GM Service Manual Online
For 1990-2009 cars only

Special Tools

CH-47830 Holding Fixture

Removal Procedure

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

  1. Remove the brake master cylinder and power brake booster assembly. Refer to Brake Master Cylinder with Power Brake Booster and Chassis Control Module Replacement.
  2. Install the CH-47830 Holding Fixture to the master cylinder assembly.
  3. Position the CH-47830 Holding Fixture with the master cylinder assembly in a vise.
  4. Remove the master cylinder reservoir. Refer to Master Cylinder Reservoir Replacement.
  5. Remove the power brake booster. Refer to Power Brake Booster Replacement.

  6. Object Number: 2193498  Size: SH
  7. Remove the fluid level sensor wiring harness bracket bolt (1).

  8. Object Number: 2193501  Size: SH
  9. Remove the fluid level sensor wiring harness bracket (1).

  10. Object Number: 2193502  Size: SH
  11. Remove the electronic brake and traction control module bolts (1).

  12. Object Number: 2193503  Size: SH

    Note: When removing the electronic brake and traction control module from the brake master cylinder, ensure the locating pin remains in the brake master cylinder body.

  13. Remove the electronic brake and traction control module gasket (1) and module (2) from the brake master cylinder.
  14. Discard the electronic brake and traction control module gasket.

Installation Procedure


    Object Number: 2193503  Size: SH

    Note: Ensure the locating pin is in the master cylinder body.

  1. Install a new electronic brake and traction control module gasket (1) to the brake master cylinder.
  2. Install the electronic brake and traction control module (2) to the brake master cylinder.

  3. Object Number: 2193502  Size: SH
  4. Loosely install the electronic brake and traction control module bolts (1) to properly locate the electronic brake and traction control module.
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Tighten the electronic brake can traction control module bolts to  32 N·m (24 lb ft).

  7. Object Number: 2193501  Size: SH
  8. Install the fluid level sensor wiring harness bracket (1).

  9. Object Number: 2193498  Size: SH
  10. Install the fluid level sensor wiring harness bracket bolt (1) and tighten to  8 N·m (71 lb in).
  11. Install the power brake booster. Refer to Power Brake Booster Replacement.
  12. Install the master cylinder reservoir. Refer to Master Cylinder Reservoir Replacement.
  13. Remove the brake master cylinder assembly from the CH-47830 Holding Fixture .
  14. Install the brake master cylinder and power brake booster assembly. Refer to Brake Master Cylinder with Power Brake Booster and Chassis Control Module Replacement.
  15. Bleed the hydraulic system. Refer to Hydraulic Brake System Bleeding.
  16. Program the electronic brake and traction control module. Refer to Control Module References.