SAE Diagnostic Trouble Codes (DTCs)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2004 Audi A6, 2003 Audi S6, 2003 Audi A6, 2002 Audi S6, and 2002 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.
The DTC consists of a 5-digit alpha-numeric value with the following meaning:
SAE DIAGNOSTIC TROUBLE CODES
| Component group | |||||
| P | x | x | x | x | DTC for drivetrain |
| Norm-Code | |||||
| P | 0 | x | x | x | DTCs defined by SAE with specified malfunction texts |
| P | 1 | x | x | x | additional emission relevant DTCs provided by manufacturer |
| P | 2 | x | x | x | DTCs defined by SAE with specified texts, from MY 2000 |
| P | 3 | x | x | x | additional emissions relevant DTCs provided by manufacturer from MY 2000 |
| Repair group | |||||
| P | x | 0 | x | x | Fuel and air mixture and additional emission regulations |
| P | x | 1 | x | x | Fuel and air ratios |
| P | x | 2 | x | x | Fuel and air ratios |
| P | x | 3 | x | x | Ignition system |
| P | x | 4 | x | x | Additional exhaust regulation |
| P | x | 5 | x | x | Speed and idle control |
| P | x | 6 | x | x | Control module and output signals |
| P | x | 7 | x | x | Transmission |
| P | x | 8 | x | x | Transmission |
| P | x | 9 | x | x | Control modules, input and output signals |