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Home >> Lexus >> 2006 >> RX 330 FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System (3MZ-FE) >> SFI System >> 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 P0100, P0101, P0102, P0103 (MAF sensor)

ECT Sensor Stuck at Low ECT: 

ECT SENSOR STUCK AT LOW ECT

Cumulative idle off period 250 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: 

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"(1) Once or more

HINT:


(1) The vehicle is stopped for 20 seconds or more and accelerated to more than 43.5 mph (70 km/h) within 40 seconds.
(2) Following these steps: 1) the vehicle is driven at 40.4 mph (65 km/h) or more for 30 seconds or more and the vehicle speed reaches 43.5 mph (70 km/h); 2) the vehicle is decelerated from 40.4 mph (65 km/h) to 1.86 mph (3 km/h) or less within 35 seconds; and 3) the vehicle is stopped for 10 seconds.