Opel Astra A

1991-1998 of release

Repair and operation of the car



Opel Astra A
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Ventilation and heating
+ 5. Power supply system
+ 6. System of decrease in toxicity
+ 7. Coupling
+ 8. Transmissions
+ 9. Half shafts
+ 10. Brake system
+ 11. Suspension bracket and steering
+ 12. Body
- 13. Electric equipment
   13.1. Technical characteristics
   13.2. Search of a source of malfunction in system of electric equipment
   13.3. Block of safety locks
   13.4. Safety locks
   13.5. Relay
   13.6. Ignition lock
   13.7. Switches on a steering column
   13.8. Switch of headlights of head light
   13.9. Buttons on the dashboard
   13:10. Switch of the alarm system
   13:11. Switch of a sound signal
   13:12. Switch of fires of a stoplight
   13:13. Switches of the bulbs joining when opening a door
   13:14. Switch of a bulb of illumination of a luggage carrier
   13:15. Switch of a bulb of illumination of a glove compartment
   13:16. Replacement of bulbs (external lighting)
   13:17. Replacement of bulbs (internal lighting)
   13:18. External lamps
   13:19. Adjustment of headlights of head light
   13:20. Engine of adjustment of headlights of head light
   13:21. Instrument guard
   13:22. Elements of an instrument guard
   13:23. Hours / multipurpose display
   13:24. Additional system of the prevention
   13:25. Elements of additional system of the prevention
   13:26. On-board computer
   13:27. Lighter
   13:28. Horn of a sound signal
   13:29. Speedometer drive rope
   13:30. Levers of screen wipers
   13:31. Engine of screen wipers of a windshield
   13:32. Engine of a screen wiper of back glass and connecting mechanism
   13:33. Elements of system of washers of wind and back glass
   13:34. Elements of system of washers of headlights of head light
   13:35. Radio receiver / stereoplayer
   13:36. Loudspeakers
   13:37. Radio antenna
   13:38. Elements of anticreeping system
   13:39. Safety airbag
   13:40. Safety airbag module
   13:41. A steering wheel (with the safety airbag)
   13:42. Contact module of the airbag of safety
   13:43. Module of the airbag of safety of the passenger
   13:44. Arms of fastening of the module of the airbag of safety
   13:45. Safety airbag electronic control unit
+ 14. Electrical circuitries







13.2. Search of a source of malfunction in system of electric equipment

GENERAL INFORMATION

For simplification of search of sources of malfunction at the end of this Chapter schemes of electric equipment are provided. Study them before diagnostics.

Malfunctions in system of electric equipment are usually caused by the simple reasons, such as bad connection, the fused safety lock or the bad relay. Check these elements first of all.

Check of tension

Lack of tension on an element of electric equipment is most often caused by bad connection. Check the site of a chain between the accumulator and an element of electric equipment for integrity by means of the voltmeter.

Search of short circuit

For verification of short circuit remove a safety lock and connect a control bulb or the voltmeter to plugs of connection of a safety lock. Tension should not be. Move the checked wire here and there. If the bulb lights up, so there is a short circuit. The same inspection can be carried out on any element of electric equipment, even the switch.

Check of reliability of grounding

Disconnect the accumulator and connect one wire of a control bulb with the power supply to "weight", and "mass", the second to a wire, of the checked element. If the bulb lights up, so grounding as it should be.

Check of integrity of a chain

For check of integrity of a chain use a control bulb with the power supply. If the bulb lights up, so a chain as it should be.

Search of a gap in a chain

If on a chain there does not pass current, most often it is caused by the unreliable or oxidized connection. Shake a suspicious wire or the socket of connection - it can restore conductivity.