Connect VAG 1551 Scan Tool and select function

WARNING: This page does not describe the selected car, but rather 19 other vehicles, including the 1999 Volkswagen Jetta, 1999 Volkswagen Golf, 1999 Volkswagen GTI, 1998 Volkswagen Jetta, and 1998 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Test conditions:

All fuses OK according to wiring diagram
Battery voltage at least 9 V

Remove ashtray and slide cover for Data Link Connector (DLC) to the left (arrow).

Fig 1: Locating Data Link Connector (DLC) - From 09.94 & Up

Switch off ignition and connect VAG 1551 Scan Tool using VAG 1551/3 adapter harness.

Indicated on display

* Operating modes 1 and 2 are displayed alternately.

Fig 2: Identifying VAG 1551 Scan Tool Display

NOTE:

If the display remains blank, check the voltage supply to the VAG 1551 scan tool using the applicable wiring diagram,

See appropriate WIRING DIAGRAM article.

Additional operating instructions can be printed out by pressing the HELP button on the VAG 1551 scan tool.
The --> button advances the scan tool program sequence.
The PRINT button switches the printer on (indicator light in button lights up).