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Home >> Subaru >> 2013 >> Impreza Base, 4D Sedan, Standard Trans >> Repair and Diagnosis >> Brakes >> Traction Control >> Vehicle Dynamics Control System (Except WRX) >> VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) >> Removal

VDC Control Module and Hydraulic Control Unit (VDCCM&H/U): Removal

  1. Disconnect the ground cable from battery.
  2. Remove the intake boot. < Refer to REMOVAL , Air Intake Boot. >
    CAUTION: Move aside the intake boot to perform the operation without disconnecting the PCV hose.
  3. Remove the VDC control module & hydraulic control unit (VDCCM&H/U).
    1. Remove any dirt from around the VDCCM&H/U.
    2. Pull up the lock lever (b) while pressing the lock button (a) and disconnect the VDCCM&H/U connector.
      CAUTION: Do not pull on the harness when disconnecting the connector.
      Fig 1: Removing VDC Control Module And Hydraulic Control Unit
      G08314720Courtesy of SUBARU OF AMERICA, INC.
    3. Using a flare nut wrench, disconnect each brake pipe from VDCCM&H/U.
      CAUTION:
      • Wrap the brake pipe with a vinyl bag so as not to spill the brake fluid on the painted surface of the vehicle body.
      • If brake fluid is spilled on the painted surface of the vehicle body, wash it off immediately with water and wipe clean.
      Fig 2: Locating Brake Pipe Flare Nut
      G08314721Courtesy of SUBARU OF AMERICA, INC.
    4. Remove the nuts and remove the VDCCM&H/U from the bracket - hydraulic unit.
    CAUTION:
    • Do not drop or bump the VDCCM&H/U.
    • Do not turn the VDCCM&H/U upside down or place it sideways for storage.
    • Be careful not to let foreign matter enter the VDCCM&H/U
    • Be careful that no water and fluid enter the connectors.
    Fig 3: Locating Hydraulic Unit Bracket Mounting Nuts
    G08314722Courtesy of SUBARU OF AMERICA, INC.