Diagnostic Method
- Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
JUDGMENT VALUE REFERENCE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| Battery voltage | ≥ 10.9 V |
| Time of heater control duty at 70 % or more | ≥ 36000 ms |
| Front oxygen (A/F) sensor impedance. | ≥ 500 Ω |
Time Needed for Diagnosis: 5000 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
- Normality Judgment
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.
JUDGMENT VALUE REFERENCE CHART
| Malfunction Criteria | Threshold Value |
|---|---|
| Battery voltage | ≥ 10.9 V |
| Front oxygen (A/F) sensor impedance. | ≥ 500 Ω |
Time Needed for Diagnosis: Less than 1 second