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, using the Subaru Select Monitor, check that the accelerator opening angle signal indicates 100%, when the accelerator pedal is fully depressed, and then perform the inspection.
If the accelerator opening angle signal does not indicate 100%, check the accelerator pedal. Refer to SPEED CONTROL SYSTEMS(W/O STI)>ACCELERATOR PEDAL>INSPECTION .

After warming-up the engine, turn the ignition switch to OFF.
Turn the ignition switch to ON. (Engine OFF)

While reading the accelerator opening angle signal and throttle sensor voltage using Subaru Select Monitor, depress the accelerator pedal to fully open and fully closed. Refer to ENGINE (DIAGNOSTICS) (W/O STI)>SUBARU SELECT MONITOR>OPERATION>DISPLAY CURRENT ENGINE DATA .

NOTE: Due to the specification of the Subaru Select Monitor, value read from the accelerator opening angle signal is highlighted and displayed as the voltage readings of sub throttle sensor.

Throttle sensor	Acceleration opening angle signal	Standard
Main	0.0%	Approx. 0.7 V
Main	100.0%	Approx. 3.9 V
Sub	0.0%	Approx. 1.1 V
Sub	100.0%	Approx. 4.4 V

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Throttle Sensor (Method With SUBARU Select Monitor)

Use the Manual With the Right Hardware

When to See a Mechanic

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