Abnormality Judgment
When the diagnostic execution conditions are established, calculate the estimated exhaust temperature. Judge as NG when the following conditions are established after engine starting within the predetermined time.
| Malfunction Criteria | Threshold Value |
|---|---|
| Estimated exhaust gas temperature | < Value from Map |
| Coolant temperature after starting the engine | -30 °C (-22 °F) | -20 °C (-4 °F) | -10 °C (14 °F) | 0 °C (32 °F) | 10 °C (50 °F) | 20 °C (68 °F) | 30 °C (86 °F) | 40 °C (104 °F) | 50 °C (122 °F) | 60 °C (140 °F) |
| Estimated exhaust gas temperature | 200 °C (392 °F) | 200 °C (392 °F) | 200 °C (392 °F) | 225 °C (437 °F) | 225 °C (437 °F) | 220 °C (428 °F) | 210 °C (410 °F) | 200 °C (392 °F) | 190 °C (374 °F) | 190 °C (374 °F) |
Time Needed for Diagnosis: 14 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.
| Malfunction Criteria | Threshold Value |
|---|---|
| Estimated exhaust gas temperature | ≥ Value from Map |
Time Needed for Diagnosis: Less than 1 second
- Idle speed diagnosis
Judge as NG when the following conditions are established after the predetermined time.
| Malfunction Criteria | Threshold Value |
|---|---|
| Continuous time of (Target engine speed - Actual engine speed > -200 RPM) | ≥ 6000 ms |
| Continuous time of (actual retard amount > 20 °CA) | ≥ 0 ms |
Time Needed for Diagnosis: 14 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Judge as NG when the following conditions are established with diagnosis enable conditions successful.
| Malfunction Criteria | Threshold Value |
|---|---|
| Continuous time of (Standard ignition timing - Actual ignition timing ≤ 0 °CA) | > 5000 ms |
Time Needed for Diagnosis: 5000 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.