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Home >> Toyota >> 2016 >> Corolla S, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (Engine Control System (2ZR-FAE) - Diagnostic Codes (3 Of 8) (Model Code: ZRE172)) >> SFI System >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) [08/2016 - ] >> 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 Immediate: except Mexico Models
2 driving cycles: for Mexico Models
Sequence of Operation None