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Home >> Lexus >> 2012 >> IS 350 Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0010-P014F)) >> SFI System >> DTC P0111: Intake Air Temperature Sensor Gradient Too High >> Typical Enabling Conditions
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Typical Enabling Conditions

ALL

Monitor runs whenever following DTCs are not present None
AFTER ENGINE STOP

Time after engine start 10 seconds or more
Battery voltage 10.5 V or more
ECT at ECM started by internal engine off timer -40°C (-40°F) or more
ECT before engine stop 70°C (158°F) or more
Time that MAF is low before engine stop 2100 seconds or more
IAT sensor circuit fail (P0112, P0113) Not detected
ECT sensor circuit fail (P0115, P0117, P0118) Not detected
MAF sensor circuit fail (P0102, P0103) Not detected
Accumulated mass air flow amount in previous driving cycle 3768 g or more
Key-off duration 30 minutes
AFTER COLD ENGINE START

Key-off duration 5 hours or more
Time after engine start 10 seconds or more
IAT sensor circuit fail (P0112, P0113) Not detected
ECT sensor circuit fail (P0115, P0117, P0118) Not detected
MAF sensor circuit fail (P0102, P0103) Not detected
Engine coolant temperature 70°C (158°F) or more
Accumulated MAF amount 3768 g or more
Either of the following conditions is met Condition a or b
a. Duration while engine load is low 120 second or more
b. Duration while engine load is high 10 seconds or more