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LX 570
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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 Control System - Diagnostic Codes (3 Of 7)
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SFI System
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DTC P0418: Secondary Air Injection System Control "A" Circuit; DTC P0419: Secondary Air Injection System Control "B" Circuit [09/2015 - ]
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Component Operating Range
Component Operating Range
Diagnostic signal duty ratio from air injection control driver
70% or more, and 90% or less when secondary air injection system operating.
0% when secondary air injection system not operating.