Subaru Outback manuals

Subaru Outback (BR): ABS Sequence Control

Subaru Outback (BR) 2010-2015 Service Manual / Chassis / Vehicle Dynamics Control (VDC) / ABS Sequence Control

A: OPERATION

1) While the ABS sequence control is being performed, the operation of the hydraulic unit can be checked using the brake tester or pressure gauge after the hydraulic unit solenoid valve operation.

2) ABS sequence control can be started by the Subaru Select Monitor.

1. ABS SEQUENCE CONTROL WITH SUBARU SELECT MONITOR

NOTE: In the event of any trouble, the ABS sequence control will not operate.

1) Connect the Subaru Select Monitor to data link connector.

  1. Run the "PC application for Subaru Select Monitor".
  2. On "Main Menu" display, select {Each System Check}.
  3. Select {Brake Control System}. When {ABS} is displayed, select the [OK] button.
  4. Select the {ABS Function Check Mode} from {ABS Sequence Control Mode}.

2) Follow the procedures displayed in the Subaru Select Monitor to execute the following.

  1. When using a brake tester, press the brake pedal pad with a force of 1,000 N (102 kgf, 225 lbf).
  2. When using a pressure gauge, press the brake pedal so that the pressure gauge indicates 3,500 kPa (36 kgf/cm2, 511 psi).

3) The brake system being operated is displayed on the Subaru Select Monitor.

2. CONDITIONS FOR ABS SEQUENCE CONTROL

NOTE: The control operation starts at point A.

Subaru Outback. Vehicle Dynamics Control (VDC)

  1. All wheel speed
  2. Ignition key
  3. ABS warning light
  4. Stop light switch
  5. Valve relay
  6. FL decompression valve
  7. FL compression valve
  8. FR decompression valve
  9. FR compression valve
  10. RR decompression valve
  11. RR compression valve
  12. RL decompression valve
  13. RL compression valve
  14. Pump motor
  15. 2 seconds
  16. Light OFF
  17. Light ON
  18. 1.0 second
  19. 1.4 seconds
  20. 0.6 seconds
  21. 0.4 seconds
  22. Point A
  23. Reset
  24. Master cylinder pressure
  25. FL wheel cylinder pressure
  26. FR wheel cylinder pressure
  27. RR wheel cylinder pressure
  28. RL wheel cylinder pressure

B: SPECIFICATION

1. CONDITIONS FOR COMPLETION OF ABS SEQUENCE CONTROL

When the following conditions develop, the ABS sequence control stops and ABS operation is returned to the normal control mode.

VDC Sequence Control

A: OPERATION

1) While the VDC sequence control is performed, the operation of the hydraulic unit can be checked using the brake tester or pressure gauge after the hydraulic unit solenoid valve is operated.

2) VDC sequence control can be started by Subaru Select Monitor.

1. VDC SEQUENCE CONTROL WITH SUBARU SELECT MONITOR

NOTE: In the event of any trouble, sequence control will not operate.

1) Connect the Subaru Select Monitor to data link connector.

  1. Run the "PC application for Subaru Select Monitor".
  2. On "Main Menu" display, select {Each System Check}.
  3. Select {Brake Control System}. When {VDC} is displayed, select the [OK] button.
  4. Select the {VDC Function Check Mode} from {Function Check Sequence}.

2) Operate according to the procedures displayed in the Subaru Select Monitor.

3) The brake system being operated is displayed on the Subaru Select Monitor.

2. CONDITIONS FOR VDC SEQUENCE CONTROL

NOTE: The control operation starts at point A.

Subaru Outback. Vehicle Dynamics Control (VDC)

  1. All wheel speed
  2. Ignition key
  3. ABS warning light
  4. VDC warning light
  5. Stop light switch
  6. Valve relay
  7. VDC switching valve 1 FL
  8. VDC switching valve 1 FR
  9. VDC switching valve 2 FL
  10. VDC switching valve 2 FR
  11. FL decompression valve
  12. FL compression valve
  13. FR decompression valve
  14. FR compression valve
  15. RR decompression valve
  16. RR compression valve
  17. RL decompression valve
  18. RL compression valve
  19. Pump motor
  20. 2 seconds
  21. Approx. 1 second
  22. Light OFF
  23. Light ON
  24. 3.4 seconds
  25. 1 second
  26. 1.6 seconds
  27. Point A
  28. Reset
  29. 0.8 seconds
  30. 1.2 seconds
  31. 0.4 seconds
  32. Master cylinder pressure
  33. FR wheel cylinder pressure
  34. FL wheel cylinder pressure
  35. RL wheel cylinder pressure
  36. RR wheel cylinder pressure

B: SPECIFICATION

1. CONDITIONS FOR COMPLETION OF VDC SEQUENCE CONTROL

When the following conditions develop, the VDC sequence control stops and VDC operation is returned to the normal control mode.

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