Reading and Clearing Diagnostic Trouble Codes
- Fuses 12 (-S12-) and 21 (-S21-) OK- VAG1551 scan tool connected
- Ignition switched on
NOTES:
- Sporadic malfunctions are indicated by "/SP" on the right side of the scan tool display. In order to exclude sporadic malfunctions, erase DTC memory before repairs are carried out.
- Additional operating instructions can be printed out by pressing the "HELP" button.
- Pressing the -> button advances through the OBD program sequence.
- Press the "PRINT" button for a complete printout of scan tool operation. The LED in the "PRINT" button will come on.
- To conduct an automatic test sequence, insert address word "00 " and press the -0- button to confirm input. DTC memory will be checked for all systems with rapid data transfer OBD capability.
Check DTC Memory (scan tool function 02)
Indicated on display 1)
V.A.G - ON BOARD DIAGNOSTIC HELP
1 - Rapid data transfer
2 - Blink code output
1) Operating modes 1 and 2 appear alternately.
NOTES:
- Additional operating instructions can be printed out by pressing the "HELP" button.
- Pressing the -> button advances through the OBD program sequence.
- Press button -1- to select "Rapid data transfer" operating mode 1.
Indicated on display
Rapid data transfer HELP
Insert address word XX
- Press buttons -1- and -5- to insert "Airbag" address word 15.
Indicated on display
Rapid data transfer Q
15 - Airbag
- Press -Q- button to confirm input.
Indicated on display
Rapid data transfer Q
Scan Tool sends address word 15
NOTE: During this step, if the airbag power supply harness connector is disconnected, "Control module does not answer" will be displayed.
After approximately 5 seconds:
Indicated on display (Airbag control module identification)
4A0959655 Airbag II ->
or
Indicated on display (example for Airbag III)
8A0 959 655 B Airbag III Audi D00 ->
Coding 00127 06812
or
Indicated on display (example for Airbag V)
8A0959655D Airbag V Audi D02 ->
Code 00127 WSC 06812
Example:
- 8A0959655D: Airbag V control module number
- Airbag V Audi: System identification
- D02: Software version
- Code 00127: Airbag control module coding
- WSC 06812: Workshop code
- Press -> button.
Indicated on display
Rapid data transfer HELP
Select function XX
NOTE: Additional operating instructions can be printed out by pressing the "HELP" button.
- Press buttons -0- and -2- to select "Check DTC Memory" function 02.
Indicated on display
Rapid data transfer Q
02 - Check DTC Memory
- Press -Q- button to confirm input.
Indicated on display (number of stored DTCs)
X DTC recognized ->
or
"No DTC recognized" (no recognized malfunctions)
No DTC recognized ->
NOTES:
- Sporadic malfunctions are indicated by "/SP" on the right side of the scan tool display In order to exclude sporadic malfunctions, DTC memory must be erased before repairs are carried out.
- With the printer switched on, stored DTCs will be indicated and printed in sequence.
- If the printer is switched off, press the button to display the next DTC.
- Press -> button (after last DTC is displayed or printed).
Indicated on display
Rapid data transfer HELP
Select function XX
- Diagnose and correct airbag system malfunctions according to displayed DTCs.
- Erase DTC memory and confirm by checking DTC memory again.
Erase DTC Memory (scan tool function 05)
- Fuses 12 (-S12-) and 21 (-S21-) OK
- Check DTC memory and advance through VAG1551 scan tool program sequence until display appears as shown.
Rapid data transfer HELP
Select function XX
- Press buttons -0- and -5- to select "Erase DTC Memory" function 05.
Indicated on display
Rapid data transfer Q
05 - Erase DTC Memory
- Press -Q- button to confirm input.
Indicated on display
Rapid data transfer ->
DTC Memory is erased
- Press -> button.
Indicated on display
Rapid data transfer HELP
Select function XX