Step 9: Diagnosis of oxygen sensor interchange after catalytic converter: Condition
WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.
- Accelerator and brake pedals depressed simultaneously (engine will run at 1800 RPM)
- Check display in zone -4-.
DISPLAY GROUP 039: DIAGNOSIS OF OXYGEN SENSOR INTERCHANGE RECOGNITION FUNCTION (BANK 1, SENSOR 2 - BANK 2, SENSOR 2)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 039: Diagnosis of oxygen sensor interchange recognition function (bank 1, sensor 2 - bank 2, sensor 2) | ||||
| Display | x.x g/s | x.xxx V | x.xxx V | - |
| Significance | Intake air mass | Oxygen sensor voltage Bank 1, sensor 2 |
Oxygen sensor voltage Bank 2, sensor 2 |
Diagnosis status |
| Operating range | Test OFF Test ON Syst. OK Syst. n.OK |
|||
| Specification | 0.100...0.950 V | 0.100...0.950 V | Syst. OK | |
| Note | If "Syst. not OK" is displayed: Check routing and connectors of oxygen sensor downstream of catalytic converter wiring | |||
If specification "Syst. OK" is obtained in display zone 4:
- Touch > key.
- Proceed with next step.