Operation 8: Diagnosis, oxygen sensor control system
WARNING: This page is about a different car, the 2003 Audi S6 and 2002 Audi S6. However, it is still accessible from the selected car via links, so may be relevant.
- Engine idling
Indicated on display
- Enter "037" for "display group number 037" and confirm entry with Q key.
Display readout
- Check specification in display zone 4:
DISPLAY GROUP 037: OXYGEN SENSOR CONTROL SYSTEM (BANK 1)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 037: Oxygen sensor control system (bank 1) | ||||
| Display | xx.x % | x.xxx V | xxx ms | Test ON |
| Display | Load | Voltage of oxygen sensor behind catalytic converter, bank 1 | Oxygen correction value between oxygen sensor 1 and oxygen sensor 2, Bank 1 | Diagnosis status |
| Range | 0...175 % | 0.000...1.000 volts | --- | Test OFF Test ON Syst. OK Syst. NOK |
| Specified value | 14...24 % | 0.000...1.000 volts | -800ms...800ms | Syst. OK |
| Note: | If "syst. NOK" is displayed check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If specified value in display zone 4 "Syst OK" is attained:
- Press C key.
- Press keys 0, 3 and 8 for "display group number 38" and confirm entry with Q key.
DISPLAY GROUP 038: OXYGEN SENSOR CONTROL SYSTEM (BANK 2)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 038: Oxygen sensor control system (bank 2) | ||||
| Display | xx.x % | x.xxx V | xxx ms | Test ON |
| Display | Load | Voltage of oxygen sensor behind catalytic converter, bank 2 | Oxygen correction value between oxygen sensor 2 and oxygen sensor 2, Bank 1 | Diagnosis status |
| Range | 0...175 % | 0.000...1.000 volts | --- | Test OFF Test ON Syst. OK Syst. NOK |
| Specified value | 14...24 % | 0.000...1.000 volts | -800ms...800ms | Syst. OK |
| Note: | If "syst. NOK" is displayed check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If the specified value in display zone 4 "Syst OK" is attained:
- Press C key.