Volkswagen Passat 1995 Official Factory Repair Manual page 1517

General information for On Board Diagnostic (OBD)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW...
- Depending on the desired diagnostic mode, it is
necessary to:switch on ignition or start engine
Page ST-6 , selectable diagnostic modes under
address word 33.
Note:
Respective operation of the diagnostic tester:
Operating instructions of the diagnostic tester
If no display appears on diagnostic tester,
check voltage supply at Data Link Connector
(DLC):
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Page 10 of 13
ST-10
6/12/2004