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Home >> Subaru >> 2017 >> Impreza Base, 4D Sedan, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Speed Control System >> 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 cable from battery. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  2. Disconnect the ECM connector. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>Engine Control Module (ECM)>REMOVAL .
  3. Attach the ST between ECM and the engine wiring harness and the bulkhead harness. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>General Description>CAUTION .

    Special tool: 

    CHECK BOARD (18460AA120)

  4. Connect the battery ground terminal. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  5. Turn to IG ON.
  6. Measure the voltage between ECM connector terminals.
    Fig 1: ECM Connector End View
    G11253680Courtesy of SUBARU OF AMERICA, INC.
    Accelerator pedal sensor Accelerator pedal Terminal No. Standard
    Main Not depressed (full closed) 66 (+) - 55 (-) 0.3 - 1.1 V
    Depressed (full opened) 2.3 - 3.8 V
    Sub Not depressed (full closed) 64 (+) - 65 (-) 0.3 - 1.1 V
    Depressed (full opened) 2.3 - 3.8 V
  7. After inspection, restore the vehicle to its original state.
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