WARNING: This page is about a different car, the 1988 Buick Riviera and 1988 Buick Reatta. However, it is still accessible from the selected car via links, so may be relevant.
Use this chart as indicated by FUNCTIONAL CHECK chart. Areas this chart will check are: EBCM power source, EBCM grounds and low fluid/pressure loop.
Fig 1: Flow Chart B "Anti-Lock" Light On & No Codes Set
Fig 2: Flow Chart B "Anti-Lock" Light On & No Codes Set