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Home >> Toyota >> 2006 >> Corolla CE, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Control System (SFI) (2ZZ-GE) - Diagnostics) >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

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TYPICAL MALFUNCTION THRESHOLDS

Occasions following condition set: 3 times or more
TWC deterioration level 0.5 or more