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Home >> Toyota >> 2004 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 463 (Engine Control System (SFI) - Diagnostics) >> DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1) >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
TYPICAL MALFUNCTION THRESHOLDS

Detection Criteria Threshold
Catalyst deterioration level 0.6 or more
Number of times detection 3 times
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