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Home >> Lexus >> 2010 >> GS 350 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P0354) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem >> Typical Enabling Conditions

Typical Enabling Conditions

ECT SENSOR COLD START MONITOR:

Monitor runs whenever following DTCs not present None
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 fail (P0112, P0113) Not detected
ECT sensor circuit fail (P0115, P0117, P0118) Not detected
Soak time 0 seconds or more
Accumulated MAF 1564 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:

Monitor runs whenever following DTCs not present None
Battery voltage 10.5 V or more
Engine Running
ECT sensor circuit (P0115, P0117, P0118) OK
IAT sensor circuit (P0112, P0113) OK
Soak time 5 hours or more
ECT at engine start 60°C (140°F) or more
Accumulated MAF 3232 g or more