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Secondary Speed Sensor: Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Remove the instrument panel lower cover. Refer to INSTRUMENT PANEL LOWER COVER EI-63, REMOVAL, Instrument Panel Lower Cover.
  2. Set the probe of oscilloscope to TCM harness connector.

    Connector & terminal 

    (B54) No. 7 (+) - No. 14 (-): 

    Fig 1: Identifying Instrument Panel Lower Cover
    G07913391Courtesy of SUBARU OF AMERICA, INC.
  3. Start and warm up the engine.
  4. Check the waveform of secondary speed sensor with engine idling.
    Fig 2: Identifying Curve Between Secondary Speed Sensor And Engine Idling
    G06654439Courtesy of SUBARU OF AMERICA, INC.
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