BMW 5 series E39
Since 1996-2001 of release
Repair and car operation
+ The maintenance instruction
+ Current leaving and service
+ 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
+ Onboard electric equipment
+ Electric equipment schemes
- System of onboard diagnostics
Data on diagnostic devices
The description of system of onboard diagnostics
Method of reading of blinking codes by a lamp “Check up the engine” (It is possible on some models)
System of onboard diagnostics
Data on diagnostic devices
Check of serviceability of functioning of components of systems of injection and decrease in toxicity of the fulfilled gases is made by means of a universal digital measuring instrument (multimeter) (see an accompanying illustration). Use of a digital measuring instrument preferably for the several reasons. First, on analogue devices it is difficult enough (at times, it is impossible), to define result of the indication to within the 100-th and thousand shares while at inspection of the contours including in the structure electronic components, such accuracy takes on special significance. The second, the reason that fact is not less important that the internal contour of a digital multimeter, has high enough impedance (internal resistance of the device makes 10 мОм). As the voltmeter is connected to a checked chain in parallel, accuracy of measurement by that above, than the smaller current will pass through actually device. The given factor is not essential at measurement concerning high values of pressure (9 12), however there is defining at diagnostics of elements giving out low-voltage signals, such, as, for example, a l-probe where it is a question of measurement of shares of volt.
Parallel supervision of parametres of signals, resistance and pressure in all chains of management is possible by means of a splitter included consistently in a socket of the block of engine management. Thus on the switched off, working engine or during car movement, measurement of parametres of signals on splitter plugs from what the conclusion about possible defects becomes is made.
For diagnostics of electronic systems of the engine, automatic transmission, ABS, SRS special diagnostic scanners or testers BMW DIS, MoDIC (programmed from PC) can be applied. Besides, it is possible to apply scanners and specialised diagnostic analyzers to this purpose, for example CS 1000, Bosch FSA 560 (www.bosch.de), KTS 300, Sun 2013, or the usual personal computer with a special cable and the program browser OBD (for example, address on a site www.carsoftinternational.com/).
Some scanners, besides usual operations of diagnostics, allow, at connection with the personal computer, to unpack stored in memory of the block of management basic schemes of an electric equipment (if are put), to program anticreeping system, to observe signals in car chains in real time.
II for diagnostics of your car you can download the free version of browser OBD from our site arus.spb.ru or on www.obd-2.com; www.obd-2.de
Reading written down in memory of system of self-diagnostics of codes of malfunctions on some models can be made also on the indicator “check up the engine” on a control panel.
The scanner only reads out the malfunctions brought memory and clears memory of malfunctions. The tester in addition can make active and show the current data.
Firm ToolRama devices also can be applied to diagnostics, for example, Inc. (3500 NW Boca Raton Blvd., Boca Raton, Florida, 33431, USA 1 877 866 5726 - 561 750 4511 - 561 338 8447 FAX) with cartridges for certain model of the car.
All cartridges for a tester can be used and in the scanner. Thus functions will be limited only by reading and memory clearing.
Firm ToolRama devices can be applied to diagnostics, Inc, for example. (3500 NW Boca Raton Blvd., Boca Raton, Florida, 33431, USA 1 877 866 5726 - 561 750 4511 - 561 338 8447 FAX):
Cartridge OBD II carries out following functions:
About devices you can get acquainted with details on sites www.programatools.com, www.bosch.de.
Report ISO 9141-2 is used.