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Home >> Subaru >> 2020 >> Outback Touring XT >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (2.4L) >> Camshaft Position Sensor >> Inspection >> Camshaft Position Sensor
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Camshaft Position Sensor

  1. Disconnect the ground terminal from battery sensor. Refer to REPAIR CONTENTS>NOTE>BATTERY .
  2. Prepare an oscilloscope.
  3. Disconnect the connector from ECM in numerical order as shown in the figure.
    G13619529Courtesy of SUBARU OF AMERICA, INC.
  4. Attach the ST between the ECM, engine harness and the bulkhead wiring harness. Refer to ENGINE (Diagnostics) (H4DOTC)>General Description>PREPARATION TOOL>HOW TO USE CHECK BOARD .

    Special tool: 

    CHECK BOARD (18460AA150)

  5. Connect the probe to ST.
    G13619652Courtesy of SUBARU OF AMERICA, INC.
    Camshaft position sensor Terminal No. Probe
    Intake RH (E52) No. 20 +
    LH (E52) No. 29 +
    Exhaust RH (E52) No. 21 +
    LH (E52) No. 13 +
    RH and LH (B61) No. 40 -
  6. Connect the ground terminal to battery sensor. Refer to REPAIR CONTENTS>NOTE>BATTERY .
  7. Start the engine and let it idle.
  8. Check the waveforms and voltage.
    NOTE: For waveform and voltage, refer to ENGINE (Diagnostics) (H4DOTC)>Control Module I/O Signal>ELECTRICAL SPECIFICATION .
  9. After inspection, install the related parts in the reverse order of removal.
    NOTE: For installation procedures of ECM connectors, refer to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>Engine Control Module (ECM)>INSTALLATION .
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