GM Prizm/Nova 1985-1993 Repair Guide

Anti-Lock Brake System Service



Failure to observe the following precautions may result in system damage.

Before performing electric arc welding on the vehicle, disconnect the Electronic Brake Control Module (EBCM) and the hydraulic modulator connectors.
When performing painting work on the vehicle, do not expose the Electronic Brake Control Module (EBCM) to temperatures in excess of 185°F (85°C) for longer than 2 hrs. The system may be exposed to temperatures up to 200°F (95°C) for less than 15 min.
Never disconnect or connect the Electronic Brake Control Module (EBCM) or hydraulic modulator connectors with the ignition switch ON.
Never disassemble any component of the Anti-Lock Brake System (ABS) which is designated non-serviceable; the component must be replaced as an assembly.
When filling the master cylinder, always use Delco Supreme 11 brake fluid or equivalent, which meets DOT-3 specifications; petroleum base fluid will destroy the rubber parts.

Some ABS-VI components are equipped with electrical connectors using a Connector Position Assurance (CPA) lock.