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Home >> Toyota >> 2009 >> Tacoma Base, 4D Pickup, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System (1GR-FE) >> SFI System >> DTC P0116 Engine Coolant Temperature Circuit Range/Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

ECT Sensor Cold Start Monitor 

TYPICAL ENABLING CONDITIONS

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
Soak time 0 seconds or more
Accumulated MAF MT: 1238 g or more
AT: 1305 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 

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTCs not present None
Battery voltage 10.5 V or more
Engine Running
Soak time 5 hours or more
Either (a) or (b) condition met -
(a) ECT 60°C (140°F) or more
(b) Accumulated MAF MT: 2461 g or more
AT: 2382 g or more
IAT sensor circuit fail (P0112, P0113) Not detected