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Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P0010 - P0125 >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

ECT sensor cold start monitor: 

TYPICAL MALFUNCTION THRESHOLDS

ECT sensor value change Below 5°C (9°F)

ECT sensor soak monitor: 

TYPICAL MALFUNCTION THRESHOLDS

Difference between current ECT sensor value and previous ECT sensor value when engine stopped Below 3°C (5.4°F) [varies with ECT of last trip engine stop]
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