Diagnostic Trouble Code (DTC) Memory, checking (function 02)

1999 Audi A8 QuattroSECTION Diagnostic Trouble Code (DTC) Memory, checking (function 02)
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NOTE: The displayed malfunction is only updated when the On Board Diagnostic (OBD) program is initiated or when "Erase DTC Memory" function 05 is used.
  • Switch on printer by pressing PRINT button (indicator lamp in button lights up.)

Indicated on display

Fig 1: VAG1551 Scan Tool Display - Diagnostic Trouble Code Memory, Checking Function 02 (1 Of 5)
G02719404Courtesy of AUDI OF AMERICA, INC.
  • Press buttons -0- and -2- to select "Check DTC Memory" function 02.

Indicated on display

Fig 2: VAG1551 Scan Tool Display - Diagnostic Trouble Code Memory, Checking Function 02 (2 Of 5)
G02719405Courtesy of AUDI OF AMERICA, INC.
  • Press -Q- button to confirm input.

Indicated on display (the number of stored malfunctions)

Fig 3: VAG1551 Scan Tool Display - Diagnostic Trouble Code Memory, Checking Function 02 (3 Of 5)
G02719406Courtesy of AUDI OF AMERICA, INC.

Stored malfunctions are displayed and printed out one after the other.

If "No DTC recognized" is displayed the program will return to the starting point ("Select function XX" prompt) after the --> button is pressed.

Fig 4: VAG1551 Scan Tool Display - Diagnostic Trouble Code Memory, Checking Function 02 (4 Of 5)
G02719407Courtesy of AUDI OF AMERICA, INC.

Indicated on display

Fig 5: VAG1551 Scan Tool Display - Diagnostic Trouble Code Memory, Checking Function 02 (5 Of 5)
G02719408Courtesy of AUDI OF AMERICA, INC.

If anything else is displayed:

See Scan Tool operating instructions.

  • End output (function 06). See END OUTPUT (FUNCTION 06)Β  .
  • Switch ignition off and disconnect diagnostic cable from Data Link Connector (DLC.)
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.