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Subaru
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2012
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Outback Base, Standard Trans
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P0638 Throttle Actuator Control Range/Performance (Bank 1)
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Diagnostic Method
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Judgment time detail
Judgment time detail
Fig 1: Throttle Actuator Control - Judgment Timing Chart
Courtesy of SUBARU OF AMERICA, INC.
NOTE:
Judgment time is constantly 1000 ms with Actual opening angle ≤ Target opening angle.
Malfunction Indicator Light Illumination:
Illuminates as soon as a malfunction occurs.