Volkswagen Golf 1999 Service Manual page 4084

On Board Diagnostic (OBD) through m.y. 2001
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=...
Notes:
Display fields in functions 04 (Basic setting) and
08 (Read Measuring Value Block) are listed
from top to bottom.
The following test sequences are described for
the VAG 1551 Scan Tool (ST).
VAG 1551, connecting
Test requirements:
All fuses OK according to wiring diagram.
Battery voltage must be at least 11.5 volts.
- Connect VAG 1551 Scan Tool (ST) with VAG
1551/3C cable to Data Link Connector (DLC).
Notes:
If nothing is indicated on display, check voltage
supply for VAG 1551 scan tool according to
wiring diagram.
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Depending on the program, additional operating
information can be printed out by pressing the
HELP button of the VAG 1551 scan tool.
Function 00 "Automatic test sequence" can be
performed in operating mode 1 "Rapid data
transfer". This automatically checks all control
modules installed in the vehicle.
The button is used for advancing through
the program sequence.
The PRINT button is used for switching on the
printer (lamp in button lights up).
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13/2/2005