Subaru Outback manuals

Subaru Outback: Basic Diagnostic Procedure

A: PROCEDURE

CAUTION: Remove foreign matter (dust, water, oil etc.) from the VDCCM&H/U connector during removal and installation.

NOTE:

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

Check List for Interview

A: CHECK

Check the following item about the vehicle's state.

1. STATE OF ABS WARNING LIGHT

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

2. STATE OF VDC WARNING LIGHT & VDC INDICATOR LIGHT

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

3. STATE OF VDC OFF INDICATOR LIGHT

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

4. CONDITIONS UNDER WHICH TROUBLE OCCURS

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

General Description

A: CAUTION

1. SUPPLEMENTAL RESTRAINT SYSTEM "AIRBAG"

Airbag system wiring harness is routed near the ABS wheel speed sensor and VDCCM&H/U.

CAUTION:

B: INSPECTION

Before performing diagnosis, check the following items which might affect VDC problems.

1. BATTERY

Measure the battery voltage and check electrolyte.

Standard voltage: 12 V or more

Specific gravity: 1.260 or more

2. GROUND

Check the tightening torque of ground (GV) bolt for VDC.

Tightening torque: 13 N*m (1.3 kgf-m, 9.6 ft-lb)

3. BRAKE FLUID

1) Check the brake fluid level.

2) Check the brake fluid for leaks.

4. HYDRAULIC UNIT

Check the hydraulic unit.

5. BRAKE DRAG

Check for brake drag.

6. BRAKE PAD AND ROTOR

Check the brake pad and rotor.

7. TIRE

Check the tire specifications, tire wear and air pressure.

<Ref. to WT-2, SPECIFICATION, General Description.>

C: PREPARATION TOOL

1. SPECIAL TOOL

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

2. GENERAL TOOL

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

Electrical Component Location

A: LOCATION

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

  1. VDC control module & hydraulic control unit (VDCCM&H/U)
  2. Connector
  3. VDC OFF switch
  4. ABS warning light
  5. Brake warning light (EBD warning light)
  6. VDC warning light & VDC indicator light
  7. VDC OFF indicator light
  8. Steering angle sensor
  9. Transmission control module (TCM)
  10. Data link connector
  11. Magnetic encoder
  12. ABS wheel speed sensor
  13. Engine control module (ECM)
  14. Stop light & brake switch

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

Control Module I/O Signal

A: ELECTRICAL SPECIFICATION

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

NOTE:

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

B: WIRING DIAGRAM

Subaru Outback. Vehicle Dynamics Control (VDC) (Diagnostics)

  1. Battery
  2. Ignition switch
  3. VDC control module & hydraulic control unit (VDCCM&H/U)
  4. VDC control module
  5. Valve relay
  6. Pressure sensor
  7. Yaw rate & G sensor
  8. Motor relay
  9. Motor
  10. Front inlet solenoid valve LH
  11. Front outlet solenoid valve LH
  12. Front inlet solenoid valve RH
  13. Front outlet solenoid valve RH
  14. Rear inlet solenoid valve LH
  15. Rear outlet solenoid valve LH
  16. Rear inlet solenoid valve RH
  17. Rear outlet solenoid valve RH
  18. Primary cut solenoid valve
  19. Primary suction solenoid valve
  20. Secondary cut solenoid valve
  21. Secondary suction solenoid valve
  22. Data link connector
  23. VDC OFF switch
  24. Combination meter
  25. VDC OFF indicator light
  26. VDC warning light & VDC indicator light
  27. ABS warning light
  28. Brake warning light (EBD warning light)
  29. Brake fluid level switch
  30. Stop light switch
  31. Stop light
  32. Body integrated unit
  33. Engine control module (ECM)
  34. Transmission control module (TCM)
  35. Parking brake control module
  36. Steering angle sensor
  37. Clutch stroke sensor (MT model only)
  38. Front ABS wheel speed sensor LH
  39. Front ABS wheel speed sensor RH
  40. Rear ABS wheel speed sensor LH
  41. Rear ABS wheel speed sensor RH

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