LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2011 >> RX 450h 3.5 B >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0300-P1423) >> SFI System >> DTC P0401: Exhaust Gas Recirculation Flow Insufficient Detected >> Typical Enabling Conditions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Enabling Conditions

Monitor runs whenever following DTCs are not present None
Time after engine started 3 seconds or more
Time after engine fuel cut 1400 msec or more
Engine speed 850 to 1600 RPM
Vehicle speed 12.5 mph (20 km/h) or more
Engine speed change (/65 msec.) -20 to 20 RPM
Time after engine load becomes stable More than 1.2 seconds
Engine coolant temperature 75°C (167°F) or more
Battery voltage 11 V or more
Intake air temperature -10°C (14°F) or more
Atmospheric pressure 76 kPa (570 mmHg) or more