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Home >> Lexus >> 2024 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Engine Control System (2GR-FSE) - Diagnostic Codes (3 Of 5)) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) [09/2014 - 11/2017] >> Monitor Strategy

Monitor Strategy

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Related DTCs P0420: Catalyst deterioration (bank 1)
P0430: Catalyst deterioration (bank 2)
Required Sensors/Components (Main) Air fuel ratio sensor
Heated oxygen sensor
Required Sensors/Components (Related) Intake air temperature sensor
Mass air flow meter sub-assembly
Crankshaft position sensor
Engine coolant temperature sensor
Frequency of Operation Once per driving cycle
Duration Approximately 30 seconds
MIL Operation Immediate
Sequence of Operation None
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