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Home >> Lexus >> 2005 >> ES 330 >> Repair and Diagnosis >> Engine Performance >> System >> SFI System - Diagnostics >> DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITION REFERENCE

The monitor will run whenever this DTC is not present See LIST OF DISABLE A MONITOR 

ECT Sensor Stuck at Low ECT: 

ECT SENSOR TYPICAL ENABLING CONDITION

Cumulative idle off period 4 minutes and 10 seconds or more
Speed increase by 18.6 mph (30 km/h) or more 10 times or more
ECT 35 to 60°C (95 to 140°F)
IAT -6.7°C (20°F) or more

ECT Sensor Stuck at High ECT: 

TYPICAL ENABLING CONDITION

ECT 60°C (140°F) or more
IAT -6.7°C (20°F) or more
"Stop and go" (1) Once or more
"Steady driving and stop" (2) Once or more
Engine running time after engine start 0.3 seconds or more
(1) Vehicle is stopped for 20 seconds or more and accelerated to more than 43.5 mph (70 km/h) within 40 seconds.
(2) Vehicle is driven by 40.4 mph (65 km/h) or more for 30 seconds or more and the vehicle speed reaches 43.5 mph (70 km/h). The vehicle is decelerated from 40.4 mph(65 km/h) to 1.86 mph (3 km/h) or less within 35 seconds and stopped for 10 seconds.