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Home >> Saturn >> 2009 >> Astra XE, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Antilock Brake System >> Repair Instructions >> Brake Pressure Modulator Valve Replacement >> Removal Procedure

Removal Procedure

    NOTE: It is essential to comply with the instructions for the hydraulic modulator and the ABS control unit. Refer to ABS Control Unit General Repair Specification .
  1. Remove the cover of the brake fluid reservoir.
  2. Siphon out as much brake fluid as possible with a siphon bottle.
  3. Remove the battery.
    1. Remove the ground connection nut and remove the terminal from the battery.
    2. Remove the positive connection nut and remove the positive terminal from the battery.
    3. If present, remove the thermal protection (battery jacket).
    4. Remove the bracket that holds the battery.

      Remove the bolt. Use a magnetic nut to prevent the bolt from falling into the engine compartment.

    5. Remove the battery.
  4. Fig 1: View Of Preheater System Control Unit, Wiring Harness Plug, Clip, Cable Ties And Bolts
    GM1936696Courtesy of GENERAL MOTORS CORP.
  5. Remove the battery support.

    Remove the 3 bolts (2).

  6. NOTE: Cooling system remains sealed.
  7. Remove the coolant surge tank.
    1. Remove the securing clip of the surge tank. Use a hook and pull the clip to the front of the vehicle.
    2. Disconnect the wiring harness plug, below the surge tank, from the coolant level sensor.
    3. Pull the coolant surge tank to the front of the vehicle and set the coolant surge tank aside.
  8. Fig 2: View Of Hydraulic Modulator Hydraulic Lines And Bolts
    GM1937847Courtesy of GENERAL MOTORS CORP.
  9. Remove the hydraulic modulator.
    1. Disconnect the hydraulic modulator wiring harness plug.
    2. Remove the 6 hydraulic lines (2).
    3. Install the 6 sealing plugs on the hydraulic modulator.
    4. Remove the 3 bolts (1).