Connecting VAG 1551 Scan Tool

VAG 1551 Scan Tool (ST), Connecting


NOTE: Use can also be made instead of the VAG 1551 Scan Tool (ST) of the vehicle system tester V.A.G 1552, however it is not then possible to produce a printout.


Test conditions
- Battery voltage at least 11 V
- Ground connections at engine and transmission OK
- Fuse OK







- Connect up VAG 1551 Scan Tool (ST) or vehicle system tester V.A.G 1552 using cable V.A.G 1551/3.

Indicated on display:


V.A.G On Board Diagnostic HELP
1 - Rapid data transfer*
2 - Flash code output*


* Displayed alternately


NOTE: If one of the adjacent messages appears on the display, perform troubleshooting in line with troubleshooting program for diagnostic wire.

Indicated on display


Rapid data transfer HELP
No control module response


Indicated on display


Rapid data transfer HELP
Error in communication link


Indicated on display


Rapid data transfer HELP
K-wire not switched to Ground

Indicated on display


Rapid data transfer HELP
K-wire not switch to positive


NOTE:
If display remains blank:
- Press Print key to switch on printer (lamp in key lights).
- Press key 1 for "Rapid data transfer".


Indicated on display:


Rapid data transfer HELP
Enter address word XX


NOTE: Address word 00 implements automatic test sequence, i.e. the DTC memories of all vehicle systems with On Board Diagnostic (OBD) capability are checked by way of rapid data transfer.