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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0116 Engine Coolant Temperature Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor will run whenever these DTCs are not present P0100 - P0103 (MAF sensor)

Cold start monitor: 

TYPICAL ENABLING CONDITIONS

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 0 seconds or more
Accumulated MAF 1,610 g (56.8 oz.) or more
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (72°F)

Soak monitor: 

TYPICAL ENABLING CONDITIONS

Battery voltage 10.5V or more
Engine Running
IAT sensor circuit OK
Soak time 5 hours or more
When either condition below is met -
  • ECT at engine start
60°C (140°F) or more
  • Accumulated MAF
2,749 g (97 oz.) or more