Diagnostic Method
Detect the trouble by calculating the time from the completion of the fuel cut to the beginning of the rear oxygen sensor voltage starting to rise.
- Abnormality Judgment
Judge as NG when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| The number of times that the rear oxygen sensor voltage changed to 0.3 V after the fuel cut has completed (time counter) | > 3750 time(s) |
Time Needed for Diagnosis: 10 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG if the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| The number of times that the rear oxygen sensor voltage changed to 0.3 V after the fuel cut has completed (time counter) | ≤ 3750 time(s) |
Time Needed for Diagnosis: 10 seconds