1995 Buick Roadmaster BaseFACTORY OEM SERVICE PROCEDURE

Anti-Lock Brake System: Description

The Bosch 2U Anti-Lock Brake System (ABS) is designed to prevent wheel lock-up during heavy braking. This provides improved driver control and reduces the distance required to stop vehicle.

Major system components include the Electronic Brake Control Module (EBCM), speed sensors mounted at each front wheel, one rear speed sensor mounted in rear axle differential case, 2 instrument cluster warning indicators and Brake Pressure Modulator (BPM) valve assembly. Brake pressure modulator assembly houses electric pump motor and solenoid valves.

NOTE: For more information on brake system, see BRAKE SYSTEM article.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.