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Home >> Audi >> 2001 >> A4 Base, 1.8 C, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 1.8L Turbo >> Self-Diagnostic System >> Retrieving Diagnostic Trouble Codes >> Function 02 - Check DTC Memory
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Function 02 - Check DTC Memory

  1. Connect VAS 5051 or generic scan tool to Data Link Connector (DLC). DLC is located behind cover under left side of steering column. See Figure. Turn ignition on or start engine and let it idle. On scan tool, from selection No. 1 click on diagnostic function "02 - CHECK DTC MEMORY".
  2. Observe scan tool display field 1 for DTC memory content. If "0" is displayed, no malfunctions exist. If "X" is displayed, malfunctions have been recognized. Observe display field 2 for malfunction location and type. If malfunctions were recognized, go to next step. If no malfunctions were recognized, go to step  5.
  3. If VAS 5051 scan tool is being used, print out screen content, or OBD protocol. Press back arrow button to end function. "02 - CHECK DTC MEMORY". If any DTCs are displayed, perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . Go to next step.
  4. After making necessary repairs, using scan tool click on diagnostic function "02 - CHECK DTC MEMORY". Erase DTC memory. Go to next step.
  5. On scan tool, click diagnostic function "06 - END OUTPUT".
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