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Home >> Toyota >> 2007 >> Highlander Base, 3.3 P, FWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System (3MZ-FE) (Except Hybrid) >> SFI System >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Enabling Conditions

Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS CHART

Monitor will run whenever these DTCs are not present. P0100, P0102, P0103 (MAF Sensor)

ECT Sensor Stuck at Low ECT: 

TYPICAL ENABLING CONDITIONS CHART

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: 

TYPICAL ENABLING CONDITIONS CHART

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 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.
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