April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Sensor (Method With Circuit Tester)

Disconnect the ground cable from battery.
Remove the front pillar lower trim and console side panel lower RH of passenger's side.
Detach the floor mat of passenger's seat.
Remove the protect cover.

Fig 1: Locating Protect Cover Mounting Screws
Courtesy of SUBARU OF AMERICA, INC.
Remove the ECM from vehicle.

Fig 2: Locating ECM Mounting Bolts
Courtesy of SUBARU OF AMERICA, INC.
Turn the ignition switch to ON. (engine OFF)

Measure the voltage between ECM connector terminals.

Fig 3: Measuring Voltage Between ECM Connector Terminals

G08543846

Courtesy of SUBARU OF AMERICA, INC.

Throttle sensor	Accelerator pedal	Terminal No.	Standard
Main	Not depressed (Full closed)	18 (+) and 1 (-)	Approx. 0.6 V
Main	Depressed (Full opened)	18 (+) and 1 (-)	Approx. 4.04 V
Sub	Not depressed (Full closed)	28 (+) and 1 (-)	Approx. 1.48 V
Sub	Depressed (Full opened)	28 (+) and 1 (-)	Approx. 4.23 V

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)