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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 P0420 Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2) >> Monitor Strategy
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Monitor Strategy

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.
MONITOR STRATEGY CHART

Related DTCs P0420: Catalyst (Bank 1) detection
P0430: Catalyst (Bank 2) detection
Required Sensors/Components (Main) TWC
Required Sensors/Components (Related) A/F sensor, heated oxygen sensor, intake air temperature sensor, mass air flow meter, crankshaft position sensor and engine coolant temperature sensor
Frequency of Operation Once par driving cycle
Duration 150 seconds or more
MIL Operation 2 driving cycles
Sequence of Operation None