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Subaru
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2021
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Outback Base
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Repair and Diagnosis
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Engine Performance
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Engine Control Systems
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Auto Start Stop System (Diagnostics)
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Diagnostic Procedure With Diagnostic Trouble Code (DTC)
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DTC P257F: Engine Hood Switch Circuit High
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General Description
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Outline Of Diagnosis
Outline Of Diagnosis
Detect OFF stuck in the hood switch and short circuit to power supply or open circuit of the hood switch circuit.
Judge as NG when both two hood switch signals are OFF.