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Home >> Lexus >> 2010 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0340) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

COLD START MONITOR:

ECT change Less than 5°C (9°F)
SOAK MONITOR:

Difference between current ECT sensor value and previous ECT sensor value when engine stopped Less than 5°C (9°F)
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