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Home >> Lexus >> 2008 >> RX 400h AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Control System (3MZ-FE)) >> SFI System >> DTC P0171 System Too Lean (Bank 1); DTC P0172 System Too Rich (Bank 1); DTC P0174 System Too Lean (Bank 2); DTC P0175 System Too Rich (Bank 2) >> Typical Enabling Conditions
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Typical Enabling Conditions

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL ENABLING CONDITIONS CHART

Monitor runs whenever following DTCs not present P0010, P0020 (VVT OCV Bank 1, 2)
P0011 (VVT System 1 - Advance)
P0012 (VVT System 1 - Retard)
P0021 (VVT System 2 - Advance)
P0022 (VVT System 2 - Retard)
P0031, P0032, P0051, P0052 (A/F sensor heater - Sensor 1)
P0100 - P0103 (MAF meter)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Insufficient ECT for Closed Loop)
P0335 (CKP sensor)
P0340, P0341 (CMP sensor)
P0500 (VSS)
Fuel system status Closed loop for more than 13 seconds
Battery voltage 11 V or more
Either of following conditions 1 or 2 set -
1. Engine RPM Below 1,100 RPM
2. Intake air amount per revolution 0.22 g/rev or more
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