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Outback 2.5i
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Repair and Diagnosis
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Engine Performance
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Engine Control System (Diagnostics - Introduction) (H4DO)
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Engine Control Module (ECM) I/O Signal
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Electrical Specification
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Waveform 9
Waveform 9
Fig 1: Waveform 9
Courtesy of SUBARU OF AMERICA, INC.
Measured terminal
Electronic throttle control motor (+) signal (E158) No. 14 (+) - Engine ground 3 (E158) No. 63 (-):
Measuring condition
While engine idling