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Home >> Subaru >> 2018 >> WRX STI >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Speed Control System (Except For 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)

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the ground terminal from battery sensor. Ref. to NOTE>NOTE>BATTERY >.
  2. Remove the ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (EXCEPT FOR STI)>Engine Control Module (ECM)>REMOVAL .
  3. Install the ST between the ECM and bulkhead harness and the engine wiring harness. Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>General Description>CAUTION >

    ST 18460AA030 CHECK BOARD

  4. Connect the ground terminal to battery sensor. Ref. to NOTE>NOTE>BATTERY >.
  5. Turn the ignition switch to ON. (Engine OFF)
  6. Measure the voltage between ECM connector terminals using ST.
    • Main sensor side
      G09476658
    • Sub sensor side
    G12443011
    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.