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Default BMW BUS systems manuals

  • BMW BUS SYSTEM TROUBLESHOOTING manual
Pages: 31
Language: English

After completing this module you should be able to:

Review the advantages of using bus systems in a vehicle.
Review the various bus systems used in most BMW vehicles.
Understand the operating principle of a serial bus.
Review methods of troubleshooting bus lines using the diagnosis program.
Recognize how to distinguish a correctly operating bus line on an oscilloscope.


Introduction.................................................. .................................................. ...... 3

Definitions.................................................. .................................................. .......... 4

Controller Area Network (CAN bus).................................................. ............... 5
Introduction.................................................. ................................................. 5
CAN bus topology.................................................. ...................................... 6
Troubleshooting the CAN bus.................................................. ................. 7

Diagnosis Bus (D-bus)
.................................................. ....................................... 13
Introduction.................................................. .............................................. 13
D-bus topology.................................................. .......................................... 13
Troubleshooting the D-bus.................................................. .................... 14

Information and Body Bus
.................................................. ........................... 16
Introduction.................................................. .............................................. 16
l/K bus topology.................................................. ........................................ 18
Troubleshooting the l/K-bus.................................................. ................... 19

Peripheral Bus (P-bus)
.................................................. ....................................... 23
Introduction.................................................. .............................................. 23
P-bus topology.................................................. .......................................... 24
Troubleshooting the P-bus.................................................. ...................... 25

Motor Bus (M-bus)
.................................................. ........................................... 26
Introduction.................................................. .............................................. 26
M-bus topology.................................................. ........................................... 28
Troubleshooting the M-bus.................................................. .................... 28
Initial Print Date:2/01/01 Revision Date: 1/23/01

Review Questions.................................................. ............................................... 31
Attached Files
File Type: pdf www.bmwcoders.com_bus_system.pdf (1.28 MB, 696 views)


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  • Service training ST401. Introduction to BMW Bus Systems.
Model: All from E38 to Present
Production: All

After completion of this module you will be able to:
Describe the operation of a basic bus system.
Understand how signals and sensor information are shared between
control units in a bus system.
Identify bus systems currently used in BMW Group vehicles.
Understand how bus networking technology is applied in BMW vehicles.
Understand diagnostic techniques.

Contents:

Introduction to Bus Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Bus Communication Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Bus System Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Bus System Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Diagnosis Bus (D-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Diagnostic Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Gateways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Controller Area Network (CAN-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . .14
CAN-Bus Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Terminal Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
CAN Communication Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Information and Body Bus (I and K-Bus) . . . . . . . . . . . . . . . . . . . . . . .18
Bus System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Troubleshooting the I/K-Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Failure of the Bus cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Failure of one of the control units attached to the I/K-Bus. . . . . . . .24
Failure of the voltage supply to individual modules. . . . . . . . . . . . . . .24
Interference in the Bus Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Peripheral Bus (P-Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Troubleshooting the P-Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

M-Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Communication Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
M-Bus Topology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
M-Bus Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Free download - in attached file.
Attached Files
File Type: pdf www.bmwcoders.com_ST401 - Body Electronics II.pdf (1.76 MB, 468 views)
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  • Service training ST402. Introduction to BMW Advanced Body Electronics. 62 pages. Language - English.
Model: E65, E66, E60, E63, and E64
Production: All

After completion of this module you will be able to:
Understand changes to Body Electronic Systems on the E6X models
Understand advanced bus systems
Understand Principles of Fiber Optics
Diagnose MOST Bus concerns

Contents:

Introduction to Advanced Body Electronics . . . . . . . . . . . . . . . . . . . . .5

Advanced Bus Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8


Fiber Optic Bus Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Principle of Light Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Light Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Causes of Excessive Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Bending Radius . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Kinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Compression Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Stretching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Abrasion Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Dirty or scratched Fiber Optic Cable Ends . . . . . . . . . . . . . . . . . . .12

Fiber Optic System Service and Diagnosis . . . . . . . . . . . . . . . . . . . . .13
Service Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Cable Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Fiber Optic Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Fiber Optic Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

MOST Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
MOST Multimedia Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Principle of a Multimedia Network . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Advantages of a Multimedia Network . . . . . . . . . . . . . . . . . . . . . . . . . .17
MOST Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Data Quantities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Data Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Optical Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Optical Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Optical Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Control Unit/Control Unit Connection . . . . . . . . . . . . . . . . . . . . . . . . . .21
E65 Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Control Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Audio System Controller (ASK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Network Master (Main Controller) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Audio Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Connection Master . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
CD Changer Audio (CDC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Navigation System (NAV 01) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Slave (Subordinate) Control Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

MOST Bus Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

MOST Control Unit Sequence (E65) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Optical Wave Guide Communication Fault . . . . . . . . . . . . . . . . . . . . . . . .27
Control Module Does Not Switch Off Light . . . . . . . . . . . . . . . . . . . . . . .28
Network Wakeup Unsuccessful . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Ring Break Diagnosis Carried Out (FC E190) . . . . . . . . . . . . . . . . . . . .29
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Light Output Reduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Ring Break Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Perform Ring Break Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Status Wakeup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
E65 MOST Bus Diagnostic Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Fault Symptoms E65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Creating Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Non-Digitized Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Self-Burnt DVDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Telephone E65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Audio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

E60 MOST Bus Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
CCC/MASK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Diagnosis Excessive Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Control Module Resets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
MOST Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Same Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Different Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Store Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Ring Break Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Stability Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
MOST Control Unit Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Repair of the MOST Fiber-Optic Cables . . . . . . . . . . . . . . . . . . . . . . .40

byteflight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Transmitter/Receiver Module (SE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Data Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Controller Area Network (CAN Bus) . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
E65 K-CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
K-CAN System/Peripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Advantages of two K-CAN Busses . . . . . . . . . . . . . . . . . . . . . . . . . . . .51
Voltage Level on the K-CAN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Terminal Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

PT (Powertrain) CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Voltage Level on the PT CAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
PT CAN Terminal Resistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Failsafe Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
"Wake-up" Lead in PT CAN Network . . . . . . . . . . . . . . . . . . . . . . . . . .55

Diagnosis Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Diagnosis Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Vehicle Diagnosis Access Point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Free download - in attached file.
Attached Files
File Type: pdf www.bmwcoders.com_ST402 - Body Electronics III.pdf (1.49 MB, 548 views)
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Quote:
Originally Posted by Tyler View Post
  • BMW BUS SYSTEM TROUBLESHOOTING manual
Pages: 31
Language: English

After completing this module you should be able to:

Review the advantages of using bus systems in a vehicle.
Review the various bus systems used in most BMW vehicles.
Understand the operating principle of a serial bus.
Review methods of troubleshooting bus lines using the diagnosis program.
Recognize how to distinguish a correctly operating bus line on an oscilloscope.




Definitions.................................................. .................................................. .......... 4

Controller Area Network (CAN bus).................................................. ............... 5
Introduction.................................................. ................................................. 5
CAN bus topology.................................................. ...................................... 6
Troubleshooting the CAN bus.................................................. ................. 7

Diagnosis Bus (D-bus)
.................................................. ....................................... 13
Introduction.................................................. .............................................. 13
D-bus topology.................................................. .......................................... 13
Troubleshooting the D-bus.................................................. .................... 14

Information and Body Bus
.................................................. ........................... 16
Introduction.................................................. .............................................. 16
l/K bus topology.................................................. ........................................ 18
Troubleshooting the l/K-bus.................................................. ................... 19

Peripheral Bus (P-bus)
.................................................. ....................................... 23
Introduction.................................................. .............................................. 23
P-bus topology.................................................. .......................................... 24
Troubleshooting the P-bus.................................................. ...................... 25

Motor Bus (M-bus)
.................................................. ........................................... 26
Introduction.................................................. .............................................. 26
M-bus topology.................................................. ........................................... 28
Troubleshooting the M-bus.................................................. .................... 28
Initial Print Date:2/01/01 Revision Date: 1/23/01

Review Questions.................................................. ............................................... 31
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The links appear to be dead. Can someone re-establish the links?

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Yea confirmed broken links throughout the forums other pdf links on separate threads also yielded null results.

Maybe it would be a good idea to zip/archive or whatever flavor of compression desired for all PDF files then link it?
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Old 05-24-2014, 05:31 AM
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almost nothing Works here whatsoeverhttp://bmwcoders.com/forum/images/smiles2/mad.gif
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