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Throttle Sensor Inspection (Method With Circuit Tester)

NOTE: Individual difference of the accelerator pedal may not be corrected sufficiently on the ECM side after DTCs were cleared or the battery was removed and installed on the vehicle. Therefore, when the reference voltage is not reached after following the procedure, repeat the ignition switch ON (engine OFF) and ignition switch OFF operations 40 times at intervals of three seconds or more, and then measure the voltage again.
  1. Remove the glove box lid assembly. Refer to GLOVE BOX .
  2. Turn the ignition switch to ON. (engine OFF)
  3. Check the voltage between ECM connector terminals.
    Fig 1: Locating Glove Box Lid Assembly
    G06648245Courtesy of SUBARU OF AMERICA, INC.
    Fig 2: Checking Voltage Between ECM Connector Terminals
    G07910643Courtesy 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. 4.04 V
Sub Not depressed (Full closed) 28 (+) and 29 (-) Approx. 1.48 V
Depressed (Full opened) Approx. 4.23 V
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