Description and check of work of system of the central blocking of doors. 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
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
16.1. General information
16.2. The general information on search of malfunctions in electric chains
16.3. Removal and installation of the storage battery
16.4. Check of a condition and replacement of wires of the battery
16.5. General information on safety locks
16.6. General information on the relay
16.7. General information about charge and precautionary measure system at work with it
16.8. Check of system of a charge
16.9. Removal and generator installation
16.10. Replacement of a regulator of tension
16.11. Check and replacement of brushes of the generator
16.12. General information about system of start of the engine and a precautionary measure
16.13. Starter check on the car
16.14. Removal and starter installation
16.15. Removal and installation of the traction relay
16.16. Check and replacement of breakers of indexes of turn and alarm system
16.17. Removal and installation of switches on a steering column
16.18. Removal and installation of the lock of ignition
16.19. Removal and radio receiver installation
16.20. Removal and aerial installation
16.21. Removal and installation of components of an instrument guard
16.22. General information on the panel of alarm lamps of a reminder on term of service (SI)
16.23. Replacement of lamps in head headlights
16.24. Adjustment of a beam of head headlights
16.25. Removal and installation of the case of a head headlight
16.26. Replacement of lamps
16.27. Removal and installation of the motor of a screen wiper of windscreen / glass of a door of a back
16.28. Check of work and repair of a heater of back glass
16.29. General information on auxiliary system of safety (SRS)
16.30. Description and check of work of a control system by speed (темпостата)
16.31. Description and check of work of system of the central blocking of doors
16.32. Description and check of work of system of electric window regulators
16.33. Diagnostics of malfunctions of a suspension bracket of back wheels
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
 








16-31-opisanie-i-proverka-raboty-sistemy-centralnojj-blokirovki-dverejj.html

16.31. Description and check of work of system of the central blocking of doors

The central system of blocking of doors puts in action drives of blocking of the doors, established on each door. The system consists of switches, drives and conducting. Diagnostics is limited to simple check of contacts of conducting and drives on existence of insignificant damages which can be easily eliminated. Such checks treat:

  • Check of safety locks of system and/or the chain breaker (where it is available).
  • Check of wires of switches about damage of wires and weakening of contacts. Check of switches on conductivity.
  • Remove the panel (panels) of a covering of a door and check contacts of conducting of a drive on easing or existence of damages. Examine drive rods to make sure that they not погнуты and are not damaged. The drive can be checked, having quickly connected a food from the battery. Strong click will specify that the electromagnetic valve works normally.

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16.30. Description and check of work of a control system by speed (темпостата)
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16.32. Description and check of work of system of electric window regulators