch, the key is turned to position I. An inscription should appear on the instrument panel screen indicating the start of the diagnosis.
- Then comes the moment of unlocking. The button for resetting the daily mileage in the car is held until the message “Test 15” appears on the display.
- The odoment key is pressed for a few seconds. This control element should be held until the word “Off” appears on the shield.
- After that, inscriptions and numbers will begin to appear on the dashboard, indicating the technical parameters of the power unit, including the amount of oil in the engine and the temperature of the coolant.
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