Diagnostic Trouble Code (DTC) table

The following table lists all the malfunctions (stored as Diagnostic Trouble Codes, or DTCs) that can be recognized by the radio system and printed out by the VAG1551 Scan Tool (ST). The DTCs are listed in order according to their 5-digit numbers.
The DTCs only appear on the print-out from the scan tool.
Before replacing a component shown as faulty, check the wiring and connections to the component as well as Ground (GND) connections according to the wiring diagram.
When a repair has been carried out, the DTC memory must always be checked again and then erased using the VAG1551 scan tool.
Static and sporadic malfunctions are stored in DTC memory. If a malfunction occurs and persists for at least 2 seconds, it is identified as a static malfunction. If the malfunction does not occur again it is registered as a sporadic malfunction and "ISP" will appear at the right of the display.
When the ignition is switched on, all existing malfunctions are automatically re-classified as sporadic malfunctions and will only be registered as static malfunctions if they still occur after testing.
Sporadic malfunctions which no longer occur after 40 driving cycles (ignition on for at least 5 minutes, road speed of more than 30 km/h or 19 mph) are erased automatically.

NOTE: Texts associated with DTCs appearing in the scan tool display may differ slightly from those given here.

Fig 1: Radio - DTC 00668 & 00849 Diagnostic Table

Courtesy of AUDI OF AMERICA, INC.

When replacing battery, see BATTERY DISCONNECT PRECAUTIONS .
To check generator, see TROUBLE SHOOTING .
For replacing ignition starter switch -D-, see IGNITION/STARTER SWITCH, REMOVING AND INSTALLING .

Fig 2: Radio - DTC 00850, 00852 & 00853 Diagnostic Table

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Fig 3: Radio - DTC 00854 & 000855 Diagnostic Table

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Fig 4: Radio - DTC 00856 & 000857 Diagnostic Table

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Fig 5: Radio - DTC 00858, 00878 & 00879 Diagnostic Table

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Fig 6: Radio - DTC 01042, 01044, 01300 & 01303 Diagnostic Table

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Fig 7: Radio - DTC 01305 & 01317 Diagnostic Table

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Fig 8: Radio - DTC 01326 & 65535 Diagnostic Table

Courtesy of AUDI OF AMERICA, INC.