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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - SFI System Diagnostics (1 Of 4) >> DTC P0101 Mass Air Flow Circuit Range / Performance Problem >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever following DTCs not present P0115 - P0118 (Engine coolant temperature sensor)
P0120 - P0223, P2135 (Throttle position sensor)
P0125 (Insufficient engine coolant temperature for closed loop)
P0335 (Crankshaft position sensor)
P0340 (Camshaft position sensor)
Throttle position (Throttle position sensor voltage) 0 24 V or more
Time after engine start 5 seconds or more
Battery voltage 10 5 V or more
Engine coolant temperature 70°C (158°F) or more
Intake air temperature sensor circuit OK
Engine coolant temperature sensor circuit OK
Crankshaft position sensor circuit OK
Throttle position sensor circuit OK
Canister pressure sensor circuit OK
EVAP leak detection pump OK
EVAP vent valve OK