Diagnostic Method
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Judge NG when the estimated engine coolant temperature comes to 75°C (167°F) before the engine coolant temperature becomes 75°C (167°F) and the difference between them becomes more than 30°C (86°F). Judge OK when the engine coolant temperature comes to 75°C (167°F) before judging NG.
- Abnormality Judgment
Judge NG when the cumulative time becomes more than 30 seconds after completing all the malfunction criteria below.
- Judgment Value JUDGMENT VALUE (ABNORMALITY JUDGMENT)
Malfunction Criteria Threshold Value (Estimated-measured) coolant temperature ≥ 30°C (54°F) Engine coolant temperature < 75°C (167°F) Estimated coolant temperature ≥ 75°C (167°F) Vehicle speed ≥ 40 km/h (25 MPH) Injector pulse ≥ 1.92 milliseconds
Time Needed for Diagnosis : 30 seconds
Malfunction Indicator Light Illumination : Illuminates when malfunction occurs in 2 continuous driving cycles.