GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1265735  Size: SH

    Notice: Do not allow calipers to hang from the flexible hoses. Doing so can damage the hoses.

    Important: To guarantee uniform braking on both sides, both rotors must have identical surfaces regarding smoothness and scoring depth. For this reason, always replace both rotors.

  1. Disconnect the negative battery cable.
  2. Remove the cooling surge tank. Refer to Radiator Surge Tank Replacement in Engine Cooling.
  3. Disconnect the ABS wiring harness connector from the socket on the electronic brake control module (EBCM).
  4. Cover the connector and the socket with shop cloths to protect them from brake fluid.

  5. Object Number: 1265736  Size: SH

    Important: Take care not to allow air into the hydraulic unit or into the brake pipes from the master cylinder. If air gets into the hydraulic unit, it will require a bleeding procedure using a scan tool programmed for the DBC 7 ABS system. As long as no air enters the hydraulic unit, a simple bleeding procedure is all the system will require.

  6. Remove the brake pipes fitting nuts from the hydraulic unit.
  7. Remove the mounting bracket bolts on the hydraulic unit.
  8. Remove the DBC 7 ABS assembly.

Installation Procedure


    Object Number: 1265736  Size: SH
  1. Install the DBC 7 ABS assembly.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the mounting bracket bolts on the hydraulic unit.
  4. Tighten
    Tighten the bolts to 22 N·m (16 lb ft).

  5. Install the brake pipes fitting onto the hydraulic unit.
  6. Tighten
    Tighten the nuts to 16 N·m (12 lb ft).


    Object Number: 1265735  Size: SH
  7. Connect the ABS wiring harness connector to the socket on the EBCM.
  8. Install the cooling surge tank. Refer to Radiator Surge Tank Replacement in Engine Cooling.
  9. Connect the negative battery cable.
  10. Add new brake fluid.
  11. Bleed the brake system.
  12. Inspect the brake system for leaks.