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Check Accelerator Pedal Sensor Area (Method With Circuit Tester)

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  2. Disconnect the connector from ECM. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>ENGINE CONTROL MODULE (ECM)>REMOVAL .
  3. Attach the ST between ECM and the engine wiring harness and the bulkhead harness. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD .

    Special tool: 

    CHECK BOARD (18460AA190)

  4. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  5. Turn the ignition switch to ON.
  6. Measure the voltage between ECM connector terminals.
    G14601567Courtesy of SUBARU OF AMERICA, INC.
    Accelerator pedal sensor Accelerator pedal Terminal No. Standard
    Main Not depressed (full closed) 35 (+) - 19 (-) 0.4 - 1.0 V
    Depressed (full opened) 2.4 - 3.7 V
    Sub Not depressed (full closed) 33 (+) - 17 (-) 0.4 - 1.0 V
    Depressed (full opened) 2.4 - 3.7 V
  7. After inspection, restore the vehicle to its original state.
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