Diagnostic Trouble Code Memory Checking

CHECKING TROUBLE CODE MEMORY
- Connect VAG 1551 Scan Tool (ST) with VAG 1551/3 adapter harness.
- Start engine and let idle.
- Operate VAG 1551 Scan Tool according to information and instructions on the display.
- Press button -1- for "Rapid data transfer" operating mode.
- Press buttons -0- and -1- to enter address word 01 for "Engine Electronics".

If engine does not start:
^ Operate the starter for approx. six seconds. DO NOT switch the ignition off.

- Press PRINT button to switch the printer on (indicator lamp in button lights up).

^ Indicated on display:

Rapid data transfer HELP
Select function XX.

- Press buttons -0- and -2- to select the "Check DTC Memory" function.
- Press -Q- button to confirm input.
- The number of stored Diagnostic Trouble Codes (DTCs) will be indicated or "No DTC recognized" will be displayed.

^ Indicated on display:

X DTC recognized
No DTC recognized.

NOTE: If anything else appears in the display, check the VAG 1551 Scan Tool operating instructions.

- If one or more DTCs are stored, they will be displayed and printed out in sequence.

^ Indicated on display:

Rapid data transfer HELP
Select function XX.

- If no Diagnostic Trouble Code is recognized:

- Press --> button.
- Press buttons -0- and -6- to select the "End Output" function.
- Press -Q- button to confirm input.
- Look up the Diagnostic Trouble Codes that are printed out, and repair. Testing and Inspection
- Erase DTC Memory. Clearing Diagnostic Trouble Codes