Two problems related to brake antilock control unit/module have been reported for the 1997 Chevrolet Blazer. The most recently reported issues are listed below.
While driving abs warning light illuminated . Dealership indicated that abs sensor module had gone bad and needed to be replaced.
While driving there was noise from the brake motor then the abs warning light flashed on and brakes locked up. This problem was caused by a failure in the abs senor, and it needed replacement.