Operation 6: Diagnosis of oxygen sensor aging before catalytic converter
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.
Display on VAS5051:
1 - Enter display group
Max. input value = 255
- Enter "197" for "display group 197" in zone -2- and confirm entry by pressing -Q- button.
Display on VAS5051:
- Activate basic setting by pressing -A- button.
- Press accelerator and brake pedal simultaneously. Engine speed increases to approx. 2200 RPM.
Test conditions
- Accelerator and brake pedal pressed simultaneously, engine runs at approx. 2200 RPM.
- Check specification in display zone -4-.
- Check indication in display fields -2- and -4-.
| Display zones | ||||
| 1 | 2 | 3 | 4 | |
| Display group 197: Diagnostic of oxygen sensor aging (Bank 1, Sensor 1 - Bank 2, Sensor 1) | ||||
| Display | x.x | --- | x.x | --- |
| Display | Dynamic factor Bank 1, Sensor 1 | Diagnosis status | Dynamic factor Bank 2, Sensor 1 | Diagnosis status |
| Range | Test OFF Test ON B1-S1 OK B1-S1 NOK |
Test OFF Test ON B2-S1 OK B2-S1 NOK |
||
| Specif. value | B1-S1 OK | B2-S1 OK | ||
| Note: | If "B1-S1 NOK" is displayed: Check DTC memory. Refer to Diagnostic Trouble Code (DTC) memory, checking . | If "B2-S1 NOK" is displayed: Check DTC memory. Refer to Diagnostic Trouble Code (DTC) memory, checking . | ||
If specified values "B1-S1 OK" and "B2-S1 OK" are obtained:
- Press ← button.