Test conditions
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.
- Increase engine speed until exhaust temperature 200 °C display zone 2 has been reached.
Indicated on display
Fig 1: VAG 1551 Scan Tool Display - Diagnosis Of Oxygen Sensor Aging Before Catalytic Converter (1 Of 2)
- Enter "034" for "display group number 034" and confirm entry with Q key.
Display readout
Fig 2: VAG 1551 Scan Tool Display - Diagnosis Of Oxygen Sensor Aging Before Catalytic Converter (2 Of 2)
- Check specification in display zone 4:
DISPLAY GROUP 034: OXYGEN SENSOR AGING, OXYGEN SENSOR BEFORE CATALYTIC CONVERTER (BANK 1)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 034: Oxygen sensor aging, oxygen sensor before catalytic converter (bank 1) | ||||
| Display | xxx rpm | xxx °C | x.x s | Test ON |
| Display | Engine speed | Exhaust gas temperature | Period Oxygen sensor before catalytic converter |
Diagnosis status |
| Range | min.: 550 rpm max.: 7200 rpm |
70...850 °C | 0.0...3.0 seconds | Test OFF Test ON B1-P1 OK B1-P1 NOK |
| Specified value | 670...820 rpm | Above 200 °C | 0.1...1.8 seconds | B1-P1 OK |
| Note: | If "B1-P1 NOK" is displayed: Check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If the specified value in display zone 4 "B1 -P1 OK" is attained:
- Press C key.
- Press keys 0, 3 and 5 for "display group number 35" and confirm entry with Q key.
DISPLAY GROUP 035: OXYGEN SENSOR AGING, OXYGEN SENSOR BEFORE CATALYTIC CONVERTER (BANK 2)
| Display zones | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 035: Oxygen sensor aging, oxygen sensor before catalytic converter (bank 2) | ||||
| Display | xxx rpm | xxx °C | x.x s | --- |
| Display | Engine speed | Exhaust gas temperature | Period Oxygen sensor before catalytic converter |
Diagnosis status |
| Range | min.: 550 rpm max.: 7200 rpm |
70...850 °C | 0.0...3.0 seconds | Test OFF Test ON B2-P1 OK B2-P1 NOK |
| Specified value | 670...820 rpm | Above 200 °C | 0.1...1.8 seconds | B2-P1 OK |
| Note: | If "B2-P1 NOK" is displayed: Check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If the specified value in display zone 4 "B2 -P1 OK" is attained:
- Press C key.