1998 VOLKSWAGEN JETTA display

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The PRINT key is used for switching on the
printer (warning lamp in key comes on).

- Switch ignition on.

- Switch on printer with Print key (indicator lamp in
key lights up).

- Press key -1- for "Rapid data transfer" operating
mode.
Rapid data transfer HELP
Enter address word XX Indicated on display
- Press keys -0- and -3-; 03 inputs the address
word of the vehicle system to be tested "Brake
electronics".
Rapid data transfer Q
03 - Brake electronics Indicated on display
- Confirm input with Q key.
1J0 907 379 D ABS 20 IE CAN 0001
Coding 03604 WSC XXXXX
Display shows e.g.
Displayed is:
e.g. (1J0 907 379 D)
Allocation of control module see Parts catalog
Electrical Wiring Diagrams, Troubleshooting &
Component Locations binder
The control module identification number.
System designation (ABS 20 IE)
Data BUS present. (CAN)
Стр. 4из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Control module code (03604).
Coding control module Page 01
-58
Workshop code
V.A.G 1551 Scan Tool operating
instructions
If the control module identification number
does not appear Summary of selectable
functions Page 01
-27

-
Press key.
Rapid data transfer HELP
Select function XX Indicated on display (select function, e.g. 02
- Check DTC memory).
Rapid data transfer HELP
Control module does not answer! Indicated on display
By pressing the HELP key, a list of possible
fault causes is printed out.
If "Control module does not answer!" again
appears: - After eliminating possible causes of
malfunctions, enter the address word 03
for "Brake electronics" again and
confirm.
Rapid data transfer HELP
Control module does not answer! Indicated on display
- Perform test steps 1, 2 and 3 Page
01-102 , Electrical check.
Rapid data transfer
No signal from control module!
malfunctions have occurred during checking
of control module identification (possibly
influenced from external sources?)
Стр. 5из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Diagnostic Trouble Code (DTC),
memory

All functions which could previously be
performed with V.A.G 1551 can also be
performed with the new tester VAS 5051.
Rapid data transfer HELP
Select function XX Indicated on display:
- Press keys -0- and -2-; 02 enters the
"Check DTC memory" function.
Rapid data transfer Q
02 - Check DTC memor
y
Indicated on display
- Confirm entry with Q key.
X DTCs recognised! The number of stored DTCs or "No DTCs
recognized" appears in the display.
-
Press key.
The stored DTCs are displayed and
printed out one after the other.
- With DTC information print-out eliminate
malfunctions according to DTC table,
Page 01
-35 .
As with "No DTC recognized", the
program returns to the start position after
pressing the key:
Rapid data transfer HELP
Select function XX Indicated on display
- End output (Function 06) Page 01
-56 .
Стр. 8из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Automatic test sequence
The automatic test sequence checks all the
Diagnostic Trouble Code (DTC) memories
of the control modules.

- Switch ignition on.
V.A.G - On Board Diagnostic HELP
1 - Ra
pid data transfer1)
2 - Blink code output1)
Indicated on display
1) Is displayed alternately
- Press key -1- for "Rapid data transfer"
operating mode.
- Switch on printer with the Print key
(indicator lamp in key lights up).
Rapid data transfer HELP
Select function XX Indicated on display
- Press key -0- twice; 00 enters "Automatic
test sequence" function.
- Confirm entry with Q key.
1J0 907 379 D ABS 20 IE CAN0001
Coding 03604 WSC XXXXX
The V.A.G 1551 Scan Tool display will
show the control module identification, e.g.:
Thereafter all control module
identifications with eventual DTC
memory entries are displayed
Стр. 10из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Note:

The ABS function is switched off in the control
module during the On Board Diagnostic.

The DTC memory can be erased after
successful checking and repair.

Note:
Operating instructions for Vehicle Diagnosis,
Testing and Information System VAS 5051. - Pull cover -1- off in direction of -arrow-.
- With ignition switched off, connect tester VAS
5051 to diagnosis connection using diagnosis
cable VAS 5051/1 or VAS 5051/3.
In the functions 04 - Basic setting/08 - Read
Measured value block, the display zones will b
e
listed from top to bottom.
If the display does not indicate as described in
the work sequence:
Стр. 12из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Indicated on display
Select operating mode:
- Press button on display for "Vehicle On
Board Diagnostic" -arrow-.
Indicated on display
Select vehicle system:
- Press "03 - Brake electronics" on display
-arrow-.
Стр. 13из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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Displayed is
e.g. (1J0 907 379 D)
Allocation of control module see Parts
catalog
Electrical Wiring Diagrams,
Troubleshooting & Component Locations
binder
Coding control module Page 01
-58
Operating instructions for Vehicle
Diagnosis, Testing and Information System
VAS 5051.
The control module identification
number.
System designation (ABS 20 IE)
Data BUS present. (CAN)
Control module code (03504).
Workshop code
Indicated on display
Select diagnostic function:
At this point all diagnostic functions are
available.
For further measures see repair
procedures.
Стр. 14из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program

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V.A.G 1551
print-out Possible cause
Repair
No DTC
recognized If "No DTC recognized" appears after carrying out repairs, On Board
Diagnostic (OBD) is ended.
If, despite "No DTC recognized" appearing in the display, the ABS system
does not function properly, then proceed as follows:
1. Carry out road test exceeding 20 km/h (13 mph),
2. Again check DTC memory, if there is still no DTC stored,
3. Continue troubleshooting without OBD and work through the complete
Electrical check Page 01
-102 .
Стр. 16из 81 ABS ITT Mk 20 IE On Board Diagnostic (OBD) program