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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Engine Control System (2ZR-FXE) - Diagnostic Codes (10 Of 15)) >> SFI System >> DTC P0420-00: Catalyst System Efficiency Below Threshold Bank 1 [09/2024 - ] >> Monitor Strategy

Monitor Strategy

WARNING: This page is about a different variant/trim than selected.
Related DTCs P0420: Catalyst deterioration
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 2 driving cycles: for Mexico models
Immediate: Except for Mexico models
Sequence of Operation None