Opel Astra, Zafira

Since 1998 of release

Repair and car operation



Opel Astra
+ Cars Opel Astra and Zafira
+ The operation manual
+ Routine maintenance
+ The engine
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
- Onboard electric equipment
   Specifications
   Search of causes of failures of an electric equipment
   Safety locks - the general information
   The relay - the general information and check of serviceability of functioning
   Removal and installation of switches
   Replacement of lamps of external lighting and alarm devices
   Replacement of lamps of internal lighting devices
   Removal and installation of external lighting/alarm devices
   Adjustment of a direction of optical axes of headlights
   Removal and installation of a combination of devices
   Removal and installation of components of the panel of devices
   Removal and installation прикуривателя
   Removal and installation of small horns of a horn
   Removal and installation of levers (leads) of screen wipers
   Removal and installation of elements of a drive of screen wipers
   Removal and installation of components of system of washing of glasses
   Check of serviceability of functioning and regenerative repair of a heater of back glass
   Removal and audiosystem installation / the navigating block
   Removal and installation of elements of remote control by audiosystem functioning
   Removal and installation of loudspeakers
   Removal and installation of the aerial of a radio receiver
   Anticreeping system and system иммобилизации the engine - the general information
   The gauge of speed of movement of the car (VSS) - the general information
   System of additional safety (SRS) - the general information
   Removal and installation of elements SRS
   Schemes of electric connections - the general information
   + Basic schemes of electric connections



The relay - the general information and check of serviceability of functioning

The general information

For giving of power supplies or a management signal on some of electric power consumers in the car (such as components of system of injection of fuel, a horn, a starter, the fan (cooling systems, antifog headlights and so forth) are used the relay. Actually the relay represents the electric key providing short circuit ВВ of a contour on НВ to a signal. In case of a relay exit out of operation there is a refusal of functioning of the corresponding consumer. The relay most part is placed in located under the panel of devices and in an impellent compartment of the car assembly blocks. The description of check of serviceability of functioning of the relay is resulted more low. The failed relays are subject to replacement.


The constructive scheme of the typical 4-contact relay with numbering of plugs and planimetric connections


The constructive scheme of the typical 5-contact relay with numbering of plugs and planimetric connections

Check

 PERFORMANCE ORDER

  1. If it is not possible to find out a way of inclusion of the relay in a corresponding electric contour under schemes of electric connections (the Section of the Scheme of electric connections see - the general information), it is necessary to remember that the approach to check of any relay basically is identical in all cases (see further).
  2. In the majority of the relay the management contour is always connected to two of contact plugs. At giving on these plugs NV of pressure the current starts to circulate on a winding of management of the relay therefore there is a short circuit of the big contacts of a working contour of the consumer of the electric power. Other plugs are plugs working (ВВ) a contour.
  3. For the purpose of simplification of identification of plugs of the relay explanatory marks are usually put on its case with the image of the scheme of connection (illustrations the Constructive scheme of the typical 4-contact relay with numbering of plugs and planimetric connections and the Constructive scheme of the typical 5-contact relay with numbering of plugs and planimetric connections see).
  4. Before relay removal make sure that the corresponding contour is disconnected.
  5. Connect the wire-crosspiece equipped with a safety lock between one of plugs of management of the relay and the positive plug of the battery. By means of the second wire-crosspiece earth the second plug of management, - the relay should publish click. Some relays demand obligatory observance of polarity of connection, - if click has not occurred, try to change polarity of connection of plugs of management.
  6. At the connected wires-crosspieces check up conductivity presence between contour plugs VV, having connected an ohmmeter according to the key scheme on the relay case.
  7. At negative result of check replace the relay.