LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2020 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Camshaft Position Sensor >> Inspection >> Camshaft Position Sensor
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

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.

    Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>REMOVAL .

  4. Attach the ST between the ECM, engine wiring harness and the bulkhead wiring harness.

    Refer to ENGINE (DIAGNOSTICS) (H4DO)>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD .

    Special tool: 

    CHECK BOARD (18460AA180)

  5. Connect the probe to ST.
    G13223954Courtesy of SUBARU OF AMERICA, INC.
    Camshaft position sensor Terminal No. Probe
    Intake RH (E158) No. 78 +
    LH (E158) No. 77 +
    Exhaust RH (E158) No. 65 +
    LH (E158) No. 64 +
    RH and LH (B134) No. 69 -
  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:
    Refer to ENGINE (DIAGNOSTICS) (H4DO)>CONTROL MODULE I/O SIGNAL .
  9. After inspection, install the related parts in the reverse order of removal.
    NOTE: For installation procedures of ECM connectors, refer to:
    Refer to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>ENGINE CONTROL MODULE (ECM)>INSTALLATION .
scientia non olet · About LEMON Manuals