E39 series BMW 5
since 1996-2001 of release
Repair and car operation
+ Maintenance instruction
+ Current leaving and service
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
- Onboard electric equipment
Diagnostics of malfunctions of onboard electric equipment - the general information
Chain breakers (thermal relays)
Check of filament lamps
Check of electric motors
Check of electric switches
Check of switches of lamps and electric motors
Check of sensors
Check of the electric motor of a screen wiper
Check of a heater of back glass
Removal and switch installation
Removal and installation of the sensor of temperature
Removal, installation and check of a sound signal
Initialization of remote control by the uniform lock
Adjustment of range of light of headlights
Removal and installation of the electric motor of adjustment of range of light
Replacement of safety locks
Arrangement of safety locks
Replacement of filament lamps
Removal and headlight installation
Adjustment of headlights
Removal and installation of a back lamp
Removal and installation of the block of the dashboard
Replacement of lamps of the block of the dashboard
Removal and installation of the switch of signals of a turn/screen wiper
Removal and radio receiver installation
Replacement of brushes of a screen wiper
Removal, installation and adjustment snuffled a stekloomyvatel
Removal and installation of a drive of a screen wiper/cover
Removal and installation of the electric motor of a screen wiper
Check and replacement of the pump of a stekloomyvatel
Work with electric circuits
+ electric equipment Schemes
+ System of onboard diagnostics
Work with electric circuits
For possibility of determination of malfunction or additional installation of electric devices existence of electric circuits is necessary. The electric chain should be surely closed. Insufficiently, for example, if tension, and other plug is brought to the positive plug (+) headlights (-) is not closed on weight.
Therefore the cable of weight of the storage battery (-) is connected to weight. In some cases it appears such communication with weight insufficiently and the corresponding consumer has a direct connection with weight. Isolation of such communication has, as a rule, brown color. Separate electric chains can have switches, the relay, safety locks, measuring devices, electric motors and other electric elements. That the specified elements are correct for attaching, connecting cables have various colors, and contacts have numbering.
For convenience of work with car electric equipment all system is divided into separate chains. The electric elements cooperating with each other, are shown on the general scheme.
As a rule, at the top of the scheme positive contacts (+), and below weight contacts are given (-). Connections of weight are carried out usually through a body or through an additional wire from a point of the weight which is available on a body.
Designations of the major plugs:
Plug 15. Receives a food from the ignition lock. A food moves only at the included ignition. Cables have black color or black with color strips.
On the following example rules of reading an electric circuit are shown.
1) Designation of plugs, here plug 30.
Designations of the major elements following:
A-holder safety lock/device management/module