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Home >> Chevrolet >> 2002 >> Impala LS >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Trouble Shooting >> Symptoms - Hydraulic Brakes >> Preliminary Information

Preliminary Information

  1. Perform Diagnostic System Check. See DIAGNOSTIC SYSTEM CHECK  . Before using the brake indicator symptom tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control module(s) can communicate via the serial data link.
  2. Perform the Brake System Vehicle Road Test before using the hydraulic brake symptom tables in order to duplicate the customer's concern. See BRAKE SYSTEM VEHICLE ROAD TEST  .
  3. Review the system operation in order to familiarize yourself with the system functions. See DESCRIPTION & OPERATION  .
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