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Throttle Sensor Inspection (Method With Circuit Tester)

  1. Remove the lower inner trim of passenger's side. < Refer to REMOVAL , Lower Inner Trim. >
  2. Turn over the floor mat of passenger's seat.
  3. Remove the protect cover.
    Fig 1: Locating Protecting Cover Mounting Screws
    G08538628Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the nuts and bolts which hold the ECM to the bracket.
    Fig 2: Locating ECM Mounting Nuts
    G08538629Courtesy of SUBARU OF AMERICA, INC.
  5. Turn the ignition switch to ON. (engine OFF)
  6. Measure the voltage between ECM connector terminals.
    Fig 3: Measuring Voltage Between ECM Connector Terminals
    G08538630Courtesy of SUBARU OF AMERICA, INC.
    Throttle sensor Accelerator pedal Terminal No. Standard
    Main Not depressed (Full closed) 18 (+) and 29 (-) Approx. 0.6 V
    Depressed (Full opened) Approx. 3.96 V
    Sub Not depressed (Full closed) 28 (+) and 29 (-) Approx. 1.48 V
    Depressed (Full opened) Approx. 4.17 V
  7. After inspection, install the related parts in the reverse order of removal.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb) 

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