Work step 9: Diagnostic of oxygen sensor control system
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- Engine at idle
Indicated on display
Fig 1: VAG1551 Scan Tool Display - Generating Readiness Code: Diagnostic Of Oxygen Sensor Control System (1 Of 2)
- Press buttons -0-, -3- and -7- to select display group numbers "037" and confirm with -Q- button.
Indicated on display
Fig 2: VAG1551 Scan Tool Display - Generating Readiness Code: Diagnostic Of Oxygen Sensor Control System (2 Of 2)
- Check specified value in display field 4.
DISPLAY GROUP 037: OXYGEN SENSOR CONTROL SYSTEM (BANK 1)
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 037: Oxygen sensor control system (Bank 1) | ||||
| Display | xx.x % | x.xxx Volt | xxx ms | Test ON |
| Indicated | Load | Voltage of oxygen sensor behind TWC, bank 1 |
Correction value between oxygen sensors 1 and 2, bank 1 |
Diagnostic condition |
| Work range | 0 to 175 % | 0.000 to 1.000 Volt | --- | Test OFF Test ON System OK System not OK |
| Value | 13.5 to 22.5 % | 0.1 to 1.000 Volt | -200ms to 200ms | System OK |
| Note | If "System not OK" is displayed: Check DTC memory, see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If specified value of "System OK" is reached:
- Press -C- button.
- Press buttons -0-, -3- and -8- to select display group number "038" and confirm input with -Q- button.
DISPLAY GROUP 038: OXYGEN SENSOR CONTROL SYSTEM (BANK 2)
| Display fields | ||||
|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |
| Display group 038: Oxygen sensor control system (Bank 2) | ||||
| Display | xx.x % | x.xxx Volt | xxx ms | Test ON |
| Indicated | Load | Voltage of oxygen sensor behind TWC, bank 2 |
Correction value between oxygen sensors 1 and 2, bank 2 |
Diagnostic condition |
| Work range | 0 to 175 % | 0.000 to 1.000 Volt | --- | Test OFF Test ON System OK System not OK |
| Value | 13.5 to 22.5 % | 0.1 to 1.000 Volt | -200ms to 200ms | System OK |
| Note | If "System not OK" is displayed: Check DTC memory, see DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING . | |||
If specified value of "System OK" is reached:
- Press -C- button.