Diagnostic Method
Detect the trouble by calculating the response time of the rear oxygen sensor after fuel cut.
- Abnormality Judgment
Judge as NG when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| Time when rear oxygen sensor voltage changed from 0.3 V to 0.5 V. | > 4000 ms |
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 |
|---|---|
| Time when rear oxygen sensor voltage changed from 0.3 V to 0.5 V. | ≤ 4000 ms |
Time Needed for Diagnosis: 10 seconds