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Home >> Subaru >> 2016 >> Crosstrek Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (Except Hybrid) >> Camshaft Position Sensor >> Inspection >> Camshaft Position Sensor (Method With Oscilloscope)

Camshaft Position Sensor (Method With Oscilloscope)

  1. Prepare an oscilloscope.
  2. Remove the glove box. < Ref. to REMOVAL , Glove Box. >
  3. Connect the probe to ECM connector.
    Fig 1: Locating ECM Connector
    G09475469Courtesy of SUBARU OF AMERICA, INC.
    • Intake camshaft position sensor
      Fig 2: Connecting Probe To ECM Connector - Intake Camshaft Position Sensor
      G10318298Courtesy of SUBARU OF AMERICA, INC.
    • Exhaust camshaft position sensor
      Fig 3: Connecting Probe To ECM Connector - Exhaust Camshaft Position Sensor
      G10318299Courtesy of SUBARU OF AMERICA, INC.
    Camshaft position sensor Terminal No. Probe
    Intake RH 26 +
    LH 15 +
    Exhaust RH 14 +
    LH 25 +
    RH and LH 34 -
  4. Start the engine and let it idle.
  5. Check the waveforms and voltage.
    NOTE: For waveform and voltage, refer to "Engine Control Module (ECM) I/O Signal". < Ref. to ELECTRICAL SPECIFICATION , Engine Control Module (ECM) I/O Signal. >
  6. After inspection, install the related parts in the reverse order of removal.
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