On Board Diagnostic (OBD)
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=...
Work sequence
- Connect VAG 1551 scan tool
((VAG 1552) with cable VAG
1551/3.
After the scan tool has been
connected, depending upon desired
function:
- Switch ignition on or Start engine
Page 01-9
, Table "Selectable
functions".
Note:
If the display remains blank,
check voltage supply for DLC:
Electrical Wiring Diagrams,
Troubleshooting & Component
Locations
If the display does not indicate as
described in the work sequence:
Scan tool operating instructions
If due to an input malfunction
"Fault in the data transfer!" is
displayed, pull wire off scan tool,
reconnect and repeat work step.
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12/2/2005