VAG 1551 Scan Tool (ST), connecting and selecting functions: Prerequisites:

WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2002 Volkswagen Cabrio, 2001 Volkswagen Cabrio, 2000 Volkswagen Cabrio, 1999 Volkswagen Jetta, and 1999 Volkswagen Golf. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle voltage supply OK
Fuses 14 and 21 OK
Ground (GND) connections for transmission OK
Selector lever in "P" and parking brake applied
- Check Ground connections for corrosion and poor contact; repair if necessary.

Ground (GND) point connection is located on left next to relay plate.

Check battery Ground strap and Ground strap between battery and transmission.
Remove ashtray and slide Data Link Connector (DLC) cover to left -arrow-.
Switch ignition off and connect VAG 1551 Scan Tool with adapter cable VAG 1551/3B.

Fig 1: Connecting Vag 1551 Scan Tool With Adapter Cable Vag

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Indicated on display:

Fig 2: Selecting Functions Using Vag 1551 Scan Tool (1 Of 4)

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¹⁾ Rapid Data Transfer and Blink Code Output appear alternately

NOTE:

Additional operating instructions can be retrieved by pressing the HELP button of VAG 1551.
The ==> button is used for advancing within the program sequence.
An automatic check (buttons 00) can be selected in operating mode 1 "Rapid data transfer". All vehicle control modules will be then checked automatically.

Switch ignition on.
Switch on printer with Print button (indicator lamp in button lights up).
Press button 1 for "Rapid data transfer" mode.

Indicated on display:

Press buttons -0- and -2- to select address word 02, "transmission electronics".

Indicated on display:

Fig 3: Selecting Functions Using Vag 1551 Scan Tool (2 Of 4)

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Press -Q- button to confirm input.

Indicated on display:

Fig 4: Selecting Functions Using Vag 1551 Scan Tool (3 Of 4)

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The control module identification, the coding and the dealership number of the VAG 1551 are displayed:

Fig 5: Selecting Functions Using Vag 1551 Scan Tool (4 Of 4)

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