Initiating & Checking Control Module Versions

On Board Diagnostic (OBD), Initiating Program

Test requirements:
- Voltage supply and fuses for the relevant systems must be OK
- VAG 1551 Scan tool connected Connecting VAG 1551
- Ignition switched on

NOTE:
- DTCs which have only occurred briefly are classified as "sporadic" and are identified by the letters "/SP" on the right of the display.
- To eliminate these sporadic DTCs, erase the DTC memory before starting repair work.
- Additional operating instructions can be called up by pressing the HELP button on VAG 1551 Scan tool.
- The -> button is used to advance the program to the next step.
- Switch on printer with the Print key (indicator lamp in key lights up).
- Press button -1- for "Rapid data transfer."

Indicated on display

Rapid data transfer HELP
Insert address word XX

Address word for airbag system: 15

- Press buttons -1- and -5-.

Indicated on display

Rapid data transfer Q
15 Airbag

- Confirm input with -Q- button.

Indicated on display

Rapid data transfer
Tester sends address word 15

- This display (front and side airbags) will appear after 5 seconds.

8N8909601 Airbag Front+Side 0004 ->
Coding 10102 WSC 06812

- Press -> button.

Indicated on display

Rapid data transfer HELP
Select function XX

NOTE: When the HELP button is pressed a list of the available functions is printed out.

On Board Diagnostic (OBD) functions
The following functions are possible:

01 - Check Control Module Version
02 - Check DTC Memory
03 - Output Diagnostic Test Mode
05 - Erase DTC memory
06 - End Output
07 - Code Control Module
08 - Read Measuring Value Block