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2005
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LX 470
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine - Diagnostics
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Circuit Inspection
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DTC P0420: Catalyst System Efficiency Below Threshold (Bank 1), P0430: Catalyst System Efficiency Below Threshold (Bank 2)
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Component Operating Range
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Component Operating Range
COMPONENT OPERATING RANGE
Parameter
Standard Value
Catalyst deterioration level (Heated oxygen sensor signal length ratio)
0 to 1.0