display AUDI A4 1995 B5 / 1.G AWM Engine On Board Diagnostic Workshop Manual
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01-1
On Board Diagnostic (OBD)
On Board Diagnostic (OBD), technical
data
Equipment
Data is transmitted between the control module
and the VAS5051 tester or VAG1551 Scan Tool
(ST) via operating mode "On Board Diagnostic
(OBD)".
DTC memory is designed for permanent
memory and is therefore not dependent on
voltage supply.
Display of stored DTCs occurs after initiation of
display mode Page 01
-12
.
DTC memory must be erased after malfunction
is repaired Page 01
-12
.
Important:
Readiness code must be re-generated after
every time DTC memory is erased Page 01
-
84
.
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If a malfunction indication is displayed:
Operating instructions for the VAS 5051 tester
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01-8
Display on VAS5051:
- Press the "Guided fault finding" button.
Display on VAS5051:
Note:
Selecting "00 - Check DTC memory - entire system" in selection -1-
initiates the automatic test sequence, i.e. it results in a DTC check on all
OBD capable systems in the vehicle.
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01-9
Display on VAS5051:
Depending on desired function Table "diagnostic functions", Page 01
-11
:
or
- Switch ignition on.
- Start engine.
- Press selection -1- of vehicle system "01 - Engine electronics".
- Wait until the next indication appears on display.
Display on VAS5051:
1 - Control module identification of Engine Control Module (ECM)
Page 01
-10
2 - Control module identification of immobilizer Page 01
-10
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01-11
-
Click on - button
Display on VAS5051:
1 - Selection of diagnostic functions:
Diagnostic functions
Ignition on,engine
off
Engine running at
idle
Vehicle in drive
mode
page
02 Check DTC Memory No Yes Yes Page 01
-
12
03 Output Diagnostic Test Mode
(DTM) Yes No No Page 01
-
51
04 Basic Setting Yes Yes Yes Page 01
-
66
05 Erase DTC Memory Yes Yes Yes Page 01
-
12
06 End Output Yes Yes Yes Page 01
-
16
07 Code control module Yes No No Page 01
-
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