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HOMESERVICE MANUALSAUDI1996A4 BASE, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)EXTERNAL PAGESDIFFERENT CARSECTION 61 (ON BOARD DIAGNOSTIC (OBD) - A/T 01L)CHECK DTC MEMORY (SCAN TOOL FUNCTION 02)
1996 Audi A4 Base, Standard

Check DTC Memory (scan tool function 02)

1996 Audi A4 Base, StandardSECTION Check DTC Memory (scan tool function 02)
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2005 Audi allroad, 2004 Audi allroad, 2004 Audi A6, 2003 Audi allroad, and 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
  • Connect Diagnosis and Information System VAS 5051 or VAG 1551 Scan Tool (ST) and select "Transmission Electronics" with address word 02. See ON BOARD DIAGNOSTIC (OBD) . Ignition must be switched on.

Indicated on display:

Fig 1: Identifying VAG 1551 Scan Tool Display (Rapid Data Transfer)
G02722521Courtesy of AUDI OF AMERICA, INC.
  • Press buttons -0- and -2-to insert "Check DTC memory"

Indicated on display:

Fig 2: Identifying VAG 1551 Scan Tool Display (02 - Check DTC Memory)
G02722522Courtesy of AUDI OF AMERICA, INC.
  • Press Q button to confirm input.

The display shows the number of stored DTCs or "No DTC found".

Fig 3: Identifying VAG 1551 Scan Tool Display (X DTCs Recognized)
G02722523Courtesy of AUDI OF AMERICA, INC.

The stored DTCs will be displayed and printed in one after the other.

  • Press --> button.
  • After the last DTC was displayed and printed out, correct malfunctions according to instructions in DTC tables. See DIAGNOSTIC TROUBLE CODE (DTC) TABLES .
  • Press --> button.

Indicated on display:

Fig 4: Identifying VAG 1551 Scan Tool Display (Rapid Data Transfer)
G02722524Courtesy of AUDI OF AMERICA, INC.
RENDER: 1.0x

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When to See a Mechanic

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

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