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Home >> Lexus >> 2011 >> ES 350 >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010 - P0339)) >> SFI System >> DTC P0116: Engine Coolant Temperature Circuit Range/Performance Problem >> Typical Enabling Conditions

Typical Enabling Conditions

ALL:

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)
ECT sensor circuit (P0115, P0117, P0118, P0125) OK
IAT sensor circuit (P0112, P0113) OK
Soak time 0 second
Accumulated MAF 1241 g or more
Fuel cut OFF
Difference between ECT at engine start and IAT Less than 40°C (104°F)
ECT SENSOR SOAK MONITOR:

Battery voltage 10.5 V or more
Engine Running
ECT sensor circuit (P0115, P0117, P0118, P0125) OK
IAT sensor circuit (P0112, P0113) OK
Soak time 5 hours or more
Either of the following conditions (a) on (b) is met -
(a) ECT at engine start 60°C (140°F) or more
(b) Accumulated MAF 2334 g or more