General information about self-diagnostics of a control system by the Motronic engine. BMW the 5th E28/E34 series (from 1981 to 1993 of release)
Repair of BMW E28 and series E34 from 1981 to 1993
1. Cars of the BMW brand of 5-series
2. Engine
3. Cooling system
4. Power supply system
5. Ignition system
6. Control systems of the engine and decrease in toxicity of the fulfilled gases
6.1. General information
6.2. General information about self-diagnostics of a control system by the Motronic engine
6.3. Removal and installation of the electronic control unit (ECU)
6.4. Information sensors
6.5. System of ventilation of a case (PCV)
6.6. Catching system паров gasoline (EVAP)
7. System of production of the fulfilled gases
8. Coupling
9. Manual box of gear shifting (RKPP) and automatic transmission (AT)
10. Transmission line
11. Steering and suspension bracket
12. Brake system
13. Body
14. Control body sizes
15. Heater and air conditioner
16. System of onboard electric equipment
17. Routine maintenance of the car
18. Size table and adjusting data
19. Schematic electric circuits
20. Governing bodies and operation receptions
21. System of onboard diagnostics - a principle of functioning and codes of malfunctions
 








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6.2. General information about self-diagnostics of a control system by the Motronic engine

The control unit Motronic systems (computer) has the built-in system of self-diagnostics which defines malfunctions of sensors of system and registers them in memory as codes of mistakes. However, the procedures given in Heads the Power supply system and System of ignition can be used for individual check of components and Motronic system sensors. If it does not allow to find a cause of defect, it is necessary to send the car to the dealer of BMW who has a necessary diagnostic equipment for reading from the control unit of codes of mistakes.

Further you will have a choice or to make repair independently, or to leave repair to the dealer of BMW.


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6.1. General information
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6.3. Removal and installation of the electronic control unit (ECU)