Diagnostic Trouble Code (DTC) table
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- If malfunctions occur in the monitored sensors and components, these are stored in the DTC memory together with an indication of type of malfunction.
- Malfunctions related to EPC are additionally indicated by the warning lamp for the electronic throttle control ("EPC warning lamp") which is situated in the instrument cluster. Notes on EPC system. Refer to Function of the electronic throttle system .
- Malfunctions that worsen emissions are indicated by an exhaust warning lamp (MIL) that is also located in the instrument cluster. There are malfunctions that cause the exhaust warning lamp to light up immediately after recognition. Malfunctions can also occur that cause the exhaust MIL to light up, but only if malfunction is recognized again after repeated engine starts. Notes for exhaust warning lamp (MIL). Refer to Exhaust Malfunction Indicator Lamp (MIL) in instrument cluster .
- The DTC table is sorted according to the 5-digit DTC code on the left.
- Sporadic malfunctions (malfunction occurring from time to time) are indicated as "sporadic" on the display. The word "sporadic" signifies individually occurring, random malfunctions.
- Do not immediately replace components indicated as faulty by the VAS5051 but: first check the wiring and connectors of these components against the wiring diagram. Check the Ground connections against wiring diagram. This is particularly relevant for malfunctions recorded as "sporadic".
- After erasing the DTC memory. Refer to Diagnostic Trouble Code (DTC) memory, checking the readiness code must be regenerated. Refer to Readiness code, generating .