Volkswagen Passat 1995 Official Factory Repair Manual page 1516

General information for On Board Diagnostic (OBD)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
All electrical consumers such as:
lights and rear window defroster
must be switched off.
Parking brake must be engaged or
else daylight driving lights will be
switched on.
For vehicles with automatic
transmission, selector lever must be
in -P-.
If vehicle is equipped with an A/C
system, it must be switched off.
Ground (GND) connections
between engine, transmission, and
chassis must be OK.
Ignition switched off.
Procedure
Connect diagnostic tester (VAS 5052)
using (VAS 5052/3) diagnostic cable as
follows:
- Unclip cover for Data Link
Connector.
- Connect diagnostic cable connector
to Data Link Connector (DLC)
(arrow).
Page 9 of 13
ST-9
6/12/2004