A8L V8-4.2L (BFM) (2004)
Information Bus: Component Tests and General Diagnostics
On Board Diagnostic, Function
The Data Bus On Board Diagnostic Interface -J533- is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If
malfunctions occur in monitored sensors and components, Diagnostic Trouble Codes (DTC) will be stored in memory.
Troubleshoot -J533- malfunctions by performing OBD program. Use VAS 5051 Vehicle Diagnostic Testing and Information System in mode "Guided
Fault Finding".
VAS 5051 in mode "Guided Fault Finding":
-
Enter appropriate model, equipment and model year information and press ">" to confirm.
After the DTC memory of all control modules has been checked:
-
Press "Go to" button
-
Select "Function/Component Selection"
-
Select: "Body (Repair Group 01; 27; 50 to 97)"
-
Select: "Electrical System (Repair Group 01; 27; 90 to 97)"
-
Select: "01 - On Board Diagnostic (OBD) capable systems"
-
Select: "19 - Gateway"
-
Select: appropriate option
-
Follow tester prompts