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Home >> Toyota >> 2007 >> Prius Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

Case 1: ECT is between 35 and 60°C (95 and 140°F) 

TYPICAL MALFUNCTION THRESHOLDS - CASE 1

Engine coolant temperature change after engine start Less than 3°C (5.4°F)

Case 2: ECT is higher than 60°C (140°F) 

TYPICAL MALFUNCTION THRESHOLDS - CASE 2

Engine coolant temperature change after engine start 1°C (1.8°F)or less