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Toyota
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2006
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Sequoia Limited, RWD
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Repair and Diagnosis
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Engine Performance
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Engine Control System
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Parts Location
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DTC P0418 Secondary Air Injection System Control "A" Circuit
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Component Operating Range
Component Operating Range
COMPONENT OPERATING RANGE
Diagnostic signal duty ratio from air injection control driver
70 to 90 % when secondary air injection system operating
and
0 % when secondary air injection system not operating