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Home >> Subaru >> 2015 >> WRX Premium, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Speed Control System (Except STI) >> Accelerator Pedal >> Inspection >> Check Accelerator Pedal Sensor Area (Method With Circuit Tester)
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Check Accelerator Pedal Sensor Area (Method With Circuit Tester)

  1. Disconnect the ground terminal from battery sensor. <Ref. to BATTERY , NOTE, Note.>
  2. Remove the ECM. <Ref. to REMOVAL , Engine Control Module (ECM).>
  3. Install the ST between the ECM and bulkhead harness and the engine harness. <Ref. to CAUTION , General Description.>

    ST 18460AA030 CHECK BOARD

  4. Connect the ground terminal to battery sensor. <Ref. to BATTERY , NOTE, Note.>
  5. Turn the ignition switch to ON. (engine OFF)
  6. Measure the voltage between ECM connector terminals using ST. Main sensor side
    Fig 1: Measuring Voltage Between ECM Connector Terminals - Main Sensor Side
    G09476658Courtesy of SUBARU OF AMERICA, INC.

    Sub sensor side

    Fig 2: Measuring Voltage Between ECM Connector Terminals - Sub Sensor Side
    G10267372Courtesy of SUBARU OF AMERICA, INC.
    Accelerator pedal sensor Accelerator pedal Terminal No. Standard
    Main Not depressed (full closed) 17 (+) and 31 (-) 0.4 - 1.0 V
    Depressed (full opened) 2.4 - 3.7 V
    Sub Not depressed (full closed) 29 (+) and 19 (-) 0.4 - 1.0 V
    Depressed (full opened) 2.4 - 3.7 V
  7. After inspection, install the related parts in the reverse order of removal.
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