BMW Description of Errors Bosch Motronic

01

Microprocessor motor control module malfunctioning. It is necessary to test the software of the device and perform its flashing if necessary. The problem may be due to poor contact of the unit with the car's electrical network.

03

Malfunctions in the fuel pump relay or the cable through which it is connected. If this element is serviceable, then it is necessary to test the pumping device.

04

Damage to 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 be its wiring.

07

Engine flowmeter is damaged or malfunctioning. If the sensor is clogged, this will lead to errors in the formation of the air-fuel mixture.

10

The oxygen controller supplies an incorrect signal to the microprocessor control module. If the sensor and its contacts are intact, then the problem may lie in the wear of the insulating layer on the conductor or in the short circuit of the cable.

fifteen

General fault indication code, a more detailed check of the vehicle must be performed

16

Failures in the nozzles installed in the first and third cylinders. The problem may be due to a malfunction of the electrical circuits.

17

Malfunctions associated with the operation of 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

Damage to the lambda probe or the absence of a signal coming from it. If the control unit cannot determine the presence of an oxygen sensor, this may indicate a loss of communication due to damage to the wiring.

29th

Problems with the speedometer controller. Perhaps the sensor installed on the dashboard is faulty. It is necessary to check the quality of the contact of the device with its wire.

33

Gearbox Torque Converter Failure

37

Critically high voltage in the mains, comprising more than 16 volts.

Possible causes of the problem:

1. Bad battery. The user must check the device for damage that could lead to electrolyte leakage. The battery may have been discharged as a result of the destruction of the plates located inside.
2. 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 rotor mechanism. Perhaps the contact simply disconnected from the device.
3. Damaged or worn drive strap. It is necessary to check the integrity of the product, as well as pulleys and tension rollers.
4. The use of electrical equipment whose technical parameters do not match the characteristics of the power grid.

43

Malfunctions or failure of the exhaust gas adjustment potentiometer. This error can occur only in vehicles that are not equipped with a catalyst device.

44

Malfunctions or malfunction of the air temperature sensor. The problem may be the absence of a signal due to damage to the power cable.

45

The coolant temperature sensor is malfunctioning or malfunctioning. With this problem, the engine may overheat. It is necessary to check the device itself, as well as its contact with the mains.

51

The control unit has detected an incorrect position of the ignition timing

52, 53

Malfunction in 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 clutch torque converter clutch automatic transmission. With this error, the transmission unit may go into emergency operation. The problem may be due to deterioration of the structural elements of the device or a software malfunction of the box control unit.

100

In Russian, in BMW X3, X5 4x4, E70 and other models, this combination indicates a malfunction in the switch device of the ignition system. It is necessary to check the distribution unit, to make sure the integrity of the device housing. Often the problem is related to its damage and ingress of moisture.

101

Failures in the operation of the power unit, it is recommended first of all to check:

1. Oil level and its volume in the engine. If there is insufficient lubricant, it is added. In the event that the consumable contains traces of deposits, sediment or wear products, it is necessary to replace the liquid with a complete drain.
2. Motor control unit and its connection. If the wiring is intact, then the cause of the problem may be a microprocessor software malfunction. It is unlikely that it will be possible to fix such a problem on your own on E38, E46, X6 and other versions, since a module re-firmware will be required.
3. The operation of collector devices and sensors, including oxygen, air mass flow and lubrication pressure.
4. Combination 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.
5. Timing Belt Integrity. The product may wear out and need to be replaced.

01

Failure of the mass air flow sensor or damage to its power line

02

Oxygen controller malfunction. With this 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 the poor contact of the device with the network or the lack of a signal entering the microprocessor.

04

Malfunction in the controller of the extreme position of the throttle.

000

No malfunctions in the car

001

Failure of the car fuel pump relay or damage to the cable connected to it. It is also possible oxidation or clogging of contacts in the socket of the fuse box. 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 in the nozzle installed in the first cylinder of the engine. Such a problem will lead to disturbances 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 associated with the operation of the injector control system or their wiring

012

Malfunctioning Throttle Controls

016

Failure or absence of a signal from the engine crankshaft position controller

018

The control unit has registered a malfunction associated with the operation of the amplifier device at the 18th contact of the electronic control unit

019

Microprocessor module malfunction. 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. Possible misfire in the air-fuel mixture, which will lead to unstable operation of the engine. First, you should 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 the appearance of this problem are as follows:

1. No spark on the spark plug. The problem may occur as a result of wear of the device or breakdown of the distribution mechanism. Damage to the high-voltage cable connected to the plug is also possible. If the cover is cracked on the distributor, this will cause moisture to enter.
2. Damage to 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 leakage of fuel or its non-combustion.
3. The lack of fuel in the air-fuel mixture. This problem appears 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 a 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 does not receive power. It is necessary to check the connection quality of the device, as well as to make sure that there is no damage on the block connector. The problem may be related to the operation of the generator set or the battery.

029

Malfunction of the engine idle sensor

031

Malfunctions in the nozzle installed in the fifth cylinder of the power unit

032

Failure or lack of connection to the nozzle located in the cylinder 6 of the engine. The problem may be the absence of a signal that is associated with a damaged wiring.

033

Malfunction of an injector of the fourth cylinder of the engine

036

Coal adsorber valve malfunction

037

Problems in the operation of the oxygen sensor of the lambda probe. The controller number is to be calculated independently by the diagnostic method. The problem is accompanied by unstable engine operation, since the formation of a fuel-air mixture of air is much more or less than what is required. The reason may be a poor contact of the device with the mains or a malfunction of the heating element.

041

Failures 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 the clogging of the sensor with debris. To eliminate this malfunction, you will need to clean the device using a special tool.

046

Common DTC for the engine control unit

048

Malfunctions associated with the compressor unit or 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 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

Microprocessor module malfunction

055

Failures in the functioning of the switch device of the ignition system or its wiring, poor-quality contact is possible

062

Malfunctioning electronic drive or throttle mechanism. If this code is permanent, and not random, then the problem is accompanied by unstable engine operation, including reduced traction and power failures.

064

Incorrect ignition timing, the problem will cause engine detonation. The error is relevant only for vehicles equipped with an automatic transmission.

067

Malfunction of the crankshaft position controller. With such a problem, the engine will not start or will start with difficulty.

070

Malfunctioning oxygen controller

073

Malfunction of the speedometer sensor or its power line

077

Malfunctions in the intake air temperature controller

078

Malfunction or absence of a signal from the coolant temperature controller

081

Malfunctions recorded in the operation of the alarm system, possible causes of the problem:

• low battery in the remote control or key remote control alarm;
• poor contact of one of the components of the anti-theft system with the vehicle’s power grid;
• a conflict in the work of a standard engine blocker and an auto-alarm immobilizer installed additionally;
• malfunction of the control unit or short circuit in the mounting module with fuses.

082

On cars BMW E39, X5 E53, E34 and other versions, the code indicates malfunctions in the traction control system

083

Suspension problems

085

With such an error, BMW E38, E60, E90 and other versions report malfunctions in the operation of the compressor of the air conditioning system or its electrical circuit. 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

Failures in the functioning of the control module of the motor, the problem may be its poor contact with the mains

201

Oxygen controller malfunctions

202

Common DTC for the engine control unit. The problem may be damage to the wiring or software malfunction of the module.

203

Failures associated with the operation of the primary ignition line

204

The engine control unit receives an incorrect signal from the throttle control mechanism

300

Engine malfunction. The user will have to search for the cause of the problem on their own.