Diagnostic Method
- Exhaust gas temperature diagnosis
Abnormality Judgment
Calculate the estimated exhaust gas temperature when the diagnostic enable condition is established. Judge as NG when the following conditions are established in 14 seconds after starting the engine.
Judgment Value
| Malfunction Criteria | Threshold Value |
|---|---|
| Estimated exhaust gas temperature | < Value from Map 1 |
Map 1
| Engine coolant temperature at engine start | -40°C (-40°F | -30° (-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) | 45°C (113°F) |
| Threshold Value | 200°C (392°F) | 200°C (392°F | 200°C (392°F | 200°C (392°F) | 97°C (207°F) | 97°C (207°F | 96°C (205°F | 92°C (198°F | 89°C (192°F) | 88°C (190°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 when the following conditions are established after the specified amount of time has passed.
Judgment Value
| Malfunction Criteria | Threshold Value |
|---|---|
| Estimated exhaust gas temperature | ≥ Value from Map 1 |
- Idle speed diagnosis
Judge as NG when all of the following conditions are established, and judge as OK when the following conditions are not met.
| Malfunction Criteria | Threshold Value |
|---|---|
| Continuous time of (Target engine speed - Actual engine speed > 100 rpm) | ≥ 6 seconds (AT) ≥ 5 seconds (MT) |
Time Needed for Diagnosis: 6 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.