Self-Study Programme 202 VAS 5051.pdf

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Vehicle Diagnostic, Testing and
Information System VAS 5051
Design and Functions
Self study program No. 202
The Vehicle Diagnostic, Testing and Information System VAS 5051 ...
202/001
... for state-of-the-art fault finding!
This innovative system provides mechanics with comprehensive support in
concentrated form for finding faults in the electronic systems of vehicles.
The mechanic can be supported by the guided fault finding mode, or also carry
out his own variable test sequences using the test instruments and self-diagnosis.
The system provides help for operation and fault detection.
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List of contents
Main components of the VAS 5051
Why another new diagnostic system? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Fundamentals of system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Design and features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Summary of tester. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Modes
Start screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle self-diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Test instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Guided fault finding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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13
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Measurements and analysis with the VAS 5051
Multimeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Digital Storage Oscilloscope (DSO) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Sensor analysis with the DSO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Actuator analysis with the DSO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Before switching on the diagnostic system, refer to the supplied Instruc-
tion Manual for information on how to use it and on special features.
New!
Caution!
Note!
The private study program
is not a workshop manual!
For test, adjustment and repair
instructions, please refer to the
provided servicing literature.
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Main components of the VAS 5051
Why another new diagnostic
system?
Modern electronics makes our cars increasingly
safe, comfortable and environment-friendly.
The associated increased networking of the elec-
tronic vehicle systems makes fault finding
increasingly complex and time-intensive.
Since the previous vehicle system testers only
indicate the path in which the fault is to be found,
fault finding is sometimes delayed by lengthy
measurements and studying of various workshop
manuals.
The frequently used suspicion-based repairs
result in unnecessary burdens on the customers
and the mechanics as a result of multiple repairs.
The VAS 5051 vehicle diagnostic, testing and
information system is now putting an end to this
situation.
The new system combines the vehicle self-diag-
nosis, test instruments and technical
documentation with state-of-the-art technology.
Use of the VAS 5051 enables fault finding on the
vehicle to be carried out more rationally, pre-
cisely, clearly and economically:
- Because you receive exact instructions on
what you have to do and where in all
phases of the "Guided Fault Finding" on
the touchscreen;
operating faults are practically eliminated.
- Because the fault memories of the control
units are read via the diagnostic interface
to the vehicle, and an objective test plan is
automatically derived from this.
- Because you can select hierarchically listed
data from selection lists for vehicle identifi-
cation, input of fault characteristics or
selection of functions, groups of compo-
nents and individual components.
- Because you can display associated docu-
mentation for selected functions, groups of
components or individual components, and
print this if required.
Because of its state-of-the-art technology and
future-oriented capabilities, all workshops of the
group worldwide will be equipped with the new
VAS 5051.
The VAS 5051 can be used for all marques
of the Volkswagen Group.
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Fundamentals of system
The VAS 5051 is a knowledge-based system.
The knowledge base is present on a CD-ROM
and includes the latest knowledge on:
- Equipment
- Fault codes of control units
- Fault characteristics
- Vehicle design with respect to functions
and components
- Function tests
- Technical documentation.
The data are combined in hierarchical architec-
tures and linked to one another.
The knowledge base is generated using a diag-
nostic development system.
It can be easily supplemented and modified, thus
permitting adaptation to new vehicles.
The incorporation of new documents is also pos-
sible, as is the utilization of workshop experience
with e. g. new fault characteristics and their
assignments.
As a result of the knowledge base, the diagnostic
system is able:
- To identify a vehicle and its standard/
optional equipment
- To carry out an automatic system test of the
electronic systems fitted in the vehicle
- To carry out a "Guided fault finding"
according to a test plan by selecting fault
characteristics
- To use own knowledge by direct selection of
tests
- To generate easy-to-use self-diagnosis func-
tions
- To generate new test plans following auto-
matic incorporation of a function test.
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