A Symptoms - Antilock Brake System
Symptoms - Antilock Brake SystemImportant: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - ABS before using the Symptom Tables in order to verify that all of the following are true: Diagnostic System Check
^ There are no DTCs set.
^ The control module(s) can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions.
Visual/Physical Inspection
^ Inspect for aftermarket devices which could affect the operation of the antilock brake system. Refer to Checking Aftermarket Accessories in Diagrams, Diagnsotic Aids.
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ Inspect the master cylinder reservoir for the proper brake fluid level.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections in Diagrams, Diagnsotic Aids.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
^ ABS Indicator Inoperative ABS Indicator Inoperative
^ ABS Indicator Always On ABS Indicator Always On
^ Traction Off Indicator Always On Traction Off Indicator Always On
^ Traction Off Indicator Inoperative Symptom Related Diagnostic Procedures