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Home >> Subaru >> 2017 >> Outback 2.5i >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Speed Control System (H4DO) >> 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, Repair Contents.>
  2. Remove the ECM. <Ref. to REMOVAL , Engine Control Module (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.> <Ref. to CAUTION , General Description.> ST 18460AA050 CHECK BOARD
  4. Connect the ground terminal to battery sensor. <Ref. to BATTERY , NOTE, Repair Contents.>
  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 Using ST - Main Sensor Side
    G11566874Courtesy of SUBARU OF AMERICA, INC.
    • Sub sensor side
    Fig 2: Measuring Voltage Between ECM Connector Terminals Using ST - Sub Sensor Side
    G11566875Courtesy of SUBARU OF AMERICA, INC.
    Accelerator pedal sensor Accelerator pedal Terminal No. Standard
    Main Not depressed (full closed) 29 (+) and 33 (-) 0.3 - 1.1 V
    Depressed (full opened) 2.3 - 3.8 V
    Sub Not depressed (full closed) 31 (+) and 34 (-) 0.3 - 1.1 V
    Depressed (full opened) 2.3 - 3.8 V
  7. After inspection, install the related parts in the reverse order of removal.