BMW 5 series E39

Since 1996-2001 of release

Repair and car operation



BMW E39
+ Introduction
+ 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
+ Body
+ 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)
   Diagnostics codes



System of onboard diagnostics

Data on diagnostic devices

Use at diagnostics of considered systems of a digital multimeter with a high impedance essentially raises accuracy of made measurements


Recently, at diagnostics of control systems by the engine of modern cars such reading out devices, as manual scanners of type, for example, Actron Scantool, AutoXray XP240, or KTS 100 (Bosch) became absolutely irreplaceable

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 ч12), 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):
   -   Tester R000 with cartridge Т051D or scanner P000 with cartridge Т041,
   -   Universal cable N000,
   -   Socket N001.

Cartridge OBD II carries out following functions:
   -   Reading and removal of codes of malfunctions OBD II. Reflexion of results of tests of the gauge of oxygen.
   -   The continuous control of systems of ignition, injection and components.
   -   Reflexion of the list of the current given and fixed unstable refusals:
      •  Absolute pressure in the inlet pipeline;
      •  Pressure of the gauge of oxygen;
      •  Temperature of a cooling liquid of the engine;
      •  Settlement loading of the engine;
      •  Speed of the car;
      •  Quality of fuel;
      •  air Expense (on weight);
      • an  ignition Advancing;
      •  Position throttle заслонки;
      •  Temperature of soaked up air.

About devices you can get acquainted with details on sites www.programatools.com, www.bosch.de.

The diagnostic 16-contact socket (X19527) systems of onboard diagnostics OBD II is located on the central console

Report ISO 9141-2 is used.
The standard cable is applied to connection with socket J1962.

№ a conclusion

Appointment

1 It is set by the manufacturer
2 -
3 It is set by the manufacturer
4 The case
5 The case - an alarm conclusion
6 It is set by the manufacturer
7 Line K
8 It is set by the manufacturer
9 It is set by the manufacturer
10 -
11 It is set by the manufacturer
12 It is set by the manufacturer
13 It is set by the manufacturer
14 It is set by the manufacturer
15 Line L
16 Battery plus through a safety lock. Energised at any position of the lock of ignition