LEMON Manuals
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LX 570
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Control System - Diagnostic Codes (3 Of 7)
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SFI System
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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1); DTC P0430: Catalyst System Efficiency Below Threshold (Bank 2) [09/2015 - 08/2017]
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Typical Malfunction Thresholds
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Typical Malfunction Thresholds
Oxygen Storage Capacity (OSC) of catalyst (Normalized)
Less than 1