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Home >> Lexus >> 2005 >> IS 300 Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine - Diagnostics >> DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

TYPICAL MALFUNCTION THRESHOLDS

Detection Criteria Threshold
Time until "engine coolant temperature" detection temperature reaches feedback start temperature
When the temperature at the time of engine starting is 1.7°C (35.1°F) or more Engine coolant temperature is less than "closed-loop enable temperature" when 2 min. or more after engine start
When the temperature at the time of engine starting is "-9.5°C (14.9°F)" to "1.7°C (35.1°F)" Engine coolant temperature is less than "closed-loop enable temperature" when 5 min. or more after engine start
When the temperature at the time of engine starting is -9.5°C (14.9°F) or less Engine coolant temperature is less than "closed-loop enable temperature" when 20 min. or more after engine start