On Board Diagnostic (OBD), Initiating Program
On Board Diagnostic (OBD), Initiating Program
Test requirements:
- Voltage supply and fuses for the relevant systems must be OK
- VAG 1551 Scan tool connected
- 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.
- 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 Check Control Module Versions (Function 01)
02 - Check DTC Memory Reading and Clearing Diagnostic Trouble Codes
03 - Output Diagnostic Test Mode Output Diagnostic Test Mode (DTM) (Function 03)
05 - Erase DTC memory
06 - End Output
07 - Code Control Module
08 - Read Measuring Value Block Read Measuring Value Block (Function 08)