Check Brake Override System

CAUTION: This test must be performed at the place where safety driving can be confirmed with a great care. While driving, always observe the road traffic law such as speed limit.

NOTE:

The value of «Accel. Opening Angle» on data monitor usually varies depending on the value of the accelerator sensor No. 1 voltage ratio. (Values do not become the same. For the values, refer to ES-41.)
You can judge that the control is functioning if the value of accelerator sensor No. 1 voltage ratio stays constant even though there is a voltage difference between «Accel. Opening Angle» on the data monitor and accelerator sensor No. 1 voltage, and at the same time the value of «Accel. Opening Angle» is changing. (The data during driving can be stored using Subaru Select Monitor 4 data save function. The stored data can be confirmed during driving.)
If a client claims that deceleration feel occurs when he/she intentionally depresses the accelerator pedal and the brake pedal at the same time, advice the client not to depress both pedals at the same time. (Example: Operating the brake pedal with the left foot while operating the accelerator pedal, etc.)

CHECK DTC .
Read all DTC using Subaru Select Monitor or general scan tool.
NOTE:
- Subaru Select Monitor
  For detailed operation procedures, refer to "Application help". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>READ DIAGNOSTIC TROUBLE CODE (DTC) .
- General scan tool
  For detailed operation procedures, refer to the general scan tool operation manual.
Are any DTCs displayed?

Yes: Check DTC using "List of Diagnostic Trouble Code (DTC)".

No: Go to 2 .
READ DATA MONITOR .
Read the value of «Stop Light Switch» using Subaru Select Monitor.

NOTE: For detailed operation procedures, refer to "Data Monitor". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Subaru Select Monitor .

Does the value of «Stop Light Switch» change to ON/OFF on the data monitor?

Yes: Go to 3 .

No: Check the stop light circuit.
CHECK BRAKE PEDAL .
Check the brake pedal.

Is the check result OK?

Yes: Go to 4 .

No: Adjust or replace the brake pedal. Ref. to BRAKE>BRAKE PEDAL .
READ DATA MONITOR .
Using the Subaru Select Monitor, read the values of «Accelerator Pedal Pos.#1» and «Accelerator Pedal Pos.#2» when operating the accelerator pedal from full closed to full open.

NOTE: For detailed operation procedures, refer to "Data Monitor". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>Subaru Select Monitor .

Do the values of «Accelerator Pedal Pos.#1» and «Accelerator Pedal Pos.#2» change continuously?

Yes: Go to 5 .

No: Replace the throttle opening angle sensor. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO)>THROTTLE BODY .
READ DATA MONITOR .
Using the Subaru Select Monitor, read the value of «Speed, vehicle» when driving at a constant speed of 16.1 km/h (10 MPH) or 64.4 km/h (40 MPH).

CAUTION: The driving test must be performed in compliance with the road traffic law such as speed limit.

NOTE: The data during driving can be stored using Subaru Select Monitor 4 data save function. The stored data can be confirmed during driving.

Is there noticeable change in the value displayed in «Speed, vehicle»?

Yes: Check the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>COMBINATION METER SYSTEM .

No: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.