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Home >> Lexus >> 2016 >> CT 200h F Sport >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Diagnostic Codes (2 Of 3) >> SFI System >> DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected [08/2014 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever following DTCs are not present P0010 (Camshaft timing oil control valve assembly)
P0011 (VVT system - Advance)
P0012 (VVT system - Retard)
P0016 (VVT system - Misalignment)
P0031, P0032, P101D (Air fuel ratio sensor heater)
P0102, P0103 (Mass air flow meter)
P0106, P0107, P0108 (Manifold absolute pressure)
P0112, P0113 (Intake air temperature sensor)
P0115, P0117, P0118 (Engine coolant temperature sensor)
P0120, P0121, P0122, P0123, P0220, P0222, P0223, P2135 (Throttle position sensor)
P0125 (Insufficient coolant temperature for closed loop fuel control)
P014C, P014D, P015A, P015B, P2195, P2196, P2237, P2238, P2239, P2252, P2253 (Air fuel ratio sensor)
P0171, P0172 (Fuel system)
P0327, P0328 (Knock control sensor)
P0335 (Crankshaft position sensor)
P0340, P0342, P0343 (Camshaft position sensor)
P0351, P0352, P0353, P0354 (Igniter)
P106A (Evaporative emission control system pressure sensor - Manifold pressure sensor correlation)
P219A, P219C, P219D, P219E, P219F (Air fuel ratio sensor imbalance)
Time after engine started 3 seconds or more
Time after engine fuel cut 2000 msec or more
Engine speed 950 to 1600 rpm
Vehicle speed 20 km/h (12.5 mph) or more
Engine coolant temperature 70°C (158°F) or higher
Auxiliary battery voltage 11 V or higher
Intake air temperature -10°C (14°F) or higher
Atmospheric pressure 76 kPa(abs) [750 mmHg(abs)] or higher