Diagnostic Method
Judge as NG when diagnosis 1 or diagnosis 2 becomes NG.
Diagnosis 1
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| |Intake air temperature 30 s after engine start - engine coolant temperature at engine start| |Intake air temperature 30 s after engine start - Ambient air temperature 30 s after engine start| |
> Value of Map 3 > Value of Map 4 |
MAP 3
| Ambient air temperature °C (°F) |
-30 (-22) | 30 (86) | 45 (113) | 60 (140) |
| |Intake air temperature 30 s after engine start - engine coolant temperature at engine start| °C (°F) |
12 (21.6°F) | 12 (21.6°F) | 22 (39.6°F) | 22 (39.6°) |
MAP 4
| Ambient air temperature °C (°F) |
-30 (-22) | 30 (86) | 45 (113) | 60 (140) |
| |Intake air temperature 30 s after engine start - engine coolant temperature at engine start| °C (°F) |
20 (36°F) | 20 (36°F) | 32 (57.6°F) | 32 (57.6°F) |
Time Needed for Diagnosis: Less than 1 second
Diagnosis 2
Judge as NG when the following conditions are established.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value |
|---|---|
| Output voltage difference between Max. and Min. | < 0.02 V (Equivalent to approximately 0.5°C (0.9°F) near 25°C (77°F)) (Equivalent to approximately 0.9°C (1.6°F) near -7°C (19.4°F)) |
Time Needed for Diagnosis: Less than 1 second
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.