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Home >> Lexus >> 2005 >> RX 330 AWD >> Repair and Diagnosis >> Engine Performance >> 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 CONDITIONS - ALL

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

ECT Sensor Stuck at Low ECT: 

TYPICAL ENABLING CONDITIONS - ECT SENSOR STUCK AT LOW ECT

Cumulative idle off period 250 seconds or more
Speed increase by 30 km/h (18.6 mph) 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 CONDITIONS - ECT SENSOR STUCK AT HIGH ECT

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
(1) Vehicle is stopped for 20 seconds or more and accelerated to more than 70 km/h (43.5 mph) within 40 seconds.

(2) Vehicle is driven by 65 km/h (40.4 mph) or more for 30 seconds or more and the vehicle speed reaches 43.5 mph (70 km/h). The vehicle is decelerated from 65 km/h (40.4 mph) to 3 km/h (1.86 mph) or less within 35 seconds and stopped for 10 seconds.
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