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Home >> Lexus >> 2009 >> IS 250 AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (DTCS P0010 - P0368) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

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Monitor runs whenever following DTCs are not present None
ECT SENSOR COLD START MONITOR

Battery voltage 10.5 V or more
Time after engine start 1 second or more
ECT at engine start Less than 60°C (140°F)
IAT sensor circuit (P0110, P0112 and P0113) OK
Soak time 0 second or more
Accumulated MAF Manual transmission: 1441.99 g or more
Automatic transmission: 930.97 g or more
Engine Running
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (72°F)
ECT SENSOR SOAK MONITOR

Battery voltage 10.5 V or more
Engine Running
Soak time 5 hours
ECT at engine start 60°C (140°F) or more
Accumulated MAF Manual transmission: 2652.82 g or more
Automatic transmission: 1910.19 g or more