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Home >> Lexus >> 2007 >> ES 350 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P0010 - P0158 >> DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS - ALL

Monitor runs whenever following DTCs are not present P0100 - P0103 (MAF sensor)

ECT sensor cold start monitor: 

TYPICAL ENABLING CONDITIONS - 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 OK
Soak time 5 hours
Accumulated MAF 1,056.06 g or more
Engine Running
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (104°F)

ECT sensor soak monitor: 

TYPICAL MALFUNCTION THRESHOLDS - ECT SENSOR SOAK MONITOR

Battery voltage 10.5 V or more
Engine Running
Soak time 5 hours or more
ECT at engine start 60°C (140°F) or more
Accumulated MAF 2,101.98 times or more