Volkswagen Passat 1995 Official Factory Repair Manual page 1746

VAG 1551 Scan Tool (ST), connecting and selecting 'Engine Electronics' address word 01
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VAG 1551 Scan Tool (ST),
connecting and selecting
"Engine Electronics" address
word 01
Special tools, testers and auxiliary items
VAG 1551/1552 scan tool with VAG 1551/3
adapter cable
Note:
The vehicle system tester VAG 1552 can be
used instead of the VAG 1551 scan tool,
however a print-out is not possible.
Test conditions
Fuse 21 OK
Battery voltage at least 11 volts
Ground (GND) connections on engine and
transmission OK
Work sequence
- Open cover for Data Link Connector (DLC).
- Connect VAG 1551/1552 scan tool with VAG
1551/3 adapter cable.
Depending on desired function:
- Switch ignition on or start engine
Engine Control Module (ECM) functions
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