VAG 1551 Scan Tool (ST), Connecting, Selecting Functions and Checking Control Module Version
VAG 1551 Scan Tool (ST), Connecting, Selecting Functions And Checking Control Module Version
Prerequisites:
- All fuses OK according to wiring diagram.
- Battery (B+) voltage at least 9 Volts.
NOTE:
- VAG 1552 Scan Tool (ST) may be used instead of the VAG 1551 Scan Tool (ST), however a print-out is not possible.
- The following procedure and display references pertain only to VAG 1551 Scan Tool (ST).
Connecting
With ignition switched off, connect VAG 1551 Scan Tool (ST) with adapter cable VAG 1551/3A or 1551/3B to the Data Link Connector (DLC) as follows:
- Remove cover for Data Link Connector (DLC) under left instrument panel.
- Connect Scan Tool using adapter cable VAG 1551/3A or 1551/3B.
Indicated on display:
On Board Diagnostic (OBD) HELP
1 - Rapid data transfer*
2 - Blink code output*
* Is displayed alternately
Functions, selecting
NOTE:
- If the display remains blank check Scan Tool (ST) voltage supply according to wiring diagram,
- Additional operating instructions can be called up by pressing the HELP button.
- The -> button is used to advance through the program sequence.
- In operating mode 1 "Rapid data transfer," function 00 "Automatic test sequence" can be carried out. The DTC memory of all control modules with OBD capability are checked automatically.
- During OBD program, radio is automatically muted.
- Switch on ignition.
- Switch on printer with the Print button (indicator lamp in button lights up).
- Press button 1 for "Rapid data transfer" mode.
Indicated on display:
Rapid data transfer HELP
Input address word XX
- Press buttons -1- and -6- to select "Steering wheel electronics" address word 16.
Indicated on display
Rapid data transfer Q
16 - Steering wheel electronics
- Press -Q- button to confirm input.
Indicated on display
Rapid data transfer Q
Tester sends address word 16
Control Module Version, checking
Display shows (example only):
1J0907487 Steering wheel electr x28 ->
Coding 00008 WSC 00000
Top line Device version no. of the steering wheel electronics
(Steering wheel electronics)
Bottom line Code number (Workshop number1)
1) Automatically stored in the steering wheel electronics during interrogation of the system.
CAUTION: Part numbers are for reference only. Always check with your Parts Department for the latest parts information.
- Press -> button.
NOTE: If this message appears in the display:
Rapid data transfer HELP
Control module does not answer.
- Press the HELP button to print out a list of possible malfunction causes.
- After eliminating malfunctions, re-enter address word 16 for steering wheel electronics again and press -Q- button to confirm input.
Indicated on display (example only)
1J0035152 Steering wheel electr x28 ->
Coding 00008 WSC 00000
Display shows
Rapid data transfer HELP
Select function XX
- After pressing the HELP button, an overview of the possible functions printed out.
List of available functions
Function
01 - Check Control Module Versions
02 - Check DTC Memory
03 - Output Diagnostic Test Mode (DTM)
05 - Erase DTC Memory
06 - End Output
07 - Code Control Module
08 - Read Measuring Value Block
NOTE:
- Do not select other functions that are printed out after the HELP button is pressed.
- After ending the function, the VAG 1551 goes back to the following initial screen.
Display shows
Rapid data transfer HELP
Select function XX