Work step 10: Diagnostic of oxygen sensor aging after catalytic converter
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- Increase engine speed until exhaust temperature of 250 °C is reached in display field 2.
Indicated on display
Fig 1: VAG 1551 Scan Tool Display - Work Step 10, Diagnostic Of Oxygen Sensor Aging After Catalytic Converter (1 Of 2)
- Press buttons -0-, -4-, and -3- to select "display group number 043" and confirm input with -Q- button.
Indicated on display
Fig 2: VAG 1551 Scan Tool Display - Work Step 10, Diagnostic Of Oxygen Sensor Aging After Catalytic Converter (2 Of 2)
- Check specified value in display field 4.
DISPLAY GROUP 043: OXYGEN SENSOR AGING OXYGEN SENSOR AFTER TWC (BANK 1)
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 043: Oxygen sensor aging oxygen sensor after TWC (Bank 1) | ||||
| Display | xxx/RPM | xxx °C | x.xxx V | Test ON |
| Indicated | Engine speed (RPM) | Catalyst temperature | Voltage of oxygen sensor after TWC Bank 1 | Diagnostic condition |
| Work range | 0 to 6800/RPM | 70 to 850 °C | 0.00 to1.00 Volts | Test OFF Test ON B1-S2 OK B1-S2 not OK |
| Value | 650 to 720/RPM | approx 250 °C | 0.00 to 1.00 Volts | B1-S2 OK |
| NOTE | If "B1-S2 not OK" is displayed: Check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If specified value of "B1-S2 OK" is reached:
- Press -C- button.
- Press buttons -0-, -4-, and -4- to select display group number 044 and confirm input with -Q- button.
DISPLAY GROUP 043: OXYGEN SENSOR AGING OXYGEN SENSOR AFTER TWC (BANK 2)
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 043: Oxygen sensor aging oxygen sensor after TWC (Bank 2) | ||||
| Display | xxx/RPM | xxx °C | x.xxx Volts | Test ON |
| Indicated | Engine speed (RPM) | Catalyst temperature | Voltage of oxygen sensor after TWC Bank 2 | Diagnostic condition |
| Work range | 0 to 6800/RPM | 70 to 850 °C | 0.00 to 1.00 Volts | Test OFF Test ON B2-S2 OK B2-S2 not OK |
| Value | 650 to 720/RPM | approx. 250 °C | 0.00 to 1.00 Volts | B2-S2 OK |
| NOTE | If "B2-S2 not OK" is displayed: Check DTC memory . See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If specified value of "B2-S2 OK" is reached:
- Press -C- button.